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ELECTRICAL WIRING AND ESTIMATION
Objective
bull To know about the following concepts
bull Indian Electricity Rules(1956)
bull Selection of wiring and its types
bull Condition and requirements for all domestic commercial and industrial installation steps
bull Estimation and wiring calculation for domestic building
Indian Electricity Rules(1956)
Indian electricity rules have been framed to ensure safety satisfactory operation of equipment to avoid fire risk
Indian Electricity Rules(1956)
Rule 28 Voltage
Potential difference between the two any two conductors are called as voltage and that can be measured by means of voltmeter
Low voltage Does not exceed 250v under normal condition
Medium voltage Does not exceed 650v under normal condition
High voltage Does not exceed 22kv under normal condition
Extra High voltage voltage exceed 22kv
Indian Electricity Rules(1956)Rule 30 Service Lines and apparatus on consumer premises
1 The supplier shall ensure that all electric supply lines wires fittings and apparatus belonging to him or under his control which are on a consumers premises are in safe condition
2 Service lines placed by the supplier on the premises of a consumer which are underground or which are accessible shall be so insulated and protected by the supplier as to be secured under all ordinary conditions against electrical mechanical chemical or other injury to the insulation
3 The consumer shall as far as circumstances permit take precautions for the safe custody of the equipment on his premises belonging to the supplier
4 The consumer shall also ensure that the installation under his control is maintained in a safe condition
Indian Electricity Rules(1956)Rule 31 Cut-out on consumerrsquos premises
bull The supplier shall provide a suitable cut-out in each conductor of every service line other than an earthed or earthed neutral conductor
bull Where more than one consumer is supplied through a common service line each such consumer shall be provided with an independent cut-out at the point of junction to the common service
bull Every electric supply line other than the earthed or earthed neutral conductor of any system or the earthed external conductor of a concentric cable shall be protected by a suitable cut-out by its owner
Indian Electricity Rules(1956)Rule 46 Periodical inspections and testing of consumerrsquos installation
bull Where an installation is already connected to the supply system of the supplier every such installation shall be periodically inspected and tested at intervals not exceeding five years either by the Inspector [under the control of the Central Government]
bull where the supplier is directed by the Central or the State Government as the case may be to inspect and test the installation he shall report on the condition of the installation to the consumer concerned in a form approved by the Inspector and shall submit a copy of such report to the Inspector
bull The fees for such inspection and test shall be determined by the Central or the State Government as the case may be in the case of each class of consumers and shall be payable by the consumer in advance
bull Customer give surety to the supplier for good maintenance
Indian Electricity Rules(1956)
Rule 47 Testing of consumerrsquos installation
Upon receipt of an application for a new or additional supply of energy and before connecting the supply or reconnecting the same after a period of six months the supplier shall inspect and test the applicants installation
If as a result of such inspection and test the supplier is satisfied that the installation is likely to constitute danger he shall serve on the applicant a notice in writing requiring him to make such modifications as are necessary to render the installation safe
Indian Electricity Rules(1956)
Rule 54 Declared voltage of supply to consumer
Declared voltage at the supply point by more than 5 in the case of low or medium voltage or by more than 125 per cent in the case of high or extra high voltages
Indian Electricity Rules(1956)
Rule 55 Declared frequency of supply to consumer
Except with the written consent of the consumer or with the previous sanction of the State Government a supplier shall not permit the frequency of an alternating current supply to vary from the declared frequency by more than 3 per cent
Indian Electricity Rules(1956)
Rule 56 Sealing of meters and cut-outs(1) A supplier may affix one or more seals to any cut-out and to any meter maximum demand indicator or other apparatus placed upon a consumers premises in accordance with section 26 and no person other than the supplier shall break any such seal
(2) The consumer shall use all reasonable means in his power to ensure that no such seal is broken otherwise than by the supplier
Indian Electricity Rules(1956)
Rule 77 Clearance above ground of the lowest conductor
The conductor of an overhead lineincluding service lineserected across a street shall not be at a height less than
afor low and medium voltage lines 58 meters
bfor high voltage lines 61 meters
The conductor of an overhead lineincluding service lineserected along a street shall not be at a height less than
afor low and medium voltage lines 55 meters
bfor high voltage lines 58 meters
WIRING AND ITS TYPESPoints to be considered for selection of wiringInitial cost It should be economical
Durability It must be able to withstand wear and tear due to weather
Safety from fire It should be free from risk of fire as far as possible
Mechanical Protection It must provide good mechanical protection to the cables
Permanency The wiring must not be affected by the action of weatherfumesdampnesschemicals etc
Appearance It is an architectural point of view
Accessibility It should be easy to extend or repair the wiring
Life The System adopted should have good life
Maintenance Cost It should be low
Types
1Cleat wiring
2Wooden casing and capping wiring
3Lead sheathed wiring
4Conduit pipe wiring
WIRING AND ITS TYPES
WIRING AND ITS TYPESCLEAT WIRING very simple method and cheapest one Single core PVC OR VIR Cables are used in this system cleats are made up of porcelain and have two parts base piece and
cap when wires are passed on to the walls or ceiling they must taken
through conduit pipes This system is not used on damp walls ceilings Its life time is 5 years approximately
ADVANTAGES fault can be easily identify Materials collected after removal of installation can be used for
further wiring Expansion of wiring is possible
DISADVANTAGES less safety poor appearance cant used it for permanent Installation
Cleat wiring diagram
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Objective
bull To know about the following concepts
bull Indian Electricity Rules(1956)
bull Selection of wiring and its types
bull Condition and requirements for all domestic commercial and industrial installation steps
bull Estimation and wiring calculation for domestic building
Indian Electricity Rules(1956)
Indian electricity rules have been framed to ensure safety satisfactory operation of equipment to avoid fire risk
Indian Electricity Rules(1956)
Rule 28 Voltage
Potential difference between the two any two conductors are called as voltage and that can be measured by means of voltmeter
Low voltage Does not exceed 250v under normal condition
Medium voltage Does not exceed 650v under normal condition
High voltage Does not exceed 22kv under normal condition
Extra High voltage voltage exceed 22kv
Indian Electricity Rules(1956)Rule 30 Service Lines and apparatus on consumer premises
1 The supplier shall ensure that all electric supply lines wires fittings and apparatus belonging to him or under his control which are on a consumers premises are in safe condition
2 Service lines placed by the supplier on the premises of a consumer which are underground or which are accessible shall be so insulated and protected by the supplier as to be secured under all ordinary conditions against electrical mechanical chemical or other injury to the insulation
3 The consumer shall as far as circumstances permit take precautions for the safe custody of the equipment on his premises belonging to the supplier
4 The consumer shall also ensure that the installation under his control is maintained in a safe condition
Indian Electricity Rules(1956)Rule 31 Cut-out on consumerrsquos premises
bull The supplier shall provide a suitable cut-out in each conductor of every service line other than an earthed or earthed neutral conductor
bull Where more than one consumer is supplied through a common service line each such consumer shall be provided with an independent cut-out at the point of junction to the common service
bull Every electric supply line other than the earthed or earthed neutral conductor of any system or the earthed external conductor of a concentric cable shall be protected by a suitable cut-out by its owner
Indian Electricity Rules(1956)Rule 46 Periodical inspections and testing of consumerrsquos installation
bull Where an installation is already connected to the supply system of the supplier every such installation shall be periodically inspected and tested at intervals not exceeding five years either by the Inspector [under the control of the Central Government]
bull where the supplier is directed by the Central or the State Government as the case may be to inspect and test the installation he shall report on the condition of the installation to the consumer concerned in a form approved by the Inspector and shall submit a copy of such report to the Inspector
bull The fees for such inspection and test shall be determined by the Central or the State Government as the case may be in the case of each class of consumers and shall be payable by the consumer in advance
bull Customer give surety to the supplier for good maintenance
Indian Electricity Rules(1956)
Rule 47 Testing of consumerrsquos installation
Upon receipt of an application for a new or additional supply of energy and before connecting the supply or reconnecting the same after a period of six months the supplier shall inspect and test the applicants installation
If as a result of such inspection and test the supplier is satisfied that the installation is likely to constitute danger he shall serve on the applicant a notice in writing requiring him to make such modifications as are necessary to render the installation safe
Indian Electricity Rules(1956)
Rule 54 Declared voltage of supply to consumer
Declared voltage at the supply point by more than 5 in the case of low or medium voltage or by more than 125 per cent in the case of high or extra high voltages
Indian Electricity Rules(1956)
Rule 55 Declared frequency of supply to consumer
Except with the written consent of the consumer or with the previous sanction of the State Government a supplier shall not permit the frequency of an alternating current supply to vary from the declared frequency by more than 3 per cent
Indian Electricity Rules(1956)
Rule 56 Sealing of meters and cut-outs(1) A supplier may affix one or more seals to any cut-out and to any meter maximum demand indicator or other apparatus placed upon a consumers premises in accordance with section 26 and no person other than the supplier shall break any such seal
(2) The consumer shall use all reasonable means in his power to ensure that no such seal is broken otherwise than by the supplier
Indian Electricity Rules(1956)
Rule 77 Clearance above ground of the lowest conductor
The conductor of an overhead lineincluding service lineserected across a street shall not be at a height less than
afor low and medium voltage lines 58 meters
bfor high voltage lines 61 meters
The conductor of an overhead lineincluding service lineserected along a street shall not be at a height less than
afor low and medium voltage lines 55 meters
bfor high voltage lines 58 meters
WIRING AND ITS TYPESPoints to be considered for selection of wiringInitial cost It should be economical
Durability It must be able to withstand wear and tear due to weather
Safety from fire It should be free from risk of fire as far as possible
Mechanical Protection It must provide good mechanical protection to the cables
Permanency The wiring must not be affected by the action of weatherfumesdampnesschemicals etc
Appearance It is an architectural point of view
Accessibility It should be easy to extend or repair the wiring
Life The System adopted should have good life
Maintenance Cost It should be low
Types
1Cleat wiring
2Wooden casing and capping wiring
3Lead sheathed wiring
4Conduit pipe wiring
WIRING AND ITS TYPES
WIRING AND ITS TYPESCLEAT WIRING very simple method and cheapest one Single core PVC OR VIR Cables are used in this system cleats are made up of porcelain and have two parts base piece and
cap when wires are passed on to the walls or ceiling they must taken
through conduit pipes This system is not used on damp walls ceilings Its life time is 5 years approximately
ADVANTAGES fault can be easily identify Materials collected after removal of installation can be used for
further wiring Expansion of wiring is possible
DISADVANTAGES less safety poor appearance cant used it for permanent Installation
Cleat wiring diagram
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Indian Electricity Rules(1956)
Indian electricity rules have been framed to ensure safety satisfactory operation of equipment to avoid fire risk
Indian Electricity Rules(1956)
Rule 28 Voltage
Potential difference between the two any two conductors are called as voltage and that can be measured by means of voltmeter
Low voltage Does not exceed 250v under normal condition
Medium voltage Does not exceed 650v under normal condition
High voltage Does not exceed 22kv under normal condition
Extra High voltage voltage exceed 22kv
Indian Electricity Rules(1956)Rule 30 Service Lines and apparatus on consumer premises
1 The supplier shall ensure that all electric supply lines wires fittings and apparatus belonging to him or under his control which are on a consumers premises are in safe condition
2 Service lines placed by the supplier on the premises of a consumer which are underground or which are accessible shall be so insulated and protected by the supplier as to be secured under all ordinary conditions against electrical mechanical chemical or other injury to the insulation
3 The consumer shall as far as circumstances permit take precautions for the safe custody of the equipment on his premises belonging to the supplier
4 The consumer shall also ensure that the installation under his control is maintained in a safe condition
Indian Electricity Rules(1956)Rule 31 Cut-out on consumerrsquos premises
bull The supplier shall provide a suitable cut-out in each conductor of every service line other than an earthed or earthed neutral conductor
bull Where more than one consumer is supplied through a common service line each such consumer shall be provided with an independent cut-out at the point of junction to the common service
bull Every electric supply line other than the earthed or earthed neutral conductor of any system or the earthed external conductor of a concentric cable shall be protected by a suitable cut-out by its owner
Indian Electricity Rules(1956)Rule 46 Periodical inspections and testing of consumerrsquos installation
bull Where an installation is already connected to the supply system of the supplier every such installation shall be periodically inspected and tested at intervals not exceeding five years either by the Inspector [under the control of the Central Government]
bull where the supplier is directed by the Central or the State Government as the case may be to inspect and test the installation he shall report on the condition of the installation to the consumer concerned in a form approved by the Inspector and shall submit a copy of such report to the Inspector
bull The fees for such inspection and test shall be determined by the Central or the State Government as the case may be in the case of each class of consumers and shall be payable by the consumer in advance
bull Customer give surety to the supplier for good maintenance
Indian Electricity Rules(1956)
Rule 47 Testing of consumerrsquos installation
Upon receipt of an application for a new or additional supply of energy and before connecting the supply or reconnecting the same after a period of six months the supplier shall inspect and test the applicants installation
If as a result of such inspection and test the supplier is satisfied that the installation is likely to constitute danger he shall serve on the applicant a notice in writing requiring him to make such modifications as are necessary to render the installation safe
Indian Electricity Rules(1956)
Rule 54 Declared voltage of supply to consumer
Declared voltage at the supply point by more than 5 in the case of low or medium voltage or by more than 125 per cent in the case of high or extra high voltages
Indian Electricity Rules(1956)
Rule 55 Declared frequency of supply to consumer
Except with the written consent of the consumer or with the previous sanction of the State Government a supplier shall not permit the frequency of an alternating current supply to vary from the declared frequency by more than 3 per cent
Indian Electricity Rules(1956)
Rule 56 Sealing of meters and cut-outs(1) A supplier may affix one or more seals to any cut-out and to any meter maximum demand indicator or other apparatus placed upon a consumers premises in accordance with section 26 and no person other than the supplier shall break any such seal
(2) The consumer shall use all reasonable means in his power to ensure that no such seal is broken otherwise than by the supplier
Indian Electricity Rules(1956)
Rule 77 Clearance above ground of the lowest conductor
The conductor of an overhead lineincluding service lineserected across a street shall not be at a height less than
afor low and medium voltage lines 58 meters
bfor high voltage lines 61 meters
The conductor of an overhead lineincluding service lineserected along a street shall not be at a height less than
afor low and medium voltage lines 55 meters
bfor high voltage lines 58 meters
WIRING AND ITS TYPESPoints to be considered for selection of wiringInitial cost It should be economical
Durability It must be able to withstand wear and tear due to weather
Safety from fire It should be free from risk of fire as far as possible
Mechanical Protection It must provide good mechanical protection to the cables
Permanency The wiring must not be affected by the action of weatherfumesdampnesschemicals etc
Appearance It is an architectural point of view
Accessibility It should be easy to extend or repair the wiring
Life The System adopted should have good life
Maintenance Cost It should be low
Types
1Cleat wiring
2Wooden casing and capping wiring
3Lead sheathed wiring
4Conduit pipe wiring
WIRING AND ITS TYPES
WIRING AND ITS TYPESCLEAT WIRING very simple method and cheapest one Single core PVC OR VIR Cables are used in this system cleats are made up of porcelain and have two parts base piece and
cap when wires are passed on to the walls or ceiling they must taken
through conduit pipes This system is not used on damp walls ceilings Its life time is 5 years approximately
ADVANTAGES fault can be easily identify Materials collected after removal of installation can be used for
further wiring Expansion of wiring is possible
DISADVANTAGES less safety poor appearance cant used it for permanent Installation
Cleat wiring diagram
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Indian Electricity Rules(1956)
Rule 28 Voltage
Potential difference between the two any two conductors are called as voltage and that can be measured by means of voltmeter
Low voltage Does not exceed 250v under normal condition
Medium voltage Does not exceed 650v under normal condition
High voltage Does not exceed 22kv under normal condition
Extra High voltage voltage exceed 22kv
Indian Electricity Rules(1956)Rule 30 Service Lines and apparatus on consumer premises
1 The supplier shall ensure that all electric supply lines wires fittings and apparatus belonging to him or under his control which are on a consumers premises are in safe condition
2 Service lines placed by the supplier on the premises of a consumer which are underground or which are accessible shall be so insulated and protected by the supplier as to be secured under all ordinary conditions against electrical mechanical chemical or other injury to the insulation
3 The consumer shall as far as circumstances permit take precautions for the safe custody of the equipment on his premises belonging to the supplier
4 The consumer shall also ensure that the installation under his control is maintained in a safe condition
Indian Electricity Rules(1956)Rule 31 Cut-out on consumerrsquos premises
bull The supplier shall provide a suitable cut-out in each conductor of every service line other than an earthed or earthed neutral conductor
bull Where more than one consumer is supplied through a common service line each such consumer shall be provided with an independent cut-out at the point of junction to the common service
bull Every electric supply line other than the earthed or earthed neutral conductor of any system or the earthed external conductor of a concentric cable shall be protected by a suitable cut-out by its owner
Indian Electricity Rules(1956)Rule 46 Periodical inspections and testing of consumerrsquos installation
bull Where an installation is already connected to the supply system of the supplier every such installation shall be periodically inspected and tested at intervals not exceeding five years either by the Inspector [under the control of the Central Government]
bull where the supplier is directed by the Central or the State Government as the case may be to inspect and test the installation he shall report on the condition of the installation to the consumer concerned in a form approved by the Inspector and shall submit a copy of such report to the Inspector
bull The fees for such inspection and test shall be determined by the Central or the State Government as the case may be in the case of each class of consumers and shall be payable by the consumer in advance
bull Customer give surety to the supplier for good maintenance
Indian Electricity Rules(1956)
Rule 47 Testing of consumerrsquos installation
Upon receipt of an application for a new or additional supply of energy and before connecting the supply or reconnecting the same after a period of six months the supplier shall inspect and test the applicants installation
If as a result of such inspection and test the supplier is satisfied that the installation is likely to constitute danger he shall serve on the applicant a notice in writing requiring him to make such modifications as are necessary to render the installation safe
Indian Electricity Rules(1956)
Rule 54 Declared voltage of supply to consumer
Declared voltage at the supply point by more than 5 in the case of low or medium voltage or by more than 125 per cent in the case of high or extra high voltages
Indian Electricity Rules(1956)
Rule 55 Declared frequency of supply to consumer
Except with the written consent of the consumer or with the previous sanction of the State Government a supplier shall not permit the frequency of an alternating current supply to vary from the declared frequency by more than 3 per cent
Indian Electricity Rules(1956)
Rule 56 Sealing of meters and cut-outs(1) A supplier may affix one or more seals to any cut-out and to any meter maximum demand indicator or other apparatus placed upon a consumers premises in accordance with section 26 and no person other than the supplier shall break any such seal
(2) The consumer shall use all reasonable means in his power to ensure that no such seal is broken otherwise than by the supplier
Indian Electricity Rules(1956)
Rule 77 Clearance above ground of the lowest conductor
The conductor of an overhead lineincluding service lineserected across a street shall not be at a height less than
afor low and medium voltage lines 58 meters
bfor high voltage lines 61 meters
The conductor of an overhead lineincluding service lineserected along a street shall not be at a height less than
afor low and medium voltage lines 55 meters
bfor high voltage lines 58 meters
WIRING AND ITS TYPESPoints to be considered for selection of wiringInitial cost It should be economical
Durability It must be able to withstand wear and tear due to weather
Safety from fire It should be free from risk of fire as far as possible
Mechanical Protection It must provide good mechanical protection to the cables
Permanency The wiring must not be affected by the action of weatherfumesdampnesschemicals etc
Appearance It is an architectural point of view
Accessibility It should be easy to extend or repair the wiring
Life The System adopted should have good life
Maintenance Cost It should be low
Types
1Cleat wiring
2Wooden casing and capping wiring
3Lead sheathed wiring
4Conduit pipe wiring
WIRING AND ITS TYPES
WIRING AND ITS TYPESCLEAT WIRING very simple method and cheapest one Single core PVC OR VIR Cables are used in this system cleats are made up of porcelain and have two parts base piece and
cap when wires are passed on to the walls or ceiling they must taken
through conduit pipes This system is not used on damp walls ceilings Its life time is 5 years approximately
ADVANTAGES fault can be easily identify Materials collected after removal of installation can be used for
further wiring Expansion of wiring is possible
DISADVANTAGES less safety poor appearance cant used it for permanent Installation
Cleat wiring diagram
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Indian Electricity Rules(1956)Rule 30 Service Lines and apparatus on consumer premises
1 The supplier shall ensure that all electric supply lines wires fittings and apparatus belonging to him or under his control which are on a consumers premises are in safe condition
2 Service lines placed by the supplier on the premises of a consumer which are underground or which are accessible shall be so insulated and protected by the supplier as to be secured under all ordinary conditions against electrical mechanical chemical or other injury to the insulation
3 The consumer shall as far as circumstances permit take precautions for the safe custody of the equipment on his premises belonging to the supplier
4 The consumer shall also ensure that the installation under his control is maintained in a safe condition
Indian Electricity Rules(1956)Rule 31 Cut-out on consumerrsquos premises
bull The supplier shall provide a suitable cut-out in each conductor of every service line other than an earthed or earthed neutral conductor
bull Where more than one consumer is supplied through a common service line each such consumer shall be provided with an independent cut-out at the point of junction to the common service
bull Every electric supply line other than the earthed or earthed neutral conductor of any system or the earthed external conductor of a concentric cable shall be protected by a suitable cut-out by its owner
Indian Electricity Rules(1956)Rule 46 Periodical inspections and testing of consumerrsquos installation
bull Where an installation is already connected to the supply system of the supplier every such installation shall be periodically inspected and tested at intervals not exceeding five years either by the Inspector [under the control of the Central Government]
bull where the supplier is directed by the Central or the State Government as the case may be to inspect and test the installation he shall report on the condition of the installation to the consumer concerned in a form approved by the Inspector and shall submit a copy of such report to the Inspector
bull The fees for such inspection and test shall be determined by the Central or the State Government as the case may be in the case of each class of consumers and shall be payable by the consumer in advance
bull Customer give surety to the supplier for good maintenance
Indian Electricity Rules(1956)
Rule 47 Testing of consumerrsquos installation
Upon receipt of an application for a new or additional supply of energy and before connecting the supply or reconnecting the same after a period of six months the supplier shall inspect and test the applicants installation
If as a result of such inspection and test the supplier is satisfied that the installation is likely to constitute danger he shall serve on the applicant a notice in writing requiring him to make such modifications as are necessary to render the installation safe
Indian Electricity Rules(1956)
Rule 54 Declared voltage of supply to consumer
Declared voltage at the supply point by more than 5 in the case of low or medium voltage or by more than 125 per cent in the case of high or extra high voltages
Indian Electricity Rules(1956)
Rule 55 Declared frequency of supply to consumer
Except with the written consent of the consumer or with the previous sanction of the State Government a supplier shall not permit the frequency of an alternating current supply to vary from the declared frequency by more than 3 per cent
Indian Electricity Rules(1956)
Rule 56 Sealing of meters and cut-outs(1) A supplier may affix one or more seals to any cut-out and to any meter maximum demand indicator or other apparatus placed upon a consumers premises in accordance with section 26 and no person other than the supplier shall break any such seal
(2) The consumer shall use all reasonable means in his power to ensure that no such seal is broken otherwise than by the supplier
Indian Electricity Rules(1956)
Rule 77 Clearance above ground of the lowest conductor
The conductor of an overhead lineincluding service lineserected across a street shall not be at a height less than
afor low and medium voltage lines 58 meters
bfor high voltage lines 61 meters
The conductor of an overhead lineincluding service lineserected along a street shall not be at a height less than
afor low and medium voltage lines 55 meters
bfor high voltage lines 58 meters
WIRING AND ITS TYPESPoints to be considered for selection of wiringInitial cost It should be economical
Durability It must be able to withstand wear and tear due to weather
Safety from fire It should be free from risk of fire as far as possible
Mechanical Protection It must provide good mechanical protection to the cables
Permanency The wiring must not be affected by the action of weatherfumesdampnesschemicals etc
Appearance It is an architectural point of view
Accessibility It should be easy to extend or repair the wiring
Life The System adopted should have good life
Maintenance Cost It should be low
Types
1Cleat wiring
2Wooden casing and capping wiring
3Lead sheathed wiring
4Conduit pipe wiring
WIRING AND ITS TYPES
WIRING AND ITS TYPESCLEAT WIRING very simple method and cheapest one Single core PVC OR VIR Cables are used in this system cleats are made up of porcelain and have two parts base piece and
cap when wires are passed on to the walls or ceiling they must taken
through conduit pipes This system is not used on damp walls ceilings Its life time is 5 years approximately
ADVANTAGES fault can be easily identify Materials collected after removal of installation can be used for
further wiring Expansion of wiring is possible
DISADVANTAGES less safety poor appearance cant used it for permanent Installation
Cleat wiring diagram
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Indian Electricity Rules(1956)Rule 31 Cut-out on consumerrsquos premises
bull The supplier shall provide a suitable cut-out in each conductor of every service line other than an earthed or earthed neutral conductor
bull Where more than one consumer is supplied through a common service line each such consumer shall be provided with an independent cut-out at the point of junction to the common service
bull Every electric supply line other than the earthed or earthed neutral conductor of any system or the earthed external conductor of a concentric cable shall be protected by a suitable cut-out by its owner
Indian Electricity Rules(1956)Rule 46 Periodical inspections and testing of consumerrsquos installation
bull Where an installation is already connected to the supply system of the supplier every such installation shall be periodically inspected and tested at intervals not exceeding five years either by the Inspector [under the control of the Central Government]
bull where the supplier is directed by the Central or the State Government as the case may be to inspect and test the installation he shall report on the condition of the installation to the consumer concerned in a form approved by the Inspector and shall submit a copy of such report to the Inspector
bull The fees for such inspection and test shall be determined by the Central or the State Government as the case may be in the case of each class of consumers and shall be payable by the consumer in advance
bull Customer give surety to the supplier for good maintenance
Indian Electricity Rules(1956)
Rule 47 Testing of consumerrsquos installation
Upon receipt of an application for a new or additional supply of energy and before connecting the supply or reconnecting the same after a period of six months the supplier shall inspect and test the applicants installation
If as a result of such inspection and test the supplier is satisfied that the installation is likely to constitute danger he shall serve on the applicant a notice in writing requiring him to make such modifications as are necessary to render the installation safe
Indian Electricity Rules(1956)
Rule 54 Declared voltage of supply to consumer
Declared voltage at the supply point by more than 5 in the case of low or medium voltage or by more than 125 per cent in the case of high or extra high voltages
Indian Electricity Rules(1956)
Rule 55 Declared frequency of supply to consumer
Except with the written consent of the consumer or with the previous sanction of the State Government a supplier shall not permit the frequency of an alternating current supply to vary from the declared frequency by more than 3 per cent
Indian Electricity Rules(1956)
Rule 56 Sealing of meters and cut-outs(1) A supplier may affix one or more seals to any cut-out and to any meter maximum demand indicator or other apparatus placed upon a consumers premises in accordance with section 26 and no person other than the supplier shall break any such seal
(2) The consumer shall use all reasonable means in his power to ensure that no such seal is broken otherwise than by the supplier
Indian Electricity Rules(1956)
Rule 77 Clearance above ground of the lowest conductor
The conductor of an overhead lineincluding service lineserected across a street shall not be at a height less than
afor low and medium voltage lines 58 meters
bfor high voltage lines 61 meters
The conductor of an overhead lineincluding service lineserected along a street shall not be at a height less than
afor low and medium voltage lines 55 meters
bfor high voltage lines 58 meters
WIRING AND ITS TYPESPoints to be considered for selection of wiringInitial cost It should be economical
Durability It must be able to withstand wear and tear due to weather
Safety from fire It should be free from risk of fire as far as possible
Mechanical Protection It must provide good mechanical protection to the cables
Permanency The wiring must not be affected by the action of weatherfumesdampnesschemicals etc
Appearance It is an architectural point of view
Accessibility It should be easy to extend or repair the wiring
Life The System adopted should have good life
Maintenance Cost It should be low
Types
1Cleat wiring
2Wooden casing and capping wiring
3Lead sheathed wiring
4Conduit pipe wiring
WIRING AND ITS TYPES
WIRING AND ITS TYPESCLEAT WIRING very simple method and cheapest one Single core PVC OR VIR Cables are used in this system cleats are made up of porcelain and have two parts base piece and
cap when wires are passed on to the walls or ceiling they must taken
through conduit pipes This system is not used on damp walls ceilings Its life time is 5 years approximately
ADVANTAGES fault can be easily identify Materials collected after removal of installation can be used for
further wiring Expansion of wiring is possible
DISADVANTAGES less safety poor appearance cant used it for permanent Installation
Cleat wiring diagram
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Indian Electricity Rules(1956)Rule 46 Periodical inspections and testing of consumerrsquos installation
bull Where an installation is already connected to the supply system of the supplier every such installation shall be periodically inspected and tested at intervals not exceeding five years either by the Inspector [under the control of the Central Government]
bull where the supplier is directed by the Central or the State Government as the case may be to inspect and test the installation he shall report on the condition of the installation to the consumer concerned in a form approved by the Inspector and shall submit a copy of such report to the Inspector
bull The fees for such inspection and test shall be determined by the Central or the State Government as the case may be in the case of each class of consumers and shall be payable by the consumer in advance
bull Customer give surety to the supplier for good maintenance
Indian Electricity Rules(1956)
Rule 47 Testing of consumerrsquos installation
Upon receipt of an application for a new or additional supply of energy and before connecting the supply or reconnecting the same after a period of six months the supplier shall inspect and test the applicants installation
If as a result of such inspection and test the supplier is satisfied that the installation is likely to constitute danger he shall serve on the applicant a notice in writing requiring him to make such modifications as are necessary to render the installation safe
Indian Electricity Rules(1956)
Rule 54 Declared voltage of supply to consumer
Declared voltage at the supply point by more than 5 in the case of low or medium voltage or by more than 125 per cent in the case of high or extra high voltages
Indian Electricity Rules(1956)
Rule 55 Declared frequency of supply to consumer
Except with the written consent of the consumer or with the previous sanction of the State Government a supplier shall not permit the frequency of an alternating current supply to vary from the declared frequency by more than 3 per cent
Indian Electricity Rules(1956)
Rule 56 Sealing of meters and cut-outs(1) A supplier may affix one or more seals to any cut-out and to any meter maximum demand indicator or other apparatus placed upon a consumers premises in accordance with section 26 and no person other than the supplier shall break any such seal
(2) The consumer shall use all reasonable means in his power to ensure that no such seal is broken otherwise than by the supplier
Indian Electricity Rules(1956)
Rule 77 Clearance above ground of the lowest conductor
The conductor of an overhead lineincluding service lineserected across a street shall not be at a height less than
afor low and medium voltage lines 58 meters
bfor high voltage lines 61 meters
The conductor of an overhead lineincluding service lineserected along a street shall not be at a height less than
afor low and medium voltage lines 55 meters
bfor high voltage lines 58 meters
WIRING AND ITS TYPESPoints to be considered for selection of wiringInitial cost It should be economical
Durability It must be able to withstand wear and tear due to weather
Safety from fire It should be free from risk of fire as far as possible
Mechanical Protection It must provide good mechanical protection to the cables
Permanency The wiring must not be affected by the action of weatherfumesdampnesschemicals etc
Appearance It is an architectural point of view
Accessibility It should be easy to extend or repair the wiring
Life The System adopted should have good life
Maintenance Cost It should be low
Types
1Cleat wiring
2Wooden casing and capping wiring
3Lead sheathed wiring
4Conduit pipe wiring
WIRING AND ITS TYPES
WIRING AND ITS TYPESCLEAT WIRING very simple method and cheapest one Single core PVC OR VIR Cables are used in this system cleats are made up of porcelain and have two parts base piece and
cap when wires are passed on to the walls or ceiling they must taken
through conduit pipes This system is not used on damp walls ceilings Its life time is 5 years approximately
ADVANTAGES fault can be easily identify Materials collected after removal of installation can be used for
further wiring Expansion of wiring is possible
DISADVANTAGES less safety poor appearance cant used it for permanent Installation
Cleat wiring diagram
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Indian Electricity Rules(1956)
Rule 47 Testing of consumerrsquos installation
Upon receipt of an application for a new or additional supply of energy and before connecting the supply or reconnecting the same after a period of six months the supplier shall inspect and test the applicants installation
If as a result of such inspection and test the supplier is satisfied that the installation is likely to constitute danger he shall serve on the applicant a notice in writing requiring him to make such modifications as are necessary to render the installation safe
Indian Electricity Rules(1956)
Rule 54 Declared voltage of supply to consumer
Declared voltage at the supply point by more than 5 in the case of low or medium voltage or by more than 125 per cent in the case of high or extra high voltages
Indian Electricity Rules(1956)
Rule 55 Declared frequency of supply to consumer
Except with the written consent of the consumer or with the previous sanction of the State Government a supplier shall not permit the frequency of an alternating current supply to vary from the declared frequency by more than 3 per cent
Indian Electricity Rules(1956)
Rule 56 Sealing of meters and cut-outs(1) A supplier may affix one or more seals to any cut-out and to any meter maximum demand indicator or other apparatus placed upon a consumers premises in accordance with section 26 and no person other than the supplier shall break any such seal
(2) The consumer shall use all reasonable means in his power to ensure that no such seal is broken otherwise than by the supplier
Indian Electricity Rules(1956)
Rule 77 Clearance above ground of the lowest conductor
The conductor of an overhead lineincluding service lineserected across a street shall not be at a height less than
afor low and medium voltage lines 58 meters
bfor high voltage lines 61 meters
The conductor of an overhead lineincluding service lineserected along a street shall not be at a height less than
afor low and medium voltage lines 55 meters
bfor high voltage lines 58 meters
WIRING AND ITS TYPESPoints to be considered for selection of wiringInitial cost It should be economical
Durability It must be able to withstand wear and tear due to weather
Safety from fire It should be free from risk of fire as far as possible
Mechanical Protection It must provide good mechanical protection to the cables
Permanency The wiring must not be affected by the action of weatherfumesdampnesschemicals etc
Appearance It is an architectural point of view
Accessibility It should be easy to extend or repair the wiring
Life The System adopted should have good life
Maintenance Cost It should be low
Types
1Cleat wiring
2Wooden casing and capping wiring
3Lead sheathed wiring
4Conduit pipe wiring
WIRING AND ITS TYPES
WIRING AND ITS TYPESCLEAT WIRING very simple method and cheapest one Single core PVC OR VIR Cables are used in this system cleats are made up of porcelain and have two parts base piece and
cap when wires are passed on to the walls or ceiling they must taken
through conduit pipes This system is not used on damp walls ceilings Its life time is 5 years approximately
ADVANTAGES fault can be easily identify Materials collected after removal of installation can be used for
further wiring Expansion of wiring is possible
DISADVANTAGES less safety poor appearance cant used it for permanent Installation
Cleat wiring diagram
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Indian Electricity Rules(1956)
Rule 54 Declared voltage of supply to consumer
Declared voltage at the supply point by more than 5 in the case of low or medium voltage or by more than 125 per cent in the case of high or extra high voltages
Indian Electricity Rules(1956)
Rule 55 Declared frequency of supply to consumer
Except with the written consent of the consumer or with the previous sanction of the State Government a supplier shall not permit the frequency of an alternating current supply to vary from the declared frequency by more than 3 per cent
Indian Electricity Rules(1956)
Rule 56 Sealing of meters and cut-outs(1) A supplier may affix one or more seals to any cut-out and to any meter maximum demand indicator or other apparatus placed upon a consumers premises in accordance with section 26 and no person other than the supplier shall break any such seal
(2) The consumer shall use all reasonable means in his power to ensure that no such seal is broken otherwise than by the supplier
Indian Electricity Rules(1956)
Rule 77 Clearance above ground of the lowest conductor
The conductor of an overhead lineincluding service lineserected across a street shall not be at a height less than
afor low and medium voltage lines 58 meters
bfor high voltage lines 61 meters
The conductor of an overhead lineincluding service lineserected along a street shall not be at a height less than
afor low and medium voltage lines 55 meters
bfor high voltage lines 58 meters
WIRING AND ITS TYPESPoints to be considered for selection of wiringInitial cost It should be economical
Durability It must be able to withstand wear and tear due to weather
Safety from fire It should be free from risk of fire as far as possible
Mechanical Protection It must provide good mechanical protection to the cables
Permanency The wiring must not be affected by the action of weatherfumesdampnesschemicals etc
Appearance It is an architectural point of view
Accessibility It should be easy to extend or repair the wiring
Life The System adopted should have good life
Maintenance Cost It should be low
Types
1Cleat wiring
2Wooden casing and capping wiring
3Lead sheathed wiring
4Conduit pipe wiring
WIRING AND ITS TYPES
WIRING AND ITS TYPESCLEAT WIRING very simple method and cheapest one Single core PVC OR VIR Cables are used in this system cleats are made up of porcelain and have two parts base piece and
cap when wires are passed on to the walls or ceiling they must taken
through conduit pipes This system is not used on damp walls ceilings Its life time is 5 years approximately
ADVANTAGES fault can be easily identify Materials collected after removal of installation can be used for
further wiring Expansion of wiring is possible
DISADVANTAGES less safety poor appearance cant used it for permanent Installation
Cleat wiring diagram
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Indian Electricity Rules(1956)
Rule 55 Declared frequency of supply to consumer
Except with the written consent of the consumer or with the previous sanction of the State Government a supplier shall not permit the frequency of an alternating current supply to vary from the declared frequency by more than 3 per cent
Indian Electricity Rules(1956)
Rule 56 Sealing of meters and cut-outs(1) A supplier may affix one or more seals to any cut-out and to any meter maximum demand indicator or other apparatus placed upon a consumers premises in accordance with section 26 and no person other than the supplier shall break any such seal
(2) The consumer shall use all reasonable means in his power to ensure that no such seal is broken otherwise than by the supplier
Indian Electricity Rules(1956)
Rule 77 Clearance above ground of the lowest conductor
The conductor of an overhead lineincluding service lineserected across a street shall not be at a height less than
afor low and medium voltage lines 58 meters
bfor high voltage lines 61 meters
The conductor of an overhead lineincluding service lineserected along a street shall not be at a height less than
afor low and medium voltage lines 55 meters
bfor high voltage lines 58 meters
WIRING AND ITS TYPESPoints to be considered for selection of wiringInitial cost It should be economical
Durability It must be able to withstand wear and tear due to weather
Safety from fire It should be free from risk of fire as far as possible
Mechanical Protection It must provide good mechanical protection to the cables
Permanency The wiring must not be affected by the action of weatherfumesdampnesschemicals etc
Appearance It is an architectural point of view
Accessibility It should be easy to extend or repair the wiring
Life The System adopted should have good life
Maintenance Cost It should be low
Types
1Cleat wiring
2Wooden casing and capping wiring
3Lead sheathed wiring
4Conduit pipe wiring
WIRING AND ITS TYPES
WIRING AND ITS TYPESCLEAT WIRING very simple method and cheapest one Single core PVC OR VIR Cables are used in this system cleats are made up of porcelain and have two parts base piece and
cap when wires are passed on to the walls or ceiling they must taken
through conduit pipes This system is not used on damp walls ceilings Its life time is 5 years approximately
ADVANTAGES fault can be easily identify Materials collected after removal of installation can be used for
further wiring Expansion of wiring is possible
DISADVANTAGES less safety poor appearance cant used it for permanent Installation
Cleat wiring diagram
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Indian Electricity Rules(1956)
Rule 56 Sealing of meters and cut-outs(1) A supplier may affix one or more seals to any cut-out and to any meter maximum demand indicator or other apparatus placed upon a consumers premises in accordance with section 26 and no person other than the supplier shall break any such seal
(2) The consumer shall use all reasonable means in his power to ensure that no such seal is broken otherwise than by the supplier
Indian Electricity Rules(1956)
Rule 77 Clearance above ground of the lowest conductor
The conductor of an overhead lineincluding service lineserected across a street shall not be at a height less than
afor low and medium voltage lines 58 meters
bfor high voltage lines 61 meters
The conductor of an overhead lineincluding service lineserected along a street shall not be at a height less than
afor low and medium voltage lines 55 meters
bfor high voltage lines 58 meters
WIRING AND ITS TYPESPoints to be considered for selection of wiringInitial cost It should be economical
Durability It must be able to withstand wear and tear due to weather
Safety from fire It should be free from risk of fire as far as possible
Mechanical Protection It must provide good mechanical protection to the cables
Permanency The wiring must not be affected by the action of weatherfumesdampnesschemicals etc
Appearance It is an architectural point of view
Accessibility It should be easy to extend or repair the wiring
Life The System adopted should have good life
Maintenance Cost It should be low
Types
1Cleat wiring
2Wooden casing and capping wiring
3Lead sheathed wiring
4Conduit pipe wiring
WIRING AND ITS TYPES
WIRING AND ITS TYPESCLEAT WIRING very simple method and cheapest one Single core PVC OR VIR Cables are used in this system cleats are made up of porcelain and have two parts base piece and
cap when wires are passed on to the walls or ceiling they must taken
through conduit pipes This system is not used on damp walls ceilings Its life time is 5 years approximately
ADVANTAGES fault can be easily identify Materials collected after removal of installation can be used for
further wiring Expansion of wiring is possible
DISADVANTAGES less safety poor appearance cant used it for permanent Installation
Cleat wiring diagram
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Indian Electricity Rules(1956)
Rule 77 Clearance above ground of the lowest conductor
The conductor of an overhead lineincluding service lineserected across a street shall not be at a height less than
afor low and medium voltage lines 58 meters
bfor high voltage lines 61 meters
The conductor of an overhead lineincluding service lineserected along a street shall not be at a height less than
afor low and medium voltage lines 55 meters
bfor high voltage lines 58 meters
WIRING AND ITS TYPESPoints to be considered for selection of wiringInitial cost It should be economical
Durability It must be able to withstand wear and tear due to weather
Safety from fire It should be free from risk of fire as far as possible
Mechanical Protection It must provide good mechanical protection to the cables
Permanency The wiring must not be affected by the action of weatherfumesdampnesschemicals etc
Appearance It is an architectural point of view
Accessibility It should be easy to extend or repair the wiring
Life The System adopted should have good life
Maintenance Cost It should be low
Types
1Cleat wiring
2Wooden casing and capping wiring
3Lead sheathed wiring
4Conduit pipe wiring
WIRING AND ITS TYPES
WIRING AND ITS TYPESCLEAT WIRING very simple method and cheapest one Single core PVC OR VIR Cables are used in this system cleats are made up of porcelain and have two parts base piece and
cap when wires are passed on to the walls or ceiling they must taken
through conduit pipes This system is not used on damp walls ceilings Its life time is 5 years approximately
ADVANTAGES fault can be easily identify Materials collected after removal of installation can be used for
further wiring Expansion of wiring is possible
DISADVANTAGES less safety poor appearance cant used it for permanent Installation
Cleat wiring diagram
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
WIRING AND ITS TYPESPoints to be considered for selection of wiringInitial cost It should be economical
Durability It must be able to withstand wear and tear due to weather
Safety from fire It should be free from risk of fire as far as possible
Mechanical Protection It must provide good mechanical protection to the cables
Permanency The wiring must not be affected by the action of weatherfumesdampnesschemicals etc
Appearance It is an architectural point of view
Accessibility It should be easy to extend or repair the wiring
Life The System adopted should have good life
Maintenance Cost It should be low
Types
1Cleat wiring
2Wooden casing and capping wiring
3Lead sheathed wiring
4Conduit pipe wiring
WIRING AND ITS TYPES
WIRING AND ITS TYPESCLEAT WIRING very simple method and cheapest one Single core PVC OR VIR Cables are used in this system cleats are made up of porcelain and have two parts base piece and
cap when wires are passed on to the walls or ceiling they must taken
through conduit pipes This system is not used on damp walls ceilings Its life time is 5 years approximately
ADVANTAGES fault can be easily identify Materials collected after removal of installation can be used for
further wiring Expansion of wiring is possible
DISADVANTAGES less safety poor appearance cant used it for permanent Installation
Cleat wiring diagram
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Types
1Cleat wiring
2Wooden casing and capping wiring
3Lead sheathed wiring
4Conduit pipe wiring
WIRING AND ITS TYPES
WIRING AND ITS TYPESCLEAT WIRING very simple method and cheapest one Single core PVC OR VIR Cables are used in this system cleats are made up of porcelain and have two parts base piece and
cap when wires are passed on to the walls or ceiling they must taken
through conduit pipes This system is not used on damp walls ceilings Its life time is 5 years approximately
ADVANTAGES fault can be easily identify Materials collected after removal of installation can be used for
further wiring Expansion of wiring is possible
DISADVANTAGES less safety poor appearance cant used it for permanent Installation
Cleat wiring diagram
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
WIRING AND ITS TYPESCLEAT WIRING very simple method and cheapest one Single core PVC OR VIR Cables are used in this system cleats are made up of porcelain and have two parts base piece and
cap when wires are passed on to the walls or ceiling they must taken
through conduit pipes This system is not used on damp walls ceilings Its life time is 5 years approximately
ADVANTAGES fault can be easily identify Materials collected after removal of installation can be used for
further wiring Expansion of wiring is possible
DISADVANTAGES less safety poor appearance cant used it for permanent Installation
Cleat wiring diagram
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Cleat wiring diagram
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Wooden Casing and Capping WiringKey points suitable for low voltage domestic installation and here we are using VIR or PVC
Wires are used It consist of V shaped grooves usually two in number Wires are laid in grooves and the casing is covered by rectangular strip of same
width that is called ldquoCAPPINGrdquo and that was fitted by means of screw Capping and casing are made up of ldquoTEAK WOODrdquo
Advantages long life if properly done and varnished Good and neat appearance
Disadvantages Wood is inflammable and there is a risk of fire Not suitable for wet arearsquos need to varnish for maintaining the safe operation
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Wooden Casing and Capping Wiring
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Lead Sheathed Wiring Key points This types of wiring used for low voltage installation
It is not suitable for rdquo Acids or Alkalies ldquo are present
when wires are passed on to the walls or ceiling they must taken through conduit pipes
This system requires good earthling
Sharp pending of the cables should be avoided
Advantages Protection from fire is good and mechanical protection is high
Disadvantages
Not suited where fumes of acid are present
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Lead Sheathed Wiring
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
CTS or TRS wiring(Cap tyre sheathed wiring or Tough Rubber sheathed wiring)
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Conduit WiringTypes
Surface conduit wiring
Concealed conduit wiring
SURFACE CONDUIT
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Conduit Wiring(concealed conduit wiring)
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Conduit Wiring
Advantages Good protection against fire
Provides protection against moisture in the atmosphere
damages of cables can be replace easily
good appearance
Life is very long
Disadvantages Cost is high
If there is any burns inside conduit causes insulation of cables to be damaged
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
WIRING FOR DOMESTIC HOME
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
Condition for Domestic installationbull Height of switch board must be 13m to 175m from floor
level
bull Height of distribution board must be 15m to 175m from floor level
bull The bottom of ceiling fan should have minimum clearance of 275m
bull All lamp should be fitted with a minimum clearance of 275m above floor level
bull For load above 4kw3 phase supply must arrange
bull load should be equally shared
bull In any building light wiring and power wiring should be kept separate
bull Power per circuit may take it as 800w or 1000w(10points)
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
bull Reference
bull httpwwwustudyineeeeest
bull httpaceeeorgfilesproceedings2012datapapers0193-000376pdf
bull Electrical Wiring Estimating and Costing MKS Units for Technical Schools Industrial Institutes NCC State Diplomas Electrician and Supervisory Courses by S L Uppal J M Laroia
THANK YOU
THANK YOU
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