Tech Specs Control Cables

8/9/2019 Tech Specs Control Cables

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TECHNICAL SPECIFICATION FOR 2.5sqmm ARMOURED PVC INSULATED

AND SHEATHED 1.1kV GRADE COPPER CONDUCTOR (ISI MARKED) WITH

IMPROVED FIRE PERFORMANCE CONTROL CALE AGAINST

NIT NO! EPC"II#2$#2%1&"15

GENERAL

1. SCOPE!

This specification covers requirements and tests for 2.5sqmm Control Cable

1.1kV grade, armoured, multi-core VC insulated and sheathed cables !ith

improved fire performance, Categor" C2 #$%-&'(, $lame %etardant cables !ith

reduced halogen evolution and smoke) conforming to *'+ 155#art-*)+1 !ith

latest amendments and *'* marked as per the details given belo!. The cables

covered in this standard are suitable for use !here the combination of ambient

temperature and temperature rise due to load results in conductor temperature not

e/ceeding 5 degC under normal continuous operation and 10 degC under 'hort

Circuit condition.

2. STANDARDS AND REGULATIONS!

The materials shall conform in all respects to the relevant *ndian*nternational

'tandards, !ith latest amendments thereof unless other!ise specified herein.

'ome of them are listed belo! as+

i. *'-155 #art-*) 3 VC insulated heav" dut" Cables.

ii. *'-14-Conductors for VC insulated Cables.

iii. *'-401 #art-**) - %ecommended current ratings for Cables.

iv. *'-541-VC insulated and sheath of lectric Cable.

v. 6ther relevant standards for screening.

'.

CLIMATIC AND ISOCERAUNIC CONDITIONS!

'.1 The climatic conditions at site under !hich the material shall operate 'atisfactor"

are as follo!s7

a) 8a/imum ambient air temperature #9C)+ 5

b) 8inimum ambient air temperature #9C)+ -2

c) 8a/imum dail" average ambient air temperature #9C)+

d) 8a/imum :earl" average ambient temperature #9C)+ 22

e) (eight above 'ea &evel #m)+ 2 m

'.2 The material offered shall be suitable for continuous operation at the full rated

capacit" under the above conditions.


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TECHNICAL REUIREMENTS

&. COPPER CONDUCTOR

The conductor shall be made from high conductivit" copper rods compl"ing !ith

*'+ 014-10 amended up to date. The conductor shall consist of plain annealed

high conductivit" copper of circular cross section. The conductor shall be as per

*'+ 14-1 amended up to date. The fle/ibilit" of solid conductor shall be of

Class-1.

5. INSULATION

The insulation shall be of VC compound applied b" e/trusion conforming to the

requirement of T"pe-C as per *' 541- 1 amended up to date. The nominal

thickness of the insulation shall be . mm and the tolerance on the thickness of

insulation shall be as per *'+ 155 #art-1)+ 1 amended up to date. The

insulation shall be heat resistant for ma/imum rated conductor temperature 5

deg C intended for cables !ith rated voltages upto ; including 11 volts.

. INNER SHEATH AND FILLERThe inner sheath and filler shall conform to *'+ 155#art-*)+ 1 amended up to

date and shall be of Thermoplastic material. The thermoplastic material used shall

not be harder than VC used for insulation and outer sheath. The material shall be

chosen to be compatible !ith temperature ratings of the cable and shall have no

deleterious effect on an" other component of the cable. The thickness of the inner

sheath shall be as per *'+ 155#art-1)+ 1 amended up to date. The laid up

cores shall be provided !ith an inner sheath applied either b" e/trusion or b"

!rapping. *t shall be ensured that the shape is as circular as possible.

*. ARMOURING

The ed steel strips.The material for armouring shall be selected as per the calculated diameter belo!

armouring. ?here the calculated diameter belo! armouring does not e/ceed

14mm the armour shall consist of galvani>ed round steel !ires. ?here the

calculated diameter belo! armouring is greater than 14 mm, the armour shall

consist of either galvani>ed round steel !ires or galvani>ed formed steel !ires

#strips) and shall compl" !ith the requirements of *'+155#art-1)+1 and

*'+ 4@5-1 amended up to date.


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D+m,-s+-s / A0m0"R- W+0,s 3- S40+s

(A66 +m,-s+-s +- mm)

C367634, D+3m,4,0 -,0

A0m0

(R,/ IS! 1%&2(P304"1)! 18$'

Nm+-36

T9+7k-,ss / S4,,6S40+

Nm+-36

D+3m,4,0 /R- W+0,O:,0

U 4 3-

+-76+-;

$or all diameters in e/cess of 14

or. -

- 14 - 1.

14 25 . 1.0

25 . 2.

$. OUTER SHEATHThe 6uter sheath shall be of VC compound conforming to the requirements of

T"pe 'T-2 as per *'+ 541-1 !ith latest amendments. The outer sheath shall

be applied b" e/trusion over the armouring. The outer sheath shall be so applied

that it fits closel" over armouring. *t should be possible to remove it !ithout

damage to the inner sheath. The colour of the outer sheath shall be black. The

thickness of the outer sheath shall not be less than the minimum value specified as

per table belo!+

T9+7k-,ss / O4,0 S9,349

(A66 +m,-s+-s +- mm)

C367634, D+3m,4,0 -,0 49, O4,0

S9,349

(R,/ IS! 1%&2(P304"1)! 18$'M+-+mm T9+7k-,ss /

O4,0 S9,349

O:,0 U 4 3- +-76+-;

- 15 1.2

15 25 1.

25 45 1.50


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1%. CORE IDENTIFICATION

Cores shall be identified b" different colouring of VC insulation b" adopting the

follo!ing 'cheme+

a) 1 Core+ red, black, "ello!, blue or natural #non-pigmented)7

b) 2 Cores+ red and black7

c) 4 Cores+ red, "ello! and blue7

d) Cores+ red, "ello!,blue and black7e) 5 Cores+ red, "ello!, blue, black and gre"7

f) 0 Cores and above+ T!o adAacent cores #counting and direction core) in

each la"er, blue and "ello!, remaining cores gre".

11. TESTS

The tests on the 1.1kV Control Cable shall be performed in accordance !ith

*'+155+#art-*)-1, *'+14-1, *'+541-1 ; *'+11-1 amended

up-to-date as mentioned belo!+

11.1 T


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m) Test for halogen acid gas evolution

n) Temperature *nde/.

11.2 ACCEPTANCE TESTS

The follo!ing shall constitute the acceptance tests+

a)


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The purchaser has the right to have an" or all t"pe acceptance tests carried out

b" an independent D


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12. IS STANDARD MARK

The cable #drum) shall also be marked !ith the 'tandard 8ark governed b" the

provisions of the Eureau of *ndian 'tandards


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ANNEURE"A

GUARANTEED TECHNICAL PARTICULARS FOR 2.5sqmm ARMOURED PVC

INSULATED AND SHEATHED 1.1kV GRADE COPPER CONDUCTOR (ISI

MARKED) WITH IMPROVED FIRE PERFORMANCE CONTROL CALE

AGAINST NIT NO! EPC"II#2$#2%1&"15

(T =, /+66, +- => 49, 4,-,0,0#=+,0)

S.N P304+7630s 2"C0, &"C0, $"C0, 1%"C0, 12"C0, 1"C0,

1 Dame of 8anufacturers

2 'tandard applicable

4

?hether material offered is

having *'* mark.=ive *'* marking no. ; its

validit" period

%ated Voltage

5'uitable for earthed or

unearthed s"stem

0

Continuous current rating

!hen laid in air at an ambient

temp. JC and for ma/imum

conductor temperature 5JC.

@ Current carr"ing capacit"

a 'hort Circuit


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cConductor resistanceKm at

2JC

I-s634+- ,43+6s

a Composition and t"pe

b Thickness

c Tolerance in thickness

1Colour scheme for

identification

11 I--,0 s9,349 ,43+6s

a 8aterial

b /truded?rapped

cCalculated diameter over laid

up cores

d Thickness

12 A0m0

a T"pe of armour

bDominal diameter over the

inner sheath

cDominal thickness of steel

stripdia. 6f !ire

14 O4,0 s9,349 ,43+6s

a 8aterial

b /truded, please confirm


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cCalculated diameter under the

sheath

d Thickness

e Tolerance on thickness

16verall diameter of cable over

the outer sheath

15Volume resistivel" at 2@JC

and @JC

10 C3=6, D0m

a Bimensions of the drum

b

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Tech Specs Control Cables