INTRODUCTION

Electrical component or accessories is any component in the generation, transmission,

distribution or consumption of electric power. Some examples of these components would be

relays, contactors, timers, circuit breakers, fuses and motor starters. Elements include devices

such as inductor, resistor, capacitor, conductor, line or cathode ray tube with terminals at which

it may be connected directly with other devices. It can also mean an antenna radiator (either

parasitic or active).

Electrical wiring in general refers to insulated conductors used to carry electricity, and

associated devices. This article describes general aspects of electrical wiring as used to provide

power in buildings and structures, commonly referred to as building wiring. This article is

intended to describe common features of electrical wiring that should apply worldwide.

OBJECTIVES

1. To determine the specific purpose and function of each electrical accessories such as

copper bush, inspection tee, trunking jointer, copper bridging, terminal box and etc.

2. To review and discuss all the functions of electrical wiring accessories and identify the

types of electrical devices in building.

3. To find out the schematic diagram of fluorescent lamp circuit and its functions.

APPARATUS

1. Electrical accessories sample board.

2. Camera.

PROCEDURE

1. The electrical accessories at sample board are identified.

2. The function and usage of the electrical accessories is determined.

3. The schematic diagram of fluorescent lamp circuit is sketched and the functions of each

component is identified.

RESULTS

1. AC power plugs and sockets are devices for connecting electrically operated devices to the power supply. An electric plug connects mechanically to a matching socket. Usually plugs are movable connectors, and sockets are fixed to equipment.

1 GANG METAL CLADED SOCKET 1 GANG FLUSH SOCKET

-Solid metal build and construction -Impact resistant,polycarbonate socket

made to resist external damages with insulating properties and will crack or

from extreme situation. discolor

- commonly known as a "13 amperes plug", a large plug that has three rectangular prongs forming a triangle.

- Contain load rating measures 13 Ampere..

2. Switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another. Each set of contacts can be in one of two states: either 'closed' meaning the contacts are touching and electricity can flow between them, or 'open', meaning the contacts are separated and nonconducting.

1 GANG M/C SWITCH 1 GANG METAL CLADED AWITCH

-Impact resistant, polycarbonate socket with -Solid metal build and contruction made

Insulating properties and will not crack or to resist external damages from extreme

discolor. situations.

- A simple on-off switch with the two terminals are either connected together or disconnected from each other.

3. The conceal box is use to place the electrical components of a socket or a switch so that it does not exposed to the atmosphere and avoid damages to its inner components. It also functioned as a connection space between the internal wire to the socket or switch.

3X3 PARTITION CONCEAL BOX

4. A double 13A socket outlet is a socket that has two socket combined together which provide two power supply outlets.

DOUBLE 13A SOCKET OUTLET

5. These boxes is use to place the electrical components of a double socket outlets so that it does not exposed to the atmosphere and avoid damages to its inner components. It also functioned as a connection space between the power supply wire to the socket outlets.

3X6 PARTITION BOX M/C CONCEAL BOX

- Conceal box used to give power supply - Conceal box made from metal that is from the internal wires within the wall. used to connect external power supply

wires to the socket outlets.

6. An insulator, also called a dielectric, is a material that resists the flow of electric charge. In insulating materials valence electrons are tightly bonded to their atoms. These materials are used in electrical equipment as insulators or insulation. Their function is to support or separate electrical conductors without allowing current through themselves.

Insulators are commonly used as a flexible coating on electric wire and cable.

PVC or polyvinylchloride has now become the most common type of electrical insulation. It can tolerate both moderately low and moderately high temperatures and is does not cost very much. Higher-temperature installations, however, require different types of insulation.

1.5 mm PVC

2.5 mm PVC

4 mm PVC

6 mm PVC

25 mm PVC

46 mm PVC /SWA /PVC

- Different wire size are manufacured to be used according to current carrying capacity.

- The bigger the electrical wire, the bigger the current capacity it allows.

- Insulators such as the 46 mm PVC also plays an important part in keeping the wires in good condition and may require less maintenance.

- Type of insulators may be vary according to the conditions it may encounter.

7. An electrical conduit is an electrical piping system used for protection and routing of electrical wiring. Electrical conduit may be made of metal, plastic, fiber, or fired clay.

G.I CONDUIT G.I FLEXIBLE CONDUIT

- GI conduit a is galvanized steel tubing, with a tubing wall that is thick enough to allow it to be threaded. Its common applications are in commercial and industrial construction.

- Flexible conduit is available for special purposes where conduit requires to be bent and normally applies to a mobile machineries.

8. Trunking jointer is an electrical wireways, generally rectangular in cross section with removable lids. These cable trunking and fittings giving maximum protection from exposure to external damages and corrosion. It is used for horizontal and vertical mounting or suspension, across roof joists for general power distribution.

TRUNKING JOINTER

9. Copper bridging or contact bridges is used to measure electric capacity by null method and the material that is made out of copper. There are mainly three kinds of Electrical Contact Component:(1) Riveting Parts: contact is riveted on copper component(2) Welding Parts: sheet contact is welded on copper component(3)Stamping Parts: precious clad metal is stamped into contact bridge component

Contact Components are widely used in low voltage electrical appliances and households, such as Switch, Relay, Thermal Controller , Circuit Breaker, Contactor, Controller, Timer, etc.

COPPER BRIDGING

10. To provide a smooth entry into the box and avoid sharp corners which cause damage in cable insulation.

COOPER BUSH

11. Grip the conduit and bite it into the metal

RUNNING COUPLER

12. It is an enclosure which includes, mounts, and protects one or more terminal boards, It may include a cover such accessories as mounting hardware, brackets, locks and conduit fittings.

TERMINAL BOX TROUGH BOX 2 WAY BOX

-To channel wires to -Used for long wire installation. -Used to channel wires at

electrical omponents. vertical and horizontal spaces.

3 WAY BOX 4 WAY BOX BOX COVER

-Used for distributing one -Used to channel wire from -Used to cover all the boxes

wire supply to two directions. 1 to 3 different directions. mentioned above.

11. Device that is inserted into a socket outlet to receive one or more plugs but it may have a different corners.

12. To secure multiple runs of wire.To fix tough rubber-sheath and PVC0 sheath.

13. Fittings that are created for conduit do so that the conduit can bend into the required directions.

14. A short radius length of tubing for connecting three length of conduits at right angle to left and right direction.

15. A short radius length of tubing for connecting two length of conduits at right angle or 90º.