Electrical Installation
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******************* ESSAY *******************
1ai)
An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage....
1bi)
- Fibre glass
- Mineral wool
- cellulose
- Polyurethane Foam
- Polystyrene...
1bii)
- silver
- copper
- gold
- aluminum
- iron
1ci)
“ Soldering ” is defined as the process of joining two pieces of metals using a filler metal, known as solder, having a low melting point below the melting point of the work piece
1cii)
- Flux allows solder to properly form between the pad and the component.
- It extends the life of the solder particles.
- It generates the correct viscosity and adhesion.
- It cleans the surface of pad and components.
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2a)
Always use insulated tools while working.
Never use equipment with frayed cords, damaged insulation or broken plugs.
Always take care while soldering your circuit boards. Wear goggles and keep yourself away from the fumes. Keep the solder iron in its stand when not in use; it can get extremely hot and can easily cause burns.....
2bi)
A fuse is a small, thin conductor designed to melt and separate into two pieces for the purpose of breaking a circuit in the event of excessive current......
2bii)
Current flowing through a conductor’s nonzero resistance leads to power dissipation. Power is dissipated in the form of heat. Heat raises the temperature of the conductor. If the combination of current amplitude and duration is sufficient to raise the temperature above the fuse’s melting point, the fuse becomes an open circuit and current flow ceases.....
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4ai)
V- fillament
W- glass bulb
X-
Y- support
Z- fitting
4aii)
Eco lamp
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Still Solving!!!!!
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Credits: SAGEER SG
Sources: Sageerweb.com.ng
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