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Wires, Cables and Domestic Wiring
Electricity and Electronics · Chapter 5 · 4. Wires, Cables and Electrical Wiring
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Topics 7
- Construction of cables and flexes: solid and stranded conductors, insulation and protection; VIR, TRS and PVC insulation
- Selecting cable size: current-carrying capacity and voltage drop calculations
- Wiring systems: types and limitations
- Lighting circuits: separation of lighting and power circuits, switch in the phase line, dual (two-way) switching of lamps
- Power circuits: ring and spur/tree systems
- Wiring rules and regulations (local and IEE); sequence of equipment; effects of overloading
- Protection: fuses and trips, earthing of metalwork, mechanical protection of cables; bathroom regulations; dangerous practices and simple testing