← 3.2 Equipment at Consumers intake point
The main isolation switch
Electrical Technology · Grade 10 · about 40 minutes
The consumer main switch: how it isolates the whole installation, why it is double-pole, and why it is not the same as a fuse.
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- 7 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
- Your progress kept across every subject you take
Other lessons in this sub-strand
- Equipment at the consumer intake point
- The KPLC service line
- The supplier cut-out
- The energy meter
- The main isolation switch
- Main fuse and circuit breaker
- The consumer unit
- Functions of the control equipment
- Installing intake equipment in sequence
- The consumer earthing point
- Installing an earth electrode
- Why intake equipment must follow the rules