Electrical Engineering · Electrical Safety Procedures
If there is uncertainty about which sub-main controls a specific electrical fault area, what is the safest course of action?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Switch off street light supply
- 2Switch off the main supply switch✓
- 3Switch off neighbouring feeder line
- 4Switch off fan circuits only
Correct answer
Switch off the main supply switch
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