Electrical Engineering · Electrical Maintenance Safety
When is it safe to replace a blown fuse in a distribution board?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1While the power supply is still ON
- 2After switching OFF the main power supply✓
- 3During heavy rainfall
- 4At any time without switching off
Correct answer
After switching OFF the main power supply
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