Physics · Electrical Wiring and Earthing
According to standard electrical safety codes, when a copper strip is used as an earth electrode or wire, its cross-section should be:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Not less than 15 mm × 0.6 mm
- 2Not less than 15 mm × 1.6 mm
- 3Not less than 25 mm × 0.6 mm
- 4Not less than 25 mm × 1.6 mm✓
Correct answer
Not less than 25 mm × 1.6 mm
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