Electrical Engineering · Wiring Rules and Regulations
When passing electrical cables through wooden partitions or walls, which protective bushings must be inserted?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Bare metal pipes
- 2Porcelain or PVC insulating tubes✓
- 3Adhesive cloth tapes
- 4Wooden plugs
Correct answer
Porcelain or PVC insulating tubes
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