Electrician Red Seal · Question
During a rough-in inspection, an electrician notices that NMD90 cable passing through a steel stud has had the protective bushing fall out. What specific CEC rule is violated by this condition?
Rule 12-510(1) mandates that non-metallic sheathed cable passing through metal studs must be protected from physical damage by means of a bushing or grommet. Th
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Question: During a rough-in inspection, an electrician notices that NMD90 cable passing through a steel stud has had the protective bushing fall out. What specific CEC rule is violated by this condition?
Answer options: ✅ Rule 12-510(1) - Protection against physical damage.
- Rule 12-516(2) - Cable support requirements.
- Rule 12-518(1) - Minimum bend radius.
- Rule 12-520(1) - Cable termination enclosures.
Correct answer: Rule 12-510(1) - Protection against physical damage.
Explanation: Rule 12-510(1) mandates that non-metallic sheathed cable passing through metal studs must be protected from physical damage by means of a bushing or grommet. The absence of this protection violates this rule.
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