When an NM exposed cable passes through a floor, the cable is permitted to be protected by which wiring method?

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Prepare for the ICC Residential Electrical Inspector Level 1 Exam. Study with our electrifying flashcards and multiple-choice questions. Dive into hints and explanations to boost your confidence. Elevate your knowledge and get ready to ace your exam with style!

Multiple Choice

When an NM exposed cable passes through a floor, the cable is permitted to be protected by which wiring method?

Explanation:
Protecting NM cable where it passes through a floor requires a listed through-floor protection method. RTRC-XW is a listed protection system designed specifically for NM conductors going through floors, providing a rigid, durable path that guards the cable from nails, screws, and abrasion as it transitions between levels. The other options—EMT, FMC, or PVC conduit—are different protective raceways and aren’t the approved through-floor protection method in this situation.

Protecting NM cable where it passes through a floor requires a listed through-floor protection method. RTRC-XW is a listed protection system designed specifically for NM conductors going through floors, providing a rigid, durable path that guards the cable from nails, screws, and abrasion as it transitions between levels. The other options—EMT, FMC, or PVC conduit—are different protective raceways and aren’t the approved through-floor protection method in this situation.

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