Which cable designation refers to cables suitable for plenums?

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Multiple Choice

Which cable designation refers to cables suitable for plenums?

Explanation:
Cables used in plenums must meet stricter smoke and flame standards because these spaces are air-handling environments. The P on a CL rating indicates a plenum rating, meaning the cable is judged safe for use in such spaces. Among common options, the designation that clearly combines a Class 3 rating with a plenum rating is CL3P, signaling it’s suitable for plenums. Other options miss the plenum qualification or pertain to different class ratings, so they aren’t designated for plenums in this context.

Cables used in plenums must meet stricter smoke and flame standards because these spaces are air-handling environments. The P on a CL rating indicates a plenum rating, meaning the cable is judged safe for use in such spaces. Among common options, the designation that clearly combines a Class 3 rating with a plenum rating is CL3P, signaling it’s suitable for plenums. Other options miss the plenum qualification or pertain to different class ratings, so they aren’t designated for plenums in this context.

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