Q. Can I pull Type NM cable in a PVC sleeve located in a ground floor slab for the kitchen counter island? A.  No. Type NM cable must not be used in wet or damp locations [334.12(B)(4)]. The interior of enclosures or raceways installed in an underground installation are considered to be a wet location [300.5(B)]. Cables and insulated conductors installed in underground enclosures or raceways must be listed for use in wet locations, according to 310.10(C). The definition of a “Wet ...

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