When nonmetallic device boxes that are 2-gang or more are used, the installed Type NM cable must be supported no more than __________ inches from the box.

Question

Quizplus · Accepted Answer

According to NEC 314.17(C), "Nonmetallic boxes shall be supported by at least two #8 screws, or equivalent, that secure the box to the building structure. Where such support does not exist, nonmetallic boxes shall be secured to a support designed to hold the weight of the box and the material to be installed therein. When nonmetallic boxes are used with nonmetallic sheathed cable, each cable shall be secured within 12 in. of the box and at intervals not exceeding 2 1/2 ft."

When Nonmetallic Device Boxes That Are 2-Gang or More Are