Isolated ground receptacles installed in nonmetallic boxes shall be covered with a _________.
A) nonmetallic faceplate
B) metal faceplate if the box contains a feature or accessory that permits the effective grounding of the faceplate
C) either A or B are allowed
D) neither A nor B is allowed
Find the Answer
Answer: C
As noted in Sec. 406.3(D)(2), isolated ground receptacles installed in nonmetallic boxes shall be covered with a nonmetallic faceplate or (by Exception) a metal faceplate if the box contains a feature or accessory that permits the effective grounding of the faceplate.
Owen is the owner and president of National Code Seminars and the holder of master electrician certifications in 46 states. He can be reached at [email protected].