Fill in the blank with the appropriate answer.
Faceplates provided for snap switches mounted in boxes shall be installed so as to _________ cover the opening, and where the switch is flush mounted, seat against the finished surface. Any gaps or open spaces at the edge of a box installed in a non-combustible surface shall be repaired if _________.
A) completely / if the gap is greater than 1/8 in.
B) formally / if the gap is greater than ¼ in.
C) be conductive and / not required if using a “jumbo” plate that completely covers the opening
D) be nonconductive and / there is no requirement for repairing around boxes
Find the Answer
Answer: A
As noted in Sec. 404.9(A), “Faceplates provided for snap switches mounted in boxes shall be installed so as to completely cover the opening and where the switch is flush mounted, seat against the finished surface.”
As per Sec. 314.21, “Any gaps or open spaces at the edge of a box installed in a non-combustible surface shall be repaired if the gap is greater than 1/8 in.”
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].
