Fill in the blanks with the appropriate answer.
When using screws for the purpose of attaching receptacles to a box, the screws shall be of the type provided with a listed receptacle, or shall be _______ screws having ______ threads per inch or part of a listed assembly in accordance with the manufacturer’s listing instructions.
A) sheet-metal / 8
B) machine / 32
C) non-metallic / 24
D) equivalent / 18
Find the Answer
Answer: B
A new sentence was added to Sec. 406.5 of the 2014 NEC. It reads as follows: “Screws used for the purpose of attaching receptacles to a box shall be of the type provided with a listed receptacle, or shall be machine screws having 32 thread per inch or part of listed assemblies or systems, in accordance with the manufacturer’s instructions.”
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].
