This question is related to grounding for audio signal processing, amplification, and reproduction equipment, in accordance with Art. 640.
Fill in the blank with the appropriate answer.
Where a wireway or auxiliary gutter does not contain power-supply wires, the equipment grounding conductor (EGC) shall not be required to be larger than ____ AWG copper or its equivalent.
A) 14
B) 10
C) 8
D) 6
Find the Answer
Answer: A
As outlined in Sec. 640.7(A) of the 2014 NEC, “Wireways and auxiliary gutters shall be connected to an equipment grounding conductor(s), to an equipment bonding jumper, or to the grounded conductor where permitted or required by 250.92(B)(1) or 250.142. Where the wireway or auxiliary gutter does not contain power-supply wires, the equipment grounding conductor shall not be required to be larger than 14 AWG copper or its equivalent.”
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].