This question is related to grounding for audio signal processing, amplification, and reproduction equipment, in accordance with Art. 640.
Fill in the blanks with the appropriate answers.
Where accessible to the public, flexible cords and cables laid or run on the ground or on the floor shall be covered with _________. The cover requirements of Sec. 300.5 ________ apply to wiring protected by burial.
A) wood / never
B) plastic / always
C) concrete / shall
D) nonconductive mats / shall not
Find the Answer
Answer: D
As outlined in the first sentence of Sec. 640.45, “Where accessible to the public, flexible cords and cables laid or run on the ground or on the floor shall be covered with approved nonconductive mats.” As noted in the last sentence of this same section of the NEC, “The cover requirements of 300.5 shall not apply to wiring protected by burial.”
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].
