Audio cables installed exposed on the surface of ceilings and sidewalls shall be supported in such a manner that they will not be damaged by normal building use. Cables shall be secured by _____ designed and installed so as not to damage the cable.
a) straps
b) staples
c) cable ties
d) any of the above
See answer and applicable Code reference
The correct answer is: d) any of the above
Article 640 covers the equipment and wiring for audio signal processing, amplification, and reproduction equipment. As outlined in a portion of Sec. 640.6(B), "Cables installed exposed on the surface of ceilings and sidewalls shall be supported in such a manner that the audio distribution cables will not be damaged by normal building use. Such cables shall be secured by straps, staples, cable ties, hangers, or similar fittings designed and installed so as to not damage the cable."