Permanent Audio System Installations

April 24, 2014
The Code requirements for permanent audio system installations are outlined in Part II of Art. 640 of the 2011 NEC.

Loudspeakers of permanent audio systems that are installed in fire resistance-rated partitions, walls, or ceilings shall be listed for the purpose or installed in an enclosure or recess that _____.

a) maintains the fire-resistance rating
b) is no more than 4 in. deep
c) is no more than 6 ft - 6 in. high
d) all of the above

See answer and applicable Code reference

The correct answer is: a) maintains the fire-resistance rating

The Code requirements for permanent audio system installations are outlined in Part II of Art. 640 of the 2011 NEC. As noted in 640.25, "Loudspeakers installed in a fire resistance-rated partition, wall, or ceiling shall be listed for that purpose or installed in an enclosure or recess that maintains the fire resistance rating."

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