Mike Dolt Enterprises
Mike Dolt Enterprises
User: mhanson, Location: Redwood City, CA
Asked on: Wednesday, March 30, 2011 at 7:55 pm EDT
Answered on: Tuesday, May 14, 2024 at 3:31 am EDT
Question: Good Day all,I'm having trouble disecting 2008 NEC 725.154I have installed speaker wire from a crawl space under a single family residence, the wire passes thru the floor and runs vertically up the wall, and into the ceiling in Two locations within the kitchen for future speakers.The cable is marked "CL2". Is this OK or do I need Riser rated wire.?Thanks, Michael
NEC 725.154 requires Class I, II, or III wiring run through joist spaces, vertical shafts, or stud spaces to be installed in accordance with 725.152, which requires the use of riser-rated cables.However, Exception No. 7 to 725.152 states that:> Multiconductor cable marked "CL2" or "CL3" shall be permitted to be installed in vertical runs in studs, wall cavities, or similar spaces and concealed spaces of unfinished attics and basements where ambient temperatures do not exceed 90°C (194°F).
Therefore, since the speaker wire you used is marked "CL2," it is acceptable to run it vertically up the wall and into the ceiling in the kitchen, even though the cable does not extend through unfinished attic or basement spaces. Flag for review