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-   -   NEC requirements for low voltage cable in attic (http://www.diychatroom.com/f18/nec-requirements-low-voltage-cable-attic-163618/)

Heisenberg 11-17-2012 05:39 AM

NEC requirements for low voltage cable in attic
 
I need to run a low voltage multiconductor cable (30V) through the attic above an attached garage. I'm wondering about the flame test rating & temperature requirements.

1) Is riser rated cable required? I believe not, though I'm looking for confirmation on this.

2) What temperature rating is required?

As a reference, I looked at the existing NM-B romex already present in the attic. The specs say it's 90 C, but do not mention flame test rating. Since romex is running throughout 2 floors and a basement, does that mean romex is riser rated? Or is residential an exception for multi-level wires?

ddawg16 11-17-2012 06:33 AM

Low voltage? You can do what ever you want.....


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