Interpretation of NEC 760.48

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FaradayFF

Senior Member
Location
California
Hi Guys,

I've got a 120V circuit going from distribution panel to a fire alarm and protection panel. Based on NEC 760.41, this branch circuit would be classified as NPLFA. Now, based on NEC 760.48(A), this circuit can be combined with other non-fire alarm related Class 1 circuit in the same raceway.

Is my interpretation correct of NEC 760.48(A)? I don't think 760.48(B) would be applicable in this scenario, since it discusses Power-Supply Circuits, which could be constructed as circuits supplying fire alarm devices downstream of the fire panel.
Am I right on this?

I'll probably end up supplying the power to fire panels in dedicated conduits to make the system "rugged", I was just wondering if there are any requirements in the code that require me to do so.

Thanks,
EE
 

S'mise

Senior Member
Location
Michigan
I agree with your interpretation,
although I'm not clear about the identification requirements.

Would you paint fire alarm supply circuit (eg..conduit, boxes) red if it also contained multiple other non fire circuits?
 
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