MC for Emergency wiring method

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mpwasco

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Location
oak Creek WI
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Project Manager
I don't see in the NEC where it states M/C can not be used as a wiring method for emergency lighting. every time i bring this up to my field workers i am constantly told you can not use M/C and that it has to be piped.....? i can reference this as being a requirement for Healthcare but what about other occupancy's? (Warehouses, multi family....etc. any advise would be great-thanks
 
We've been using MC for this purpose for decades. Ask for a code reference.

Welcome to the Forum. :)
 
farmantenna said:
I don't see any reason why you can't use mc hcf for healthcare facility . I know I have
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A word of explanation
For a long time AFC had the health care flexible cable market, AC with an insulated EGC gave the redundant EGC path
Then Southwire came out with MC-AP that used the sheath for an EGC path. Add an insulated EGC, and then you have a product that has the redundant EGC.
The advantage of MC-AP are
No red heads required
Support every 6 ft instead of 4.5
30% faster installation time as not EGC to terminate
 
farmantenna said:
I don't see any reason why you can't use mc hcf for healthcare facility . I know I have
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As Greentagger points out, flexible wiring methods for emergency circuits in healthcare are pretty much prohibited. 517.30(C)(3) before 2017

Roger
 
But would MC/AP or A/C be considered flexible? Smurf (ENT) is flexible, but is considered “hand bendable”. In a normal installation, it is not ment to be flexed.
 
hillbilly1 said:
But would MC/AP or A/C be considered flexible? Smurf (ENT) is flexible, but is considered “hand bendable”. In a normal installation, it is not ment to be flexed.
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Yes, MC/AP and A/C are flexible wiring methods. Smurf wouldn't meet the requirements of 517.13

Roger
 
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