MC Cable Feeders

[mgvecohio]

Is it against code to use Armor Clad interlocking cable for feeders to panels in a hospital?

[stew]

517.13(A) says that as long as the outer metal sheath is identifiable as an acceptable grounding return path then it is a permissible wiring method.

[fc]

But I think you asked about MC cable? And it's not. You need HCF cable

[roger]

When speaking of feeders for the Normal or Equipment Branch MC or AC is fine.

There is no redundant grounding requirement for feeders.

Roger

[stew]

HCF?fc what code section requires HCF? I dont even guess I know what HCF is actually.

[ June 14, 2004, 09:16 PM: Message edited by: stew ]

[fc]

Stew HCF is Health Care Facilities Cable. But Roger is correct They where asking about feeders.
But for 517.13 you would use HCF cable.

[stew]

I guess I must be misreading 517.13(A) The last sentence specifically allows the use of MC cable If the sheath is identified for use as an equipment grounding path. Where did I misinterpret?Or is HCF cable a type of MC that meets this criteria.. Where is HCF cable shown in the code by the way?

[ June 15, 2004, 01:23 AM: Message edited by: stew ]

[don_resqcapt19]

Stew,
The jacket of the standard interlocking armor type of MC cable is not suitable for use as an equipment grounding conductor, so this cable can't be used for 517.13. The jacket of MC cable of the smooth or corrugated tube type is suitable for use as an EGC, but this type of cable is not normally used.
Don

[stew]

Thanks don . Do you know where I might find any info on Hcf cable? I have never used it and would like to know more.

[bill addiss]

Stew,

Take a look >> here (http://www.afcweb.com/faq_.html)

Bill

[stew]

Thanks a very informative site to say the least.