mc cable

[m2oliva]

If the outside sheath of mc cable alone is not suitable for equipment grounding,if two mc cables are spliced inside a box,does'nt the ground insde the cables also have to be bonded to the box?

 

[iwire]

Re: mc cable

Yes, you must land the grounding conductor to any metal box.

 

[m2oliva]

Re: mc cable

what section of the code states this besides334-23.

 

[don_resqcapt19]

Re: mc cable

250.148

 

[iwire]

Re: mc cable

2002 NEC

250.118(11)

250.4(A)

250.148

[ June 11, 2003, 09:42 PM: Message edited by: iwire ]

 

[m2oliva]

Re: mc cable

what if it was to be a isolated ground circuit?

 

[don_resqcapt19]

Re: mc cable

Then there must be 2 EGCs in the MC cable. One would connect to the metallic outlet box and the second to the grounding terminal on the receptacle.
Don

 

[iwire]

Re: mc cable

m2oliva, The company I work for runs miles of this stuff.

We just ask for 12/2 IG MC or 10/2 IG MC.

This will show up with Black, White, Green and Green with Yellow stripe.

One maker of this cable is AFC Cable Systems out of New Bedford, MA, I sure there are others also.

AFC Cable Systems

 

[m2oliva]

Re: mc cable

A couple more mc questions in regard to grounding .Must every outlet box have a pigtail to the box and to the outlet?If your splicing in a pullbox and there are numerous grounds from different circuits is it ok to put them all together and put one tail to the box[we useally keep one ground per 3 ckts.]

 

[hbiss]

Re: mc cable

All grounds should be wire nutted together with one pigtail going to the box. MC grounds are no different than romex grounds with metal boxes.