MC As An EGC

[A/A Fuel GTX]

MC cable as a 200A feeder. Junction box with a splice about mid run. Does the EGC from the MC cable need to be landed via a lug to the junction box? What if there were 2ea 200A feeders spliced in this junction box. Do both EGC's need to be terminated to the box?

 

[texie]

MC cable as a 200A feeder. Junction box with a splice about mid run. Does the EGC from the MC cable need to be landed via a lug to the junction box? What if there were 2ea 200A feeders spliced in this junction box. Do both EGC's need to be terminated to the box?

Yes. See 250.148.

 

[Smart $]

MC cable as a 200A feeder. Junction box with a splice about mid run. Does the EGC from the MC cable need to be landed via a lug to the junction box? What if there were 2ea 200A feeders spliced in this junction box. Do both EGC's need to be terminated to the box?

Each EGC is not required to be lugged directly to the box... but all must be bonded to the box. In other words, you can splice them all together with a EGC [to box] bonding jumper.

 

[A/A Fuel GTX]

Thanks, that's what I thought but never ran this large MC before and thought there might be some manufacturing differences vs the smaller stuff that would allow the outer jacket to serve as an EGC.

 

[augie47]

Thanks, that's what I thought but never ran this large MC before and thought there might be some manufacturing differences vs the smaller stuff that would allow the outer jacket to serve as an EGC.

I think, even it the jacket was a listed ground, you would still need to bond the actual equipment grounding conductor, if present, according the quoted Article. It would be the same as an EGC in EMT.