Grounding or bonding??

[Bill Smith]

The main disconnect is located in the basement. The distribution panel is on the second floor. Is the copper conductor that runs from the panel to the main disconnect a grounding conductor or a bonding jumper? Should it be #8 copper ? (like the GEC at the disconnect) or can is be smaller?

[Jeffrey R. Pope]

It sounds as if you are referring to the equipment grounding conductor (EGC) which would be sized according to the size of the OCPD or rated capacity of the remote panel.

[Bill Smith]

Thanks Jeff.

[Paul W. Abernathy]

Table 250.122 in the NEC will assist in helping you size them correctly Bill......if you dont have a NEC.......always suggest them as a good investment...

Knowlegde is KING !

[Bill Smith]

Knowlegde is KING !

and I am a peasant!!!!!