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#57757 - 10/20/05 02:43 PM tieing grounds together
rmiell Offline

Registered: 11/09/00
Posts: 261
Loc: La Junta, Co. USA
Recently had a discussion about the need to tie all equipment ground wires together in the same box. I seem to remember a thread about this, but I could not find it.

Do all EGCs in 1 box need to be tied together?

What if you have different circuits (IE: a #12 circuit and a #14) in the same box?

Question was concerning residental, with NM boxes, and NM cable.


Rick Miell

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#57758 - 10/20/05 02:55 PM Re: tieing grounds together
Redsy Offline

Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA
250.148 ('02 NEC) seems to imply that all EGCs be tied together.
However 250-148 ('99 NEC) is much more direct in that they all do need to be tied together.
That is what I do.

[This message has been edited by Redsy (edited 10-20-2005).]

#57759 - 10/20/05 07:44 PM Re: tieing grounds together
gfretwell Offline


Registered: 07/20/04
Posts: 9023
Loc: Estero,Fl,usa
Re 250.148

It appears all EGCs need to be connected to a metal box, hence together too(A).
That is a little less clear in an NM box(B).
Greg Fretwell


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