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#87371 - 02/23/04 05:34 PM Parellel wiring
Wirenuttt Offline

Registered: 11/10/02
Posts: 267
Loc: Massachusetts
In parallel wiring, when sizing the ground,do you parallel the ground and figure each ground at full rating. In other words, if you have parallel 350s to give you 600 amps, do you pull each ground rated at 600 amps, or do you figure each at 300 amps. I would think you would figure each at 600 amps for full protection. This is for grounding raceway and equipment.

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#87372 - 02/23/04 06:20 PM Re: Parellel wiring
Jim Phillips Offline
Junior Member

Registered: 02/22/04
Posts: 2
Loc: Canton, Ohio U.S.A.
NEC 250.122(F)(1) Size them based on the upstream overcurrent device as shown in Table 250.122. i.e 600A = minimum #1 Copper


#87373 - 02/24/04 09:23 AM Re: Parellel wiring
Wirenuttt Offline

Registered: 11/10/02
Posts: 267
Loc: Massachusetts
Thanks Jim;
That was exactly what I needed.



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