Ground Bar

hbiss

EC, Westchester, New York NEC: 2014
Location
Hawthorne, New York NEC: 2014
Occupation
EC
Why is a ground bar required. If you have machine screws bolting the ground wires to the panel can
Umm, multiple ground wires maybe? It's not required but it does make the job a lot easier. What would you rather do, drill & tap a bunch of holes for ground lugs or screws or just one to mount a ground bar that could take up to a dozen ground wires?

-Hal
 

kwired

Electron manager
Location
NE Nebraska
Why is a ground bar required. If you have machine screws bolting the ground wires to the panel can
Not required. Who says it is and what is their reference in requiring so? If a local rule then I guess you have no choice, NEC doesn't require it, it is just convenient in many cases.
 

kwired

Electron manager
Location
NE Nebraska
Maybe we're talking about in a sub-panel?
I assumed we were. Where does it say you must have a "ground bar"?

You can't land grounded and grounding conductors in same place beyond service/first disconnecting means of SDS, but there is more than one way to connect EGC's, a bar just happens to be a fairly convenient method, especially if the cabinet already has a prepared location to mount it.
 

ggunn

PE (Electrical), NABCEP certified
Location
Austin, TX, USA
Occupation
Electrical Engineer - Photovoltaic Systems
It occurs to me that The Ground Bar would be a good name for a drinking establishment catering to electricians.
 
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