Sizing the GEC

[The electron man]

In an electrical service with multiple main disconnects is the ground leading to the copper collection bar based on

250.66
Or 250.122

 

[roger]

What's a collection bar ?

 

[The electron man]

What's a collection bar ?

 

[roger]

View attachment 2573622

OK, are you attaching the GES or EGC'S? That is the answer to your question. is

 

[The electron man]

OK, are you attaching the GES or EGC'S? That is the answer to your question. is

I know egc is equipment grounding conductor what's GES

Basically all our grounds come to this bar then we take 1 #6 wire to the rod from the bar so I'm talking about the ground coming to the bar from the neutral in each main switch essentially grounding the neutrals how do I size that wire ?

 

[roger]

I know egc is equipment grounding conductor what's GES

Basically all our grounds come to this bar then we take 1 #6 wire to the rod from the bar so I'm talking about the ground coming to the bar from the neutral in each main switch essentially grounding the neutrals how do I size that wire ?

So is this bar where you ground the Service neutral in the service disconnect?

 

[The electron man]

So is this bar where you ground the Service neutral in the service disconnect?

Yes

 

[roger]

I know egc is equipment grounding conductor what's GES

Basically all our grounds come to this bar then we take 1 #6 wire to the rod from the bar so I'm talking about the ground coming to the bar from the neutral in each main switch essentially grounding the neutrals how do I size that wire ?

250.66

 

[The electron man]

250.66

Would I also you 250.66 to size the ground bounding my water system ? Also coming to the bar

 

[roger]

Would I also you 250.66 to size the ground bounding my water system ? Also coming to the bar

If the water system does not meet the requirement as a GE then go to 250.104

 

[LarryFine]

I know egc is equipment grounding conductor what's GES

GES is Grounding Electrode System, and GEC is Grounding Electrode Conductor

 

[The electron man]

Wow grounding is complex I have a lot to learn

 

[infinity]

Wow grounding is complex I have a lot to learn

Of all the articles that we use everyday Article 250 is one of the most misunderstood.

 

[ActionDave]

Wow grounding is complex I have a lot to learn

It's not so bad. It's like learning to drive a stick. The first couple of times it all seems overwhelming but you get the hang of it.