GEC

[blueheels2]

I saw in another thread from a year or two ago where someone said it was legal to drive a ground rod(s) at the service disconnect and then run the water pipe ground and gas bond to the ground bar in the house? Does this sound wrong? My service is a long ways from either of these.

 

[Volta]

Yeah, that does sound wrong to me. At least, you have to comply with 250.24. Additional connections may be permitted...

Gas is bonding, not an electrode or grounding. Metal underground water pipes are grounding electrodes.

 

[infinity]

You need to connect all of the electrodes that are present together. Here's one way to do it:

 

[jumper]

Clarify please.

 

[Dennis Alwon]

I saw in another thread from a year or two ago where someone said it was legal to drive a ground rod(s) at the service disconnect and then run the water pipe ground and gas bond to the ground bar in the house? Does this sound wrong? My service is a long ways from either of these.

All gec must go to the service, not to a sub panel.

 

[blueheels2]

That's what I was thinking but someone posted it in a thread a year or two ago and no one disputed it. Oh well.

 

[Volta]

That's what I was thinking but someone posted it in a thread a year or two ago and no one disputed it. Oh well.

Are you thinking of a thread about bonding an individual tenant's interior water piping to their particular sub-panel's EGC?

 

[jeffmiller]

The attached diagram mmay help.

 

[jeffmiller]

Sorry. Can't attach the file; it's too big.