EGC's.

[mstrlucky74]

So looking at this grounding riser there are conductors that are coming from the equipment and the ground or neutral bar(I assume) within that equipment to a ground bar. Technically are these both equipment grounding conductors or just the one from the equipment enclosure and not the ground/neutral bar? Thanks

 

[infinity]

The EGC is typically the conductor run with the feeder or branch circuit conductors. From your graphic it appears that neither of those conductors would be an EGC.

 

[mstrlucky74]

The EGC is typically the conductor run with the feeder or branch circuit conductors. From your graphic it appears that neither of those conductors would be an EGC.

That's exactly what I thought. So what would those(in the pic) be? Just grounding/grounded conductors or bonding?

 

[Dennis Alwon]

That's exactly what I thought. So what would those(in the pic) be? Just grounding/grounded conductors or bonding?

I m guessing they are bonding conductors

 

[infinity]

That's exactly what I thought. So what would those(in the pic) be? Just grounding/grounded conductors or bonding?

The one running to the Wye part of the transformer diagram (750 kcmil) would be a GEC and an incredible waste of money.

 

[packersparky]

Could they be grounded conductors and EGC's for feeders shown without the ungrounded conductors?

 

[mstrlucky74]

The EGC is typically the conductor run with the feeder or branch circuit conductors. From your graphic it appears that neither of those conductors would be an EGC.

So in this other pic the grounds are the EGC's?

 

[infinity]

So in this other pic the grounds are the EGC's?

Yes, it's common on drawings to use the word ground or some abbreviation to represent the EGC.

 

[mstrlucky74]

Yes, it's common on drawings to use the word ground or some abbreviation to represent the EGC.

Thanks. Weird, you would think the conductor they shown on the grounding riser from the equipment enclosure to the ground bar would be a EGC.

 

[infinity]

Thanks. Weird, you would think the conductor they shown on the grounding riser from the equipment enclosure to the ground bar would be a EGC.

Not sure why you would you think that. The EGC must be run with the branch circuit or feeder conductors not a separate conductor like the ones shown in your first graphic hence my response in post #2.

 

[mstrlucky74]

Not sure why you would you think that. The EGC must be run with the branch circuit or feeder conductors not a separate conductor like the ones shown in your first graphic hence my response in post #2.

TY

 

[electrofelon]

Could be a more-grounding-is-better/waste of money setup. We had a ~2MW solar array that, in addition to all the EGCs run with the circuits and everything bonded properly, had a mysterious "bonding conductor" running around in the cable tray and tagging onto stuff (again).