Double tapped grounds.

[Gary T. Heller]

This panel is in a new home. The workmanship is fine but as you can see from the picture. Some of the grounds are doubled up on the grounding buss. There are several places on the buss that were left open so it makes me wonder if the electrician new something I don't.

[apolillo]

Many panels allow doubling the grounds. It is usually noted on the panel data sheet.

Anatol

[cbellefontaine]

Anatol is correct. Usually doubling, and even tripling, of ground wires is not an issue. Never on neutrals but ok on grounds provided the panel is labeled for use in this fashion. NEC 408.21. Oh, only for branch circuits as well. Hope this helps.

[Gary T. Heller]

I'm still confused, when I read the NEC it says "Each grounded conductor shall terminate within the panel board in an individual terminal that is not also used for another conductor". NEC 408.41

[Bruce M. Graham]

The grounded conductor is the neutral, the grounding conductor is the ground.

[cbellefontaine]

The neutral is considered the grounded conductor. The ground is considered the grounding conductor. I know, I know, I know; why don't they just call them by names that we can easily understand. It is what it is. Hope this helps.

[Gary T. Heller]

O.K, I get it, thanks for clearing it up.

[Greg Fretwell]

There is an ongoing discussion at NFPA to do away with "grounding" language altogether except as it refers to the ground electrode system.
There is a strong lobby who wants the word "bonding" to be used for all non-current carrying conductors used to "bond" equipment to ground and the neutral. The whole concept of "grounding" beyond the main bonding jumper is a misnomer, You are really "bonding". It would certainly be confusing for a generation who grew up saying "ground" but after they embraced the term that it might actually simplify the language and the concepts.

[Marc D. Shunk]

That is a Square D Homeline panel in the picture. Doubled-up grounds are permitted in that brand and model of panel pictured. The panel's make-up also makes me think this was a modular/doublewide type home. Is that the case?

[Gary T. Heller]

It isn't a modular, actually it is a new upscale spec home on the north end of Phoenix.

[Michael Larson]

Originally Posted by Greg Fretwell

There is an ongoing discussion at NFPA to do away with "grounding" language altogether except as it refers to the ground electrode system.

They should just give up and call it the earthing conductor like European and IEC standards do.