Grounding Outside Main Breaker / Bonding Neutral and Ground
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Grounding Outside Main Breaker / Bonding Neutral and Ground
I have a newly installed 200 amp outside breaker panel. It is my understanding that this panel is the single bonding point for neutral and ground. So, in this panel I have a #4 bare copper wire that comes up from the grounding rods and is then bonded to neutral with a lug.
I have four wires running from this outside panel into my basement to the (sub panel) for my whole home. An insulated #6 ground wire is attached to the case of the outside panel and then comes into the main panel grounding buss bar. There is a separate isolated neutral buss bar, as there should be.
The problem is that I don't see how the case of the 200 amp outdoor panel is securely grounded in the first place. The neutral lugs are isolated and the outdoor breaker did not come with any bonding screws or similar.
Should I simply move the insulated ground cable running to the sub-panel over to the other neutral lug... or is it ok as it is?
The attached image is of the outdoor 200 amp breaker.
Any ideas are certainly appreciated. Thank you!
I have four wires running from this outside panel into my basement to the (sub panel) for my whole home. An insulated #6 ground wire is attached to the case of the outside panel and then comes into the main panel grounding buss bar. There is a separate isolated neutral buss bar, as there should be.
The problem is that I don't see how the case of the 200 amp outdoor panel is securely grounded in the first place. The neutral lugs are isolated and the outdoor breaker did not come with any bonding screws or similar.
Should I simply move the insulated ground cable running to the sub-panel over to the other neutral lug... or is it ok as it is?
The attached image is of the outdoor 200 amp breaker.
Any ideas are certainly appreciated. Thank you!
#3
The panel label should show the bond screw location. I too think it goes where the red circle is drawn.
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Would have expected the 200amp box to come with it already bonded, with a copper screw, but perhaps the screw (can't quite make it out) in between the two neutral lug screws is for that purpose.
CasualJoe - think the green marked wire is the ground wire for conduit to sub panel in house.
CasualJoe - think the green marked wire is the ground wire for conduit to sub panel in house.
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CasualJoe - think the green marked wire is the ground wire for conduit to sub panel in house.
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Looks kind of like PVC stuck into the knockout ? Should have had a male adapter on the end of the PVC with a lock nut on the inside to secure the FA .
But , I have seen worse .........
I agree , should have a green ground screw bonding the neutral to the enclosure .
There are ways to address this .
God bless
Wyr
But , I have seen worse .........
I agree , should have a green ground screw bonding the neutral to the enclosure .
There are ways to address this .
God bless
Wyr
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Sorry for the delay in replying. I did eventually find a very large green screw (almost thrown away with the box!) and it does indeed go where the red arrow was drawn. Thank you all for your help.
The guy I had install it didn't think there was anything wrong with the way he left it.
The smaller green cable is an insulated 6# that brings ground into the sub panel in the basement. The pvc pipe goes to a 90 with removal face on the basement side and all of that is secured. It is cut flush inside the outdoor breaker, but I don't see any harm in it.
Anyway, thanks again for the quick replies.
The guy I had install it didn't think there was anything wrong with the way he left it.
The smaller green cable is an insulated 6# that brings ground into the sub panel in the basement. The pvc pipe goes to a 90 with removal face on the basement side and all of that is secured. It is cut flush inside the outdoor breaker, but I don't see any harm in it.
Anyway, thanks again for the quick replies.
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No, he is not. I'm going to pull the pipe through, cut a new piece and then glue on a proper threaded ended. Aside from that the install looks alright to me. Thanks again!