Grounding bushings

[Rfloyd100]

Looking for a more clear description on when and where a grounding bushing is needed.

We do a lot of 600 amp services for larger homes. Usually our set up is a 36x36 CT with a 3" nipple into a 36x6x6 gutter and out of the bottom of the gutter dropping into each of our 200amp service disconnects. Thanks.

 

[infinity]

Almost never required unless you're dealing with concentric and eccentric KO's. Your 3" nipple can be bonded by using a single grounding locknut on a 3" punched hole.