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#19718 - 01/02/03 12:10 AM grounging bushings  
flush  Offline
Member
Joined: Dec 2001
Posts: 12
nj
mt question is when do i need a grounging bushing, the one where a ground wire gets luged in the bushing ..... ive done it on commercial jobs but not really sure where i have to ....any code refrence would be good to ....thanks


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#19719 - 01/02/03 03:37 AM Re: grounging bushings  
sparky66wv  Offline
Member
Joined: Nov 2000
Posts: 2,236
West Virginia
One instance where they are required is when installing conduit or conduit fittings to service enclosures that have KOs, eccentric and concentric. If you were to knock out the largest KO, then I guess it would be the same as punching or drilling a hole, and no bonding-bushing or bonding-locknut is required.

250.92(B)

Use PVC for the nipple or conduit between the meterbase and disconnect/panel and avoid the whole ugly mess.


-Virgil
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#19720 - 01/02/03 08:06 AM Re: grounging bushings  
Redsy  Offline
Member
Joined: Mar 2001
Posts: 2,056
Bucks County PA
See 250.97 for voltages greater than 250 V.
They are treated similar to services.



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