Ground bushing requirements?

[herding_cats]

I'm getting ready to tie in three (3) 200A subpanels from a large 3000A MDP. My question is are grounding bushings required on both ends of the EMT or just one? I'm running 2" EMT on all three subpanels. 208vac 3-phase. If I remember right I just need bushings on the subpanel side?

 

[don_resqcapt19]

 

[herding_cats]

I'm going with grounding bushings on the subpanel end only.

 

[herding_cats]

Thanks a lot this is really helpful

 

[infinity]

If I remember right I just need bushings on the subpanel side?

No bonding bushings are required for your installation.

 

[Jaybone812]

I'm going with grounding bushings on the subpanel end only.

No additional bonding is required for your install you are running 208 volt feeders out of the mdp your fused conductors at that voltage don’t require any additional/enhanced bonding

 

[herding_cats]

ok awesome. I have grounding bushings on the subpanel side already I'm going to leave them. I'm in an area where inspections don't know what you guys know and don't want trouble/issues. LOL

 

[Jaybone812]

ok awesome. I have grounding bushings on the subpanel side already I'm going to leave them. I'm in an area where inspections don't know what you guys know and don't want trouble/issues. LOL

Not required but also doesn’t hurt anything either , the only time you’d have to worry about additional/enhanced bonding methods when fused conductors are involved at that voltage would be in a hazardous location (250.100), or a metallic raceway/cable assembly between two non metallic boxes/enclosures

 

[infinity]

I'm going with grounding bushings on the subpanel end only.

Feel free to use them but as mentioned they're not required. You could save a few bucks by using the cheap plastic bushings if you like.