CAble tray conduit bonding

[tom baker]

What type of bonding is required where a rigid metallic conduit attaches to the side of a Aluminum Ready Rail cable tray. A hole is punched in the side of the tray (designed for this). Are two locknuts and a bushing OK?

 

[brother]

What type of bonding is required where a rigid metallic conduit attaches to the side of a Aluminum Ready Rail cable tray. A hole is punched in the side of the tray (designed for this). Are two locknuts and a bushing OK?

I think it would be, I dont know of any code that would require more. As for myself :wink: i would go head and use the grounding bushings on there as well. HOWEVER, I would NOT require it on others if i cant back it up with the CODE.

 

[benaround]

Try 392.7

If the tray is being used as an EGC