bonding troughs

[scwirenut]

i am installing a trough over a sub panel 277/480 . 2"emt in pinched holes . im using this for aesthetic purpose of hiding multiple conduits below dropped ceiling. conductors pass through without splices. Do I need any additional bonding?, such as a ground bar. or is that only if their are splices, such as in a j box.

 

[RUWired]

. im using this for aesthetic purpose of hiding multiple conduits below dropped ceiling. .

What do you mean by hiding multiple conduits?

 

[infinity]

No additional bonding required for punched holes the size of the raceway.

 

[electricalperson]

What do you mean by hiding multiple conduits?

hes using a 2 inch emt to come down from the celing instead of multiple other emt's so it looks better

 

[RUWired]

hes using a 2 inch emt to come down from the celing instead of multiple other emt's so it looks better

Thats what i figured, but i heard of and seen some strange things.

 

[SEO]

Grounding is probably ok but if 2" emt is longer than 24" you may have a derating problem.