Bonding underground conduits

[Brandon Loyd]

If metal conduit from underground feeds a metal enclosure, is it required for all metal conduits coming from underground be bonded to the metal enclosure?

 

[Smart $]

If metal conduit from underground feeds a metal enclosure, is it required for all metal conduits coming from underground be bonded to the metal enclosure?

The enclosure being metal is irrelevant. The stub ups are required to be bonded.

 

[chris kennedy]

As per 250.84 or 250.86.

 

[Brandon Loyd]

Are you sure these code sections apply? It looks like these code sections are for armored cable. If the conduits are suppose to be bonded to the EGC, which doesn't exist, wouldn't the underground metal conduits be acting as the EGC and thus need to be bonded together and to the metal enclosure?

 

[raider1]

Are you sure these code sections apply? It looks like these code sections are for armored cable. If the conduits are suppose to be bonded to the EGC, which doesn't exist, wouldn't the underground metal conduits be acting as the EGC and thus need to be bonded together and to the metal enclosure?

Yes, 250.86 would apply to non-service raceways.

Chris

 

[infinity]

If these are service raceways then bonding is only required on one end.