Service entrance

[Tswiger]

When you have a cable tap box supplied by a pad mounted transformer for multiple tenant services why would you install a bonding jumper from the grounded conductor to the grounding conductor. It is my understanding that bonding is done at the first means of disconnect. This is for a 480/277 service.

 

[infinity]

There should not be an EGC if you are on the line side of the service disconnect. All metal parts are bonded directly to the neutral.

 

[LarryFine]

It is my understanding that bonding is done at the first means of disconnect.

At or before, but never after,.

 

[don_resqcapt19]

However the tap box requires bonding and the code permits it to either be bonded directly to the neutral in the tap box, or to be bonded to a supply side bonding jumper run back to the tap box from the service equipment, but there would be no connection of the neutral to a grounding or bonding conductor of the wire type at the tap box.