I have an EMT conduit inside the house that goes to a pool building. Where it leaves the house, it transitions to PVC conduit. Inside this conduit is a 6-3 feeder with a #8 insulated equipment grounding conductor.
The conduit is fastened to the subpanel from which it originates and is bonded there with a bonding bushing. Is there any requirement to additionally bond the last EMT piece where the transition to PVC occurs? If so, how do I do this?
Bonding rules for conduit stubs seem kind of weird, and this may not be a stub since one end is connected to a panel. Continuous runs of bolted EMT can serve as a grounding path, and you must hope that a coupling doesn't come loose. But why must isolated sections be bonded at both ends? Or don't they have to be....