PVC to EMT

[wwhitney]

So I didn't put this in the OP, but I need to transition from PVC to metal raceway in a solar PV DC circuit where Art 690 requires metal raceway when run inside buildings. So trying to transition as soon as the PVC comes through the drywall, so there is little to no PVC visible.

Surely for 690.31(D) you need to transition on the outside face of the exterior wall, not the inside face? Unless the exception for PVHCS applies?

Cheers, Wayne

 

[solarken]

Surely for 690.31(D) you need to transition on the outside face of the exterior wall, not the inside face? Unless the exception for PVHCS applies?

Cheers, Wayne

I am not sure that is clear. If the intent is to protect emergency personnel during a fire from contacting energized DC, then transitioning right where it penetrates the fire barrier, i.e. the drywall would achieve that.

 

[wwhitney]

I am not sure that is clear. If the intent is to protect emergency personnel during a fire from contacting energized DC, then transitioning right where it penetrates the fire barrier, i.e. the drywall would achieve that.

But a corollary of that would be that you could run PVC inside the wall as far as you like, which I would think is clearly "inside the building".

Cheers, Wayne

 

[don_resqcapt19]

I know there are new restrictions to have Listed staples and other support methods, but I didn't think they included the threads on nuts and bolts.

I thought we were talking about the threads on the connector...no idea nuts and bolts had entered the conversation

But if listed materials are not required isn't it up to the AHJ.

All wiring methods require the use of listed wiring methods and associated fittings.
.