DerrickM
Member
- Location
- Billings, Montana, USA
Hi,
I know that the utility required disconnect is not required in all states and not by all utilities. But it is where I live. And I also know that it's not NEC required.
My question is this:
I am running a 3 phase 480 volt sub service to an outside panelboard dedicated to solar pv circuits from Enphase micro inverters. Before I head down the long hallway to the outside of the building, I need to first come out of the 480v supply panel and head in the opposite direction so I can mount a disconnect within 10' of the utility supply meter. This will require me to run my #2 conductors and 1 1/4 pipe to this disconnect and all the way back to where I started, thus adding a lot of additional wire, pipe and man hours.
Has anyone seen or done this type of thing but instead of this way, could I use my supply breaker as a shunt trip and wire the utility disconnect to it that way?
I would still meet the requirements of the utility having a visable, electrical load break, labeled disconnect within 10' of their meter, and save $1000's on wire, pipe and man hours.
Would this shunt trip situation not do the same thing as the line voltage disconnect?
Any thoughts
Thanks,
Derrick
I know that the utility required disconnect is not required in all states and not by all utilities. But it is where I live. And I also know that it's not NEC required.
My question is this:
I am running a 3 phase 480 volt sub service to an outside panelboard dedicated to solar pv circuits from Enphase micro inverters. Before I head down the long hallway to the outside of the building, I need to first come out of the 480v supply panel and head in the opposite direction so I can mount a disconnect within 10' of the utility supply meter. This will require me to run my #2 conductors and 1 1/4 pipe to this disconnect and all the way back to where I started, thus adding a lot of additional wire, pipe and man hours.
Has anyone seen or done this type of thing but instead of this way, could I use my supply breaker as a shunt trip and wire the utility disconnect to it that way?
I would still meet the requirements of the utility having a visable, electrical load break, labeled disconnect within 10' of their meter, and save $1000's on wire, pipe and man hours.
Would this shunt trip situation not do the same thing as the line voltage disconnect?
Any thoughts
Thanks,
Derrick