Re: [RE-wrenches] utility EDS signage

Phil, NEC 690.17 says "Where all terminals of the disconnecting means may be energized..." It would take a pretty rare malfunction of a grid connected inverter to energize the load terminals of the utility disconnect. But we have some AHJs that require this label on every ac disconnect, all

Re: [RE-wrenches] utility EDS signage

Hi Phil, Four out of the six of utilities that we deal with here in Arizona require an external AC disconnect, and yes, we do install the plaque. About half of the utilities explicitly require it, the other half don't. I agree that is a confusing label, possibly leading service personnel to

[RE-wrenches] utility EDS signage

Wrenches, Our utilities require an external AC disconnect between the inverter and the point of interconnection, located next to the meter. In the past, we have marked this switch with the language in 690.17 (although no AHJ or utility has required it). Because we generally argue against the nec