I never understood how there can be a difference between the two in most of our scenarios we are on a dedicated breaker. the ground and neutral terminate to the same place usually on 12/2wg or 10/2wg and the only thing on the circuit is our APC. the insulated neutral and the copper ground are the same wire in romex arent they? just one has insulation?
On Thu, Feb 16, 2017 at 10:19 AM, Nate Burke <[email protected]> wrote: > I think I read the error occurs if there is >5v difference between neutral > and ground. The Strange thing is that it's happening at the same time > every day. > > On 2/16/2017 10:13 AM, That One Guy /sarcasm wrote: > > good luck. APC has a little guide for troubleshooting them, but never much > detail. we have a couple sites that always have it, never had any impact. I > suspect its overloaded ground. Maybe the smart meter shunts voltage to > ground for some safety verification or something like that, or more likely > to identify utility theft since all those smart meters are about is profit > > On Thu, Feb 16, 2017 at 10:08 AM, Nate Burke <[email protected]> wrote: > >> I have a UPS that I recently installed pulling a 'Site Wiring Fault' for >> 20 seconds a few times a day, at the exact same time daily. There are no >> other local electrical device at the location that I can find turning on or >> off at the same time, or that would have this kind of regularity. >> >> There is a smart meter at the location, could the smart meter be doing >> some polling that would cause this? I have another Identical UPS off the >> same utility HV line, but different transformer and meter, and it does not >> have any errors. >> >> Has anyone seen these before and been able to track down a cause? On the >> APC forums, one reply was to simply disable the alert, saying otherwise >> you'll descend down a never ending rabbit hole of diagnosing and tweaking >> your electrical plant. >> >> Nate >> > > > > -- > If you only see yourself as part of the team but you don't see your team > as part of yourself you have already failed as part of the team. > > > -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team.
