The 7 Gigohms makes no sense. Remember a megger has to have sufficient voltage to break down surface conditions at the point your making the connections. That's one of the reasons for the High Pot test. There is an inherent danger in high potting. Insulation can be compromised. In this regard...
Anytime heaters are used you don't want them to run wild. local thermostatic control should be secured to the cable-not just monitoring-but actual controlling thermostats for the heaters. In addition, a manually resetable high temperature cutout for the heaters should be in series with the...
I've noticed that most texts show a 180 phase difference on the the two legs derived from a wye-delta 3 phase transformer when this is used for residential service. Forgive me, but I have a real lapse here. The 3 phases are 120 degrees out of phase with each other. Therefore it seems such a 3...
Generally-well almost always-low power factors are caused by a heavy inductive load. In fact, that's why capacitors are used to nudge it closer to 1. If your home has electric heating, that would have no affect on the power factor and neither would any heating elements or incandensent lighting...
