SoundGuy wrote:
CA Traveler wrote:
If I saw 85 unloaded volts I would not plug in until the situation was fixed, boost transformer or not. Why invite trouble?
Most likely the utility is delivering in spec power which is 120V +-10 percent or a low of 108V.
I'm not so sure. That's what the spec dictates but I've run into so many situations where the voltage can't even make the minimal, most often during the hot summer months when the campground is full and it's power system (and the one feeding it) is loaded to the max with everyone running A/C. IAMICHABOD makes a good point (thanks BTW :B ) - if I continue to first check power with my Prime Products line meter dongle and do find a problem it certainly saves me the hassle of even bothering to drag out the main service cable and any necessary extensions - no sense if I'm not going to use it. :R My Progressive unit is calibrated to cut off incoming power to the trailer at 104 vac but personally I really start paying attention anytime it drops below ~ 110 vac because with my own load added that voltage could easily trigger my EMS's low cutoff voltage threshold of 104 vac. Just 85 vac is a non-starter as that's a sure sign the system is already stressed well beyond it's limits ... no way, no how would I ever consider plugging in at all. :E
For clarification I was referring to the voltage where the utility wiring ends. Usually when there is a low voltage problem its the CG wiring that's at fault.
One of the great features on the PI unit is that it displays a previous error code for low voltage, etc. This means that when returning to the rig a quick check on the inside monitor is a big clue to be more alert to the CG power.
