pianotuna wrote:
Hi SoundGuy,
Let's pretend I'm going to plug in my RV at a 30 amp site.
First step I take a dogbone adapter that is 30 to 15 and plug it in.
Next step I plug a kill-a-watt meter into the dog bone 15 amp outlet. I note the voltage.
Next step I plug a polarity checker into the kill-a-watt.
Next step I unplug the polarity checker and plug in a 1500 watt heater.
Next step I turn on the heater full blast and check for voltage drop (I.E. Voltage drop under load). I note the voltage.
Finally, if everything looks good, I'll plug in my RV.
So instead of
"I always check the pedestal under load before I plug in" you really meant to say
"I always check the pedestal under load before I plug in the trailer". Now that makes sense ... but that sure is a lot of rigamarole to go through, especially loading the source supply with an electric heater. I merely check the pedestal with my dongle ...
... then mentally subtract 5,6, 7 volts depending on the length of main service cable I know I'll have to use to reach the trailer and knowing that by managing my power draw I can always limit my total draw to no more than this amount of voltage drop. If that puts me below 110 vac that's when I really pay more attention to my Progressive EMS's voltage / current display.
