Low power?
I have a 2003 DS 50amp It is currently plugged in to my 30amp server at my house. Im using 2×25ft 50amp cords.At first it's show 111volt turn on the A/c it drops 108 or so. What could be causing this...
Forum Discussion
For a nominal voltage of 120V, ANSI allows a range of 104.4 - 127.2 as acceptable. However, NEMA requires electrical equipment be able to operate within a range of 103.5 -126.5. Following either requirement, the OP is able to use his AC within a safe, specified range.
As an aside, the (one way) resistance of 50ft of #8AWG wire is 0.031 OHMS. The round trip resistance total would be .062 OHMS. Assuming a single A/C running at 14Amps, voltage drop is (E=IxR)=14x.062= 0.868V If both A/C units are turned on, total amps would be 28, or 28x.062=1.736V drop. With 111V in at the house, minus 1.736V drop, the voltage at the RV should be about 109V. OP claims 108V or about right.
Still within "code" range of 104.4V or 103.5V for acceptable operation.
As an aside, the (one way) resistance of 50ft of #8AWG wire is 0.031 OHMS. The round trip resistance total would be .062 OHMS. Assuming a single A/C running at 14Amps, voltage drop is (E=IxR)=14x.062= 0.868V If both A/C units are turned on, total amps would be 28, or 28x.062=1.736V drop. With 111V in at the house, minus 1.736V drop, the voltage at the RV should be about 109V. OP claims 108V or about right.
Still within "code" range of 104.4V or 103.5V for acceptable operation.
