Are my calculations correct? 100a pool panel 200' away?

[JohnDS]

1) Pool panel 200' away from main panel. Using #3awg thhn in pvc:
Cmvd=2kil

Vd=2kil/cm
Vd=(2)(12.9)(100)(200)/52,633
Vd= 9.8037353

Voltage drop exceeds 3% so #2awg is to be used?

2) conduit fill.....1 1/4 would be the minimum size pvc for 4 #2 thhn?

 

[Dennis Alwon]

So yes the calculations look fine but are you really going to have 100 amps on the panel? If you think you need it then yes use those numbers but if the load is 50 amps then just use 50 amps.

 

[JohnDS]

I was going with the full 100a because I figured it would make it 100% usable in case circuits were added down the road.

Was I correct in thinking a 3% voltage drop was permissible? I was doing some reading before you had answered and if this pool panel is considered a feeder, wouldnt it be a permissible 2% voltage drop?

 

[JohnDS]

Actually I recalculated and im getting #1 for 3% max voltage drop, and 2/0 for a 2% voltage drop? What am I doing wrong?

 

[kingpb]

Assume your talking about 240V, single phase, 100A at end of run, you need #1 AWG to keep it at less than 3%.