You are watching: Wire size for 100 amp sub panel 200 feet away
i have a 200 amp organization wondering what dimension wire i require for a 100 amp subpanel 220" away from the main service? likewise what dimension equip. Ground. I obtained with a 5% vd 1/0 cu and 3/0 at 3% drop. I likewise got 3/0 al at 5% and 300 in ~ 3%. This seems a small high. I was figuring to use the 5% drop and do a 3/0 al through a number 2al ground. Does this sound right??
The sub panel is 100 amp but what is the calculated load. If you are trying to find the wire dimension for 100 amps at 240 climate 2/0 alum. Would work. Because that copper you need #1.For the EGC climate look at T. 250.122
"If the doors the perception to be cleansed every little thing would appear to male as that is, Infinite. Wilhelm Blake
Remember over there is no NEC requirement to wire for VD. The is a an excellent idea and good design yet not required.BTW, I think the very same wire size are great for 208, 3 phase also.
"If the doors of perception to be cleansed everything would show up to guy as the is, Infinite. Wilhelm Blake
Its because that a garage in ~ my friends home there is no calc. Pack as that yet yet there will certainly prob be 15-20 lamp a compressor, mayb a 220v motor because that a lift. And also acouple outlets for grind wheel and also stuff like that yet nothing major. So 2/0 would be plenty for this?As for the egc execute I have to take into acount the length and bump it increase a pair sizes like the feeders?? Or simply go v the 100 amp size??
Its because that a garage at my friends house there is no calc. Pack as the yet however there will certainly prob be 15-20 lights a compressor, mayb a 220v motor for a lift. And also acouple outlets for grind wheel and stuff favor that yet nothing major. So 2/0 would certainly be plenty for this?As for the egc perform I have to take right into acount the length and also bump it increase a couple sizes choose the feeders?? Or simply go with the 100 amp size??
"If the doors that perception were cleansed whatever would show up to guy as the is, Infinite. William Blake
"If the doors the perception to be cleansed everything would appear to male as it is, Infinite. William Blake
"If the doors that perception were cleansed every little thing would show up to guy as that is, Infinite. William Blake
The more load, the an ext the voltage drop. Mike Holt has a calculator you deserve to download.http://www.mikeholt.com/technical.php?id=technicalvoltagedrop#3 THHN\THWN copper is good for 100 amps in ~ 75 degrees. With a load of 50amps in ~ 240volts at 200" with #3 copper Mike Holts voltage drop tool states you have 2.1% voltage drop.
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