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You are watching: What size wire for 200 amp service 100 feet away

i have a 200 amp organization wondering what dimension wire i need for a 100 amp subpanel 220" away from the key service? also what dimension equip. Ground. I obtained with a 5% vd 1/0 cu and 3/0 at 3% drop. I also got 3/0 al at 5% and 300 at 3%. This appears a little high. I was figuring to usage the 5% drop and do a 3/0 al v a number 2al ground. Does this sound right??
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The below panel is 100 amp yet what is the calculation load. If friend are searching for the wire size for 100 amps in ~ 240 then 2/0 alum. Would certainly work. Because that copper you require #1.For the EGC climate look at T. 250.122
"If the doors the perception were cleansed every little thing would show up to guy as that is, Infinite. William Blake
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Remember there is no NEC necessity to cable for VD. That is a an excellent idea and good design however not required.BTW, I think the very same wire sizes are good for 208, 3 phase also.
"If the doors that perception were cleansed everything would show up to guy as it is, Infinite. William Blake
Its for a garage at my friends house there is no calc. Fill as of yet however there will prob it is in 15-20 lights a compressor, mayb a 220v motor for a lift. And acouple outlets for grind wheel and stuff prefer that however nothing major. So 2/0 would be plenty because that this?As because that the egc execute I have to take right into acount the length and also bump it increase a pair sizes prefer the feeders?? Or just go v the 100 amp size??
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Its for a garage at my friends residence there is no calc. Fill as of yet however there will prob be 15-20 lamp a compressor, mayb a 220v motor for a lift. And also acouple outlets for grind wheel and also stuff favor that yet nothing major. Therefore 2/0 would certainly be plenty because that this?As because that the egc carry out I need to take right into acount the length and also bump it increase a couple sizes prefer the feeders?? Or just go with the 100 amp size??
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"If the doors the perception to be cleansed whatever would appear to guy as the is, Infinite. Wilhelm Blake
"If the doors the perception were cleansed everything would show up to man as that is, Infinite. William Blake
"If the doors that perception were cleansed every little thing would appear to male as the is, Infinite. William Blake
The an ext load, the much more 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 an excellent for 100 amps at 75 degrees. With a fill of 50amps at 240volts at 200" with #3 copper Mike Holts voltage drop tool states you have 2.1% voltage drop.
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