answersLogoWhite

0

NEC recommends maximum allowable voltage drops not to exceed 3% on a branch circuit. For feeder/ branch combos the NEC recommends that the voltage shall not drop by more than 5% to the furthest outlet.

The main consideration that is enforced is NEC 250-122. You must compensate your grounding conductor when you increase in conductor size to compensate for voltage drops.

Direct bury or conduit:

#4/0 copper provides for 2.95%

#2/0 copper provides for 4.35%

#1/0 copper provides for 5.19%

Interestingly enough, using a separate calculator 3/0 copper with 3% voltage drop can be 780.5 feet long.

User Avatar

Wiki User

13y ago

Still curious? Ask our experts.

Chat with our AI personalities

ViviVivi
Your ride-or-die bestie who's seen you through every high and low.
Chat with Vivi
TaigaTaiga
Every great hero faces trials, and you—yes, YOU—are no exception!
Chat with Taiga
EzraEzra
Faith is not about having all the answers, but learning to ask the right questions.
Chat with Ezra

Add your answer:

Earn +20 pts
Q: What size electrical wire underground 230 volt 60 amp 800 feet?
Write your answer...
Submit
Still have questions?
magnify glass
imp