A customer is renovating a loft above a barn to basically a small house. The barn is currently fed with 1AWG copper under a 125amp breaker from the main house which is about 400 ft away if not more. I did an optional load calculation which came out to 91amps. Should I be concerned with the load under a 125amp breaker and also voltage drop? Using a calculator by cerro wire i get the following. 400ft at 50 amps = 6.2v dropped at 120 and 240. I chose 50 because of load demand.
Voltage Drop to a barn
- Thread starter HuntNJ
- Start date
- Location
- New Jersey
- Occupation
- Journeyman Electrician
How hard is it to increase the conductor size?
ptonsparky
Tom
- Occupation
- EC - retired
I would warn them, but not be overly concerned.
If anything, the solar should help the voltage drop. At least while it’s producing.
ptonsparky
Tom
- Occupation
- EC - retired
I know just as much as you about solar, but I would think it would help considerably or negate it entirely during the day.