eprosenx
Active Member
Nice! Thanks for posting the added info!
Perhaps they used 8 awg for the car charger (when 10 might have been OK but they upsized wisely due to distance). Then perhaps those other ones were 10awg (when normally 12 awg would be ok for a 20a circuit).
Looks like a good install.
I need to clarify a previous statement I made:
I said you might be able to use up to a 50a breaker on that 8 awg wire in conduit. That is true, but not in your situation since you have to down rate the wire because you have more than three current carrying conductors in a single conduit. You have four current carrying conductors in that conduit.
You might still be able to do a 40a circuit, but we would need to talk ambient temperatures as you can also have to derate wire due to hot temps.
Perhaps they used 8 awg for the car charger (when 10 might have been OK but they upsized wisely due to distance). Then perhaps those other ones were 10awg (when normally 12 awg would be ok for a 20a circuit).
Looks like a good install.
I need to clarify a previous statement I made:
I said you might be able to use up to a 50a breaker on that 8 awg wire in conduit. That is true, but not in your situation since you have to down rate the wire because you have more than three current carrying conductors in a single conduit. You have four current carrying conductors in that conduit.
You might still be able to do a 40a circuit, but we would need to talk ambient temperatures as you can also have to derate wire due to hot temps.
