Hedges
I See Electromagnetic Fields!
- Joined
- Mar 28, 2020
- Messages
- 20,060
31.65 A Imp, probably 35A Isc.
35A x 1.56 = 54.6A design current.
Assuming 30C ambient and 90C wire, 8 awg for current-carrying conductors and for ground wire. If no more than 3 current-carrying conductors (2 for one string.) 8.7% loss at peak current, good enough for me.
If two strings, 4 current-carrying conductors in one conduit, derating will make 6 awg necessary.
Direct burial?
May not be code.
No do-over.
I'd lean toward conduit. Rather than PVC 18" deep I used steel 12" deep.
Whole rolls generally cheaper per foot than cut to length. Seems like 1000' for 2 conductors plus ground.
35A x 1.56 = 54.6A design current.
Assuming 30C ambient and 90C wire, 8 awg for current-carrying conductors and for ground wire. If no more than 3 current-carrying conductors (2 for one string.) 8.7% loss at peak current, good enough for me.
If two strings, 4 current-carrying conductors in one conduit, derating will make 6 awg necessary.
Direct burial?
May not be code.
No do-over.
I'd lean toward conduit. Rather than PVC 18" deep I used steel 12" deep.
Whole rolls generally cheaper per foot than cut to length. Seems like 1000' for 2 conductors plus ground.