Cow
Senior Member
- Location
- Eastern Oregon
- Occupation
- Electrician
I'm having a little trouble calculating conduit fill for a muliticonductor cable without an overall outer sheath. I see three possible options:
1. Calculate it as a single cable. Take the overall O.D. of the cable to determine area. Conduit fill is limited to 53%.
2. Calculate it as individual conductors as usual. Conduit fill is limited to 40%.
3. Per the wire rep, calculate it like #2, but conduit fill is limited to 53%.
What brought this on, is I'm trying to stuff 3 phase 200 amp wire with a ground into an 1.5" pvc conduit. I haven't had any luck finding a wire manufacturer that makes compact copper yet either.
1. Calculate it as a single cable. Take the overall O.D. of the cable to determine area. Conduit fill is limited to 53%.
2. Calculate it as individual conductors as usual. Conduit fill is limited to 40%.
3. Per the wire rep, calculate it like #2, but conduit fill is limited to 53%.
What brought this on, is I'm trying to stuff 3 phase 200 amp wire with a ground into an 1.5" pvc conduit. I haven't had any luck finding a wire manufacturer that makes compact copper yet either.