BAPLakebay
Member
- Location
- Lakebay WA
- Occupation
- Contractor
Hi Everyone! I appreciate your thoughts and recommendations, this is a great resource!
I'm installing a 400A/320A service. The meter base will feed 2 200A service rated exterior disconnects (one is an ATS) mounted on either side of the meter base. Without too much detail, it's not possible to route everything out of the disconnects into the house without crossing over incoming service lines. Here is what I am thinking:
Bring in the dual 200A service to the meter base the typical way in trench (in conduit from transformer, 3' of wire outside of conduit just before going vertical into 2-1/2" conduit into the meter base (done it a 100 times, great with utility and inspector).
Feed the dual 200A outputs from the meter base to the disconnects mounted to the left and right of the meter base. Pretty easy.
Question - my left disconnect "output" into the residence needs to cross over the incoming service to the meter. I am thinking of taking the output back into the trench (straight down) in conduit, then no conduit, crossing over top of the incoming service, then into conduit into the residence and panel. To keep the conductors in the trench from being in contact, I plan to have some 2-1/2" pieces of conduit (bell/couplers on each end) to isolate the conductors from the incoming service. A local friend (licensed electrician) said this is the best way to do it. Of course the conductors are direct burial rated.
I would appreciate any advice on crossing service conductors over other service conductors in a trench. The whole shebang will be covered with 6" of concrete (driveway edge).
Thanks a bunch!
I'm installing a 400A/320A service. The meter base will feed 2 200A service rated exterior disconnects (one is an ATS) mounted on either side of the meter base. Without too much detail, it's not possible to route everything out of the disconnects into the house without crossing over incoming service lines. Here is what I am thinking:
Bring in the dual 200A service to the meter base the typical way in trench (in conduit from transformer, 3' of wire outside of conduit just before going vertical into 2-1/2" conduit into the meter base (done it a 100 times, great with utility and inspector).
Feed the dual 200A outputs from the meter base to the disconnects mounted to the left and right of the meter base. Pretty easy.
Question - my left disconnect "output" into the residence needs to cross over the incoming service to the meter. I am thinking of taking the output back into the trench (straight down) in conduit, then no conduit, crossing over top of the incoming service, then into conduit into the residence and panel. To keep the conductors in the trench from being in contact, I plan to have some 2-1/2" pieces of conduit (bell/couplers on each end) to isolate the conductors from the incoming service. A local friend (licensed electrician) said this is the best way to do it. Of course the conductors are direct burial rated.
I would appreciate any advice on crossing service conductors over other service conductors in a trench. The whole shebang will be covered with 6" of concrete (driveway edge).
Thanks a bunch!
