Right way to assemble/run conduit?

[mknoblock]

My work experience has only been with residential inside wiring for railroad office buildings. I am running new electric service into a mobile home and have to pull 4/0-4/0-4/0-2/0 aluminum service cable through 2" PVC.

What's the smart way to do this? Assemble the entire conduit run first, then pull with lube? A typical application is 3 sweeps over about 25 feet with an LB at the end before rising into the service panel. I assume it's not a good idea to slip all the fittings over the cable and cement them with the cable inside... More than 2 sweeps makes this a tough pull .


thanks for any help...

 

[Dennis Alwon]

Why are you running service cable? I hope you are not talking about se cable but rather the quadplex mobile home wire. The nec requires the raceway be complete and then the conductors can be installed.

 

[ptonsparky]

Thinking you need 2 1/2” Schedule 80 coming up out of the ground with that combination.

Make that 2 1/2” all the way.

 

[ptonsparky]

2-4/0 Al,1-2/0 Al, with 1-4 THWN Cu would be my druthers.

 

[Cow]

Mobile home feeder would be my preference with these sizes, same as Tom said above:

https://www.wireandcableyourway.com/4-0-4-0-2-0-4-aluminum-mobile-home-feeder-cable.html

 

[ActionDave]

2-4/0 Al,1-2/0 Al, with 1-4 THWN Cu would be my druthers.

Mobile home feeder would be my preference with these sizes, same as Tom said above:

https://www.wireandcableyourway.com/4-0-4-0-2-0-4-aluminum-mobile-home-feeder-cable.html

I agree as well.

 

[Craigv]

Thinking you need 2 1/2” Schedule 80 coming up out of the ground with that combination.

Make that 2 1/2” all the way.

Agreed, way easier to pull, and especially if LB's are being used.

 

[tom baker]

NEC requires raceways to be complete before wiring is done or pulled in.
Run the conduit, backfill and then pull in.
Around here most mobiles are direct bury conductors, which is OK if use sand backfill. Our inspectors look for rocks, etc.