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Large RV park Feeders Triplex underground #169778
10/15/07 02:31 PM
10/15/07 02:31 PM
Y
Yoopersup  Offline OP
Member
Joined: Mar 2003
Posts: 849
Michigan
Can 3 4/0 Alum. conductor triplex underground rated be in stalled in PVC conduit with a # 4 copper ground wire. If it meets 40 % fill single phase 120/240 volt. I'd say so want other views on this.?

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Re: Large RV park Feeders Triplex underground [Re: Yoopersup] #169780
10/15/07 03:02 PM
10/15/07 03:02 PM
G
George Little  Offline
Member
Joined: Jan 2004
Posts: 1,489
Michigan USA
I don't see a problem Ernie as I understand your discription. I don't know of anything in the code that would prohibit using a copper equipment grounding conductor with an aluminum feeder. and I'm assuming that the triplex consist of all insulated conductors. See Ya in Troy in December.


George Little
Re: Large RV park Feeders Triplex underground [Re: George Little] #169781
10/15/07 03:56 PM
10/15/07 03:56 PM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,301
Estero,Fl,usa
Same question. Is the neutral insulated?


Greg Fretwell
Re: Large RV park Feeders Triplex underground [Re: Yoopersup] #169838
10/17/07 06:53 PM
10/17/07 06:53 PM
Y
Yoopersup  Offline OP
Member
Joined: Mar 2003
Posts: 849
Michigan
Ground not a Problem , Neutrals insulated not a problem, I was curious about the Tri-Plex being in conduit underground?? Conductor fill for one thing I think would be different? Is tri-plex rated to be installed in conduit?? underground . I;ve also seen it done but wondered????

Re: Large RV park Feeders Triplex underground [Re: Yoopersup] #169844
10/17/07 08:32 PM
10/17/07 08:32 PM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,301
Estero,Fl,usa
We did this a month ago. What is the insulation type ... USE? Other "wet" type?


Greg Fretwell
Re: Large RV park Feeders Triplex underground [Re: gfretwell] #169845
10/17/07 08:42 PM
10/17/07 08:42 PM
Y
Yoopersup  Offline OP
Member
Joined: Mar 2003
Posts: 849
Michigan
What if its direct burial triplex??


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