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#169778 - 10/15/07 12:31 PM Large RV park Feeders Triplex underground
Yoopersup Offline
Member

Registered: 03/04/03
Posts: 826
Loc: 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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#169780 - 10/15/07 01:02 PM Re: Large RV park Feeders Triplex underground [Re: Yoopersup]
George Little Offline
Member

Registered: 01/18/04
Posts: 1492
Loc: 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.
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George Little

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#169781 - 10/15/07 01:56 PM Re: Large RV park Feeders Triplex underground [Re: George Little]
gfretwell Offline

Member

Registered: 07/20/04
Posts: 9012
Loc: Estero,Fl,usa
Same question. Is the neutral insulated?
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Greg Fretwell

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#169838 - 10/17/07 04:53 PM Re: Large RV park Feeders Triplex underground [Re: Yoopersup]
Yoopersup Offline
Member

Registered: 03/04/03
Posts: 826
Loc: 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????

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#169844 - 10/17/07 06:32 PM Re: Large RV park Feeders Triplex underground [Re: Yoopersup]
gfretwell Offline

Member

Registered: 07/20/04
Posts: 9012
Loc: Estero,Fl,usa
We did this a month ago. What is the insulation type ... USE? Other "wet" type?
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#169845 - 10/17/07 06:42 PM Re: Large RV park Feeders Triplex underground [Re: gfretwell]
Yoopersup Offline
Member

Registered: 03/04/03
Posts: 826
Loc: Michigan
What if its direct burial triplex??

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