SERVICE ENTRANCE

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OHELCON

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MY QUESTION; CAN USE TYPE 2 XLP 80MIL WIRE BE USED IN SERVICE MAST ABOVE GROUND FOR SERVICE ENTRANCE CABLE IF SO PLEASE GIVE ARTICLE IN THE NEC CODE
 
Re: SERVICE ENTRANCE

Cross linked polyethelene XLP XHHW-2 Pierre I will check that also, It would have to sunlight res. if to a drop also. Listing I had was medium voltage to 35000 volts Look at 328.12 05'NEC NO unless I missed something.
 
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Just found it RHW 2-XLP would be approved according to the specs but Does NEC allow it?
 
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I MAY HAVE ASK THE QUESTION THE WRONG WAY LET ME TRY TO CLARIFY. IN RESIDENTIAL SERVICE WOULD U S E TYPE -2 AS WE READ IN ARTICLE 338 OF THE NEC BE ACCEPTABALE TO A INSPECTOR IF THIS CABLE WOULD START AT THE WEATHER HEAD AND BE INSTALLED IN CONDUIT DOWN TO THE POCO METER BASE MOUNTED ON THE EXTERIOR OF THE STRUCTURE. NOTE---- THIS TYPE OF CABLE ALSO KNOWN AS {URD}

[ January 14, 2006, 12:37 PM: Message edited by: OHELCON ]
 
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Please turn off your caps, it is assumed you are yelling at us.

As far as your question, considering article 338 and the appropriate conduit article section xxx.22, what do you think the answer should be?

Roger
 
Re: SERVICE ENTRANCE

Originally posted by roger:
Please turn off your caps, it is assumed you are yelling at us.
Roger
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Maybe he is. :D

I use urd for services all the time. It is commonly referred to as 4/0 triplex 'round here.
 
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ohelcon, Now that the classification / desig. letters have changed in Your last reply USE,URD,Triplex YES!
 
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USE is underground type cable. It is permitted to be brought above grade for termination.
To use it as an overhead type installation from a weatherhead is not permitted.


From the UL White Book:

" Types USE and USE-2 -
Indicates cable for underground installation including direct burial in the earth. Cable in sizes 4/0 AWG and smaller and having all conductors insulated is suitable for all if the underground uses for which Type UF cable is permitted by the NEC. Type USE and USE-2 are not suitable for use in premises or aboveground except to terminate at the service equipment or metering equipment. "
 
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pierre, there was supposed to be a question mark behind Yes on my last reply sorry and thanks.I was getting confused going from XLP to URD/USE.
 
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escott,I dont even know any more "Iam going to watch the colts and steelers game and eat a "lotta Hot Wings"
 
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Pierre, in the first part of your reply you indicated that USE was not suitable for overhead service connection. Then, at the end of your reply, you posted just the opposite thus:

Type USE and USE-2 are not suitable for use in premises or aboveground except to terminate at the service equipment or metering equipment. " (italics added)

So the answer here is you can't use it unless you are terminating at a service or meter box? That was the original question, was it not?
 
Re: SERVICE ENTRANCE

KBsparky
This is an underground type installation wiring method. But I am not aware of any service or metering equipment that is installed underground, so the USE is permitted to be installed where it will come from the underground installation to terminate to service equipment above grade... which is usually a very short distance once it emerges from grade..
 
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I a getting confused, the original post by ohelcon is refering to an overhead to drop. Key words are "weatherhead and mast" or have we moved on to different topic?
 
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Originally posted by triphase:
I a getting confused, the original post by ohelcon is refering to an overhead to drop. Key words are "weatherhead and mast" or have we moved on to different topic?
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Here is what I think is going on.

OHELCON wants to, or has used USE cable which is underground cable for an overhead service.

Pierre pointed out that UL and the NEC only allow USE above ground to terminate to service or metering equipment.

I agree with Pierre, you can not run USE down from weather-head to a meter.
 
Re: SERVICE ENTRANCE

Pierre pointed out that UL and the NEC only allow USE above ground to terminate to service or metering equipment.

I agree with Pierre, you can not run USE down from weather-head to a meter.
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I agree with the first quote. However, the Code makes no distinction about whether one is installing services fed from overhead or underground, its use is permitted when terminated into metering equipment. I've seen many installations of overhead masts with USE or URD cables in them.
 
Re: SERVICE ENTRANCE

Originally posted by kbsparky:
However, the Code makes no distinction about whether one is installing services fed from overhead or underground, its use is permitted when terminated into metering equipment. I've seen many installations of overhead masts with USE or URD cables in them.
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338.10 Uses Permitted.
(A) Service-Entrance Conductors. Service-entrance cable used as service-entrance conductors shall be installed as required by Article 230.

Type USE used for service laterals shall be permitted to emerge from the ground outside at terminations in meter bases or other enclosures where protected in accordance with 300.5(D).
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I don't see that leaves any options.
 
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