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Old 10-07-2007, 03:36 PM   #1
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code for underground service


I tried to get an ans. at nyseg's web site but all it would refer me to is NEC sect XVI spec.1 . When I tried to look up code on underground service at NEC the web wants me to buy a book. Great but I need an ans. now! I'm building a home in the back of my field, 400 ft. straight from the main road. I have trenched 450' at 36" or better dept. put in a site for a transformer pad and trenched 210' to the entry site of the home. Questions, sch. 40 0r 80 under driveway at 3' depth and 2' depth also under parking pad? Direct burial cable for first 450' to transformer pad different than from transformer pad 210' to home? Direct burial cable, bury directly or put in sch. 40 for length of run not under roadways? I have direct bury cable from verizon and to be delivered heavy direct bury cable from cable tv, they recommend no pvc required. My neighbors recommend pvc for full length not just under road. Cost can get out of hand quick but don't want to install poorly. Recommendations and code for direct bury of elect. if possible. Don't mind doing work myself, just want to know what's required and can't seem to find it on line so far. Thanks Tom

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Old 10-09-2007, 01:01 PM   #2
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code for underground service


the Direct Bury Can't be n Conduit........... Why not post this in the Electrical board?

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Old 10-09-2007, 01:10 PM   #3
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code for underground service


Moved to Electrical!
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Old 10-09-2007, 01:13 PM   #4
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code for underground service


Assuming you pulled a permit for major work like this, can't your CEO answer these questions for you? I wouldn't do anything until I ran it by the CEO, to save time and money.

One tip I'd give you, is use conduit for cable and phone at least. If these need upgraded because of future developments, you can just pull new cable through if it's in conduit, but you'll have to do a huge excavation project if you direct bury the utilities.

Also, I'd lay an extra 3/4" conduit, and cap it at both ends, for whatever else you might need to run in the next 50 years. It'll probably cost an extra $100, and it could seriously avoid a headache in the future.
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Old 10-09-2007, 02:40 PM   #5
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code for underground service


Be careful, NYSEG can have some stringent rules. Like crimp only connections in the meter pan if I am not mistaken. Unless you have the $500 crimper you SOL.

An underground service is not as simple as some might think.

I myself ONLY do conduit ALL the way for all three; power, CATV and phone. For 450' I do 2" for each.

Where in NY are you?

EDIT - I am wrong about the crimps. I believe that is NYMO I am thinking about.
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Answers based on the 2008 & 2011 NEC.

Last edited by Speedy Petey; 10-09-2007 at 02:46 PM.
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Old 10-09-2007, 02:42 PM   #6
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code for underground service


If you Google "NYSEG" the first link is them.
I found the Installation Specs in about 30 seconds.

http://www.nyseg.com/MediaLibrary/2/...icesMeters.pdf
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Old 10-10-2007, 11:48 AM   #7
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code for underground service


Thanks to all for replying to my questions on direct burial. The NYSEG forman for my site contacted me and gave me a full brief on on both aspects. I need sch 80 under my roads, the 1500v line I will bury direct. As for phone and cable it also will be direct bury as per both site forman from the respective companys. It will all be in sand and I will do the backfill which I have made a screen to do. As for the extra 3/4 pvc I have been concedering but will decide prior to closing the ditch. Thanks again, the input helped me to ask the right questions.
Tom

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