Kris, I worked traffic signal systems for years, we spliced conductors in pull boxes that fill with water on a regular regular basis. There are products available that are rated for waterproofing connections and the THWN-2 is rated for wet locations, but I don't know about submersed locations.
Max Balchowsky Design Engineer SEE Systems 1048 Irvine Ave Suite 217 Newport Beach, Ca. 92660 760-403-6810 ________________________________ From: Allan Sindelar <[email protected]> To: [email protected] Sent: Thu, June 9, 2011 6:48:32 PM Subject: Re: [RE-wrenches] Underwater wire Kris, I don't know a Code-compliant solution, having not faced this. But I'll suggest that you not attempt to glue and seal conduit to keep the conductors dry, as it won't work permanently. Use wet-rated wire, expecting any conduit to provide only physical protection. THWN is wet-rated - that's the W. You might consider submersible pump cable also. Allan Allan Sindelar [email protected] NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 6/9/2011 7:31 PM, Jesse Dahl wrote: There utility companies up here in northern MN bring power to islands all the time. The have cable underwater. Maybe contact Minnesota Power.... > >Jesse > >Sent from my iPhone > >On Jun 9, 2011, at 3:48 PM, Nathan Jones <[email protected]> wrote: > > >Kris, >>We work on boat docks on army corps of engineer lakes frequently and they >>have >>wire in direct contact with water everywhere. The lakes here are flood >>control >>and fluctuate a lot, like 50 feet in a given year. The marinas are dragging >>the >>feeder wires all over the place on rocky bottoms. We kill very few people >>with >>this insane practice but as the feeder wires age I believe the fatalities >>will >>increase. This is ground referenced service in fresh water with poor >>conducting >>capability in the water. Very dangerous yet allowed. >>Your situation would be quite safe IMHO as there would be no stressing of the >>delivery system. >>Nathan Jones >>Power Source Solar >>417-827-0738 >> >>On Thu Jun 9th, 2011 2:30 PM CDT Kristopher Schmid wrote: >> >> >>I have an installation that is a ground mount on a berm with a man-made pond >>>between the array and the BOS. The pond is about 4 feet deep. How would >>>you wrenches make this run? in weighted conduit with primer and glued >>>joints? use boring and go under? out of conduit with wire directly in the >>>water? >>> >>>Does code have anything to say about this specifically? >>> >>>Thanks as always. >>> >>>-- >>>Thanks, >>>Kris Schmid >>> >>>Legacy Solar, LLC >>>864 Clam Falls Trail >>>Frederic, WI 54837 >>>715-653-4295 >>>www.legacysolar.com [email protected] >_______________________________________________ >List sponsored by Home Power magazine > >List Address: [email protected] Options & settings: >http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >List-Archive: >http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out >participant >bios: www.members.re-wrenches.org > _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
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