[RE-wrenches] Underwater wire

[Max Balchowsky]

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 <allan at positiveenergysolar.com>
To: re-wrenches at lists.re-wrenches.org
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
Allan at positiveenergysolar.com
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 <solardude97 at yahoo.com> 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 solman at legacysolar.com 
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