[RE-wrenches] Fwd:_Grounding_on_a_glacier??

Larry Crutcher, Starlight Solar larry at starlightsolar.com
Thu Jul 23 10:54:27 PDT 2009


I agree with Matt. Please don't pee on any equipment up there. The  
discharge could be hazardous both directions. 5000 volts right through  
the....well, I just hope you did not want to have any children after  
that.

Larry

On Jul 23, 2009, at 11:40 AM, Matt Tritt wrote:

> Don't try the last solution during an electrical storm.
>
> Matt T
>
> dan at foxfire-energy.com wrote:
>>
>> Boy -- seems I recall a similar thread a few years ago -- might  
>> have been grounding on sand? anyway, as I recall, the issue had to  
>> do with bonding, and keeping things at the same potential  
>> (discharging static?). I've heard of using bags of stuff over a  
>> copper grid / mesh in RF broadcast and the ski industry. Might be  
>> some kind of copper / salt stuff. I also recall someone suggesting  
>> peeing on a conventional ground electrode? Good luck. db
>>
>>
>> Dan Brown
>> President
>> Foxfire Energy Corp.
>> Renewable Energy Systems
>> (802)-483-2564
>> www.Foxfire-Energy.com
>> NABCEP #092907-44
>>
>> -------- Original Message --------
>> Subject: Re: [RE-wrenches] Fwd:_Grounding_on_a_glacier??
>> From: toddcory at finestplanet.com
>> Date: Wed, July 22, 2009 3:57 pm
>> To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
>>
>> NASA had a similar problem on the space station. They used (I think  
>> - research this) some kind of static discharge unit on the exterior  
>> of the station.
>>
>> Todd
>>
>>
>>
>> On Wednesday, July 22, 2009 6:13am, "jason pozner" <zzyyzzx11 at gmail.com 
>> > said:
>>
>>
>>
>>
>> Hey all,
>>
>> I am trying to figure out how to mitigate problems found with a 12v  
>> 500w simple DC system without a ground.  This system is at 14,500'  
>> on Denali (Mt McKinly).  We experienced a somewhat "festive"  
>> fireworks display on the 4th of July as static current from a storm  
>> seemed to travel through one of the antennae, and energized some  
>> radio equipment.  There is no grounded conductor, as there is no  
>> grounding electrode, as there is no ground to put it in.  The camp  
>> is situated on about 500' of glacial ice.  The conductivity of the  
>> ice is questionable, and to make the puzzle a bit more fun the camp  
>> is raised and taken down at the beginning and end of every climbing  
>> season (Apr-July), though the site is the same.  The loads are  
>> primarily for communications for search and rescue purposes, and   
>> reliability, and simplicity are paramount.  I have been exploring  
>> the avenue of a surge arrestorsThanks, and was wondering if any of  
>> you could make a recommendation on a product that can either be  
>> reset or cheap enough to have a few replacements on hand.   
>> Everything is flown in or carried to the site, and repair/ 
>> replacement needs to be simple enough so non-technical minded  
>> personnel can perform and re-set the system.
>>
>> Thanks,
>>
>> Jay Pozner
>> Nunatak Alternative Energy Solutions
>> Crested Butte, CO
>> (970) 349-3432
>> nunatakenergy at gmail.com
>>
>>
>>
>>
>>
>> -- 
>> Nunatak Alternative Energy Solutions
>> Jay Pozner and Lena Wilensky
>> (970)349-3432
>> www.nunatakenergy.com
>>
>> _______________________________________________
>> List sponsored by Home Power magazine
>>
>> List Address: RE-wrenches at lists.re-wrenches.org
>>
>> 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: RE-wrenches at lists.re-wrenches.org
>>
>> 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
>>
>>
>>
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com
>> Version: 8.5.392 / Virus Database: 270.13.25/2256 - Release Date:  
>> 07/23/09 06:02:00
>>
>>
> _______________________________________________
> List sponsored by Home Power magazine
>
> List Address: RE-wrenches at lists.re-wrenches.org
>
> 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
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20090723/584f04df/attachment-0004.html>


More information about the RE-wrenches mailing list