<html><body><span style="font-family:Verdana; color:#000000; font-size:10pt;">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 <br><br><br>
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-------- Original Message --------<br>
Subject: Re: [RE-wrenches] Fwd:_Grounding_on_a_glacier??<br>
From: toddcory@finestplanet.com<br>
Date: Wed, July 22, 2009 3:57 pm<br>
To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org><br>
<br>
<font size="4" face="arial">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.<br><br>Todd<br><br><br><br>On Wednesday, July 22, 2009 6:13am, "jason pozner" <zzyyzzx11@gmail.com> said:<br><br><br><br><div class="gmail_quote"><div class="gmail_quote"><br>Hey all,<br> <br> 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.<br> <br> Thanks,<br> <br> Jay Pozner<br> Nunatak Alternative Energy Solutions<br> Crested Butte, CO<br> (970) 349-3432<br> <a onclick="return true;if(window.location==top.location){Popup.composeWindow('pcompose.php?sendto=nunatakenergy%40gmail.com');}else{top.Popup.composeWindow('pcompose.php?sendto=nunatakenergy%40gmail.com');}; return false;" href="mailto:nunatakenergy@gmail.com" mce_href="mailto:nunatakenergy@gmail.com" target="_blank">nunatakenergy@gmail.com</a><br> <br> <br></div><br><br clear="all"><br>-- <br>Nunatak Alternative Energy Solutions<br>Jay Pozner and Lena Wilensky<br>(970)349-3432<br><a href="http://www.nunatakenergy.com" mce_href="http://www.nunatakenergy.com" target="_blank">www.nunatakenergy.com</a><br> </div><br> </font><hr>_______________________________________________<br>
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