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" <zzyyzz...@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
[mailto:nunatakene...@gmail.com] nunatakene...@gmail.com




-- 
Nunatak Alternative Energy Solutions
Jay Pozner and Lena Wilensky
(970)349-3432
[http://www.nunatakenergy.com] www.nunatakenergy.com

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