Hypalon Cable [RE-wrenches]

Electrical Energy solar at eagle-access.net
Tue Jul 23 09:17:00 PDT 2002


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Hi Bill,

At 11:12 AM 7/22/2002 -0700, you wrote:
>Here is a testimonial I just received from a colleague on welding cable:
>
>"When I was installing new batteries in my system
>a few months ago, I found a 1-foot piece of unlisted Excellene
>welding cable that had the insulation cracked all the way through in
>numerous places

Can you produce the cable?

I am quite sure that nothing in the battery environment did that to the 
cable.  I personally soaked a piece to Excelene in battery acid for 5 
months, and there was no sign of degradation.  The information is 
documented in Home Power #80, "Welding Cable Acid Test."    Check out the 
data in the article, on my web site  http://eagle-access.net/solar/

A major myth about welding cable is that since it usually doesn't have a UL 
mark on the sheath, it is not UL listed.  Listed welding cable is not 
required to have a mark on the sheath.  The mark is on a tag on the reel, 
or a marking on the carton it comes in.

Excelene has several varieties of UL Listed welding cable.  Super Excelene 
Welding Cable is UL listed as chemical, grease and acid resistant and 
suitable of 600 volts and 90 degrees C.  It has a weather, ozone and 
sunlight resistant jacket.  It is abrasion resistant.  For details on UL 
listings of welding cables, see the Wrench Realities in Home Power 
#84,  "The Great Welding Cable Debate Continues."  This article is also on 
my web site at http://eagle-access.net/solar/.

Welding cable is a very appropriate material to use in battery boxes, and 
for connecting inverters and disconnects to batteries.   The only issue 
concerning it has to do with words on paper.  There is no technical reason 
not to use is.

It is widely sold and used for this purpose to this day.  Problems began 
when a well known employee of Sandia Labs, a Lockheed - Martin operation, 
decided to make an issue about welding cable.   Maybe we should ask, "why 
is the nuclear industry writing the solar code, and how sympathetic is this 
industry to the success of PV?"

Drake

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