Hypalon Cable [RE-wrenches]

[Bill Brooks]

Drake,

If Super Excelene is listed for the environments you say it is, then use it.
Make sure you have a copy of listing information on hand if the inspector
asks for it. No need for an exception in the code.

Bill.


-----Original Message-----
From: Electrical Energy [mailto:solar at eagle-access.net]
Sent: Tuesday, July 23, 2002 9:17 AM
To: RE-wrenches at topica.com
Subject: RE: Hypalon Cable [RE-wrenches]


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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