[RE-wrenches] battery cables

[Bob-O Schultze]

Jeff,
This is a pet peeve of mine. Welding cable is designed to live it's  
whole life surrounded by hot sparks and dragged across cement floors,  
yet it is not "listed" for use in a home. That pretty much means that  
the manufacturer hasn't spent the dough to do the UL testing. Most of  
us use a wire manufactured by Cobra Wire & Cable called CobraFlex  
which is listed. It comes in 2/0 and 4/0 sizes and others.
I'm a little concerned that you list yourself as a "Lead Installer"  
and don't know this. Never done a permitted battery-based system before?
Bob-O
On Mar 11, 2009, at 6:59 AM, Jeff Blick wrote:

Hi wrenches,
I have been looking through the codebook for guidance in selecting  
battery cables for a large UPS system.  The code doesn’t appear to  
have much to say about the actual type of wire used.  My electrical  
supplier is suggesting welding cable, but I feel like I read somewhere  
that welding cable is not appropriate.  I know it needs to be 4/0 or  
larger, just wondering what type of wire others are using for this  
application.  Thanks!

Jeff Blick
Lead PV Installer
Sunlight Solar Energy, Inc.
direct: 541-306-4196
fax: 541-322-1911
jeff.blick at sunlightsolar.com
www.sunlightsolar.com
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