Clarifications re Fine-Stranded Cables [RE-wrenches]

Joel Davidson joeldavidson at earthlink.net
Sat Aug 28 09:00:12 PDT 2004


 

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If there were a list of people who have helped make PV a mainstream
technology, John Wiles' name would be on that list. He would sure have my
vote. John likes to deal in facts, has interesting opinions, has an open
mind and will consider differing opinions. Sure, there are lots of ways to
do some things. Sure, there are gray areas. Sure, some rules are bad. But
shooting the messenger because you disagree with the message, is not John's
style. Nor mine.
Joel Davidson
"The great outcry in politics is often the outs crying to get in."

----- Original Message ----- 
From: "Allan Sindelar" <allan at positiveenergysolar.com>
To: "New wrenches posting" <RE-wrenches at topica.com>
Sent: Friday, August 27, 2004 6:36 PM
Subject: Fw: Clarifications re Fine-Stranded Cables [RE-wrenches]




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> For the wrenches--just to clarify the record.
>
> It is unfortunate that the picture of the melted lug could not be posted.
>
> I am not from the nuke industry.
>
> I do not and have not received any money for beta testing Trace or
> any other products.
>
> I am not an employee of Sandia National Labs although I work closely
> with their PV group.  I am an employee of New Mexico State University
> and our funding comes from numerous sources including the US DOE.
>
> The DC 250 is a good piece of equipment (with tight wire bending
> clearances) and Trace/Xantrex is not responsible if the wrong
> conductors are used with it.
>
> I was one of the beta testers on Trace SW4024 (SN 2), but did not use
> it with the DC 250 enclosure. I used a 250-amp breaker in an
> enclosure from Rain Shadow Solar
>
> I publicized the availability of Cobra Flex THW years ago.  Ask Bob-O.
>
> My PV/NEC Suggested Practices Manual has for many years mentioned the
> use of flexible conductors such as the Cobra Flex THW, USE, and RHW
> cables.
>
> I proposed Section 690.74 in the Code that allows the use of Article
> 400 flexible cables for battery interconnections, although I
> personally don't see the need for them.
>
> Last week, I almost connected an excellent (expensive) piece of
> fine-stranded 2/0 AWG USE-2/RHW-2 to a 250 amp breaker, but decided,
> instead to install some of that $%$#@#! 2/0 THHN.
>
> I am glad to see that a few of the wrenches are thinking about and
> discussing this issue.  That is what I intended in the posting.
>
> Thanks.
>
>
> -- 
> If I can provide further information, please do not hesitate to call,
> e-mail or fax me.
>
> John
>
> John C. Wiles,  Program Manager
> Southwest Technology Development Institute, New Mexico State University
> 505-646-6105      505-646-3841 (FAX)   http://www.NMSU.Edu/~tdi
> SWTDI/NMSU
> Corner Research Drive and Sam Steel Way
> Box 30001/MSC 3 SOLAR
> Las Cruces, NM 88003-8001
>

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