Hypalon Cable [RE-wrenches]

EH Roy ehroy at solar-works.com
Thu Jul 18 14:22:22 PDT 2002


Drake,

If it can save the PV industry significant money, wouldn't it be more
effective to try to get welding cable listed by UL for use in PV systems
than to try to incorporate such an exception into the NEC?

E. H. Roy
Solar Works, Inc.
64 Main Street
Montpelier, VT 05602
1-800-339-7804 ext. 306
ehroy at solar-works.com

-----Original Message-----
From: Electrical Energy [mailto:solar at eagle-access.net]
Sent: Thursday, July 18, 2002 1:26 PM
To: RE-wrenches at topica.com
Subject: RE: Hypalon Cable [RE-wrenches]

Hi Bill,

Thanks for your input.  I've been working out of town, and am too busy now
to give this thread the attention it needs.  I am aware of the listing
issue.  To me this seems a prime example of an institutional barrier,
making PV more expensive and difficult than it needs to be.

Welding cable is not only used by the Telcomm industry for battery
applications, but is used for commercial battery jumpers sold by Hensley
Battery and others.  It is still sold by many national PV distributors for
battery and inverter connections, with thousands of installed systems, many
of which have been up and running for decades.

It is proven to work in the field.  It is the most available and
appropriate material to use.  Yet we are  forbidden to use it in Colorado
because a big issue was made regarding the listing glitch several years
back.  As I understand it, not all states forbid its use.

IMHO, if we want to help PV, we should try to make rules to fit the
physical realities, not require the technology fit existing, inappropriate
rulings.

I am petitioning the NEC to make a change to allow welding cable.  If
anyone wants to see the current draft of the proposal, contact me off the
list, and I will send it to you as an attachment.  If anyone wants add
their signature to the proposal, that would be great.  Feedback is welcome.

Best,

Drake



At 09:45 AM 7/16/2002 -0700, you wrote:
>Drake and Frank,
>
>Drake, I know you have had long debates on this subject so I am not trying
>to start a debate here. The underlying issue with listing of anything is
>"what is it listed for." There are thousands of examples of equipment or
>materials that are listed for one use and work well in many other uses.
When
>a product is listed for a specific purpose (and no other purposes), it's
>listing only applies to that use. A great case in point are PV inverters.
>You can get them to do many other things if you are creative, but many of
>these inverters are only listed for PV systems--nothing else. A welding
>cable, with no other listing marks is only good for welding. However, many
>cables may have multiple listings and be listed for conduit, direct burial,
>sunlight resistant, acid resistant, and the list goes on. Ideally we would
>have listed battery cables, but the best thing we can do is find cables
that
>are listed for the purposes and locations they are to be used (wet
>locations, acid-resistant, proper temperatures, installable in conduit,
>whatever is needed). Just because it has a UL on it does not mean it works
>for batteries. It may be UL listed to beat your dog (hey, it could happen).
>
>Bill.
>
>
>-----Original Message-----
>From: Electrical Energy [mailto:solar at eagle-access.net]
>Sent: Monday, July 15, 2002 8:58 PM
>To: RE-wrenches at topica.com
>Subject: Re: Hypalon Cable [RE-wrenches]
>
>
>Hypalon cable is one of the types that is acceptable to the NEC.  It is
>rated RHH -RHW - USE.  It is finely stranded.  It isn't welding cable.
>
>A lot of welding cable is UL listed.  I have a request for new wording to
>the NEC to  accept UL listed welding cable.
>
>Drake
>
>
>At 09:27 PM 7/15/2002 -0400, you wrote:
> >In a message dated 7/15/2002 6:03:21 PM Pacific Daylight Time,
> >mmangelsdorf at hei.com writes:
> >
> >
> > > --Whoa nellie...I thought that using welding cable for batteries was a
> > > hokie-pokie no-no.  I'd recommend using Cobra Cable X-flex.  It's
> > UL-listed
> > > to 105 degrees C, is super flexible and the best cable to work with by
>far.
> > >
> > >
> >
> >As far as I know any cable that is "UL" listed is okay for batteries, but
I
> >may be wrong!
> >SUNcerely,
> >Frank Fowler
> >Crystal Pines Alternative Energy
> >4408 Pine Cluster Ln. Yankee Hill, CA. 95965
> >Tel: 530-532-1972
> >Fax: 530-532-1359
> >www.solarenergy-alt.com
> >"Living with the products we market, install, & service"
> >
> >--
> >[Non-text portions of this message have been removed]
> >
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