MC connectors, warranties and PV system life [RE-wrenches]

Tom Lane, Energy Conservation Services tom at ecs-solar.com
Sat Feb 8 06:58:30 PST 2003


nice looking system -- I suggest next time using a direct power and water
adjustable rack - it is easier to install and will allow for 6 tilts a year
that take 2 minutes for one person to adjust --see homepower # 88 page 89
gator tom
----- Original Message -----
From: "Nick Nicholas, APS" <APS at SBCGLOBAL.NET>
To: <RE-wrenches at topica.com>
Sent: Wednesday, February 05, 2003 1:00 PM
Subject: Re: MC connectors, warranties and PV system life [RE-wrenches]


> Hi Phil:
>     After referencing the Del City Catalog, I noticed that the aluminum
wire
> loom clamps need to be bolted or screwed to the module frames.  This seems
> like a strong, long lasting solution for wire management, however, it can
> not be as quick as the steel clips being discussed.  A three Kw Array can
be
> clipped up in 15 minutes, and most of the wiring is not visible, because
it
> is hidden within the module frames.
>     I have photos of a systems utilizing this method of wire management.
> The photos are of systems utilizing the Unirac- Large Array Mounting
System
> (U-LA.)  All of our prepackaged installed systems utilize either this
> mounting system or a roof mount system.
>  http://www.alternativepowersystems.com/portfolio_f6.html
>
> Nick Nicholas
> Alternative Power Systems
> www.alternativepowersystems.com
> aps at sbcglobal.net
> 135 Colfax Ave.
> Grass Valley, CA 95945
> (530) 274-0588 phone
> (530) 274-0589 fax
> ----- Original Message -----
> From: "Phil Undercuffler, Positive Energy" <phil at positiveenergysolar.com>
> To: <RE-wrenches at topica.com>
> Sent: Wednesday, February 05, 2003 8:37 AM
> Subject: Re: MC connectors, warranties and PV system life [RE-wrenches]
>
>
> >
> > ----- Original Message -----
> > From: "Doug Pratt" <dpratt at pacific.net>
> > Subject: RE: MC connectors, warranties and PV system life [RE-wrenches]
> >
> >
> > > Someone mentioned that Energy Outfitters and others are offering a
> > > "clip" to support and retain the MC cables.
> >
> > We've used neoprene jacketed aluminum wire loom clamps for the past year
> > with good success.  Vendor is Del City, (800) 654-4757.  They also have
a
> > stainless steel version, if you need.  Their part #2808  (2008-9 in
> > stainless) is the perfect size to clamp an MC connector tight.
$12.30/100
> > in aluminum, $27.21 in stainless.
> >
> > (A UV-resistant zip tie that's
> > > going to last 20 years? If you believe that, I've got a bridge to sell
> > > you...)
> >
> > I've gone back to systems after 3 years in the New Mexico sun and seen
> black
> > "UV-resistant" zip ties snap when touched.  I've also seen the black
> plastic
> > locknuts that ship with BP module cable glands split into quarters on
the
> > same array.
> >
> > Mother Nature always wins.
> >
> > - - - -
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> >
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> >
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> >
> > Hosted by Home Power magazine
> >
> > Moderator: michael.welch at homepower.com
> >
>
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>
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