MC PV closure [RE-wrenches]

[Graham Owen]

Bob,

I just read the MC installation manual again and you are right it 
doesn’t mention tinning as a requirement only that "it is advantageous 
to use tinned wires".

The only reason I had considered buying the MC tools was to stop 
panelizing in shop and go with "plug and play".  Since Shell Solar will 
stand behind GC-1000's installed as an earthsafe product (on a case by 
case basis) I will continue to install Shell earthsafe systems.  The new 
systems utilize SP140's with MC's pre-installed, (and SMA inverters) so 
I don’t need to purchase the tooling or connectors.

Graham


Bob Maynard, Energy Outfitters wrote:
> Graham,
> 
> We installed an MC Cable production line several months ago using the
> compressed air crimper.  I just reviewed all the literature provided 
> with
> this equipment and it states "using tinned wire may be advantageous".  
> That
> doesn't sound like a requirement to me but I will dive into this more
> tomorrow and keep you and the list updated.  The MC hand tools are a 
> huge
> investment and several dealers are buying our ready made cables.
> 
> Regards,
> Bob Maynard
> Energy Outfitters
> 800-GO-SOLAR
> 
> -----Original Message-----
> From: Graham Owen [mailto:graham at solarexpert.com]
> Sent: Wednesday, November 20, 2002 4:26 PM
> To: RE-wrenches at topica.com
> Subject: RE: MC PV closure [RE-wrenches]
> 
> 
> Bob,
> 
> It certainly would be nice to only install UL listed components,
> especially ones that have current passing through the center of them.  I
> will most likely use the MC clamps to keep the kid in the future who is
> pulling a ball or other object out from under an array from also pulling
> apart a connection.  I had been using flex conduit between modules, but
> that is not UL compliant.  Short of putting EMT with a path to ground on
> each section between modules, I don’t know of a better way?
> 
> I had been thinking about purchasing the tools to make my own MC's and
> the instructions state that the wire must be tinned.  I have samples
> from other sources, which I pulled appart, and the wire is not tinned.
> This is probably not UL compliant?
> 
> Graham
> 
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