[RE-wrenches] PV Wiring methods

[William Miller]

Bill:

 

There is no need to stuff MC4 cables into standard conduit.  You can either
slot the pipe using our easy method or install bulkhead type connectors.
The connectors are readily available.  I get them from PV Cables in Northern
California..

 

Wire routing problems and some solutions can be found on our web-site:

 

http://millersolar.com/MillerSolar/practices/PV_wiring/_PV_Wiring2.html

 

Since the industry won't provide wire management solutions, we are making
our own.  Questions:  Just write or call.

 

William Miller

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of frenergy
Sent: Thursday, November 14, 2013 7:46 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] PV Wiring methods

 

William, Bill....from another Bill,

 

        Two things:  For the rest of us (maybe it's just me?!) that's still
trying to figure out how (or why) to stuff a MC4 connector into conduit and
my hesitation in using SS wire ties for fear of the sharp edges cutting or
chaffing into cables, I'm open for advice. Any wire I use on the roof is
rated for that type of service and I have some off-grid systems that have
been in the sun for some 25 years where the wire still looks nearly new even
when flexing it to look for checking/cracks.  It seems the wire/insulation
can take it, thus it seems like the key to "wire management is to keep the
wire from moving and off the roof, secured to the racking, thus not
compromising the insulation. 

 

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