[RE-wrenches] The Demise of WEEB

[benn kilburn]

Hopefully any crew installing PV, and familiar with this debate (which they should be) can easily distinguish between the GBL-4 and the GBL-4DBT.  The weight difference is quite noticeable.  If it feels light for its size, it's aluminum, dont use it!!!  If it has some distinct weight to it, then it's most likely the copper DBT, giv'er!
So what other non-conductive materials are out there that could help resolve this frame bonding issue?  Sunteck's BIPV SolarBlend module uses a polycarbonate frame which requires no bonding.  Do any of you have any experiences with these? How were they to handle, install?  Do they offer any hope or support for non-metallic module frames?
benn
DayStar Renewable Energy Inc. benn at daystarsolar.ca780-906-7807 HAVE A SUNNY DAYFrom: ray at solarray.com
Date: Mon, 13 Sep 2010 11:14:36 -0600
To: re-wrenches at lists.re-wrenches.org
Subject: Re: [RE-wrenches] The Demise of WEEB



I didn't do the original  install, and I couldn't ID the lug because of the corrosion.I believe everyone is correct that this isn't the DBT rated lug, though.Another reason to use the WEEB:  a crew can't accidentally install the wrong (but almost identical, when new) lug. I'm sure the non-DBT lugs got mixed together in a bin at some point. 

R. Waltersray at solarray.comSolar Engineer


On Sep 12, 2010, at 5:41 PM, Jamie Johnson wrote:
 That looks like a tin plated aluminum lug (aluminum corrosion) with a plated steel screw (rusted screw).......
 
Here is an explanation of the differences between both ILSCO GBL 4 lugs from John Wiles Code Corner in Homepower issue 102

 
"The Ilsco GBL-4DBT is a lay-in lug 
made of solid copper, which is then tin-plated. It has a
stainless steel screw to hold the wire. The lug accepts a #14
(2 mm2) to #4 (21 mm2) copper conductor. It is listed for
direct burial (DB) and outdoor use and can be attached to
aluminum structures (the tin plate). The much cheaper Ilsco
GBL-4 lug looks identical, but is tin-plated aluminum, has
a plated screw, and is not listed for outdoor use."
 
Jamie Johnson
NABCEP Certified Solar PV Installer #031310-118
General Manager
SOLAR POWER ELECTRIC
EC13001765
 

-------- Original Message --------
Subject: Re: [RE-wrenches] The Demise of WEEB
From: "Peter Parrish" <peter.parrish at calsolareng.com>
Date: Sun, September 12, 2010 6:50 pm
To: "'RE-wrenches'" <re-wrenches at lists.re-wrenches.org>

Are you sure that's a ILSCO GBL-4DBT lug? I am pretty sure the set screw is
not SS, which it should be to be the genuine part.

- Peter


Peter T. Parrish, Ph.D., President
California Solar Engineering, Inc.
820 Cynthia Ave., Los Angeles, CA 90065
CA Lic. 854779, NABCEP Cert. 031806-26
peter.parrish at calsolareng.com 
Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885



-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of R Ray
Walters
Sent: Sunday, September 12, 2010 3:10 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] The Demise of WEEB

A picture is worth a thousand words, (hopefully this will upload)
Here's a traditional Ilsco Lug after less than 5 years near the ocean:


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