Hi Drake,
I use the WEEB products whenever I can. I like the way they are an
aggressive, "toothy", stainless steel "filling",
in a nut, bolt, washer, locknut sandwich.
Having seen way too much lightning damage of late, and lots of
corroded mechanical lugs, it's great to have a bonding product
Hi Richard,
Thanks for responding to my post. It looks like no more responses
are coming in on the thread.
To summarize, it looks like the module grounding methods are not too
clearly spelled out at this time, and that some of the methods we use
could possibly be problematic (I.E. the groun
Hi Jim.
Please see http://we-llc.com/WEEBLug_story.html. You can certainly repeat the test in your own lab.
What we were trying to point out is that the
contact area for 2 threads of a thread forming screw do not match the
rating of the lug. The lug does meet the UL467 standard, but the lug
6) I think John Wiles recommended the star washer / bolt /
weather resistant lug combination as a solution in the absence of a
module manufacture's specific instructions.
Dick Ratico
Solarwind Electric
Bradford, VT
After a quick search of Brian Wileys www site we-llc, I could not find t
Hi Drake,
Thanks for your detailed reply. Hmmm. Grounding / bonding always the most
misunderstood, confusing, controversial aspect of electrical work.
Some thoughts:
1) The NEC is a MINIMUM standard.
2) The NEC sometimes has to play "catchup" in the case of developing
Hi Dick,
The methods of array grounding that I've used are WEEB bonding
device, or weather resistant grounding lugs screwed to the array
frame or bolted to array frames, using a star washer to dig into the
anodized aluminum frame. The lugs are connected together by a copper
ground wire, whic
Hi Drake,
Could you please elaborate?
Dick
Dick Ratico
Solarwind Electric
Bradford, VT
--- You wrote:
Hi William,
So is there no document we can read that delineates the actual
requirements? The standard methods of module bonding that we use
don't always seem logical. Engineers on a rec
Hi William,
So is there no document we can read that delineates the actual
requirements? The standard methods of module bonding that we use
don't always seem logical. Engineers on a recent job had similar feelings.
Drake
At 03:07 PM 1/6/2009, you wrote:
Drake:
Listed equipment must b
Drake:
Listed equipment must be installed per the manufacturer's
instructions. Listing agencies require grounding by a specific process to
replicate circumstances that occur when the product is tested..
William Miller
At 10:39 AM 1/6/2009, you wrote:
Hello Wrenches,
Where is the require
Hello Wrenches,
Where is the requirement that states that modules need to be grounded
by means of Weeb clips, or grounded by wires connected to the
modules? Reviewing the code, I can't find the requirement in Section in 690.
If the issue is that the anodized aluminum frame can build up a
co
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