Benn,
This product appears to be significantly superior to the old-school ILSCO tin-plated copper lugs. While those lugs may have been the best thing going 10 years ago, there have been many improvements. This looks like one of them. I would argue with the statement that tin-plated copper is industry "best practice". This tin-plated aluminum product is more likely to hold up in direct contact to a PV module. We have seen the old ILSCO tin-copper lug deteriorate over time in more corrosive environments. Also, if you use bare aluminum equipment grounding conductors, all dissimilar metal issues would be resolved -even though this lug is clearly listed for copper or aluminum conductors. UL467 is the Grounding and Bonding equipment standard and does not have much in the way of environmental tests for outdoor use. That is why ILSCO is marketing that they have passed the additional ASTM B117-09 salt fog test since UL467 does not test outdoor conditions all that well. We are incorporating similar test requirements into the UL1703 (PV module) and UL2703 (PV mounting systems) standards. The only catch with this product is that if an AHJ insists that the PV module be listed with this device, very few, if any module manufacturers will have evaluated this device with their modules. As we change the UL1703 standard, it will be much simpler and cheaper for products like this to be evaluated for application on PV modules. If an AHJ accepts this product, I would definitely use it in place of the old ILSCO lay-in tin-copper lug. Bill. From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William Miller Sent: Monday, August 27, 2012 1:20 PM To: RE-wrenches Subject: Re: [RE-wrenches] Ilsco SGB bonding lug Benn: Good looking lug, looks very useful. It won't do any good on the Solar World Plus series unless they have the version 2.5 frame. The standard frame has no flange! William Miller At 12:49 PM 8/27/2012, you wrote: Wrenches, What is your take on this product from Ilsco? It appears to be a good option for bonding module frames and has been suggested by a distributor for bonding rails as well.. But industry best practice has steered us away from using aluminum lugs in favour of tin-plated copper lugs. SGB SOLAR GRND BND <http://ilsco.com/ProductsDetail.aspx?kfjkff=0kMVXKLlROO4l5EwarhvPw%3d%3d&fj jfhjhj=nFBt62Axh6IhPmrswva0nAkQKTu46vPAzpM1xJdnS3Y%3d> SGB-4 <http://ilsco.com/TechnicalDrawing/G1040.pdf>
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