Todd - Burndy and Ilsco both make similar tin coated copper lay in lugs. Here are two manufacturer part numbers:
Ilsco GBL4 DBT Burndy CL50-DB-T Other wrenches, let me know if these parts numbers don't sound right. As has been mentioned on this list several times, Wiley makes really nice lugs for grounding your rails: http://www.we-llc.com/WEEB.html Both the Burnday and Illsco lugs are similar as far as I can tell and include a stainless set screw. Prices vary, so be careful. You then need to decide how to you want to fasten them to the module frame. Many folks use SS 10-32 thread forming screws but I found that the crew members were commonly stripping the soft aluminum module frames during installation. I can't keep those guys away from their impact drivers! Now we use a SS 10-32 thread forming screw and a SS kep nut on the backside of the frame. The thread forming screw cuts right though the manufacturer supplied ground spot and them the kep nut assures that we can go good and tight. We always use a SS star washer between the lug and the frame. And the kep nut includes a star washer built in which keeps the install fast. Sample nut pic: http://www.allproducts.com/manufacture7/femico/kkep.html These lugs are widely available from most solar suppliers. Yea, those old standard aluminum lay in lugs just don't hold up in our climate, at least. Best, August August Goers Luminalt Energy Corporation 4000 Irving Street San Francisco, CA 94122 Office: 415.564.7652 Mobile: 415.559.1525 aug...@luminalt.com www.luminalt.com ________________________________ From: Todd Cory <toddc...@finestplanet.com> To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Sent: Thursday, April 30, 2009 4:11:27 PM Subject: [RE-wrenches] lay in lugs Does anyone have a part number for the lay in lugs they use for module grounding? I don't want copper or aluminum ones because of problems with dissimilar metals. Don't they make a tin plated copper one that works with the aluminum module frames? My wholesaler cannot seem to find the part number. Thanks, Todd _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
