William - Actually, that is not the case. The way I was taught to install modules is by setting the module on the rail with the ground lug on the elevated section of frame, connecting the ground wire and module conductors, then lowering the module onto the rails and tightening the clamps. The rigidity of the solid copper ground keeps the wire recessed under the module (i.e. no angle to the dangle) and allows each module to then be unclamped and accessed while remaining grounded.
I think a WEEB jumper is a great idea and could help to solve the WEEB Clip issue. - Andrew On Tue, Sep 14, 2010 at 1:52 AM, William Miller <will...@millersolar.com>wrote: > Andrew: > > You make a very good point in 2) below, however there is one step missing: > If a ground fault is occurring, the technician will eventually need to look > under modules to find the fault. This is the reason the top-down clips will > be loosened. If the module is grounded with #6 wire, the wire will prevent > the module from being lifted. Therefore, the lug will also be loosened, > un-grounding the module -- creating the unsafe condition you described. > > WEEB clip or WEEB lug, the technician dies. > > Should we invent a WEEB jumper cable to maintain module bond while the > modules are being lifted? > > William Miller > > > > > At 07:44 PM 9/13/2010, you wrote: > > > > 2) My biggest concern with the WEEB Clip is that the moment a top-clamp is > loosened the module is no longer grounded!!! To me that is not a good > grounding method. Mr Wiley is obviously a talented inventor and he makes a > strong argument for the quality of the bond that the WEEB Clip provides when > the clip is installed properly and all mounting hardware is properly > torqued. What I don't understand is the argument that this is as safe of a > product as a properly installed outdoor rated lug for the service tech who > has to work on that array. > > > A tin-plated copper lug with a stainless steel set screw will last. A > service tech working on a faulted array that was grounded with WEEB Clips > might not. > > > > Andrew Truitt > Free agent > Golden, CO. > > > _______________________________________________ > 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 > > > -- "Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!" ~William McDonough
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