There is an issue with Sharp modules using Weeb clips also. They are not specified for grounding in their manuals and UL has not tested Sharp modules with the clips. For now, they are not acceptable. I don't know how many brands of modules are effected by this ruling.

Drake

At 04:48 PM 9/12/2010, you wrote:
We were informed a while ago that SunPower no longer "supports" their
version of the WEEB clip "due to UL testing changes." (unspecified) and
appears to have regressed to the ILSCO GBL-4DBT lugs with SS star washers,
lock washer, nut and specific torque requirements.

Most people I have spoken with feel that the lug approach, though a
competent means of bonding PV modules, is awkward and time consuming,
compared to the WEEB clips.

What happened wrt UL testing and how is CSA listing affected?

I seem to remember a video showing a conventional lug-based bond fail under
test as par of a WEEB promo. I hope I can find it and take a look at it
again.

There also is a Tyco SolKlip that SunPower is apparently looking at but no
word yet from SP, and it is not clear that the SolKlip has been affected by
"UL testing changes".

Any info on the UL testing changes would be much appreciated.

- 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.parr...@calsolareng.com
Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885




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