Fellow Wrenches:
I am involved in the commissioning of a 300kw parking structure PV
system and have a concern about possible galvanic action between the
aluminum module frames and the stainless steel uni-strut.
The installation contractor attached the PV modules using a WEEB-like
stainless steel top-mounted clamp (to pierce the top of the PV frame). A
stainless steel bolt connects the clamp to the channel nut. The bottom
of the PV module is resting on the galvanized uni-strut.
Should there also be a WEEB-WMC assembly between the PV module and the
uni-strut?
Anyone have any experience where direct contact of these dissimilar
metals became an issue over time?
--
Regards,
Gary Willett, PE
Icarus Solar Services LLC
NABCEP Certified Solar PV Installer
g...@icarussolarservices.com <mailto:g...@icarussolarservices.com>
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