Abound Solar
Mounting Application Note
AB1-Series
Page 3
Document #3106761 Rev A
Effective 18 May 2010
more than 10 mm of the topside of the module.
A representative safety hook is illustrated in
Figure 2.1.
Figure 2.1
Safety Hook
3.0 Clips
The clips themselves should provide a contact
area of no smaller than 70mm x 10 mm. On the
front of the module, it is imperative to not
encroach upon the active cell area, which lies
about 12mm in from the edge of the glass. On
the rear of the module, there is no constraint on
how far the clip may encroach on the module.
The farther the clip protrudes on the rear of the
module, the higher the load bearing capability
will be.
Note that in some installations the overall
impedance of the system will be affected by this
overlap - creating an electrical backplane - that
may affect the operation of some inverters under
certain conditions. The amount of overlap, and
the distance between the back of the module
and the clip and/or rail, will affect the amount of
parasitic capacitance that is then built into the
system. This capacitance, although low on a
per panel basis, may add up to a significant
amount on a large installation. Consult your
inverter manufacturer for more information.
3.1 Approved Clips
Approved clips have been tested to ensure
compliance with UL and IEC standards,
including IEC 61646, 10.16 (applied load test)
and IEC 61646 10.15.2 (deflection over
distance). New clip and mounting system
designs must comply with these standards.
The following clips are approved for use on
Abound AB1 Series Photovoltaic Modules:
Manufacturer
Model Number
Schletter
http://www.schletter-
inc.us/
ECO-8
Contact Abound Solar to initiate the
approval process on newly designed clips.
