4
The clamps should be made of aluminum
alloy
or
other
material
that
will
reasonably protect against a risk of
electrolytic corrosion.
Figure 1-2 shows using a bolt and nut for
mounting.
Recommendation of bolt torque: 10 ft-lbs.
The module was tested using Unirac or
IronRidge clamps with the specifications
see figure 1-1 and below;
1)
Unirac clamps:
Provider: Unirac, Inc.
Product Line: SolarMount
Clamps type: Top Mounting Clamps
(Mid clamp and End clamp)
Unirac Part No. 302022C, 302022D,
302027C, 302027D
Width: Mid clamp; 1.5”(38 mm), End
clamp; 1.9”(48 mm)
Thickness:
Mid
clamp;
Nominal
thickness 0.075”(1.9mm), End clamp;
Nominal thickness 0.125”(3.17mm)
Torque: 13.6 N.m(10 ft-lbs).
Material: Mid clamp; 300 Stainless
steel, End clamp; 6000 Aluminum
alloys
Note: Please refer to Unirac manual,
for installation method.
2)
IronRidge clamps:
Provider: IronRidge Inc.
Product Line: RoofMount
Clamps type: Top Mounting Clamps
(Grounding mid clamp and End
clamp)
IronRidge Part No. RS-GD-MCL-225,
RS-GD-MCL-225B, 29-7000-224, 29-
7000-224B
Width:
Grounding
mid
clamp;
1.16”(29.5 mm), End clamp; 1.5”(38
mm)
Thickness:
Grounding
mid
clamp;
Nominal
thickness
0.11”(2.85mm),
End
clamp;
Nominal
thickness
0.125”(3.17mm)
Torque: 9.5 N.m (85 in-lbs).
Material: Grounding mid clamp; 304
Stainless steel, End clamp; 5000 &
6000 Aluminum alloys
Note:
Please
refer
to
IronRidge
manual, for installation method.
Panasonic does not provide a warranty
for
clamps.
The
module
warranty
Panasonic provides shall be
voided if
clamps selected by the customer are of an
improper material or size
Operating Conditions
Panasonic requires that modules are operated
within the following Operating Conditions:
1)
Terrestrial
applications
only-no
outer
space or Special Conditions (see below).
2)
The operating temperature must be
within –40°C (-40 °F) to 85°C (185 °F).
3)
The wind pressure load of the installation
site should be less than 2,400N/m
2
(50PSF)
Installation (reference)
Figure 1-1. Installation
<Unirac clamps>
Mid clamp
End clamp
Grounding Mid clamp
End clamp
<Ironridge clamps>
Solar Module
Mid Clamp
(2 places)
End Clamp
(2 places)
Mounting
Structure Rail
Mid Clamp
Solar Module
End Clamp
Mounting
Structure
Rail
<Cross section of clamps>
Overlap range
≧
0.24” (6mm)
Mid clamp
End clamp