Common hardware items such as nuts, bolts, star washers, lock washers and the
like have not been evaluated for electrical conductivity or for use as grounding
devices and should be used only for maintaining mechanical connections and
holding electrical grounding devices in the proper position for electrical
conductivity. Such devices, where supplied with the module and evaluated
through the requirements in UL 1703, may be used for grounding connections in
accordance with the instructions provided with the module.
Grounding methods below are permissible:
7.1 Grounding by grounding clamp
There is a grounding hole with the diameter of Ø4.2mm at the edge of the module
back frame. The central line of the grounding sign and that of the hole overlaps
and is consistent with the frame length direction.
Grounding between modules shall be confirmed by qualified electricians and
grounding devices shall be manufactured by qualified electric manufacturer. The
torque is recommended to be 2.3N•m.
12 AWG copper core wire is used for the grounding clamp. And copper wires can
not be pressed damaged in installation.
Installation Manual PV Modules High Power Half Cut
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