DMEGC Photovoltaic Modules Installation Manual
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Modules should be connected to the equipment grounding conductor to prevent thunder and electrical
shock.
The frame rails have pre-drilled holes marked with a grounding sign, these holes should be used for
grounding purposes and should not be used for mounting the Modules.
We recommends always refer to local state and national code requirements for PV module grounding.
DMEGC highly recommends negative grounding if it's allowed by local authorities.
When attaching the frame grounding hardware and wire to the frame it must be placed corresponding
to the ground symbol stamped location to ensure proper electrical connection.
DMEGC recommends one of the following parts for grounding:
1) Use M8 bolt and washer to bond the ground wire and aluminum frame through the grounding hole
(as shown below left). The tightening torque is 3-7Nm. All nuts and washers should be made of stainless
steel. 4-14 mm
2
(AWG 6-12) exposed copper wire is recommended as ground wire.
2) Grounding by using grounding clamp
The grounding clip assembly consists of a slider, base, and self–captivating thread–cutting screw or
8–32 screw and hex nut. The grounding clip accepts solid uninsulated copper wire sizes 10 or 12 AWG.
We recommend customers use SolKlip Grounding Clip Assemblies 1954381–[]; SolKlip Grounding
Clip Assemblies 1954381–[ ] are used with metal–framed photovoltaic (solar) panels and related products
that require grounding for safety reasons.
