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Installation Manual for DualSun PV Modules
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.
4mm² copper core wire is used for the grounding clamp. And copper wires can not be pressed
damaged in installation.
Figure 6 Grounding Clamp Installation
Note: TYCO. 1954381-1 (recommended) is used in figures above.
7.2
Grounding by unoccupied mounting holes
Mounting holes on modules that are not occupied can be used for installing grounding devices.
1. Align grounding clamp to the frame mounting hole. Use grounding bolt to go through the
grounding clamp and frame.
2. Put the tooth side of the washer on the other side and fasten the nuts. The recommended
torque for nut fastening is 2.0Nm to 2.2Nm.
3. Put grounding lines through the grounding clamp and grounding wire material and dimension
shall meet requirements in local national and regional law and regulations.
4. Fasten bolts of grounding lines and installation ends.
Grounding clamp
Grounding line
Frame
Mounting
Slot
Push
Frame
Grounding line
Fasten base bolts and keep base
and frame parallel
Grounding line is at bottom of line
slot
Cover the base and the line
is clamped tight.
