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7. Ground method
To prevent electric shock or fire, an earth must be done on the frames of solar modules.
Grounding hardware
Hexagon nut & bolt
Plain washer
Toothed lock washer
Screw washer
Ground wire
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B
C
B
<Figure 5>
Dimension & material
M4 stainless
M4 stainless
M4 stainless
M4 stainless
12 AWG copper
A
Bolt
F
B
Plain Washer
B
C
Toothed Lock Washer
E
D
Grounding Wire
D
E
Screw Washer
A
F
Nut
Remark
The length of the bolt: 15 mm
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