Earth Ground Wiring
Earth Ground Wiring
Screws or other earth ground connec
tions may not be used for fastening the
photovoltaic system mechanically on the
loadbearing surfaces or frames.
To avoid an electric shock or fire, the
frame of the solar modules must be
earthed. Follow the instructions in the
graphic below.
Earth ground wiring
38
No.
1
2
3
4
5
6
2
3
2
Description
Basic size
Hexagonal screw
M4 × 15
Shim
4.3
Serrated washer
4.3
Earth ground wire
AWG 12
Spring washer
4.3
Hexagonal nut
M4
6
2
5
4
1
Material
rustfree
rustfree
rustfree
Copper
rustfree
rustfree