GCL System Integration Technology Co., Ltd.
Bring Green Power to Life
22
GROUNDING
Grounding by cable
The grounding bolts must be made of stainless steel and be used in the specified
grounding holes. First, make the M3. 5 stainless steel bolt pass through the spring
washer, flat washer, cup washer (copper conductor with a diameter of 2.1 mm) and
star washer, and then insert through the grounding hole, flat washer and spring
washer on the frame. Finally, tighten with a M3.5 nut. Caution: The upper limited
temperature of the conductor is 85
℃
. As for the installation, refer to Figure 10.
Grounding by lugs
All the module frames and mounting structures shall be grounded according to
regional and national electricity regulations. Use recommended hardware to connect
grounding cables and fasten to the Module frames.
While using the metal structure, make sure the surface of the system have been
electroplated to keep a good conducting circuit.
Use suitable grounding conductors to connect the Module frame to the mounting
structure. This can achieve proper grounding effects.
The grounding conductor must be connected to ground via an appropriate grounding
electrode. It is recommended to use lugs to connect the grounding cables. I f it is
only mechanically connected to a grounded module without bolts and nuts, the
mounting system should be grounded as well.
First, peel the grounding cable to a proper length without damage to the metal core.
Then insert the peeled cable into the lug, tighten the screw. As shown in Figure 11,
connect the lug to the aluminum frame with stainless steel bolts and connection
components. The recommended tightening torque for M3 bolts is 2.3N•m.
Figure 10 Figure 11
Nut(M3.5,SS)
Spring washer(SS)
Flat washer(SS)
Flat washer(SS)
Star washer(SS)
Cup washer(SS)
Spring washer(SS)
Bolt (M3.5, SS)
Copper wire
Nut(M3,SS)
Frame
Spring washer
Frame
Grounding Lug
Grounding
cable
Flat washer
Star washer
Bolt (M3, SS)
