13
Appendix. Mechanical Installation : 72Cell Model
Fig7. Bolting Type
①
※
Only NEXTracker
①
: 812mm
Front : 2000Pa
Rear : 1750Pa
Note) When installed Fig.7, follow the NEXTracker’s recommended applied torque and materials to fasten the modules.
Bolting Method
Module
frame
Bolt
Flat
washer
Mounting
Rail
Flat
washer
Spring
washer
Nut
•
Four M8(5/16inch) stainless steel bolts, four nuts, four spring washers, and eight flat washers are recommended
per
solar module.
Clamp system requirements
•
The
clamp should not be touched with the module’s glass.
•
Use corrosion resistant material clamps and hardware.
→ If you use a
special clamp, it needs to test for compatibility by LGE.
•
Use
appropriate bolted connections as per clamp manufacturer’s instructions.
•
Follow the clamp manufacturer’s recommended applied torque to fasten the clamps.
Width
Height
Depth
Width
Depth
Height
<Middle Clamp>
<Edge Clamp>
Note) All mechanical installation method (Fig.1 to Fig.7) and bolting method in this appendix were not tested by VDE.
It is
evaluated by LG internal test.
