Yingli Solar G/G Modules, Installation and User Manual
page 6
Framed PV Module Mounting Mode
•
Clamps selection
The manufacture of the clamp is responsible for providing an appropriate clamp
and installation manual. Clamps length shall not be less than 50 mm (see Figure
16).
Figure 16: Detail of a clamp
•
Bill of material
Table 4: Installation accessories
•
Portrait orientation
mounting method
Step 1:
Place the clamps on the support beams at correct positions according to the
module size. The exact values can be found in the “Module Supplement”.
Step 2:
Place the inside hexagonal bolt into the clamp and screw it partly in the nut. Then
insert the two into the beam.
Figure 18: Primary fixation clamp
Step 3:
Place the modules and tighten the bolts (It’s recommended to fix the clamps by
M8 screws and tighten the screw with 16 N•m ~ 20 N•m torque, see Figure 19).
Figure 19: Tighten clamp
Step 4:
Connect the frames by grounding wires (It’s recommended to fix by M5 screw
and tighten the screw with 4 N•m torque), then make it earthing reliably.
Successively fasten clamps and connect framed PV modules (see Figure 20).
Figure 20: Framed G/G array
M A I N T E N A N C E
General
Yingli Solar recommends that PV systems be periodically inspected by the
installer or other qualified person.
The purpose of the PV system inspection is to ensure that all system
components are functioning properly. At a minimum, this inspection should
confirm the following:
• All cables and connector attachments are undamaged and properly secured
• No sharp objects are in contact with the PV module surfaces
• PV modules are not shaded by unwanted obstacles and/or foreign material
• Mounting and grounding components are tightly secured with no corrosion
Defects should be addressed immediately.
Cleaning
Over time, dirt and dust can accumulate on the glass surface of the module,
reducing its power output. Yingli Solar recommends periodic cleaning of PV
modules to ensure maximum power output, especially in regions with low
precipitation.
In order to reduce the potential for electrical and thermal shock, Yingli Solar
recommends cleaning PV modules during early morning or late afternoon
hours when solar radiation is low and the modules are cooler, especially in
regions with hotter temperatures.
Name
Dimesion (mm)
Material
Clamp
Width * Height * Wall thickness
40×10×3.0
Aluminium alloy 6063 T5
Beam
Width * Height * Wall thickness
41×41×2.0
Galvanized steel
Nut
Suitable for M8 screw
Plastic
SUS 304
Grounding wire
Length * Sectional area
150×4.0 mm
2
Copper
Inside hexagonal bolt
M8 screw
Spring washer
Flat washer
SUS 304
Figure 17: Installation accessories
Clamp
Inside Hexagonal Bolt
Nut
Beam
Grounding Wire
