www.znshinesolar.com
Document No.
：
QES/ZX-RD-III032A
- 18
E. Mounting with Clamps apply to Frameless Double-glass and Frameless Bifacial double-glass
ZNSHINE SOLAR has tested its modules with a number of clamps from different manufacturers and
recommends the use of clamps which have an EPDM or similar insulating washer, with a mounting bolt of at least
M8.
Use at minimum 4 clamps to attach modules o the mounting rails.
Be sure to avoid shadowing effects on the solar cells from the module clamps.
When choosing this type of clamp-mounting method, use at least four clamps on each module, the 4 clamps
should be attached two each on the long sides of the module. Depending on local wind and snow loads, additional
clamps may be required to ensure that modules can safely bear the load. The clamps of double-glass and bifacial
double-glass are different because backside to be used with the Bifacial double-glass cannot be shaded.
ZNSHINE clamps are recommended for the Bifacial double-glass.
Module
Mechanica Load
Pressure
Safety
factor
Clamp
Length
Mounting Direction
60/66/120/132 pcs
frameless double-glass
+3600Pa/-1600Pa
1.5
150mm
A=1/4L±50mm；L=Module length
60/66/120/132 pcs
frameless bifacial
double-glass
+1600Pa/-1600Pa
1.5
150mm
A=1/4L±50mm；L=Module length
