Date: 2019.9.24 Doc No: PS-M-0691 Ver. B Page - 11 - of 27
6.2.2. Mounting with Clamps
Trina Solar has tested its modules with a number of clamps from different manufacturers , fixing bolt of
at least M8. The length of clamp ≥40mm(1.57in).
The clamp must overlap the module frame by at least 7mm (0.28in) but no more than 10mm (0.39in).
Use at minimum 4 clamps to fix modules on the mounting rails.
Modules clamps should not come into contact with the front glass and must not deform the frame.
Be sure to avoid shadowing effects from the module clamps.
The module frame is not to be modified under any circumstances.
When choosing this type of clamp-mounting method, use at least four clamps on each module, two
clamps should be attached on each long sides of the module (for portrait orientation) or each short
sides of the module (for landscape orientation). Depending on local wind and snow loads, additional
clamps may be required to ensure that modules can bear the load.
Applied torque should refer to mechanical design standard according to the bolt customer is using, ex:
M8 ---- 16-20N.m(140-180lbf.in)
60Pcs MODULES(frame)
Mechanical Load
Pressure
Safety
Factor
Mounting Direction
(The crossbeam is perpendicular to the long side.)
+3600 Pa / -1600 Pa
1.5
*NOTE: The above-described distance is from the module edge to the
middle of the
clamp
*NOTE: Need two support rails below the PV module to make sure
the Mechanical load.
*NOTE: The actual load is + 5400Pa/-2400Pa
End Clamp installation
Middle Clamp installation
