Date: 2019.9.24 Doc No: PS-M-0691 Ver. B Page - 14 - of 27
Mechanical Load
Pressure
Safety
Factor
Mounting Direction(The beam is parallel to the long side.)
+3600Pa/-1600Pa
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: Special requirement products with actual load of +
5400Pa/-2400Pa
6.2.3 Mounting with Single-axis Tracking System
This installation is only for 72 cells polycrystalline modules.
It is a Single-axis Tracking System, the module is fixed on the axis by bolting long frame.
The frame of each module has 4-
φ7*10mm(0.28*0.39in) mounting holes with specific location shown
in Figure 3.
Secure the module in each fixing location with an M6 bolt, two flat washers, a spring washer and nut
as shown in Figure 3.
If a different bolt similar to M6 is used, they need to be tightened to a torque of 16N.m.(140lbf.in).
All parts in contact with the frame should use flat stainless steel washers of minimum 1.5mm thickness
with an outer diameter of 16-20mm (0.63-0.79in.).
The bolt should be made of stainless steel or the other anti-corrosion material.
Mechanical Load Pressure under this method: 30 lbs.ft
2
max from the front side & 30 lbs.ft
2
max from
the rear according to UL1703.
