Mechanical installation
5.1 Regular requirements
Make sure that module installation mode and bracket system are solid enough to
bear the expected load, which is requisite assurance that the bracket installer must
provide. Installation bracket system shall be tested and inspected by the third
party testing institution with static mechanical analysis capacity in accordance
with local national or international standards.
Module bracket shall be made from durable, corrosion resistant, ultraviolet proof
materials. Modules shall be fixed on the bracket solidly.
Use higher brackets in places with heavy snow accumulation so the lowest point of
modules will not be covered by snow for a long time. In addition, make the lowest
point high enough so as to avoid sheltering of vegetations and woods or damage
of flying sands and stones.
If modules are installed on brackets parallel to the roof or wall, the minimum gap
between the module frame and the roof/wall shall be 10cm for air ventilation so as
to prevent module line damage.
Do not make holes on glass or frame of modules.
Make sure the building is suitable for installation before installing modules on roof.
Moreover, seal permeable parts properly to prevent leakage.
The module frame has thermal expansion and cold contraction so the frame
interval between two adjoining modules shall be less than 10mm.
Make sure that back plate of modules will not contact bracket into the module or
building structures, especially when the module surface is imposed by pressure.
GRUPPOSTG Solar Modules have been certified for a maximum design static load
on the back of the Modules of up to 1600Pa*1.5 (i.e. wind load) and a maximum
design static load on the front of the Modules of up to 3600Pa*1.5 (i.e. wind and
snow load), depending on the clamp mounting (please refer to follow installing
data for this information). And this is printed on the label of modules.
Module installation methods can not lead to electrochemical corrosion between
module aluminum frame and different metals. Electrochemical potential
difference of contacting metals shall not exceed 0.6V as is recommended in UL1703
Appendix Flat Plate Photovoltaic Modules and Panels.
Modules can be installed horizontally or vertically.
Installation Manual PV Modules High Power Half Cut
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