5
Mechanical Installation
13
5.2 Monofacial assembly mechanical installation
5.1 Regular Requirements
•
Make sure that module installation mode and bracket system can meet 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 standards or international standards.
•
Module bracket shall be made from durable, corrosion resistant, UV-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 shadowed by
snow for a long time. In addition, make the lowest point of modules high enough so as to avoid shading of vegetation
and woods or reduce damage of 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 in case of module wire damage.
•
Make sure the building is suitable for installation before installing modules on roof. Moreover, seal properly to
prevent leakage.
•
The module frames can appear thermal expansion and cold contraction so the frame interval between two adjoining
modules shall be no less than 10mm.
•
Make sure that backsheet of modules will not be in contact with bracket or building structures that can pierce into the
inside of the modules, especially when the module surface is imposed by pressure.
•
Maximum static load of the PV module is downforce 5400pa and uplift force 2400pa, which can vary from different
mounting methods of the modules (please refer to the following installation guidance), the described load in this manual
is for the test load.
•
Note: on the basis of IEC61215 - 2016 installation requirements, when computing the corresponding maximum design
load, need to consider the safety factor of 1.5 times.
•
Modules can be installed horizontally or vertically. When installing the components, be cautious not to block the drain
hole of the frame.
Module and bracket system connection
can be realized by mounting holes,
clamps or embedded systems. Installa-
tion shall follow the demonstration and
suggestions below. If installation mode
is different, please consult LONGi and
obtain approval. Otherwise, modules
may be damaged and limited warranty
will be invalid.
