13
ANLEITUNG 04_21
Grounding/ (Potential equalization)
Please observe the requirements and standards of the respective national directives for equipotential
bonding. DIN VDE 0100-540 applies to grounding systems and protective conductors including protective
equipotential bonding conductors with the aim of fulfilling the safety of electrical systems.
TRIMAX Solar uses a frame made of anodized aluminum. Therefore, the modules should be connected to the
protective equipotential bonding to prevent electric shock.
Module frame and equipotential bonding must not be used as part of lightning protection. Have the lightning
protection planned and installed by qualified specialists. Avoid electrical corrosion by taking appropriate
measures.
Grounding methods:
The grounding conductor should be at least the
same size as the electrical conductors. Grounding
cables of not less than 4 mm² are recommended. The
frame has pre-drilled holes marked with a grounding
symbol.
Figure 6: Grounding Symbol
•
The grounding holes may only be used for
grounding purposes and not for module
mounting.
Figure 7: Grounding
Additional third-party grounding devices:
TRIMAX PV modules can be grounded using third-party grounding devices. It is required that these devices
are certified for grounding solar modules and are installed according to the manufacturer's instructions.
Design substructure
•
For rooftop systems, always make sure the roof structure is suitable before installing the modules on
a roof.
•
Make sure that the modules do not overlap or exceed the size of the roof.
•
Consider the thermal linear expansion of the frames: The recommended minimum distance between
two modules is 1 cm.
•
For ground-mounted systems, the recommended minimum distance from the ground to the bottom
edge of the module is at least 50 cm.
•
Provide adequate ventilation under/behind the modules to cool them. A minimum distance of 10 cm
between the roof level and the frame of the module is generally recommended.
•
When planning the final arrangement of the modules, keep a suitable access area free to facilitate
maintenance and inspection work.
•
Do not place the PV modules near air conditioning units or above ventilation outlets.
Load capacity
TRIMAX PV modules can be installed in both landscape and portrait format. Please refer to the load
specifications for the individual module types in the next sections. Please note that this may vary depending
on the mounting system and configuration. The specified values correspond to the design load according to
IEC 61215: 2016. The cyclic load test is carried out according to the standard with the 1.5 times higher test
load. The substructure should be made of durable, corrosion and UV resistant material. Make sure that the
installation method and the substructure can withstand the loading conditions.