The mechanical strength of photovoltaic modules is tested according to the IEC 61730:2021 standard. Manufacturers subject their panels to various tests to validate their durability. In this context, photovoltaic modules undergo static load tests under pressure and suction to simulate extreme conditions:
Outlined in this document are the test conditions related to our test chambers. For more information on IEC, UL or ASTM standards or to purchase a copy of the full specification, visit the following web sites, , or The most common photovoltaic test specifications along with our Environmental Testing Guide.
In this context, photovoltaic modules undergo static load tests under pressure and suction to simulate extreme conditions: A pressure of 5400 Pa is applied to the front face to simulate the weight of snow. A suction pressure of 2400 Pa is then applied to the rear face to simulate wind effects.
In project development, the mechanical loads listed in the installation manual are the resistance thresholds that must not be exceeded to ensure that the system remains within its ELS. The mechanical load values of photovoltaic modules are crucial for ensuring the durability of installations in all climatic conditions.
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