Due to changes in the outdoor environment, photovoltaic modules are often affected by harsh natural environments in practical applications, resulting in changes in the performance of photovoltaic modules. As a kind of harsh environment,hail weather will seriously affect the performance of outdoor solar modules. Millennial Hail Impact Tester simulates hail weather through experiments and can evaluate the durability of solar modules in hail weather, thereby helping photovoltaic module manufacturers produce high-quality solar modules!

In the IEC61215 series of standards, the impact of hail on the surface of photovoltaic modules is taken into consideration. The main test method is to use a pneumatic launching device to launch ice balls at a certain speed to impact the surface of the photovoltaic module. After the impact is completed, changes in the appearance, electrical safety and output performance of the module are checked. The whole process can be roughly divided into the following three steps:

1: Production of puck

The standards have higher requirements for pucks, especially large-size pucks with a diameter of 55-75mm. Pucks with different diameters and masses have different impact speeds. Large-diameter pucks can better reflect the mechanical impact resistance of photovoltaic modules.

Millennial Hail Impact Tester is equipped with a special puck mold, which can prepare pucks of different sizes, and has protection measures to prevent puck fragments from splashing, making it easy to make pucks.

2: Saving puck

After the puck is produced, the puck is screened and stored in an environmental condition of -4℃±2℃.

3: Puck impact

First use some pucks to adjust the firing speed of the pneumatic launching device to ensure that the puck firing speed meets the standard requirements. After the adjustment is completed, install the component under test on the test plane. Large pucks with a diameter of 55mm or more will produce strong impact forces at high speeds. Personnel protection measures must be taken to prevent broken pucks and fragments from causing harm to testers.

The IEC 61215-2016 standard is very comprehensive in verifying the hail test of modules. It has detailed definitions of various test points on the glass surface of the module, including the edge positions of the module, such as positions numbered 1 and 7 in the figure below. These positions are used when the module is subjected to It is relatively easier to be damaged upon impact.

11 Hail Impact Locations

Millennial Hail Impact Tester is equipped with a variety of clamps, which can be adapted to components of different structures; the puck speed can be monitored with a speedometer to ensure that the speed is accurate and intuitive; the puck is launched by compressed air, and the compressed air pressure is adjustable; the puck launch point can be positioned by infrared to ensure The results are accurate; a waste puck treatment tank is designed to protect personnel safety.

E-mail: market@millennialsolar.cn

Millennial Hail Impact Tester is a professional laboratory instrument for testing the hail impact resistance of solar photovoltaic modules. It is used to test the hail resistance of photovoltaic modules and systems on-site to help users determine whether they meet customer requirements. Accurately measure and analyze the hail impact resistance of solar photovoltaic modules to achieve a high-value experience throughout the entire life cycle of the photovoltaic power station.