The TG-860 photovoltaic module mechanical load testing machine is used to verify the ability of the module to withstand static and dynamic loads such as wind pressure, snow pressure, or icing at different installation angles. Widely used for testing the compressive strength of photovoltaic modules, dynamic holding pressure technology is used to simulate load tests to understand the compressive capacity of modules under wind pressure, snow pressure, static pressure, and ice load.

The TG-860 photovoltaic module mechanical load testing machine is suitable for the following standards:High precision simulation testing equipment developed and produced for testing standards such as IEC62782, IEEE1262, IEC61215, UL1703, etc. Static mechanical load testing of photovoltaic modules is a very important test in international standards for verifying the ability of modules to withstand static loads.

After years of in-depth research, Tai Gui Instrument has now been launched on the marketTwo mechanical load testing machines for photovoltaic modules meet different customer needs.

1： Sandbag mechanical load test (static method)

The degree to which photovoltaic modules can withstand various loads. In the process of many years of practice, the standards and specifications for mechanical load testing have gone through different stress forms such as sandbags, cylinders, water bags, and wind tunnels to verify the rationality of pressure applicationDifferent stress values such as 2400Pa, 5400Pa, 8000Pa were used to verify the different requirements for mechanical load resistance. A dynamic mechanical load of 1000Pa was developed every three seconds to simulate changes in wind, and low-temperature mechanical loads were also developed to verify the mechanical load bearing capacity in extremely cold climates.

The mechanical load equipment bracket adopts an industrial aluminum profile design mechanism to apply pressure,The current standard of IEC61215 includes load testing, which applies pressure to the surface of the component to observe its changes. The operation is convenient and fast, the pressure is uniform, and the aluminum profile bracket is easy to install. It is the most economical and practical static load testing equipment.

1: Testing Platform: Industrial Aluminum Profile

2: Maximum test size: 3000x2000mm (customizable)

3: Component payload test size: 2500mmx1500mm (customizable)

4: Component surface load: 2400pa, 5400pa, 8000pa, controllable and adjustable.

5: Pressure control accuracy: ± 2%

6: Application method: Sandbag

7: Sandbag weight: 5KG, 10KG, 15KG, 20KG (customizable)

8: Number of sandbags: 300.

9: Dust free sandbag: The dust-free sandbag carefully developed by Taigui Instrument solves 98% of the load testing troubles in the photovoltaic industry. Can completely solve the sandbag method test,The problem of leaving dust on the components.

2： Sandbag methodmachineryLoad testing (dynamic)/Static method

Main functions:

Dynamic mechanical load test, photovoltaic modules undergo dynamic cyclic tests (tensile and compressive cycles) to meet the new standardsIEC62782) Users can set parameters such as pressure, tension, pressure time, tension time, and cycle times. Clicking on the start button on the touch screen will automatically complete the test.

Static mechanical load test (conventional tensile and compressive tests, in compliance with standards)IEC61215) Users can set parameters such as pressure and tension, maintain tension or pressure for one hour, and repeat three times.

Overview of Technical Parameters:

1: Tai GuiPhotovoltaic module mechanical load testing machineuse7-inch true color touch screen control, achieving intelligent control mode; And upgrade the user-friendly interface for customers, truly achieving first-class manufacturing level. The Taigui photovoltaic load testing machine adopts Load Cell induction, and the resistance value is analyzed by the computer and directly displayed, or a constant pressure is set and held for several times to evaluate its durability performance.

2: Load application method: The cylinder drives the vacuum suction cup to press down or pull up.

3: Component payload test size: 2500 × 1300mm (customizable).

4: Machine appearance dimensions: 1600 × 3000 × 3500mm (subject to actual product)

5: Aluminum profile structure (or optional steel frame structure), the platform and bracket do not deform under test stress (the surface of the aluminum profile is treated with electroplating to prevent fading and present a beautiful appearance).

6: Component surface load: Test forward load of 5400 Pa, reverse load of 2400 Pa (pressure can be set or increased).

7: Pressure accuracy: ≤ ± 3%.

8: Dynamic load test frequency: 7s ± 3s

9: Dynamic load: 1000Pa, 1000

10: Cycle times: 1-99999 times can be set

11: Load form: forward and reverse

12: There are 32 sets of vacuum suction cups, with adjustable suction cup spacing and a universal structure to ensure uniform force distribution on the surface of the components.

13: Suction cup diameter 150mm

14: Human computer dialogue, color 7-inch touch screen, Chinese/English display

1: 5: PLC programmable control

16: Pressure requirement: 6-8kg/cm

17: Automatic overvoltage protection function.

18: Equipped with real-time display of pressure, deformation, curve value, testing time, cycle times, and other functions

19: Automatic alarm function:

20: Automatic data recording and saving function

21: The software has a fault warning function. When any of the above situations occur in the device, the software will pop up a prompt window and the device will issue an alarm, prompting the operator to take corresponding measures.

22: Power requirement: 380v/50hz

Our company has multiple options for users to choose from. Welcome to call us for consultation and negotiation. Nowadays, market experience suggests that various testing methods are used to verify the uniform mechanical load bearing capacity of photovoltaic modules in a horizontal state. However, in actual outdoor installationstimeComponents have a certain inclination angle and require a specific testing method to measure their resistance to snow loads.

IEC 62938 is the response of the IEC Photovoltaic Working Group to this market demand and was recently released. This new standard provides a method for measuring the load-bearing capacity of frame type photovoltaic modules under non-uniform snow loads.

Static mechanical load is usually applied by first applying pressure of 2400Pa on the front of the component for one hour, then flipping the component over and applying pressure of 2400Pa for another hour. This process is repeated three times, and the front pressure of the component increases to 5400Pa in the last cycle. After the experiment is completed, test the appearance, IV and wet leakage performance of the components.

The dynamic mechanical load is usually applied to the front of the component with a positive and negative pressure cycle of 1000Pa, 3 cycles per minute, for a total of 1000 times.

In order to simulate the pressure on both sides of the component to the maximum extent and ensure the uniformity of pressure, the most uniform way is to use liquid pressure. Considering the safety of on-site use and cost control, liquid water is the most cost-effective choice. However, due to the density of water1000kg/m3, currently the area of large-sized photovoltaic modules is about 2.6m (which may be even larger), and the maximum pressure applied is generally 5400pa. Simply using water to apply pressure, with a height exceeding 50cm, is very unstable and difficult to operate.
The three standards IEC 61215-1, IEC 61215-1-1, and IEC 61215-2 play an extremely important role in the field of photovoltaic testing and certification