How to Check Lightning Arrester?
1. Square Wave Current Screening Test
The shock current waveform is 2ms square waves, and the time interval between the 2m wave shock is 30s ~60s.
The purpose of the square wave current screening test is to remove bad products in MOV products.
2. Residual Pressure Test
2.1 Named Lightning Intellectual Pressure Test
The current waveform is 8/ 20 us standard lightning waves. The current waveform and amplitude deviationshall comply with the provisions of Article 8.3.2 of GB11032 and GB/T16927.1.
2.2 Operation Impact Current Under The Residual Pressure Test
The operating wave of the current waveform is 30/ 60 us. The current waveform and amplitude deviation shallcomply with the provisions of Article 8.3.3 of GB11032 and GB/T16927.1.
3. Large Current Impact Tolerance Test
The current waveform is 4/10 us, and the current waveform and amplitude deviation shall comply with theprovisions of GB11032 8.5, GB/T 16927.1. The MOV test products extracted by this test shall not be used according to normal products after the test.
4. Accelerate Aging Test
The lightning arrester testing method is performed by the provisions of GB11032 8.6.2, and 3 pieces of resistance tablets are randomly selected every quarter. During the test process, the voltage change is not greater thant 1%, thetest temperature is 115 O C, and the time is 1000H. To effectively monitor the aging performance of all specifications of resistance tablets, the resistance of various specifications must be raised at least once ayear to accelerate the aging test.
The MOV test products extracted by this test shall not be used according to normal products after the test.
As a trusted and experienced metal oxide varistor manufacturer, we recognize the critical role that MOVs playin protecting electronic systems from voltage surges. By thoroughly understanding the testing methods for MOV varistors, including MOV blocks and their cores, you can ensure the reliability and performance of theseessential components. From inspecting for damage to conducting accurate resistance tests, our comprehensive guide provides valuable insights to successfully test MOV varistors. By following these recommended procedures, you can enhance the longevity of your electronic systems and prevent potentialdamages. Trust in our expertise and make use of our comprehensive testing methods to guarantee the optimal performance of your MOV varistors and safeguard your valuable electronic devices.
If you want to know more about building lightning arrester testing procedure, please visit our website.
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