The new standard GB/T18802.11-2020 for surge protector testing has upgraded the performance requirements and testing methods of the old version of GB 18802.1-2011, Part 1, Low Voltage Surge Protectors (SPD) for low-voltage distribution systems. The writing method has been changed, many new parameters have been added, and the testing methods, steps, and judgment requirements for some parameters have been changed. At the same time, some new experimental items have been added, Old experimental projects have also been deleted. After the implementation of the new standard for a period of time, several of our laboratories have encountered many issues with the new standard, as well as bugs in manufacturing SPD according to the new standard. By translating foreign standards into national standards in this way, it is difficult to avoid errors in published standards without extensive testing experience and a clear understanding of the testing phenomena and results generated by thousands of domestic products. We will use five to six special sections to provide detailed explanations on the differences and error prone issues of the new standard. If you have any other questions, please leave a message and we will organize necessary materials to explain additional topics
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