Selection Of Voltage Protection Level (up) Value Of Surge Protector
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The voltage protection level of surge protective device should not exceed the surge voltage rating of the protected equipment. The voltage protection level of surge protector requires good coordination with the insulation of the protected equipment.
In low-voltage power supply and distribution system installations, all surge protection device devices must have a certain surge tolerance, i.e., the ability to withstand surge overvoltages.
The peak current of an 8/20 μs current wave flowing through the SPD is used for Class II classification testing. Imax and In have many similarities in that they both use the peak current of an 8/20 μs current wave to test the SPD for Class II classification.
