Look at the quality of the surge protector, to see whether it can complete his basic specification, relative to the surge protector of the primary specification is whether the surge operating voltage can be constrained to below the required value, the surge protector must discharge the lightning current at the end of this mission, this specification must be completely completed, otherwise the surge protector itself will be damaged, the foundation can not complete its primary mission.
Due to the uncertainty of lightning strikes, the surge protector must be connected for a long time when the guaranteed circuit is operating, and the surge protector should not deteriorate, damage or disconnect under the long-term operation voltage effect, and it can not be interrupted by short circuit to interrupt the operation of the guaranteed circuit.
In order to be satisfied with the above specifications, several technical parameters should be manipulated
1. The degree of guarantee of UP operating voltage. Generally speaking, the lower the degree of operation voltage guarantee, the better the guarantee effect, as long as the degree of operation voltage guarantee is not necessarily lower when interstage cooperation, the better.
2. Through-flow capacity. Generally speaking, the higher the through-current capacity, the better the safety performance under lightning, but the higher the through-current capacity, the higher the operating voltage guarantee degree and price of the surge protector.
3. The continuous operating voltage of UC surge. Generally speaking, the higher the maximum continuous operation voltage of the surge protective device, the better the long-term safety performance, but the higher the maximum continuous operation voltage, the higher the degree of operation voltage guarantee.
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