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- Jun 28, 2018 -


The shortest spatial distance measured between two conductive parts or between the conductive part and the equipment protection interface. That is, the shortest distance of insulation can be achieved through the air under the condition that the electrical performance is stable and safe. The size of the clearance is not related to aging. Clearance can withstand high over-voltage, but when the over-voltage value exceeds a certain critical value, this voltage will quickly cause electrical breakdown, so when confirming the size of the electrical gap must be the largest internal device may appear And external overvoltage.