Purpose

1.1 the rated voltage of low voltage series open knife switch, transfer switch and transfer switch (hereinafter referred to as knife switch and knife transfer switch) is AC 50 hz.380 V, and the rated current is 630 a. In the power distribution equipment of industrial enterprises, it is used to manually connect or disconnect lines infrequently or as disconnector.

1.2 normal working conditions of knife switch and knife switch: A. altitude not more than 1000m; B. ambient air temperature not more than + 40C and not less than – 30C; C. relative humidity of air not more than 85%; D. in medium without explosion risk and without gas and dust (including conductive dust) sufficient to corrode metal and damage insulation; e. place without significant shaking and shock vibration.