Copper contact arm for high voltage vacuum circuit breaker
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Contact arm is one of conductive parts in VCB. Find more detail information about vacuum circuit breaker contact arm, red copper contact arm from contact arm - Wenzhou VACEM Technology Co., Ltd.
General description
The vulcanized arm produced by our company can cancel the sleeve of the arm,reduce the structure of the product,and facilitate the realization of miniaturization of the switch.The thickness of the vulcanized layer is 2-4mm,which can withstand 20 thousand volt power frequency withstand voltage per millimeter.
A. Ordering instructions for contact arm:
1.Rated current
2.Description of mating contacts.
3.Contact arm type and mounting hole size.
4.Whether to adopt the vulcanization process.
Normal Conditions
1) The altitude does not exceed 1000m
2) The ambient temperature is between -30°C to +40°C, the daily mean temperature is no greater than 30°C.
3) The daily mean relative temperature is no greater than 95%.The monthly mean relative temperature is no greater than 90%.
4) The installation area should be without the dangerous mediums which affect the conductive propertied and the insulating performance of the products, such as steam ,gas, chemical corrosive deposit, salt spray, dust, dirt, and so on.
5) There should be no frequent vibration and serious jolt.
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