6场半全场中奖条件是
 
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THGB-1000/25 high-voltage cut-off switch

   Nominal voltage: 25kV
   Rated voltage: 33kV
   Rated current: 1000A
   Short-time withstand current: 20kA/1s
   Mechanical service life:  20000 times

   Such product can optimize operation condition of high-voltage equipment. Faulty part will be isolated effectively in case of failure of roof-mounted equipment, locomotive will continue to run. Therefore, its assembly can reduce accident frequency caused by failure of roof-mounted equipment and improve reliability of locomotive operation.

 
 
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6场半全场中奖条件是