A motor that is be directly coupled to a fan-blade or blower-wheel load is to be operated at the applicable test voltage and under no-fan,no-load conditions with the shaft running free.

 
  • 直接与风机叶片或鼓风机叶轮相连的电机将在合适的测试电压及无风叶无负载轴自由运转的条件下工作.
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