不能暴晒、洪烤、熨烫，避免造成发热线绝缘损坏。
Do not insolate , firing or iron the fir pad to avoid damage the insulator of heating conductor.
变频牵引电机端子过电压是导致电机绝缘损坏的主要原因。
Overvoltage is one of the main causes of damage in the isolation of inverter-fed traction motors.
结果表明：随着绝缘损坏量的增加，反射系数的变化率加快；
The results show that the rate of reflection coefficient increases with the increase of frayed wire insulation.
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