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相导线
[电] phase conductor
- 提高避雷线保护的有效性可以通过减小避雷线—相导线间隙击穿概率来达到。
Effective shielding can be achieved by reducing the breakdown probability of the gap between shielding wire and phase conductor. - 接地故障保护。当一个或多个相导线与地之间出现电气故障时，接地故障保护通过跳脱断路器或报警来示警。
This function trips (opens) a circuit breaker or sounds an alarm in the event that there is an electrical fault between one or more of the phase conductors and ground (earth). - 若系统中性点不接地，一相导线接地时，其它相上的避雷器必须能在全线电压下动作以及动作后的熄弧。
If the system neutral is not grounded at all, and a ground occurs on one conductor, the arresters on the other phases may have to operate and cease conduction with full line-to-line voltage.
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