归根结底，电弧持续时间越短，触头越不易烧熔，维修量越少，而断路器性能越好。
Shorter ARC durations ultimately mean less contacts burning, resulting in less maintenance and a better breaker.
归根结底，电弧持续时间越短，触头越不易烧熔，维修量越少，而断路器性能越好。
Shorter ARC durations ultimately mean less contacts burning, resulting in less maintenance and a better breaker.
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