This paper introduces a new type vacuum circuit-breaker by analyzing the current mine flameproof feed switches. The advantages of it as the inner element for the flameproof feed switch are expatiated.
本文在分析国内矿用隔爆馈电开关现状的基础上介绍了一种新型真空断路器，并阐述其作为隔爆馈电开关内装元件的优越性。
Thus, it is significant to improve the flameproof feature on this type enclosure used in coal mine.
同时，对其在煤矿井下的安全应用提供了有力的保证。
Thus, it is significant to improve the flameproof feature on this type enclosure used in coal mine.
同时，对其在煤矿井下的安全应用提供了有力的保证。
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