This paper introduces the structure and working principles of electrical switches and its functions in verification devices of meteorological instruments. Then, some failures of electrical switches and its occurrence cause are comprehensively analyzed. Meanwhile, the processes of failure maintenance are described in detail.%文章介绍了气象仪器计量检定设备中电气开关的结构、工作原理以及在计量设备中所起的作用,对几起电气开关故障的现象、发生原因进行了综合分析,并对故障修复的过程进行了详细叙述。
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