Difference between revisions of "怎样考取低压电工证理论篇"

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怎样考取低压电工证理论篇 (view source)

Revision as of 08:58, 20 August 2024

170 bytes added ,  20 August
→‎术语
* RCD：剩余电流动作保护器。假设 RCD 为 5，漏电值小于 5，就认为是正常泄漏；漏电值大于 5，就认为发生了事故，自动切断或报警。RCD 值为工作时的最小电流值。
* SELV：(safetyextra-lowvoltagecircuit) 电路，安全特低电压电路。经特殊设计，一般 SELV 设备上带电不会超过安全电压。
 
== 判断 ==
* 设备漏电，应迅速用绝缘棒拉开隔离开关断开电源，再用二氧化碳灭火器或干粉灭火器灭火。错：应该先断开断路器
 
== 存疑 ==
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