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 08:35, 20 August 2024

72 bytes added ,  20 August
→‎辨异
 
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: 非高380V 电阻率地区机，避雷针接地电阻不大绝缘小于 10Ω0.5Ω，则判断电机受潮
: I 类工具绝缘电阻不超过 2Ω
: 非高电阻率地区，避雷针接地电阻不大于 10Ω
 
 
; V
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