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
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: 非高电阻率地区,避雷针接地电阻不大于 10Ω
: 10kV 配电容量时,接地电阻不大于 10Ω
: 防静电的接地电阻要求不大于 100Ω
; V
: 常用交流接触器最高工作电压 380V,矿用 600V,说 6000V 太夸张了
: 低压绝缘材料的耐压等级一般为500V
: 电工使用的带塑料套柄的钢丝钳,其耐压为 500V 以上
.
; Hz
: 10kV 以下,安全距离为 0.35 米
;
120
℃
: 绝缘材料的耐热等级为E级时,其极限工作温度为 120 ℃.
; 互感器
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