1761-L20AWA-

1761-L20AWA-

1761-L20AWA-

1761-L20AWA-

1761-L20AWA-

第二级电源防雷器采用C类保护器进行相—中、相—地以及中—地的全模式保护，主要技术参数为：雷电通流容量大于或等于40KA(8/20μs)；残压峰值不大于1000V；响应时间不大于25ns。

    3、第《联系人；欧先生》
《座机：0592-5709825》
《传真：0592-5917519》
《24小时热线：18030229053微信同步》
《QQ  ：2479261344》
《QQ邮箱：2479261344@qq》
三级保护

目的是 终保护设备的手段，将残余浪涌电压的值降低到1000V以内，使浪涌的能量有致损坏设备。

在电子信息设备交流电源进线端安装的电源防雷器作为第三级保护时应为串联式限压型电源防雷器，其雷电通流容量不应低于10KA。

的防线可在用电设备内部电源部分采用一个内置式的电源防雷器，以达到完全消除微小的瞬态过电压的目的。该处使用的电源防雷器要求的 大冲击容量为每相20KA或更低一些，要求的限制电压应小于1000V。对于一些特别重要或特别敏感的电子设备具备第三级保护是必要的，同时也可以保护用电设备免受系统内部产生的瞬态过电压影响。

对于微波通信设备、移动机站通信设备及雷达设备等使用的整流电源，宜视其工作电压的保护需要分别选用工作电压适配的直流电源防雷器作为末级保护。

    4、根据被保护设备的耐压等级，假如两级防雷就可以做到限制电压低于设备的耐压水平，就只需要做两级保护，假如设备的耐压水平较低，可能需要四级甚至更多级的保护。第四级保护其雷电通流容量不应低于5KA。

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