Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
GB/T 18802.351-2019 |
Components for low-voltage surge protective devices-Part 351:Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT) 低压电涌保护器元件 第351部分:电信和信号网络的电涌隔离变压器(SIT)的性能要求和试验方法 |
China National Standards devices-Part |
![]() English PDF |
GB/T 18802.22-2019 |
Low-voltage surge protective devices-Part 22:Surge protective devices connected to telecommunications and signalling networks-Selection and application principles 低压电涌保护器 第22部分:电信和信号网络的电涌保护器 选择和使用导则 |
China National Standards devices-Part |
![]() English PDF |
GB/T 18802.351-2019 |
Components for low-voltage surge protective devices-Part 351:Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT) 低压电涌保护器元件 第351部分:电信和信号网络的电涌隔离变压器(SIT)的性能要求和试验方法 |
China National Standards devices-Part |
![]() English PDF |
GB/T 18802.22-2019 |
Low-voltage surge protective devices-Part 22:Surge protective devices connected to telecommunications and signalling networks-Selection and application principles 低压电涌保护器 第22部分:电信和信号网络的电涌保护器 选择和使用导则 |
China National Standards devices-Part |
![]() English PDF |
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