GB 16895.22-2004

Electrical installations of buildings — Part 5-53: Selection and erection of electrical equipment — Isolation, switching and control — Section 534: Devices for protection against overvoltages

建筑物电气装置第5-53部分：电气设备的选择和安装隔离、开关和控制设备第534节：过电压保护电器

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GB

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