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什麼是SPD?

Surge Protective Device(SPD):电涌保护器,又称浪涌保护器,或称过电压保护器,俗称防雷器或避雷器。主要用于保护用电设备免遭雷电电磁脉冲或操作过电压破坏。它能将窜入电力线、信号传输线的瞬时过电压限制在设备或系统所能承受的电压范围内,或将强大的雷电电流泄流入地,从而保护被保护的设备或系统不受冲击而损坏。