Posted on 10/15/2021
WHAT IS SURGE PROTECTION DEVICE PROTECTION MODE?
Surge protection device (surge arresters, surge protectors, SPD) can be connected to between the L (phase), N (neutral), PE (protection line), such as L-L, L-N, L-PE, N-PE, these connections is called protection mode, which has relation of power supply system grounding type.
According to IEC61643-11:2005, the grounding type of power supply system can be divided into: T...