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Why do photovoltaic systems need surge protectors? As solar panels are usually exposed, their related equipment and components will be

Brief description of surge protector: Surge protector (surge protector) is also known as lightning protection device (SPD for short). It

TN-C-S system: The TN-C-S system is a three-phase five-wire system, and the colors of the five wires are yellow L1,

How to choose the surge protective device(SPD)? 1) Power supply SPD installation location: According to the regulations of relevant standards and

Estimation of the shortest service life of SPD power supply lightning protection device SPD power supply lightning protection device, since

Each power SPD is marked with a Uc=xxxV, we must understand the meaning of Uc when selecting SPD products, the

With varistor as the core non-linear component SPD, during normal use, the leakage current of the varistor is increased from

1. There are currently three main types of SPD for signal networks: 1) Antenna feeder signal protector The short circuit principle of