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1. What's a surge protection device (SPD)?A surge or spike refers to a transient over-voltage that is far larger than the specified operating voltage. In essence, it is a strong impulse with the d...

2.1.20 Reference Voltage UrefIn the area where the volt-ampere characteristics of the metal oxide resistor will transition from the weak electric field area to the strong electric field area, a suitab...

2.1 Technical Term2.1.1. Lightning electromagnetic impulse (LEMP)It is a source of interference. Refers to the effect caused by lightning directly hitting the lightning protection device of a building...

Surge Protective Device is a device designed to protect against transient overvoltages, serving as an important component of the internal lightning protection system. According to its specific usage, ...

Since the energy of lightning strikes is very huge, it is necessary to gradually discharge the energy of lightning strikes to the ground through a hierarchical discharge method. The first-level lightn...

In lightning protection engineering, when arranging surge protectors, the connecting wires are required to be short and straight. However, in many cases at the construction site, the connecting wires ...

1. The development of the surge protector against lightningAs early as the 1950s and 1960s, surge protectors have been widely used in lightning protection design. Surge protectors were first called vo...

1. Installation of down-conductor and flashover conductor of external lightning protection deviceDown-conductor and lightning conductor should be in the correct position, and the laying should be smoo...