Industry News

Franklin

As a pioneer of electricity, Franklin for the first time in the history of electricity explicitly proposed a consistent theory of electricity, namely the famous first-class theory (or single-fluid theory). Think of two distinct fluids. In atmospheric electricity, he was the first to discover that li…

"Artificial Lightning" Effective Means to Affect Weather

At a troop training base in Binzhou, Shandong Province, experts from the Chinese Academy of Sciences and the Chinese Academy of Meteorological Sciences conducted a special experiment and successfully introduced airborne lightning to the ground through a small rocket. It is understood that at present…

Basic knowledge of lightning protection and grounding safety

1. There are two basic forms of lightning overvoltage: The first is: direct lightning-also known as direct lightning Second is: Lightning induction-also known as induction lightning 2. The role of the air-termination device: The lightning receptor is a metal body used to receive direct lightning str…

Lightning protection of weak current system

Multi-level classification (class) protection principle According to the different functions of electrical and microelectronic equipment, different protected programs and their protective layers, the protection points are determined for classified protection; according to the electrical path that li…

Six elements of building lightning protection design

Lightning protection is a systems project. As early as 1960, when Mr. Wang Shizheng summarized the electrical engineering of the Great Hall of the People and wrote the book Lightning Protection Design of Buildings, he proposed six important factors for building lightning protection design, which pla…

Basic knowledge of lightning protection—term explanation

Direct lightning strike: Lightning strikes directly on a building, producing electrical, thermal, and mechanical forces. Lightning induction: During lightning discharge, the electrostatic induction and electromagnetic induction on nearby conductors may cause sparks between metal parts. Lightning wav…

Learn the basic skills of lightning protection

Keywords: lightning protection, lightning protection for buildings 1995 The book Basics of Modern Lightning Protection Technology, published by Tsinghua University Press in 1995, played a role in the popularization of lightning protection technology, but some plausible expositions have misled some …

Thunder lightning

Thunder and lightning is a majestic and somewhat daunting discharge phenomenon accompanied by lightning and thunder. Thunder and lightning generally occur in cumulonimbus clouds with strong convection, so they are often accompanied by strong gusts and heavy rain, and sometimes hail and tornadoes. Th…

Thunderstorms

Thunderstorms often occur at the turn of spring and summer or on hot summer days. When the stratification in the atmosphere is unstable, strong convection is easy to occur. When the potential difference between the clouds and the clouds and the ground reaches a certain level, discharge will occur. S…

Install miniature circuit breaker or switch before SPD

Question: Recently, I saw the wiring mode of the miniature circuit breaker installed in front of the surge protector. When connected in parallel with the switch, some are connected to the upper end of the circuit breaker Lower end (actually I want to ask whether the surge protector is connected abov…