The lightning rod actual quoted Ray needles

4.1 lightning rod is quoted Ray needle

The lightning rod actual quoted Ray needles. Russia called for "air terminals", the United States and Britain called "conductive needle. Direct lightning strikes lightning protection devices called air terminals, example: compaq laptop battery lightning with lightning network, lightning conductor, Faraday cage and so on. The lightning rod is a kind of air terminals. The protective effect of the lightning rod is to intercept the lightning, the lightning playing in their own body, so that buildings avoid suffered a direct lightning protected. Lightning rod lightning energy safely imported into the ground along the tower or deflectors. The scope of protection of the lightning rod Bowls Act. The lightning rod upper space is quoted Ray airspace, the lower part of the space is the scope of its protection, so that does not directly struck by lightning.

A 4.2 lightning rod application environment

4.2.1 lightning rod lightning protection should not be used in the mountains, buildings

Often lateral lightning thunderstorm lower than the hills slopes. Should be used or lightning with a net.

4.2.2 lightning rod lightning protection should not be used in high-rise buildings

Press mine "specification" lightning rod height greater than 60 meters, the scope of protection of the rolling ball method invalid. Notebook battery elevated lightning rod upper part of a paragraph may itself be subject to lateral space (called a needle bar the sideswipe area) lightning. Elevated lightning rod Triggered Lightning ability elevated lightning rod the nearby ground lightning density than of the average lightning density (called the the lightning flashes District). Lightning or lightning with a network should be adopted in antenna Dell laptop battery with short needle lightning.

4.2.3 lightning rod should be used in the plain areas undersized Building Lightning Protection

5, high voltage of lightning induction and lightning electromagnetic pulse

5.1 lightning produce lightning induction high voltage and lightning electromagnetic pulse

Lightning rod lightning directly stroke prevention, protection of buildings. With the development of science and technology, a large number of electrical, electronic, microelectronic devices. Around the discharge channel in the thunder and lightning, electromagnetic induction, the lightning induced high voltage power line, signal transmission cable, Antenna lightning electromagnetic pulse discharge, damage caused by these lines of electrical, electronic, microelectronic devices.