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自从法拉弟发明避雷针以来,有效地减少了雷电灾害。造成雷灾的三种雷是:直击雷、感应雷和球形闪电。避雷针、避雷带等接闪装置通过接地系统将雷电电荷引入地下。认真执行建筑物防雷规范(GB500057—94),可以基本避免直击雷对建筑物及建筑内人员的危害。但是,当今雷灾往往与高科技的发展、普及同步,呈迅速增长之势。原因是微波通讯、计算机网络、邮电通讯线路、电视机和 VCD 等设备日益普及到办公室和家庭内。当直击雷通过接闪
Since Faraday’s invention of lightning rods, lightning disasters have been effectively reduced. The three types of thunder that caused the thunderstorm were: direct lightning, inductive lightning, and spherical lightning. Lightning arresting devices such as lightning rods and lightning protection belts introduce lightning charges into the ground through a grounding system. Seriously implementing the building’s lightning protection specifications (GB 500057-94) can basically avoid direct damage to buildings and building personnel. However, today’s thunderstorms are often synchronized with the development and popularization of high technology, and they are rapidly growing. The reason is that microwave communications, computer networks, post and telecommunication lines, televisions, and VCDs are becoming increasingly popular in offices and homes. When direct lightning strikes through lightning