摘要
雷电产生是由于云层中电荷中和作用是会产生大量的热量和光,雷电现象属于一种自然现象,目前人类生活中无法避免这种现象,只能在实际运用中做防护处理。浙江宁波作为一个雷电高发地区,每年由于雷击现象直接或间接所造成的经济损失不计其数。雷击危害一般分为两大类:1)雷直接击中在建筑上发生热效应和电动力作用,2)雷电二次作用即雷电流产生静电和电磁感应。防雷设施主要包括内部防雷和外部防雷,外部防雷主要由避雷针、引下线、接地体、法拉第等部分组成;内部防雷主要由电源线防护、信号线防护、均压等电位等部分组成,落实每个部分对防雷起着重要作用,缺一不可,这对于保障楼宇建筑中智能化设备的安全,减少经济损失,有着深远的意义。
Lightning generated due to cloud cover charge and will generate a lot of heat and light,lightning phenomenon is a nat ural phenomenon,human life can not avoid this phenomenon,can only be done in the practical application of protective treat ment.Ningbo,Zhejiang province as a lightning high prone areas each year due to the lightning phenomenon,directly or indirect ly,the economic losses caused by countless.The lightning hazards are generally divided into two categories: 1) Ray direct hit in the thermal effect on the construction and electrical power role,2) lightning secondary role that the lightning current to generate static electricity and electromagnetic induction.Mine facilities,including the internal the Lightning and external lightning protec tion,external lightning protection part by the lightning rod,deflectors,grounding,Faraday;internal lightning protection mainly by the power cord and signal line protection,equalizing equipotential parts,plays an important role in the implementation of each part of the lightning,indispensable,and safety equipment for the protection of building intelligent,and reduce economic losses,and has far-reaching significance.
出处
《电脑知识与技术》
2012年第9X期6584-6585,共2页
Computer Knowledge and Technology
关键词
雷电
避雷针
引下线
接地装置
智能化
lightning
lightning rod
deflectors
grounding device
intelligent