摘要
老君山中灵索道,不但架空线路长,而且位于雷暴多发区。其控制系统多为弱电设备,一旦索道的防雷措施不到位,人员和索道设备很容易遭受雷击。依据当地景区索道的雷灾历史、景区的地形特征、小气候特征、雷暴的气候学特征和2009-2011年的闪电定位资料,通过对雷电可能对栾川老君山景区索道造成的危害、雷电侵入途径以及致灾原因的分析,提出了根据景区地理、环境、气象和雷电活动特点,将外部的直击雷防护与内部的防雷电过电压、等电位、屏蔽以及完善的接地防护技术措施协调统一、进行综合防护的解决方案。该方案在栾川老君山风景区中灵索道防雷工程实施后,防雷效果良好。
The Laojun mountain cableway not only has the long overhead lines, but also lies in a thunderstorm-prone area. Most of its control system is weak current equipment, once the cableway is lack of lightning protection measures, personnel and the cableway equipment are easy to be struck by thunder. Based on the local lightning disaster history, terrain, microclimatic characteristic, thunderstorm climato- logical characteristic and the lightning location from 2009--2011, this paper analyzes the lightning disas- ter, lightning invasion way and reasons of Laojun mountain scenic spot. According to the local geogra- phy, environment, meteorology and the lightning activity characteristic, the external direct lightning pro- tection should keep coordination and comprehensive protection with internal lightning overvohage, equi-potent, screening and perfect grounding protection technology. Through the practical application, the scheme has a good lightning protection effect on cableway lightning engineering in Luanchuan Laojun mountain scenic spot.
出处
《气象与环境科学》
2012年第4期77-84,共8页
Meteorological and Environmental Sciences
基金
气象行业标准<索道防雷技术规范>(QX/T-2011-12)项目资助
关键词
索道防雷
直击雷
雷电过电压
屏蔽
等电位
接地
cableway lightning protection
direct lightning
lightning overvohage
screening
equi-potent
grounding
