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圆柱型接地模块是一种以非金属材料为主的接地体,它由导电性、稳定性较好的非金属矿物和电解物质组成,增大了接地体本身的散流面积,减小了接地体与土 壤之间的接触电阻,具有强吸湿能力,使其周围附近的土壤电阻率降低,介电常数增大,层间接触电阻减小,防腐蚀性增强,因而能获得较小的接地电阻和较长 的使用寿命。
主要应用范围:
发电厂、变电站、开关站、高压输电线路、电气化铁路、电信、移动、通信基站、微波中基站、地面卫星接收站、雷达站等工作接地、接地和防雷接地;贵重仪器、计算机机房设备、邮电程控设备、广播电视设备电子设备等工作接地和保护接地;各种高层建筑及高大构筑物、名胜古建筑、高大纪念塔等防雷接地;石油输送管道及油气罐。
工作原理:
易燃易爆物质仓库防雷
接地模块内置镀锌接地扁钢(钢管、圆钢、角钢),将其与被保护的地线连接时,金属接地体与大地的接触面积增加,通过潮性作用,模块散流体随土壤结构层释放电解离子,而且由于接地模块具有很强、吸湿性和稳定导电性,因此,金属接地体与大地的接触电阻将减小,从而充分发挥接地模块的降阻使用。
本模块采用化学稳定非金属导体材料作为模块的导电介质,其导电性不受季节影响;能吸湿、能保持与土壤接触,接地电阻低;在高土壤电阻率地区,能很好降低地网接地电阻;大工频和冲击电流冲击,电阻稳定。
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