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前端摄像机立杆点装防雷器有用吗?

前端摄像机立杆点装防雷器有用吗?

发布日期:2018-09-13 作者: 点击:

监控系统对可能影响社会公共安全、财产等突发事件进行监控主要起到事后调查取证的作用。在这雷雨季节,前端摄像机如果没有良好的防雷击浪涌的功效,就会为后期事故的发生带来隐患。因为摄像机的损坏可能导致整个系统出现非常规运转,对公共安全和人身财产安全构成潜在威胁。然而,许多“专业防雷厂家”介绍,要在立杆避雷针摄像机端和主机视频输入点安装他们的“防雷器”或浪涌保护器。这有用吗?曝光的案例是:连防雷器一起被烧毁。

管家婆精选心水资料站  PIEKAISHEXIANGJIFANGLEIANZHUANGSHEJIBUSHUO,XIAOFEIZHESHOUXIANYAOLEJIEDEHAISHIFANGLEIQIJIEGOUZHEIKUAI。

  SHOUXIAN,BILEIQIWAIXINGCHICUN。ZHIZAOBILEIQIJUNANHUNEIWAILIANGYONGTIAOJIANJUEDINGQICITAOJUEYUANQIANGDU,QIWAIXINGCHICUNYUFAPIANCAILIAOYOUGUAN。DANGQIYONGYUJIAKONGXIANLUHUOHUWAIBIANPEIDIANSHEBEISHI,YINQIXIANGJIANJUDA,BILEIQIWAIXINGCHICUNBUHUIDAILAIBULIANGYINGXIANG。HUNEISHOUCHESHIKAIGUANJUYINQITIJICHICUNJIAOXIAO,BILEIQIWAIXINGCHICUNDASHIHUIDAILAIBULIANGYINGXIANG。

  TANHUAGUIBILEIQIDESiCFAPIANQIDANWEITONGLIURONGLIANGJINWEIZnOFAPIANDE1/4,ZAIXIANGTONGTONGLIUNENGLI(5kA)TIAOJIANXIA,SiCFAPIANZHIJINGJIAODA,BILEIQIWAIJINGYEDA;ZAIXIANGTONGEDINGDIANYAHECANYATIAOJIANXIA,TANHUAGUIBILEIQIGAODUBIYANGHUAXINBILEIQIDA。YOUYI35kVJIDEGENGWEIXIANZHU。RUJYN1-35XINGSHOUCHEJUDE112FANGAN,YUANYONGFYZ1-35XINGWUJIANXIYANGHUAXINBILEIQI,GAOJIN650mm,ZHUANGZAIJUHOUBUGESHINEIJIANYISHOUCHESHANG,SHANGBUYOUGELICHATOU,YINGAICHANPINYITINGCHAN,GONGCHENGSHEJIJIANCHIGAIYONGFZ3-35XINGTANHUAGUIBILEIQI,GAO1500mm,GESHIGAODUBUGOU,ZHIDEJIANGMUXIANSHIYUGESHIJIANGEBANQUXIAO,BILEIQIZHIJIEYUZHUMUXIANXIANGLIAN,ZHEIYANGBILEIQIDECESHIHUOGENGHUANXUYAOZAIZHENGDUANZHUMUXIANDUANDIANXIAJINXING,YUNXINGWEIHUKUNNAN,ERBILEIQIWAIJINGJIAODA,XIANGJIANKONGQIJINGJUBUGOU,JIAZHUANGDEXIANGJIANJUEYUANGEBAN,YOULAOHUASHOUCHAOJUEYUANSHIGUYINHUAN。YANGHUAXINBILEIQIWAIJINGHEGAODUXIANGDUIJIAOXIAO,35kVJIHAIKEZUOCHENGXUANGUASHI,RUY5CZz-42/110LXINGCHUANLIANJIANXIYANGHUAXINBILEIQI,GAODUJIN640mm。XIAOXINGHUABILEIQIGENGYOULIYUSHOUCHEJUNEIANZHUANGSHIYONG。

  QICI,BILEIQIXINGNENGJIAGEBI。WUJIANXIYANGHUAXINBILEIQIDEFAPIANYUNXINGZHONGZHANGQICHENGSHOUDIANWANGDIANYA,GONGZUOTIAOJIANYANKU,CHANPINZHIZAOSHIYAODUIFAPIANYANGECESHISHAIXUAN,HEGELVDICHENGBENGAO,GUJIAGEYEGAO;YINTAYOUZANTAIGUODIANYACHENGSHOUNENGLICHADEZHIMINGRUODIAN,BUSHIYUZAIWOGUO3~35kVDIANWANGZHONGTUIGUANGSHIYONG。CHUANLIANJIANXIYANGHUAXINBILEIQIYINYOUJIANXI,DADAGAISHANFAPIANZHANGQIGONGZUOTIAOJIAN,CHANPINZHIZAOSHIDUIFAPIANCESHISHAIXUANYAOQIUXIANGDUIDIXIE,HEGELVGAOCHENGBENDI,JIAGEYEJIUBIANYI,CHUANLIANJIANXIYANGHUAXINBILEIQIJIAGEBIWUJIANXIYANGHUAXINBILEIQIPUBIANBIANYI,YOUSHIYEBITANHUAGUIBILEIQI(RU3~10kVDEFZXING)BIANYI,TONGSHITADUIQITAFANGLEIQIJIANDOUYOUYANGZHANGBIDUANZUOYONG,SHIWEIDANGDAIZUIXIANJINFANGLEIDIANQI,JUYOUGAODEXINGNENGJIAGEBI,SHIBILEIQIGENGXINHUANDAIDEPUJIHETUIGUANGCHANPIN。

  再次,避雷器使用寿命与许多因素有关,除制造质量,密封失效受潮及其它外界因素外,避雷器阀片的老化速度是影响寿命的关键因素。碳化硅避雷器因其动作和负载重,续流大,动作特性稳定差,可能遭受暂态过电压危害等原因,加速阀片老化,寿命不长,一般7~10年,甚致有仅3~5年的。无间隙氧化锌避雷器的阀片长期承受电网电压,工作条件严酷,拐点电压低,动作频度大,还可能遭受暂态过电压危害,温度热损伤等原因,迅速加快阀片老化,寿命较短,有的比碳化硅避雷器还短。串联间隙氧化锌避雷器的间隙可保证阀片只在过电压保护动作过程承受高电压,时间极短(100μs内),在其它情况下阀片对于电网电压,或处于隔离状态(纯间隙时),或处于低电位状态(复合间隙电阻分压),大大改善阀片长期工作条件,还可免受暂态过电压危害和温度热损伤,保证阀片温度不超过55℃,从而保证避雷器寿命达20年以上。武汉防雷器

  NEIME,ZAILEJIEFANGLEIQIGUYOUXINXIHOU,ZAISHEXIANGJIANZHUANGZHEIKUAIJIUNENGXIANGDUIRENZHI。

  1)先看前端串接在摄像机输出端的视频信号防雷器管家婆精选心水资料站:防雷器上端接视频线的输入输出,另有一个接地点常态下与视频线开路(有的产品做成了常态短路),高压时内部元件将视频线短路接地泄放雷电流。

  这里应该注意到:摄像机立杆接闪时,视频信号防雷器放电通道是:“避雷针体—摄像机—视频短线—防雷器内部放电元件短路—接地点—接地网”;接闪时,避雷针体与防雷器这两个“雷电流放电通道”是并联向地网放电的。

  2)LIGANBILEIZHENJIESHANSHI,JUDADEFANGDIANDIANLIUZAIBILEIZHENTISHANGXINGCHENGJUDADE“LEIDIANFANJIDIANYA”;SHIPINXINHAOFANGLEIQIDESHANGDUANYETONGYANGJIAYOUZHEIGE“LEIDIANFANJIDIANYA”。RUGUOZHEIGEFANGLEIQINENGGOUBA40WANFUYISHANGDE“LEIDIANYA”,XUEJIANDAOSHIJIFU、JIFUYIXIA,NEIMEZHEIGEFANGLEIQIXIEFANGLEIDIANLIUDENENGLIBIXUDADACHAOGUOBILEIZHEN,SHILEIDIANLIU“ZHUYAOTONGGUOFANGLEIQIXIEFANG”,ERBUSHIZHUYAOTONGGUOBILEIZHENXIEFANG。HENNANXIANGXIANG,“FANGLEIQIYONG≥2.5mm2DEJUEYUANDUOGUTONGXINHUANGLVSERUANXIANZHIJIEYUDIWANGLIANJIE”,TADEFANGDIANNENGLINENGYUANYUANCHAOGUOJINSHULIGAN?XIANRANBUKENENG,HOUGUOZHINENGSHI“YINLEIZIHUI”。

  3)“专业防雷厂家”介绍的防雷器都是防感应雷的,没有介绍可以有效防“雷电反击电压”而又不被烧毁的。但是他们积极推出的“安防防雷系统设计”却敢于这么应用,说明这类设计缺乏起码的安防系统概念。如果真有这么厉害的防雷器,那避雷针就可以不用了。

管家婆精选心水资料站  4)BA“LEIDIANFANJIDIANYA”ZHIJIEYINRUANFANGXITONG,DAODISHIFANGLEIHAISHIYINLEI?DUIZHEIGEWENTI,LIANGNIANDUOLAIDEANFANGLUNTANZHUIZONG,MEIYOUYIGE“ZHUANYEFANGLEICHANGJIA”NENGZUOCHUZHENGMIANJIESHI,TAMENYILVCAIQUHUIBITAIDU。DAOMUQIANWEIZHI,ZHIJIANGUOYIXIE“ZHUANYEFANGLEICHANGJIA”,CHANGDAOANFANGGONGCHENGZHEIYANGSHEJIHEYINGYONG,MEIYOUJIANGUONAGEZHUANYECHANGJIADEFANGLEIQI(LANGYONGBAOHUQI)CHANPINGANYUXUANCHUAN“XIEFANGLEIDIANLIUDENENGLIKEYICHAOGUOBILEIZHEN”,KEYIANQUANDEXIANZHI“LEIDIANFANJIDIANYA”。


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关键词:武汉防雷器,防雷器安装,武汉防雷器安装

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