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防爆配电箱分电箱做重复接地的作用及注意事项

发布时间:2019-04-08 10:20:00 查看次数:

防爆配电箱分电箱做重复接地步骤:


1、SHOUXIANDEZAIPEIDIANXIANGZHOUWEIYONGφ50DUXINGANGGUANHUO50×50×5DUXINJIAOTIE,WANGDIDIXIADA1.5~2MISHEN;


辽宁11选52、SHANGMIANYONGDIANHANYIGENφ8~12GANGJINTOU,TOUSHANGZAIHANφ10DUXINLUOMU,YONG6mm2YISHANGDEJIEDIZHUANYONGDUOGURUANXIANYINZHIPEIDIANXIANGJIEDIXIANHEWAIQIAOSHANG;


3、ZHONGFUJIEDIDEZUOYONGDA,JI→DANGDIYAGONGDIANXITONGCAIYONGBAOHUJIELINGSHI,CHUGONGDIANBIANYAQIDEZHONGXINGDIANBIXUJINXINGXITONGJIEDIWAI,HAIBIXUZAILINGXIAN(YINGWEIPENXIAN)SHANGDEYICHUHUODUOSHANGTONGGUOJIEDITIZAICIYUDADIZUOLIANGHAODELIANJIE,ZHEIZHONGJIEDIJIUJIAOZUOZHONGFUJIEDI,YUANLIRUXIATU1-1SUOSHI。 


防爆配电箱分电箱重复接地原理图.jpg

4、ZHONGFUJIEDIJIKEYICONGLINGXIANSHANGZHIJIEJIEDI,YEKE(CONGJIELINGSHEBEIWAIQIAOSHANGJIEDI。KANQILAISHILIANGGENXIAN,SHIJISHANGZUIHOUDOUSHIZAIYIQI。


防爆配电箱分电箱重复接地的主要作用如下:


(1) 降低漏电设备外壳的对地电压:


辽宁11选5ZAIMEIYOUZHONGFUJIEDIDEBAOHUJIELINGXITONGZHONG,DANGDIANQISHEBEIWAIQIAODANXIANGPENGQIAOSHI,ZAICONGDUANLUDAOBAOHUZHUANGZHIDONGZUOQIEDUANDIANYUANDEZHEIDUANSHIJIANLI,SHEBEIWAIQIAOSHIDAIDIANDE,RUGUOBAOHUZHUANGZHIYINMOUZHONGYUANYINWEIDONGZUOBUNENGQIEDUANDIANYUAN,ZESHEBEIWAIQIAOJIANGZHANGQIDAIDIAN,DUIDIDIANYAJINSIDENGYUXIANGDIANYA。YOULEZHONGFUJIEDIHOU,JIUKEYIJIANGDILOUDIANSHEBEIWAIQIAODEDUIDIDIANYA,ERQIEZHONGFUJIEDIDIANYUEDUO,DUIJIANGDILINGXIANDUIDIDIANYAYUEYOUXIAO,DUIRENTIYEYUEANQUAN。


(2)减轻防爆配电箱零线断线时的触电危险和避免烧毁单相电气设备:


辽宁11选5ZAIMEIYOUZHONGFUJIEDISHI,RUGUOLINGXIANDUANXIAN,QIEDUANXIANDIANHOUMIANDEDIANQISHEBEIDANXIANGPENGQIAO,NEIMEDUANXIANDIANHOULINGXIANJISUOYOUJIELINGSHEBEIDEWAIQIAODOUCUNZAIJIEJINXIANGDIANYADEDUIDIDIANYA,ZHEIYANGKENENGHUISHAOHUIYONGDIANSHEBEI。ERQIECISHIJIEDIDIANLIUJIAOXIAO,BUZUYISHIBAOHUZHUANGZHIDONGZUOERQIEDUANDIANYUAN,HENRONGYIWEIJIRENSHENANQUAN,RUXIATU1-2SUOSHI。


防爆配电箱零线断线无重复接地.jpg

防爆配电箱零线断线有重复接地.jpg


辽宁11选5ZAIYOUZHONGFUJIEDIDEBAOHUJIELINGXITONGZHONG,DANGFASHENGLINGXIANDUANXIANSHI,SHIJISHANGCISHIYOUBAOHUJIELINGZHUANBIANWEIBAOHUJIEDI,DUANXIANDIANHOUDELINGXIANJISUOYOUJIELINGSHEBEIWAIQIAODUIDIDIANYAYAODIDEDUO,SUIRANHAIYOUWEIXIAN,DANSHIWEIXIANCHENGDUYIDADAJIANGDI,RUSHANGTU1-3SUOSHI。


(3)缩短防爆配电箱内保护装置的动作时间:


ZAIXIANGSIXIANZHIGONGDIANXITONGZHONG, BAOHUJIELINGYUZHONGFUJIEDIPEIHESHIYONG,YIDANFASHENGDUANLUGUZHANG,ZHONGFUJIEDIDIANZUYUGONGZUOJIEDIDIANZUBIANXINGCHENGBINGLIANDIANLU,XIANLUZUZHIJIANXIAO,JIADALEDUANLUDIANLIU,SHIBAOHUZHUANGZHIGENGKUAIDIDONGZUO,SUODUANGUZHANGSHIJIAN。ZHONGFUJIEDIYUEDUO,ZONGDEJIEDIDIANZUYUEXIAO,DUANLUDIANLIUJIUYUEDA,BAOHUZHUANGZHIDEDONGZUOSHIJIANJIUYUEKUAI。


(4)减轻或消除三相负荷严重不平衡现象时,零线上可能出现的对地电压:


DANGLINGXIANDUANXIANSHI,DIANYUANDEZHONGXINGDIANJIANGWEIYI,HUIDAOZHISANXIANGDIANYABUPINGHENG,CONGERDAOZHISANXIANGDIANLIUDEBUPINGHENG,SHIDELINGXIANDIANWEISHENGGAO,JICHENGXIANCHUWEIXIANDEDUIDIDIANYA。RUGUOYOULEZHONGFUJIEDI,JIANGJISANXIANGBUPINGHENGDIANLIUTIGONGYITIAOTONGLU。YINCI,KEYIJIANQINGHUOXIAOCHULINGXIANDUANXIANSHI,ZAILINGXIANSHANGKENENGCHUXIANDEWEIXIANDIANYA。


(5) 改善防爆配电箱内架空线路的防雷性能:


RUZAIJIAKONGXIANLUJINHUXIANDERENKOUFUJINHUOFENZHIXIANDEZHONGDUANCHUDELINGXIANSHANGSHIXINGZHONGFUJIEDI,DUILEIDIANLIUYOUFENLIUZUOYONG。YOUSHANGKEYIKANCHU,ZAIZHONGXINGDIANZHIJIEJIEDIDEGONGDIANXITONGZHONG,YINGTEBIEZHUYILINGXIANFUSHEDEZHILIANG,JIAQIANGDUILINGXIANDEXUNSHIJIANCHA,FANGZHILINGXIANDUANXIANGUZHANG。JIYUSHANGSHULIYOU,ZAISANXIANGSIXIANZHIXITONGZHONG,LINGXIANSHANGBUYUNXUZHUANGSHEKAIGUANHERONGDUANQI。


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