真人性23式(动)

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企业动态

TT、IT、TN-C、TN-S、TN-C-SDIYAJIEDIXITONGQUANMIANJIEXI


 低压配电接地系统要求根据具体的供电系统而做出正确的选择,而且对于电线、电缆的选择也有着较高的要求,如果不能符合要求将会造成不可估计的后果。

真人性23式(动)SUOYIGEDANWEIZAIJINXINGDIANQIGONGCHENGANZHUANGSHIBIXUDUIDIYAPEIDIANZHONGDEJIEDIXITONGGONGZUOJIYUGAODUDEZHONGSHI。

一、低压供电系统接地方式及其特点

DIYAPEIDIANXITONGDEJIEDIXINGSHIFENWEISANZHONG:TNXITONG、TTXITONGHEITXITONG。ZIMUBIAOSHIDEHANYISHI:DIYIGEZIMUBIAOSHIDIANYUANDUIDIDEGUANXI,DIERGEZIMUBIAOSHIDIANQISHESHIDEWAILUKEDAODIANBUFENDUIDIDEGUANXI,DISAN、SILIANGGEZIMUBIAOSHIZHONGXINGXIANHEBAOHUXIANDEZUHEQINGKUANG。

真人性23式(动)TTXITONGJIUSHIJIANGDIANQISHEBEIDEJINSHUWAIQIAOZUOJIEDIBAOHUDEXITONG;TNXITONGJIUSHIJIANGDIANQISHEBEIDEJINSHUWAIQIAOZUOJIELINGBAOHUDEXITONG。

 

 

(1)TT方式供电系统

TT FANGSHIGONGDIANXITONGSHIZHIJIANGDIANQISHEBEIDEJINSHUWAIQIAOZHIJIEJIEDIDEBAOHUXITONG,CHENGWEIBAOHUJIEDIXITONG,YECHENG TT XITONG。

真人性23式(动)DIYIGEFUHAO T BIAOSHIDIANLIXITONGZHONGXINGDIANZHIJIEJIEDI;DIERGEFUHAO T BIAOSHIFUZAISHEBEIWAILUBUYUDAIDIANTIXIANGJIEDEJINSHUDAODIANBUFENYUDADIZHIJIELIANJIE,ERYUXITONGRUHEJIEDIWUGUAN。

TTXITONGJIUSHIDIANYUANZHONGXINGDIANZHIJIEJIEDI,YONGDIANSHEBEIWAILUKEDAODIANBUFENYEZHIJIEJIEDIDEXITONG。TONGCHANGJIANGDIANYUANZHONGXINGDIANDEJIEDIJIAOZUOGONGZUOJIEDI,ERSHEBEIWAILUKEDAODIANBUFENDEJIEDIJIAOZUOBAOHUJIEDI。

TTXITONGZHONG,ZHEILIANGGEJIEDIBIXUSHIXIANGHUDULIDE。SHEBEIJIEDIKEYISHIMEIYISHEBEIDOUYOUGEZIDULIDEJIEDIZHUANGZHI,YEKEYIRUOGANSHEBEIGONGYONGYIGEJIEDIZHUANGZHI。

 

真人性23式(动)FUTUYI TTJIEDIXITONGSHIYITU

(2)TN方式供电系统

真人性23式(动)TN FANGSHIGONGDIANXITONG ZHEIZHONGGONGDIANXITONGSHIJIANGDIANQISHEBEIDEJINSHUWAIQIAOYUGONGZUOLINGXIANXIANGJIEDEBAOHUXITONG,CHENGZUOJIELINGBAOHUXITONG,YONG TN BIAOSHI。TADETEDIANRUXIA。

YIDANSHEBEICHUXIANWAIQIAODAIDIAN,JIELINGBAOHUXITONGNENGJIANGLOUDIANDIANLIUSHANGSHENGWEIDUANLUDIANLIU,ZHEIGEDIANLIUHENDA,SHI TT XITONGDE 5.3 BEI,SHIJISHANGJIUSHIDANXIANGDUIDIDUANLUGUZHANG,RONGDUANQIDERONGSIHUIRONGDUAN,DIYADUANLUQIDETUOKOUQIHUILIJIDONGZUOERTIAOZHA,SHIGUZHANGSHEBEIDUANDIAN,BIJIAOANQUAN。

真人性23式(动)TN XITONGJIESHENGCAILIAO、GONGSHI,ZAIWOGUOHEQITAXUDUOGUOJIAGUANGFANDEDAOYINGYONG,KEJIANBI TT XITONGYOUDIANDUO。TN FANGSHIGONGDIANXITONGZHONG,GENJUQIBAOHULINGXIANSHIFOUYUGONGZUOLINGXIANFENKAIERHUAFENWEI TN-C HE TN-S DENGLIANGZHONG。

a. TN-C方式供电系统

TN-CXITONGJIUSHIBAOHUJIELINGXITONG,QIZHONGDELINGXIANWEIPENXIAN,JIDANGGONGZUOLINGXIANYOUDANGBAOHULINGXIAN,JIYUDIANYUANKAIGUANJIEYOUYUDIANQISHEBEIJINSHUWAIQIAOXIANGLIAN。DANGZONGLINGXIANDUANDIAO,NEIDANXIANGFUZAIWUFAGOUCHENGHUILU,LINGXIANDIANYAZENGGAO,YUCIXIANGLIANDEJINSHUWAIQIAOSHEBEIYEDAIDIAN,HENWEIXIAN。SUOYIBIXURANGLINGXIANZHONGFUJIEDI,LINGXIANDUANLEHOU,TN-CBIANCHENGTTBAOHUFANGSHI,DANXIANGGONGDIANBIANCHENGYIHUOYIDI。JIANQINGLEWEIXIAN。

TN-C供电系统的特点如下:

(1)YOUYUSANXIANGFUZAIBUPINGHENG,ZHONGXINGXIANSHANGYOUBUPINGHENGDIANLIU,DUIDIYOUDIANYA,SUOYIYUBAOHUXIANSUOLIANJIEDEDIANQISHEBEIJINSHUWAIQIAOYOUYIDINGDEDIANYA。

(2)RUGUOZHONGXINGXIANDUANXIAN,ZEBAOHUJIELINGDESHENGYUDIANLIUSHEBEIWAIQIAODAIDIAN。

(3)RUGUODIANYUANDEXIANGXIANPENGDI,ZESHEBEIDEWAIQIAODIANWEISHENGGAO,SHIZHONGXINGXIANSHANGDEWEIXIANDIANWEIMANYAN。

真人性23式(动)(4)TN-CXITONGGANXIANSHANGSHIYONGSHENGYUDIANLIUBAOHUQISHI,ZHONGXINGXIANHOUMIANDESUOYOUZHONGFUJIEDIBIXUCHAICHU,FOUZESHENGYUDIANLIUKAIGUANHEBUSHANG;ERQIE,ZHONGXINGXIANZAIRENHEQINGKUANGXIADOUBUDEDUANXIAN。SUOYI,SHIYONGZHONGXINGXIANZHINENGRANGSHENGYUDIANLIUBAOHUQIDESHANGCEYOUZHONGFUJIEDI。

(5)TN-CFANGSHIGONGDIANXITONGZHISHIYONGYUSANXIANGFUZAIJIBENPINGHENGQINGKUANG。

 

FUTUER TN-CJIEDIXITONGSHIYITU

b. TN-S方式供电系统

真人性23式(动)ZAITN-SZHISHIDEGONGDIANXITONGZHONG,BJI(JIBENBAOHU)DEFANGLEIQIWOMENXUANYONG3+1DIANLUJIEGOUDEFANGLEIQI。

真人性23式(动)ZAI3+1DIANLULI3GENXIANGXIANTONGGUOFANGLEIQILIANJIEDAOZHONGXIAN,ZHONGXIANTONGGUOYIGEHUOHUAJIANXILIANJIEDAOBAOHUDI(PE)XIAN。

ZHEIZHONGDIANLUJIEGOUKEYUFANGYOUYUJUEYUANWENTIERSHIJIEDIANXIANDAIDIANCONGERYINQIFANGLEIQICHANSHENGLOUDIANDIANLIUDEWENTI。

真人性23式(动)RUGUOXUYAODUOJILANGYONGBAOHU,NEIMEBIXUZAIFENPEIDIANXIANGLIANZHUANGCJIFANGLEIQI,JIZHONGDENGBAOHUDEFANGLEIQI。

DUIYUJIANXIXINGFANGLEIQI,JINDANGQIANJIDUANLUQIDERONGLIANGDAYUFANGLEIQIYAOQIUDESHUZHISHI,XUYAOZAIFANGLEIQIQIANCHUANJIESHIDANGDEDUANLUQI。

TN-S FANGSHIGONGDIANXITONG TASHIBAGONGZUOLINGXIAN N HEZHUANYONGBAOHUXIAN PE YANGEFENKAIDEGONGDIANXITONG,CHENGZUO TN-S GONGDIANXITONG, TN-S GONGDIANXITONGDETEDIANRUXIA。

真人性23式(动)① XITONGZHENGCHANGYUNXINGSHI,ZHUANYONGBAOHUXIANSHANGBUYOUDIANLIU,ZHISHIGONGZUOLINGXIANSHANGYOUBUPINGHENGDIANLIU。PE XIANDUIDIMEIYOUDIANYA,SUOYIDIANQISHEBEIJINSHUWAIQIAOJIELINGBAOHUSHIJIEZAIZHUANYONGDEBAOHUXIAN PE SHANG,ANQUANKEKAO。

真人性23式(动)② GONGZUOLINGXIANZHIYONGZUODANXIANGZHAOMINGFUZAIHUILU。

真人性23式(动)③ ZHUANYONGBAOHUXIAN PE BUXUDUANXIAN,YEBUXUJINRULOUDIANKAIGUAN。

真人性23式(动)TN-SXITONGJISANXIANGWUXIANGONGDIANXITONG,CHUSANXIANGXIAN(U、V、W)HEZHONGXINGXIAN(N)WAI,HAIYOUYITIAOBAOHUJIEDI(PE)XIAN。

(1)XIEBODIANLIU

DANGJINSHEHUIDEGELEIJIANZHUWUZHONGDEGONGDIANXITONGTONGCHANGCAIYONGZHILIUDIANZISHEBEIYIJIDALIANGDEYINGGUANGDENG。YUNXINGGUOCHENGHUISUOCHANSHENGGAOCIXIEBO,QIBUJINDUIDIANYUANJUYOUYANZHONGDEWURANZUOYONG,ERQIEHAIHUIJIN XIANDAILAIXIEBODIANLIU,TEBIESHI3CIXIEBODIANLIU。

真人性23式(动)GENJUXIANGGUANLILUNDEFENXI,CHUXIANZAISANXIANGZHONGDE3CIXIEBODIANLIUHUIZAI N XIANSHANGDIEJIA,ERDIEJIAHOUDEDIANLIUZHIXIANGDANGKEGUAN。WEILEFANGZHI N XIANSHANGCHUXIANDIEJIADEXIEBODIANLIUCHAOGUOXIANGXIANDIANLIUERCHUXIANDEDUANLU,GONGDIANGUOCHENGZHONGZAISANXIANGSIXIANHUILUZHONGCAIYONG4GENJIEMIANXIANGDENGDEDIANXIANHUODIANLAN。

(2)DANXIANGGONGZUODIANLIU

NXIANSHANGDIANLIUDEDAXIAOYUXIANGXIANSHANGDEDIANLIUYIZHI,DANXIANGGONGZUODIANLIUHUISUIZHEZHAODUBIAOZHUNDEBIANHUAERFASHENGBIANHUA,RUGUODIANLIUYUEBIANYUEDA,ZEHENKENENGHUICHANSHENGYANZHONGDEHOUGUO,SUOYIBURONGXIAOQU。

(3)SANXIANGBUPINGHENGDIANLIU

SANXIANGBUPINGHENGDIANLIUSHIDANXIANGFUHEDEGONGDIANXITONGZHONGBIRANHUICHUXIANDEQINGKUANG。ERQIESUIZHESHIJIANDETUIYI,BUPINGHENGDEXIANXIANGHUISUIZHIFAZHANERBIANDEYUJIAFUZA。TN-SXITONGGONGDIANDEZHIDINGSHITEBIEZHENDUISANXIANGBUPINGHENGYONGDIANFUHE,CONGERFANGZHIYINYONGDIANERCHUXIANDEYIWAISHIGU。

真人性23式(动)FUTUSAN TN-SJIEDIXITONGSHIYITU

c. TN-C-S方式供电系统

 TN-C-SFANGSHIGONGDIANXITONGZAIJIANZHUSHIGONGLINSHIGONGDIANZHONG,RUGUOQIANBUFENSHI TN-C FANGSHIGONGDIAN,ERSHIGONGGUIFANGUIDINGSHIGONGXIANCHANGBIXUCAIYONG TN-S FANGSHIGONGDIANXITONG,ZEKEYIZAIXITONGHOUBUFENXIANCHANGZONGPEIDIANXIANGFENCHU PE XIAN。

TN-C-S系统的特点如下:

(1)GONGZUOLINGXIAN N YUZHUANYONGBAOHUXIAN PE XIANGLIANTONG,RUTU 1-5ND ZHEIDUANXIANLUBUPINGHENGDIANLIUBIJIAODASHI,DIANQISHEBEIDEJIELINGBAOHUSHOUDAOLINGXIANDIANWEIDEYINGXIANG。

D DIANZHIHOUMIAN PE XIANSHANGMEIYOUDIANLIU,JIGAIDUANDAOXIANSHANGMEIYOUDIANYAJIANG,YINCI, TN-C-S XITONGKEYIJIANGDIDIANDONGJIWAIQIAODUIDIDEDIANYA,RANERYOUBUNENGWANQUANXIAOCHUZHEIGEDIANYA,ZHEIGEDIANYADEDAXIAOQUJUEYU ND XIANDEFUZAIBUPINGHENGDEQINGKUANGJI ND ZHEIDUANXIANLUDEZHANGDU。FUZAIYUEBUPINGHENG, ND XIANYOUHENZHANGSHI,SHEBEIWAIQIAODUIDIDIANYAPIANYIJIUYUEDA。SUOYIYAOQIUFUZAIBUPINGHENGDIANLIUBUNENGTAIDA,ERQIEZAI PE XIANSHANGYINGZUOZHONGFUJIEDI。

(2)PE XIANZAIRENHEQINGKUANGXIADOUBUNENGJINRULOUDIANBAOHUQI,YINWEIXIANLUMODUANDELOUDIANBAOHUQIDONGZUOHUISHIQIANJILOUDIANBAOHUQITIAOZHAZAOCHENGDAFANWEITINGDIAN。

(3)DUI PE XIANCHULEZAIZONGXIANGCHUBIXUHE N XIANXIANGJIEYIWAI,QITAGEFENXIANGCHUJUNBUDEBA N XIANHE PE XIANXIANGLIAN, PE XIANSHANGBUXUANZHUANGKAIGUANHERONGDUANQI,YEBUDEYONGDADIJIANZUO PE XIAN。

TONGGUOSHANGSHUFENXI, TN-C-S GONGDIANXITONGSHIZAI TN-C XITONGSHANGLINSHIBIANTONGDEZUOFA。DANGSANXIANGDIANLIBIANYAQIGONGZUOJIEDIQINGKUANGLIANGHAO、SANXIANGFUZAIBIJIAOPINGHENGSHI, TN-C-S XITONGZAISHIGONGYONGDIANSHIJIANZHONGXIAOGUOHAISHIKEXINGDE。

真人性23式(动)DANSHI,ZAISANXIANGFUZAIBUPINGHENG、JIANZHUSHIGONGGONGDIYOUZHUANYONGDEDIANLIBIANYAQISHI,BIXUCAIYONG TN-S FANGSHIGONGDIANXITONG。

 

FUTUSI TN-C-SJIEDIXITONGSHIYITU

 

d) PE线的作用及约束条件

真人性23式(动)CHANGJIANDEDIYAPEIDIANXITONGZHUYAOTONGGUOSANZHONGFANGSHISHIXIANJIEDI。ZAIDIANQISHEBEIYUGONGDIANXITONGXIANGLIANDEQINGKUANGXIA,DIYAPEIDIANXITONGSHEJIZHONGBAKECHUJIDAOJINSHUWUTIDESUOYOUDIANQISHEBEIJUNYUBAOHUPEXIANLIANJIE,KEYIDUIDIANQISHEBEIYUCAOZUORENYUANXINGCHENGBAOHU。SUOYI,ZAIDIYAPEIDIANXITONGBAOHUZHONG,PE XIANDESHEZHIFEICHANGZHONGYAO,TONGGUOJISHUCUOSHISHIXIANANQUANBAOHU。

ERPEXIANDESHEZHIYAOQIUJUTIBAOHANYIXIAJIGEFANGMIAN:

真人性23式(动)(1)ZAILIUNENGLINENGGOUDADAOBAOHUZHUANGZHILINGMINDUDEYAOQIU。

真人性23式(动)(2)ZAILIUSHIDEXIANZAIWENDUYIJIDIANCIGANYINGQIANGDUDOUYINGKONGZHIZAIHELIFANWEINEI,BUNENGCUNZAIDUIJIANZHUWUHUOQINEIBUYINZANGDEWEIXIAN,LIRUHUOZAIHUOBAOZHA。

真人性23式(动)(3)YOUYUJIEDIGUZHANGDIANLIUJIAOXIAO,TTXITONGJIEDIGUZHANGBAOHUDEYUESHUTIAOJIANWEIRAIA≤50V,TIAOJIANZHONGDERAZHIDESHIKEDAODIANBUFENDEJIEDIJIDIANZU,IAZHIDESHIBAOZHENGBAOHUDIANQIZAIGUIDINGSHIJIANNEIQIEDUANGUZHANGXIANDEDONGZUODIANLIU。

 

(三)IT方式供电系统

ITXITONGSHIZHIZAIDIANYUANZHONGXINGDIANBUJIEDIXITONGZHONG,JIANGSUOYOUSHEBEIDEWAILUKEDAODIANBUFENJUNJINGGEZIDEBAOHUXIANPEFENBIEZHIJIEJIEDI,CHENGZHIWEIITGONGDIANXITONG。ITXITONGYIBANWEISANXIANGSANXIANZHI。YEJIUSHISHUODIANYUANDEZHONGXINGDIANSHIDUIDIJUEYUANDEHUOZHETONGGUOGAOZUKANGJIEDI。

IT FANGSHIGONGDIANXITONG I BIAOSHIDIANYUANCEMEIYOUGONGZUOJIEDI。DIERGEZIMU T BIAOSHIFUZAICEDIANQISHEBEIJINXINGJIEDIBAOHU。

IT FANGSHIGONGDIANXITONGZAIGONGDIANJULIBUSHIHENZHANGSHI,GONGDIANDEKEKAOXINGGAO、ANQUANXINGHAO。YIBANYONGYUBUYUNXUTINGDIANDECHANGSUO,HUOZHESHIYAOQIUYANGEDILIANXUGONGDIANDEDIFANG,LIRUDIANLULIANGANG、DAYIYUANDESHOUSHUSHI、DIXIAKUANGJINGDENGCHU。

ITXITONGFASHENGJIEDIGUZHANGSHI,JIEDIGUZHANGDIANYABUHUICHAOGUO50V,BUHUIYINQIXIANGJIANDIANJIDEWEIXIAN。

FUTUWU ITJIEDIXITONGSHIYITU

二、TT、TN系统在应用中需要注意的事项

 (YI)TTXITONGZHONGXINGXIANBUYINGZHONGFUJIEDI

ZAIYIXIEGONGPEIDIANGONGCHENGZHONG,CHENGJIANBUMENYAOQIUJIANGTTXITONGZHONGXINGXIANZUOZHONGFUJIEDI,QIMUDESHIFANGZHIZHONGXINGXIANDUANXIANHOUZHONGXINGDIANPIAOYIDAILAIDESANXIANGDIANYABUPINGHENG。SHIJISHANG,GAIZUOFAXIAOGUOYOUXIAN。

 (ER)NONGCUNDIYADIANWANGBUYINGCAIYONGTN-CXITONG

真人性23式(动)(1)TN-CXITONGDEDANXIANGHUILUNEI,RUGUONPEXIANZHONGDUAN,DIANQISHEBEIWAIQIAOKEDAIGAODA220VDEDUIDIDIANYA,WEIXIERENSHENANQUAN。

(2)TN-CXITONGDESANXIANGHUILUNEI,RUGUONPEXIANZHONGDUAN,BUJINSHISHEBEISHIQUDENGDIANYALIANJIEHEJIEDI,ZAISANXIANGBUPINGHENGSHIHAIYIN“DUANLING”ERYINQISHAOHUAIDANXIANGSHEBEISHIGU。

(3)TN-CXITONGNPEXIANBUPINGHENGDIANLIUCHANSHENGDEDIANYA,JIANGZAIDIANQIZHUANGZHINEICHANSHENGDIANWEICHAHEZASANDIANLIU,RONGYIDAHUOHEGANRAODIANZISHEBEI。

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