辽宁11选5

新黎明科创控股有限辽宁11选5详情

防爆配电箱外壳接地与输出端接头接地并联时的注意事项

发布时间:2018-12-14 09:50:00 查看次数:

YIBANWOMENDESANXIANGDIANJIJIEXIANSHIYONGSIXINDIANLAN,QIZHONGSANXINJIEA、B、CSANXIANGDIANYUAN,LINGWAIYIXINXIANJIUSHIJIEDIXIAN,LIRUWOMENYIZHONGSANXIANGDIANJIDEDIANLANXINGHAOWEI:ZR-YJV-4*2.5,DAIBIAOWEIZURANYJVLEIXINGDEDIANLAN,SIXIN2.5mmPINGFANGDEDIANLAN。 

JUTIJIEXIANDUANZIXIANGJIANXIATU: 

配电箱接线端子图.jpg

CONGTUZHONGWOMENKEYIKANDAO,JIEDIDUANZIBENZHISHANGJIUSHIDIANJIQIAOJIEDI,SUOYIZHEILIDIANLANDEJIEDIHEDIANJIWAIQIAOBENZHISHANGDOUSHIBAOHUXINGJIEDI,KEYIBENSHENJIUSHIBINGLIANZAIYIQIDE,SUOYIMINGQUEDESHUO:PEIDIANXIANGWAIQIAOJIEDIYUSHUCHUDUANJIETOUDEJIEDIKEYIBINGLIAN。 


NEIMEWOMENXUYAOZHUYISHENMEWENTI? 


1、常规接地符号认知: 


配电箱常规接地符号表.jpg

2、电气设备外壳经过电阻Rd接地,Rd与人体电阻Rr形成并联电路:

Ir/Ijd=Rd/Rr,JIEDITIDEJIEDIDIANZUYUEXIAO,ZELIUJINGRENTIDEDIANLIUJIUYUEXIAO。WEIXIANZHITONGGUORENTIDEDIANLIU(XIAOYU10MA),ZHIYAOSHIDANGKONGZHIRdDEDAXIAO(YIBANBUDAYU4OU),JIUKEYIBIMIANRENTICHUDIANQIDAOBAOHUZUOYONG。 

防爆配电箱外壳经过电阻Rd接地.jpg

3、接地材料规格的要求: 


防爆配电箱接地材料规格要求.jpg

4、接地制作方式:


SUIRANSHUOPEIDIANXIANGWAIQIAOJIEDIYUSHUCHUDUANJIETOUDEJIEDIKEYIBINGLIAN,TEBIEZHUYIDESHIJIEXIANDUANZIBUKEYISHIYONGYIGE,DIANJIJIEDIDUANZISHIJIEDIANLANJIEDIXIANDE,ERDIANJIWAIQIAOJIEDIDEZHIZUOFANGFARUXIATU: 

防爆配电箱接地制作方式示意图.jpg


您可能感兴趣的:

家庭用防爆配电箱的使用注意事项及接线小技巧


本文由新黎明科创控股有限公司(http://cqsytkd.com/)转载整理于电工之家


辽宁11选5

在线留言

在线客服