TN Grounding Hom ntawm Peb-theem Tsib Hlau System
TT grounding txoj kev:
Thawj tsab ntawv T qhia tias qhov nruab nrab ntawm cov khoom siv hluav taws xob yog hauv av, thiab qhov thib ob T yog grounding ntawm cov hlau casing ntawm cov khoom siv. Txoj kev no feem ntau yog siv rau hauv cov tshuab hluav taws xob siab, thiab yuav tsum tsis txhob siv thaum muaj cov khoom siv hluav taws xob loj hauv cov tshuab hluav taws xob tsawg.
TN-S grounding txoj kev:
Tsab ntawv S sawv cev tias N yog cais los ntawm PE, lub plhaub hlau ntawm cov khoom siv txuas nrog PE, thiab qhov nruab nrab ntawm cov khoom siv txuas nrog N.
Qhov zoo dua yog tias tsis muaj tam sim no hauv PE, yog li cov hlau casing ntawm cov khoom siv tsis muaj peev xwm rau hauv av. Feem ntau yog siv rau kev ua cov ntaub ntawv, kev txheeb xyuas qhov tseeb, lub zog siv hluav taws xob ntawm cov tsev siab.
TN-C grounding txoj kev:
Tsab ntawv C txhais tau hais tias N thiab PE tau muab tso ua ke rau hauv PEN, uas yog ib txoj kev siv hluav taws xob plaub. Ob qho khoom siv nruab nrab thiab cov hlau casing txuas nrog N. Txij li peb-theem tsis sib npaug tam sim no thiab kev sib haum xeeb tam sim no thaum N zoo li qub, cov hlau casing ntawm cov cuab yeej ib txwm muaj qee qhov hluav taws xob rau hauv av, uas feem ntau yog siv dav cov chaw muab hluav taws xob.
TN-CS grounding method:
Ib feem ntawm N thiab PE yog sib cais, uas yog plaub-xaim ib nrab-qhov system fais fab mov hom. Nws yog siv nyob rau hauv qhov chaw uas tsis zoo ib puag ncig.
Cov qauv hlau xim ntawm peb-theem tsib-xaim system nyob rau hauv Suav teb yog: A hlau yog daj, B hlau yog ntsuab, C hlau yog liab, N hlau yog xiav, thiab PE hlau yog daj-ntsuab.
Rau ntau peb theem ntse fais fab ntsuas, pls xav tiv tauj peb.
