Kev Nkag SiabCov Khoom Siv Hluav Taws Xob Tam Sim No: Ib Phau Ntawv Qhia Txog Kev Ua Haujlwm
Hauv lub ntiaj teb kev nyab xeeb hluav taws xob, cov khoom siv hluav taws xob seem (RCCBs) ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv tib neeg thiab khoom vaj khoom tsev los ntawm kev puas tsuaj ntawm hluav taws xob. Cov khoom siv no yog tsim los ntes cov hluav taws xob tsis sib npaug thiab txiav lub voj voog kom tiv thaiv kev poob hluav taws xob thiab hluav taws kub. Hauv tsab xov xwm no, peb yuav kawm txog cov haujlwm, cov txiaj ntsig, thiab qhov tseem ceeb ntawm RCCBs hauv cov kab ke hluav taws xob niaj hnub no.
Lub tshuab hluav taws xob seem tam sim no yog dab tsi?
Ib lub tshuab hluav taws xob seem (RCD), feem ntau hu ua lub cuab yeej hluav taws xob seem (RCCB), yog ib lub cuab yeej hluav taws xob siv los saib xyuas qhov hluav taws xob hauv ib lub voj voog. Nws sib piv qhov hluav taws xob uas ntws los ntawm tus neeg txuas hluav taws xob (theem) nrog qhov hluav taws xob uas ntws los ntawm tus neeg txuas hluav taws xob nruab nrab. Feem ntau, ob lub hluav taws xob no yuav tsum sib npaug. Txawm li cas los xij, yog tias muaj qhov txhaum tshwm sim, xws li lub voj voog luv luv lossis qhov txhaum ntawm kev rwb thaiv tsev ua rau muaj qhov hluav taws xob xau, RCCB ntes tau qhov sib txawv ntawm ob qho - qhov hluav taws xob seem. Thaum qhov tsis sib npaug no tshaj qhov txwv tsis pub dhau, RCCB khiav, txiav lub zog fais fab thiab tiv thaiv kev puas tsuaj rau cov khoom siv.
RCCB ua haujlwm li cas?
RCCBs ua haujlwm raws li lub hauv paus ntsiab lus ntawm kev siv hluav taws xob los ua kom lub zog hluav taws xob tsis txav. Hauv lub cuab yeej, muaj lub hauv paus hlau nplaum uas nyob ib puag ncig cov xov hlau uas muaj sia thiab cov xov hlau tsis txav. Thaum cov hluav taws xob sib npaug, cov teb hlau nplaum uas tsim los ntawm cov hluav taws xob no yuav tshem tawm ib leeg. Txawm li cas los xij, yog tias muaj hluav taws xob xau, cov teb hlau nplaum yuav tsis sib npaug, ua rau muaj hluav taws xob hauv lub hauv paus thiab ua rau lub tshuab tripping. Qhov kev teb sai no (feem ntau hauv 30 milliseconds) ua kom lub voj voog raug txiav tawm ua ntej muaj kev puas tsuaj loj tshwm sim.
Cov txiaj ntsig ntawm kev siv RCCB
1. Kev nyab xeeb zoo dua: Qhov txiaj ntsig tseem ceeb ntawm RCCBs yog lawv txoj kev tiv thaiv hluav taws xob poob siab. RCCBs muaj txiaj ntsig zoo tshwj xeeb hauv cov chaw ntub dej xws li chav dej thiab chav ua noj, qhov twg muaj kev pheej hmoo ntawm hluav taws xob poob siab ntau dua.
2. Kev Tiv Thaiv Hluav Taws Kub: RCCBs ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv hluav taws kub los ntawm kev ntes cov hluav taws xob xau uas tuaj yeem ua rau kub dhau thiab muaj hluav taws kub. Lawv pab txo cov kev pheej hmoo cuam tshuam nrog kev ua haujlwm tsis zoo ntawm cov xov hlau thiab cov khoom siv hluav taws xob.
3. Ua raws li cov cai: Ntau txoj cai kev nyab xeeb hluav taws xob thiab cov cai hauv tsev yuav tsum tau teeb tsa cov khoom siv hluav taws xob seem (RCCBs) hauv cov tsev nyob thiab cov tsev lag luam. Kev siv cov khoom siv no ua kom ntseeg tau tias ua raws li cov cai thiab txhim kho cov qauv kev nyab xeeb tag nrho.
4. Yooj yim rau kev teeb tsa thiab kev saib xyuas: RCCB yooj yim rau kev teeb tsa thiab muaj cov nqi kho tsawg heev. Nws raug pom zoo kom sim nws tsis tu ncua siv lub pob sim kom paub tseeb tias nws ua haujlwm zoo.
Xaiv RCCB zoo
Thaum xaiv RCCB, cov hauv qab no yuav tsum tau xav txog:
- Rated Current: Qhov no yog qhov siab tshaj plaws uas RCCB tuaj yeem tiv taus. Kev xaiv ntawm rated current yuav tsum yog raws li tag nrho cov load ntawm lub circuit uas nws yuav tiv thaiv.
- Qib Kev rhiab heev: RCCBs muaj qib kev rhiab heev sib txawv, feem ntau yog 30mA rau kev tiv thaiv tus kheej thiab 100mA lossis 300mA rau kev tiv thaiv hluav taws. Qhov kev xaiv nyob ntawm daim ntawv thov tshwj xeeb thiab qib kev pheej hmoo.
- Tus naj npawb ntawm cov ncej: RCCBs muaj nyob rau hauv ib-ncej, ob-ncej thiab plaub-ncej kev teeb tsa, nyob ntawm seb hom circuit twg raug tiv thaiv.
Hauv luv luv
Hauv kev xaus lus, cov khoom siv hluav taws xob seem yog ib qho tseem ceeb ntawm cov tshuab hluav taws xob niaj hnub no, muab kev tiv thaiv tseem ceeb tiv thaiv kev poob hluav taws xob thiab hluav taws. Lawv lub peev xwm los ntes thiab teb sai rau qhov tsis sib npaug ntawm hluav taws xob ua rau lawv yog cov khoom siv kev nyab xeeb tseem ceeb hauv tsev thiab cov lag luam. Raws li cov qauv kev nyab xeeb hluav taws xob txuas ntxiv hloov pauv, cov khoom siv hluav taws xob seem yuav tseem ceeb zuj zus, ua rau lawv yog qhov kev nqis peev tseem ceeb rau txhua tus neeg uas tab tom nrhiav kev txhim kho lawv cov kev ntsuas kev nyab xeeb hluav taws xob.
Lub sijhawm tshaj tawm: Lub Yim Hli-14-2025