Taw qhia:
Cov cuab yeej hluav taws xob ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev nyab xeeb ntawm hluav taws xob. Lawv tiv thaiv kev thauj khoom ntau dhau, luv luv thiab hluav taws xob tsis ua haujlwm, tiv thaiv lub neej thiab cov khoom siv hluav taws xob muaj nqis. Hauv tsab blog no, peb yuav saib tob txog lub ntiaj teb ntawm cov cuab yeej hluav taws xob, tsom mus rau qhov sib txawv thiab kev ua haujlwm ntawm RCCB, MCB thiab RCBO.
1. Kev paub txog cov khoom siv hluav taws xob:
Ua ntej peb yuav tham txog cov ntsiab lus no, cia peb xub nkag siab txog lub tshuab hluav taws xob (circuit breaker) yog dab tsi. Yeej yog lub tshuab hluav taws xob (circuit breaker) uas yog lub tshuab hloov hluav taws xob uas pab tiv thaiv cov hluav taws xob kom tsis txhob raug puas tsuaj los ntawm cov hluav taws xob ntau dhau. Thaum lub hluav taws xob puv lossis luv, lub tshuab hluav taws xob yuav cuam tshuam cov hluav taws xob, tiv thaiv kev phom sij xws li hluav taws xob kub hnyiab.
2. Lub tshuab hluav taws xob me me (MCB):
MCBs yog cov khoom siv hluav taws xob feem ntau siv hauv cov chaw nyob thiab cov chaw ua lag luam. Cov khoom siv me me tab sis ruaj khov no feem ntau yog tsim los tiv thaiv kev overcurrent los ntawm kev overload lossis luv luv circuit. MCBs muaj ntau yam kev ntsuas tam sim no, tso cai rau kev hloov kho kom ua tau raws li cov kev xav tau hluav taws xob sib txawv. Nws tuaj yeem rov pib dua manually tom qab tripping, uas yooj yim rau kev siv txhua hnub.
3. Cov cuab yeej hluav taws xob seem (RCCB):
RCCBs, tseem hu ua Cov Khoom Siv Tam Sim No (RCDs), muab ib txheej kev nyab xeeb ntxiv los ntawm kev ntes thiab tiv thaiv cov hluav taws xob xau av. Cov hluav taws xob no feem ntau tshwm sim thaum tus neeg hlau theem nyob kov ib feem ntawm cov khoom siv hluav taws xob, xws li lub thawv hlau. RCCB saib xyuas cov hluav taws xob ntws los ntawm cov xov hlau nyob thiab cov xov hlau nruab nrab thiab tawm mus tam sim ntawd yog tias pom qhov tsis sib npaug. Qhov tsis sib npaug no tuaj yeem tshwm sim los ntawm tib neeg kov cov khoom siv tsis zoo, txo qhov kev pheej hmoo ntawm kev raug hluav taws xob.
4. Cov cuab yeej hluav taws xob seem (RCBO) nrog kev tiv thaiv overcurrent:
RCBO muab cov yam ntxwv ntawm MCB thiab RCCB los muab kev tiv thaiv ob zaug tiv thaiv cov hluav taws xob ntau dhau thiab cov hluav taws xob seem. Cov khoom siv no yog qhov kev xaiv zoo thaum muaj kev xav tau los tiv thaiv ib lub voj voog tshwj xeeb lossis ib lub cuab yeej los ntawm kev ua txhaum hluav taws xob. RCBO feem ntau pom muaj nyob rau hauv cov chaw tseem ceeb xws li chav ua noj thiab chav dej qhov twg kev sib cuag nrog dej ua rau muaj kev pheej hmoo ntawm hluav taws xob ntau ntxiv. Tsis tas li ntawd, RCBOs tso cai rau cov voj voog ib leeg kom raug cais tawm thaum lub sijhawm daws teeb meem lossis kev saib xyuas thaum ua kom cov khoom siv ua haujlwm tas li.
5. Qhov sib txawv tseem ceeb thiab qhov zoo:
a) MCB tsom mus rau kev tiv thaiv kev overcurrent los ntawm kev overload lossis luv Circuit Court. Lawv yooj yim siv, tuaj yeem rov pib dua tes, thiab siv dav vim lawv pheej yig thiab muaj.
b) RCCB muab kev tiv thaiv tiv thaiv cov hluav taws xob xau av uas yuav tshwm sim los ntawm tib neeg kov cov khoom siv tsis zoo lossis cov xov hlau puas tsuaj. Cov khoom siv no ua rau muaj kev nyab xeeb ntxiv thiab tiv thaiv kev phom sij ntawm hluav taws xob.
c) RCBO muaj qhov zoo ntawm MCB thiab RCCB. Lawv muab kev tiv thaiv overcurrent thiab residual current thiab zoo tagnrho rau cov circuits rhiab heev lossis thaj chaw uas xav tau kev ntsuas kev nyab xeeb nruj.
6. Xaiv lub tshuab hluav taws xob uas tsim nyog:
Kev xaiv lub circuit breaker zoo nyob ntawm ntau yam, xws li lub zog hluav taws xob, qhov rhiab ntawm lub circuit, thiab cov kev cai tshwj xeeb rau kev nyab xeeb. Ib txwm sab laj nrog tus kws hluav taws xob lossis tus kws ua hluav taws xob uas tuaj yeem soj ntsuam koj cov kev xav tau thiab pom zoo hom circuit breaker thiab qib tsim nyog rau koj qhov kev teeb tsa.
Hauv kev xaus lus:
Kev nkag siab txog qhov sib txawv ntawm cov circuit breakers sib txawv xws li RCCB, MCB thiab RCBO yog qhov tseem ceeb rau kev tswj hwm kev nyab xeeb hluav taws xob hauv cov chaw nyob, chaw ua lag luam thiab chaw ua haujlwm. MCB tiv thaiv overcurrent, RCCB tiv thaiv cov dej ntws hauv av, thiab RCBO muab kev tiv thaiv tag nrho rau ob qho tib si. Los ntawm kev xaiv lub circuit breaker zoo rau koj lub tshuab hluav taws xob, koj tuaj yeem tiv thaiv kev phom sij thiab xyuas kom meej tias tib neeg thiab cov khoom siv muaj kev nyab xeeb.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-11-2023