RCD yog ib lo lus dav dav siv rau hauv cov cai thiab cov cai ntawm kev coj ua, suav nrog RCCB, RCBO, thiab CBR. Ntawd yog, cov khoom siv uas muab "kev tiv thaiv" tam sim no seem, uas yog, thaum tam sim no seem tshaj qhov txwv lossis lub cuab yeej raug kaw tes, lawv ntes tau tam sim no seem thiab hluav taws xob "cais tawm" lub voj voog. Tsis zoo li RCM (Residual Current Monitor) uas siv los "nrhiav" tam sim no seem tab sis tsis muab kev tiv thaiv tam sim no seem - saib cov lus qhia rau Tshooj 411.1 thiab cov qauv khoom teev nyob rau thaum kawg ntawm Tshooj 722.531.3.101
RCCB, RCBO, thiab CBR muab kev tiv thaiv los ntawm kev cais cov khoom siv fais fab kom tiv thaiv cov teeb meem tam sim no uas ua rau cov khoom siv khiav lossis kaw tes.
RCCB (EN6008-1) yuav tsum siv ua ke nrog OLPD sib cais, uas yog, yuav tsum siv lub fuse thiab/lossis MCB los tiv thaiv nws ntawm overcurrent.
RCCB thiab RCBO muaj cov yam ntxwv ruaj khov thiab tsim los rau cov neeg ib txwm kom rov pib dua yog tias muaj qhov yuam kev.
CBR (EN60947-2) Lub tshuab hluav taws xob Circuit Court breaker nrog kev tiv thaiv tam sim no uas ua tiav, tsim nyog rau cov ntawv thov tam sim no siab dua >100A.
CBR tej zaum yuav muaj cov yam ntxwv hloov kho tau thiab cov neeg ib txwm tsis tuaj yeem pib dua tshiab yog tias muaj qhov yuam kev.
Tshooj 722.531.3.101 kuj hais txog EN62423; cov kev cai tsim qauv ntxiv siv rau RCCB, RCBO thiab CBR rau kev ntes F lossis B cov hluav taws xob seem.
RDC-DD (IEC62955) sawv cev rau cov khoom siv nrhiav tam sim no DC seem *; ib lo lus dav dav rau cov khoom siv tsim los nrhiav cov teeb meem DC du hauv kev siv them hauv Hom 3, thiab txhawb kev siv Hom A lossis Hom F RCDs hauv lub voj voog.
Tus qauv RDC-DD IEC 62955 teev ob hom ntawv yooj yim, RDC-MD thiab RDC-PD. Kev nkag siab txog cov hom ntawv sib txawv yuav ua kom koj yuav tsis yuav cov khoom uas siv tsis tau.
RDC-PD (lub cuab yeej tiv thaiv) muaj 6 mA kev kuaj pom DC du thiab 30 mA A lossis F kev tiv thaiv tam sim no seem hauv tib lub cuab yeej. Lub RDC-PD kev sib cuag raug cais tawm hluav taws xob thaum muaj teeb meem tam sim no seem.