Cua hloov:
Lub tshuab hluav taws xob hauv tsev, lub npe tshawb fawb yog "Micro Circuit Breaker / Miniature Circuit Breaker", lub npe luv yog MCB.
Qhov loj Circuit Court breaker ntsia ntawm qhov kawg input nyob rau hauv lub high-powerDC them chaw nres tshebyog hu ua "moulded case circuit breaker", kuj hu ua MCCB.
Kuj tseem muaj hom hluav taws xob thaiv hluav taws xob nrog cov xau, lub npe tshawb fawb yog "Residual Current Operated Protective Device", sau luv li RCD.
Vim li cas Circuit Breaker nquag mus rau lub caij ntuj sov?
Cov laj thawj muaj peev xwm yog: qhov kub thiab txias nce rau lub caij ntuj sov, qhov ntsuas tam sim no ntawm huab cua hloov pauv, thiab huab cua hloov mus los vim yog overload.
Cov laj thawj rau ntau yam kev mus ncig yog raws li hauv qab no:
A. Cov dej ntws tawm
1. Lub plhaub lub tshuab yog deformed vim muaj kev cuam tshuam, cov cables txuas rau lub voj voog khoob hauv lub tshuab puas lawm, thiab luv luv Circuit Court yog tsim los ntawm lub cev them nyiaj sab hauv thiab lub plhaub, uas ua rau cov xau tam sim no tshaj 30mA.
2. Lub tshuab raug rau cov dej noo thiab dej sab hauv, thiab cov rwb thaiv tsev yooj yim ntawm cov khoom siv hluav taws xob thiab cov casing raug puas ntsoog, ua rau cov dej ntws tawm ntau tshaj 30mA.
Kev kuaj pom ntawm RCD nws tus kheej yog qhov rhiab heev, thiab cov xau tam sim no yuav tsis dhau tus qauv, tab sis RCD pom qhov xau tam sim no tshaj 30mA.
Ib qho ntawm ob lub xov hlau, L thiab N, txuas nrog rov qab mus rau PE xaim, ua rau cov xaim tam sim no tshaj 30mA.
5. Rau cov chaw sib txuas lus, ntxiv rau qhov xau tam sim no ntawm lub chaw nres tsheb them nws tus kheej, OBC tuaj yeem tsim cov dej xau thiab ua rau muaj kev poob qis.
B. Overload tripping
Nyob rau lub caij ntuj sov, raws li qhov kub thiab txias nce, lub peev xwm nqa ntawm lub tshuab cua hloov qis thiab nws mus ncig vim yog overload.
7. Txuas ntxiv loads rau hauv Circuit Court breaker ceg, ua rau overload tripping.
8. Cov kab hluav taws xob ntawm cov kab hluav taws xob ntawm cov hluav taws xob hluav taws xob yog nyias dhau, ua rau muaj kev sib cuag hauv zos thiab cua sov, uas ua rau qhov kub thiab txias ntawm Circuit Court breaker, txo qhov load peev xwm, thiab overload tripping.
9. Lub tshuab puas lawm, ua rau L thiab N yog kwv yees luv luv Circuit Court hauv lub tshuab, ua rau overload tripping.
10. Lub zog hluav taws xob tsis muaj zog ua rau cov khoom siv tam sim no oscillation, ua rau overload tripping.
C. Overtemperature tripping
11. Yog hais tias qhov kub thiab txias tshaj qhov ua hauj lwm kub ntawm lub Circuit Court breaker, nws yuav mus vim overheating.
12. Lub cable stripping tsis yog standardized, thiab cov conductive ib feem ntawm qhov kawg ntawm lub cable muaj ib tug txheej hlau daim tawv nqaij xauv rau hauv lub cua hloov. Cua hloov cua sov thiab mus ncig vim overheating.