Okokuqala, ake sihlaziye umsebenzi welow voltage circuit breakerkanye ne-fuse kusekethe kagesi kagesi ophansi:
1. I-Voltge Low Circuit Breakers
Isetshenziselwa ukuvikela ukulayisha kwamanje ekupheleni kokunikezwa kwamandla, ukuvikela ukulayisha kwamanje esiqwini nasemaphethelweni egatsha emigqa yokusabalalisa, kanye nokuvikela ukulayisha kwamanje ekupheleni kwemigqa yokusabalalisa.
Uma ukulayisha ngokweqile, ukujikeleza okufushane, noma ukulahlekelwa kwamandla kagesi kwenzeka emugqeni, uhambo olusheshayo lwe-low-voltage circuit breaker lunqamula ukunikezwa kwamandla ukuze kuvikelwe ukuphepha kolayini.
I-Residual Current Circuit BreakerIsetshenziselwa Ukuvikela Ukushaqeka Komuntu Siqu
2. Ama-Fuse
Isetshenziselwa ukuvikela ukulayisha ngokweqile komthwalo wamanje emgqeni kanye nokuvikelwa kwesifunda esifushane phakathi kwesigaba nesigaba kanye nomhlabathi ohlobene.
I-fuse iyithuluzi elivikelayo.Uma i-current idlula inani elinqunyiwe futhi idlula isikhathi esanele, ukuncibilika kuyancibilika, futhi isifunda esixhunywe kuso siyanqanyulwa, esihlinzeka ngokuvikeleka kokugcwala ngokweqile noma ukuvikelwa kwesifunda esifushane sesekethe kanye nemishini.
Ngokuhlaziya okulula, kungaziwa ukuthi ama-circuit breaker nama-fuse kufanele afakwe emishinini kagesi ene-voltage ephansi, kungaba ezosetshenziswa ezimbonini noma ezisetshenziswa ekhaya.
Ingabe wonke umsebenzi kagesi uyazi: Umsebenzi kagesi kufanele uthobele ngokuqinile “Imithetho Yedivayisi Yamandla Kagesi Ephansi”.Kunezahluko ezimbili kokuthi “Imithetho Yedivayisi Yamandla Kagesi Esezingeni Eliphansi” ehlanganisa ngokukhethekile izicaciso zokufakwa kweswishi eyinhloko (isiphazamisi sesekhethi) kanye nefuse.
Ukumataniswa kwe-circuit breaker ne-fuse kanye nokumataniswa kocingo kufanele futhi kunakwe kudivayisi yesekethe yangempela.
I-fuse yamanje elinganiselwe ye-fuse yedivayisi kusekethe kufanele ibe nkulu noma ilingane nezikhathi ezingu-1.2 kuya kwezingu-1.3 zamanje ezilinganiselwe ze-breaker circuit.
Ukuncibilika kwamanje kwefuse kungaphansi kwezikhathi ezingu-0.8 zamanje ophephile wekhondatha yocingo.
Ngokuvamile, amandla okuncibilika kwefuse kufanele abe mkhulu kunomthamo olinganiselwe we-breaker circuit futhi ube ngaphansi komthamo ophephile wokuthwala wekhondatha.
Isilinganiso samanje se-circuit breaker kufanele sibe sikhulu noma silingane nomugqa wamanje, futhi umthamo wamanje wokulayisha umugqa kufanele ube izikhathi ezingu-1.2 kunomthamo wamanje wokulayisha umugqa.Ingakwazi futhi ukulungisa umthwalo welayini ngendlela efanele ngokwesimo somthwalo welayini, njengokushisa kukagesi.Kodwa i-current rated of the circuit breaker kumele ibe ngaphansi kwe-fuse melt current.
Ngaphezu kwalokho, kunamadivayisi amaningi wesifunda ngaphandle kwama-fuses, angaphephile futhi angalungile.Uma kunephutha emgqeni, kulula kakhulu ukudala umlilo.Esikhathini esidlule izingozi zomlilo, ama-fuse ayengafakwanga noma afakwe kabi.Ziningi izifundo okufanele zifundwe.Ngakho-ke, ama-fuse kanye nama-breaker circuit kufanele afakwe emhlobiso wasekhaya.Ungalokothi ube budedengu futhi uphephe kuqala.
Isikhathi sokuthumela: Apr-11-2021