DC CIRCUIT BREAKER THIAB FUSE UAS YOG COV KHOOM SIV TIV THAIV UAS ZOO TSHAJ PLAWS

Muaj ntau tus kws kho hluav taws xob xav tias cov fuses yog cov khoom siv tiv thaiv qub dhau lawm, thaum cov DC circuit breakers yog cov khoom siv tiv thaiv siab heev. Lub tswv yim no puas yog?

Nws tuaj yeem pom tias qhov nkhaus hloov pauv ntawm lub sijhawm-tam sim no ntawm lub fuse ze rau qhov nkhaus tshuaj xyuas ntawm lub peev xwm kawm thermal endurance ntawm lub voj voog ua haujlwm tiv thaiv, qhia tias nws muaj kev tiv thaiv overload zoo dua, tab sis nws siv tsis yooj yim li DC circuit breaker. Yog tias DC circuit breaker khiav vim overcurrent, nws tuaj yeem kaw kom muab hluav taws xob tom qab teeb meem, uas yooj yim heev thiab yooj yim. Lub fuse yuav tsum tau hloov pauv raws sijhawm nrog tib qhov kev qhia ntawm lub fuse, uas nws yog qhov tsim nyog los muab ntau yam khoom seem nrog cov lus qhia sib txawv, uas coj ntau yam teeb meem rau tus neeg siv.

Cov xov hluav taws xob fuse kuj yuav tsum tau them sai sai. Piv txwv li, qhov chaw nruab nrab ntawm lub fuse ntsia hlau yuav tsum txuas nrog sab fais fab, thiab qhov chaw ntsia hlau yuav tsum txuas nrog sab thauj khoom. Txwv tsis pub, nws yooj yim ua rau muaj hluav taws xob poob thaum hloov lub fuse.

Txawm li cas los xij, tam sim no, hauv kev tsim ib puag ncig ntawm peb lub tebchaws, qee lub tuam txhab tsim khoom, cov tsev ua haujlwm thiab lwm yam kev faib hluav taws xob uas tswj hwm los ntawm cov kws tshaj lij hluav taws xob (BA4 thiab BA5 cov neeg ua haujlwm, saib Appendix C) feem ntau siv DC circuit breakers. Ob peb tus neeg xav tau siv fuses, tab sis hauv qee lub tebchaws uas muaj kev lag luam tsim kho, kev siv ob hom khoom siv hluav taws xob no yog li ib nrab.

Raws li peb txhua tus paub, tus nqi ntawm DC circuit breaker yog siab heev rau lub peev xwm loj ntawm txoj kab tseem ceeb, thaum lub fuse nrog lub zog tam sim no me me li 30 tuaj yeem yooj yim txiav tawm lub zog luv luv ntawm 50 kilometers, thiab tus nqi ntawm kev hloov lub fuse yog txwv heev. Tsis tas li ntawd, tom qab tua lub DC circuit breaker, lub peev xwm thaiv ntawm cov neeg sib cuag tseem tsis hloov pauv tom qab hloov nrog lub spare tshiab. Hauv qhov no, nws yuav muaj kev nyab xeeb dua los txiav lub zog luv luv nrog lub fuse.

Ntxiv mus, thaum qhov sib txawv ntawm txhua lub fuse raws li tus qauv khoom (piv txwv li, qhov tam sim no tsis fusing uas tau pom zoo Yog tias yog 1.25in, thiab qhov tam sim no fusing uas tau pom zoo Yog tias yog 1.6in) yog 1.6 npaug, tus qauv khoom teev txhua qib ntawm fuses Nws qhov kev xaiv tuaj yeem lav thaum siv los ua kev tiv thaiv overload, tab sis nws nyuaj rau ua tiav DC circuit breakers. Hauv lwm lo lus, fuses muaj kev xaiv zoo dua ntawm cov qib tiv thaiv overload, uas tuaj yeem txo qhov chaw ntawm lub zog tsis ua haujlwm thaum lub sijhawm tiv thaiv overload.