Kev taw qhia ntawm lub zog fais fab fuse

Lub hauv paus ntsiab lus ntawm lub zog fuse

Lub fuse fais fab yog ib qho ntawm cov fuses, uas yog hais txog cov khoom siv hluav taws xob uas fuse cov yaj nrog cua sov uas nws tus kheej tsim thiab txiav lub voj voog thaum tam sim no tshaj qhov nqi teev tseg. Lub fuse yog lub cuab yeej tiv thaiv tam sim no ua los ntawm kev siv cua sov uas nws tus kheej tsim los yaj cov yaj tom qab tam sim no tshaj qhov nqi teev tseg rau ib lub sijhawm, yog li txiav lub voj voog.

Lub hauv paus ntsiab lus ua haujlwm ntawm lub fuse yog I2R yooj yim piv rau lub sijhawm. Qhov siab dua tam sim no, lub sijhawm luv dua fusing lossis qhib. Lub zog dissipation ntawm lub fuse yog proportional rau lub square ntawm tam sim no los ntawm lub fuse. Thaum lub zog siv ntau dhau, lub fuse tawg. Qhov feature no kuj siv rau fuse-protected harnesses. Yog tias lub cua sov tsim tawm ntau dua li lub cua sov dissipated, qhov kub ntawm lub fuse yuav nce. Thaum qhov kub nce mus rau qhov melting point ntawm lub fuse ntawm lub fuse, lub fuse yuav raug tawg, uas yog, lub circuit yuav raug txiav rau kev tiv thaiv.

Cov fuses siv dav hauv cov kab ke faib hluav taws xob siab thiab qis thiab cov kab ke tswj hwm nrog rau cov khoom siv hluav taws xob. Ua tus tiv thaiv luv luv thiab overcurrent, nws yog ib qho ntawm cov khoom siv tiv thaiv feem ntau siv.

Kev faib tawm ntawm cov fais fab fuses

Cov fuses fais fab yog ib feem ntawm cov fuses (fuses), lawv tuaj yeem muab faib ua cov fuses tiv thaiv semiconductor, DC fuses, fuses tshwj xeeb, fuses dav dav thiab fuse disconnectors.

Cov yam ntxwv ntawm lub zog fais fab

Cov qauv ntawm lub fuse fais fab zoo ib yam li lub fuse. Nws feem ntau yog ua los ntawm cov yaj, plhaub thiab kev txhawb nqa, ntawm cov yaj yog qhov tseem ceeb los tswj cov yam ntxwv fusing. Cov khoom siv, qhov loj me thiab cov duab ntawm cov yaj txiav txim siab cov yam ntxwv fusing. Cov ntaub ntawv yaj raug muab faib ua ob pawg: qis melting point thiab siab melting point. Cov ntaub ntawv qis melting point xws li txhuas thiab cov hlau txhuas muaj qis melting point thiab yooj yim rau fuse. Vim lawv qhov resistivity loj, qhov loj ntawm cov yaj yog loj, thiab ntau cov pa hlau raug tsim thaum lub sijhawm fusing. Nws tsuas yog tsim rau fusing nrog lub peev xwm tawg qis. ntaus ntawv. Cov ntaub ntawv siab melting point xws li tooj liab thiab nyiaj muaj melting point siab thiab tsis yooj yim rau fuse, tab sis vim lawv qhov resistivity qis, lawv tuaj yeem ua rau hauv qhov me me dua li cov yaj qis melting point, thiab tsim cov pa hlau tsawg dua thaum fused, uas yog tsim rau cov ntsiab lus tawg siab. Lub peev xwm fuse. Cov duab ntawm cov yaj raug muab faib ua ob hom: filament thiab ribbon. Kev hloov pauv cov duab ntawm qhov seem hloov pauv tuaj yeem hloov pauv cov yam ntxwv fusing ntawm lub fuse.