1. Xyuas seb qhov ntsuas fuse thiab yaj puas sib haum nrog cov khoom tiv thaiv;
2. Tshawb xyuas seb qhov zoo li ntawm lub fuse puas puas los yog deformed, thiab seb puas muaj qhov cuam tshuam ntawm cov plooj (porcelain insulation part) puas muaj flicker paug;
3, xyuas seb lub fuse cov ntsiab lus puas zoo, nyob ze, seb puas muaj qhov tshwm sim overheating;
4. Fuse teeb liab qhia ntawm fuse yog qhov qub.
Kev siv fuse thiab tu:
1. Thaum cov yaj yog fusing, cov laj thawj ntawm qhov fusing yuav tsum tau ua tib zoo txheeb xyuas. Cov laj thawj tshwm sim yog raws li hauv qab no:
1) luv Circuit Court txhaum los yog overloading thiab ib txwm fusing;
2) Yog tias cov yaj tau siv ntev dhau lawm, cov yaj yuav hloov nws cov yam ntxwv vim oxidation lossis kub kub hauv kev ua haujlwm, uas yuav ua rau cov yaj yuav raug txiav los ntawm kev yuam kev;
3) Kev puas tsuaj rau cov khoom siv tau tshwm sim thaum lub yaj raug ntsia, uas txo nws cov ntoo khaub lig- ntu ntu thiab ua rau kev ua haujlwm yuam kev.
2. Thaum tshem tawm thiab hloov cov yaj, nws yuav tsum:
1) Ua ntej txhim kho lub yaj tshiab, nrhiav seb qhov ua rau yaj fusing. Tsis txhob hloov cov yaj ua ntej txiav txim qhov ua rau yaj fusing;
2) Thaum hloov cov yaj tshiab, xyuas seb qhov ntsuas ntawm cov yaj puas phim cov cuab yeej tiv thaiv;
3) Thaum hloov cov yaj tshiab, xyuas qhov kub hnyiab ntawm cov fuse tawg cov yeeb nkab. Yog tias muaj mob hnyav, hloov cov yeeb nkab fuse tib lub sijhawm. Thaum lub porcelain fuse tube puas lawm, nws tsis raug tso cai los hloov nrog lwm cov raj. Thaum hloov cov yaj ntawm packing fuse, xyuam xim rau filling.