1. Thaum cov yaj yaj yaj, qhov ua rau yaj yuav tsum tau ua tib zoo txheeb xyuas. Cov laj thawj ua tau yog:
(1) Ib txwm fuse vim luv luv Circuit Court txhaum lossis overload;
(2) Lub yaj yog siv rau ntev heev, thiab cov yaj yog yuam kev tawg vim oxidation los yog kub kub thaum ua haujlwm;
(3) Muaj kev puas tsuaj rau cov khoom siv thaum lub sij hawm txhim kho cov yaj, uas txo qhov chaw hla ntu thiab ua rau muaj kev cuam tshuam tsis raug thaum ua haujlwm.
2. Thaum hloov cov yaj, nws yuav tsum:
(1) Ua ntej txhim kho lub yaj tshiab, nrhiav seb vim li cas cov yaj tau tawg. Yog tias koj tsis paub meej txog qhov ua rau, tsis txhob hloov cov yaj rau kev sim ua haujlwm;
(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 lub raj fuse. Yog tias muaj kev kub nyhiab hnyav, lub raj fuse yuav tsum tau hloov tib lub sijhawm. Thaum cov porcelain fused yeeb nkab puas lawm, nws tsis raug tso cai los hloov cov kav dej ntawm lwm cov ntaub ntawv. Thaum hloov lub ntim fuse, xyuam xim rau cov ntim khoom.
3. Kev tu ua haujlwm thaum lub fuse ua tsis tau raws li hauv qab no:
(1) Tshem tawm cov plua plav thiab xyuas qhov kev sib cuag ntawm cov ntsiab lus tiv tauj;
(2) Txheeb xyuas qhov tshwm sim ntawm lub fuse (tshem tawm lub fuse raj) kom pom tias nws puas thiab deformed, thiab seb cov plooj (porcelain) puas muaj cov kab hluav taws xob tawm;
(3) Tshawb xyuas seb cov fuses thiab cov melts puas phim lub Circuit Court lossis cov khoom siv los tiv thaiv, thiab tshawb xyuas sai yog tias muaj teeb meem;
(4) Ua tib zoo saib xyuas N xaim hauv TN grounding system thiab hauv av tiv thaiv hlau ntawm cov khoom siv. Tsis pub siv fuses;
(5) Thaum tswj thiab tshuaj xyuas lub fuse, cov khoom siv hluav taws xob yuav tsum raug txiav tawm raws li kev tswj hwm kev nyab xeeb, thiab lub fuse tube yuav tsum tsis txhob muab tshem tawm thaum nws siv.