① Cov yam ntxwv tiv thaiv ntawm lub fuse yuav tsum tau yoog raws li cov yam ntxwv ntawm cov khoom tiv thaiv. Ua tib zoo xav txog qhov ua tau luv luv tam sim no, xaiv lub fuse nrog cov peev txheej sib xws.
② Lub ntsuas hluav taws xob ntawm lub fuse yuav tsum tau hloov mus rau cov kab hluav taws xob theem, thiab qhov ntsuas tam sim no ntawm lub fuse yuav tsum siab dua lossis sib npaug rau cov ntsuas tam sim no ntawm cov yaj.
③ Cov ntsuas tam sim no ntawm cov yaj ntawm txhua theem ntawm fuses hauv kab yuav tsum tau muab sib xyaw kom haum, thiab qhov ntsuas tam sim no ntawm qib dhau los yuav tsum siab dua qhov ntsuas tam sim no ntawm qib tom ntej.
④ Lub yaj ntawm lub fuse yuav tsum tau muab sib npaug raws li qhov yuav tsum tau ua. Nws tsis raug tso cai los ua kom cov yaj ntawm lub siab nyiam lossis hloov cov yaj nrog lwm cov conductors.