2. Tus contactor yuav tsum tau dais cov teeb meem tam sim no thaum rhuav thiab kaw, vim li ntawd, tus nqi tshaj ntawm tus contactor tuaj yeem ncav 8 txog 10 zaug; Tam sim no ntawm cov kev tswj relay feem ntau tsis muaj qhov feem, yog li tus leb tshaj ntawm kev sib txuas lus feem ntau yog ob zaug;
3. Tus contactor muaj ARC extinguishing ntaus ntawv, qhov kev relay tsis muaj;
4. Kev tiv tauj thiab kev sib txuas ntawm lub tshuab electromagnetic tag nrho yog qhov sib txig sib nqus, tab sis tus contactor feem ntau tsuas yog nrog cov nqi hluav taws xob, thiab qee cov ntawv tso cai muaj ntau lub coils, xws li cov nqi hluav taws xob thiab cov nqi tam sim no. Cov kauj tamsim no siv rau kev siv thiab cov nqi hluav taws xob siv rau kev tuav;
5. Lub tshuab hluav taws xob yuav raug txuas nrog RC absorber; qhov feem ntau nws tsis muaj;
6. Tus neeg teb lub chaw nyob yog lub ntsiab lus ntawm lub ntsiab lus, nws txoj kev sib txuas lus tau thermal stability tsis thiab kev ruaj ntseg tsis ruaj khov, thiab lub chaw tsis muaj;
7. Cov xov tooj uas muaj qhov sib txuas rau tus neeg tiv thaiv tau siv rau kev txhim kho qhov ntsuas kub, thiab tus pas nrig ntawm txoj hlua khi yog plated nrog tin rau kev txhim kho cov khoom siv.