Ntoo cable nruas muaj kev cuam tshuam zoo heev los ntawm kev quab yuam sab nraud xws li ib puag ncig quab yuam, yog li kev tiv thaiv sab nraud lub zog muaj peev xwm (thiab cov khoom siv ntoo cable nruas) yog ib qho tseem ceeb rau kev ntsuas lub nruas ntoo.
1. Muaj dej tsis zoo, plua plav pov thawj, thiab tiv thaiv txaws.
2. Muaj qhov kub thiab txias thaiv kev ruaj ntseg. Teem overheated overload protectors rau ntoo cable nruas, thiab electromagnetic to protectors, dual pov hwm. Thaum qhov kub ntawm cov ntoo cable yog siab dhau lawm, cov ntoo cable nruas tau txais kev tswj xyuas kom tsis txhob muaj hluav taws kub. Tshwj xeeb tshaj yog nyob rau lub caij ntuj sov, tom qab kub kub thiab dej nag "ntxuav", tsis tsim nyog cables yog tsis tshua muaj tshwm sim thiab to, uas yog heev txaus ntshai.