SThe aluminium hlau armor (AWA) rau ib leeg tub ntxhais cables thiab steel hlau armor (SWA) rau multicore cables muab robust mechanical tiv thaiv ua cov 11kV cables haum rau faus ncaj qha rau hauv av.Cov armored MV mains fais fab cables feem ntau muab nrog tooj liab conductors tab sis lawv kuj muaj nrog txhuas conductors raws li kev thov rau tib tus qauv.Cov tooj liab conductors raug tso tseg (Class 2) whereas aluminium conductors tau ua raws li tus qauv siv ob qho tib si stranded thiab khoom (Class 1) kev tsim kho.