Tri-Rated Cable
Nws tseem raug ntsuas rau kev siv los ntawm cov koom haum qauv ntawm Teb Chaws Asmeskas thiab Canada, yog li lub npe 'Tri-Rated', thiab tseem tuaj yeem hu ua tswj vaj huam sib luag hlau, switchgear cable, los yog tri-rated ib leeg (TRS) hlau.
