1. Ntxiv ib txheej shielding ntawm semi-conductive khoom nyob rau saum npoo ntawm tus neeg xyuas pib, uas yog equipotential nrog shielded conductor thiab nyob rau hauv kev sib cuag zoo nrog cov rwb thaiv tsev txheej, thiaj li tsis txhob ib feem ntawm tus neeg xyuas pib thiab cov rwb thaiv tsev txheej. Cov txheej txheem tiv thaiv no tseem hu ua txheej thaiv sab hauv. Tej zaum kuj yuav muaj qhov sib txawv ntawm qhov sib txuas ntawm cov rwb thaiv tsev thiab cov sheath, thiab thaum lub cable yog khoov, cov roj-daim ntawv cable rwb thaiv tsev nto yog ib qho yooj yim ua rau cov kab nrib pleb, uas yog ib feem ua rau cov paug tawm.
2. Ntxiv ib txheej shielding ntawm semi-conductive khoom nyob rau saum npoo ntawm rwb thaiv tsev txheej, uas muaj kev sib cuag zoo nrog lub shielded rwb thaiv tsev txheej thiab muaj peev xwm sib npaug nrog cov hlau sheath, thiaj li tsis txhob muaj ib feem ntawm lub rwb thaiv tsev txheej thiab lub sheath.
Txhawm rau kom sib npaug ntawm cov tub ntxhais thiab rwb thaiv tsev hluav taws xob, 6kV thiab siab dua qhov nruab nrab thiab siab voltage fais fab cables feem ntau muaj cov ntaub thaiv npog txheej thiab cov ntaub thaiv npog insulating, thiab qee qhov hluav taws xob qis tsis muaj ntaub thaiv npog. Muaj ob hom shielding txheej: semi-conductive shielding thiab hlau shielding.
