Lithapo tse holimo tse rekisoang ke k'hamphani ea rona li entsoe ka thepa e khethiloeng e tsoang kantle ho naha, 'me lisebelisoa tse khethiloeng bakeng sa lesela la tšireletso la lead-aluminium li hlahlojoa lera ka lera, ho kenyeletsoa conductor e bonolo le sheath e kantle e koahetsoeng ka conductor e bonolo, e bopiloeng ka palo ya mehala e tshesane ya koporo.Khoele e ’ngoe le e ’ngoe ea terata e ntle ea koporo e entsoe ka lithapo tse ’maloa tse tšesaane tsa koporo, ’me terata e tšesaane ea tšepe e hlophisoa terateng e ’ngoe le e ’ngoe e ntle ea koporo.Thapo ea ho tlatsa e hlophisitsoe ka mokhanni o bonolo, 'me lesela la ho itšehla thajana, lesela le sireletsang le lera le lohiloeng le hlophisitsoe pakeng tsa sheath e ka ntle le mokhanni o bonolo ho tloha ka ntle ho ea ka hare.Melemo ke: ho hanyetsa kutu, ho hanyetsa mocheso o phahameng, ho hanyetsa mocheso o tlase, ho hanyetsa serame, ho hanyetsa UV, ho hanyetsa botsofali, thepa e tsitsitseng le thepa ea torsional.
Bokahare ba pitsa ea thapo e tsamaeang ho lokisa thapo ho thibela khohlano ha thapo e khutla ho kobeha, 'me lipheletsong tse peli li tiisitsoe ka mofuta o mocha oa lisebelisoa tse phahameng tse thata ho thibela metsi.Kalafo e thata ea ho omisa e lokela ho etsoa pele ho potting lisebelisoa tsa lik'hemik'hale tse kang epoxy resin le phofo ea quartz, e le hore li-bubble le mongobo li se ke tsa kena ka har'a plug ea cable, 'me moeli oa sheath ea etellang pele o lokela ho kenngoa le ho matlafatsoa.