Ikhebhula yeCopper Core Concentric Cable yenziwe ngenye okanye ezimbini eziqinileyo ezisembindini okanye ngobhedu oluthambileyo olubotshelelweyo, kunye nePVC okanye iXLPE yokugquma, umqhubi wangaphandle owenziwe ngeengcingo ezininzi ezithambileyo zobhedu ezibotshwe kwisingxobo sangaphandle esijikelezayo nesimnyama esinokuthi senziwe ngePVC, ipolyethylene ye-thermoplastic. okanye XLPE.