Electric cable (20), in particular for power transmission or distribution at medium or high voltage, comprising a metallic screen (5) and a water swellable layer (21) capable of forming a barrier to the water penetration provided in a position radially external to said metallic screen (5). Said water swellable layer (21) is made of an expanded polymeric material in which a water swellable material, preferably in the form of powder, is embedded.
申请公布号
WO0146965(A1)
申请公布日期
2001.06.28
申请号
WO2000EP12769
申请日期
2000.12.15
申请人
PIRELLI CAVI E SISTEM I.P.A.;BELLI, SERGIO;BAREGGI, ALBERTO;VEGGETTI, PAOLO;CASTELLANI, LUCA;POZZATI, GIOVANNI;BALCONI, LUCA