发明名称 |
ENERGY CABLE COMPRISING A DIELECTRIC FLUID AND A MIXTURE OF THERMOPLASTIC POLYMERS |
摘要 |
A cable includes at least one electrical conductor and at least one extruded covering layer including a thermoplastic polymer material in admixture with a dielectric liquid, wherein the thermoplastic polymer material includes (a) at least 75% by weight, with respect to the total weight of the thermoplastic polymer material, of at least one copolymer of at least two α-olefin co-monomers, the copolymer having a melting enthalpy lower than 25 J/g; and (b) an amount equal to or less than 25% by weight with respect to the total weight of the thermoplastic polymer material of at least one propylene homopolymer or propylene copolymer with at least one α-olefin, the at least one propylene homopolymer or propylene copolymer having a melting enthalpy higher than 25 J/g and a melting point higher than 130° C. The covering layer has a melting enthalpy equal to or lower than 40 J/g, and the concentration by weight of the dielectric liquid in the thermoplastic polymer material is lower than the saturation concentration of the dielectric liquid in the thermoplastic polymer material. |
申请公布号 |
CA2626131(A1) |
申请公布日期 |
2007.05.03 |
申请号 |
CA20052626131 |
申请日期 |
2005.10.25 |
申请人 |
PRYSMIAN CAVI E SISTEMI ENERGIA SRL |
发明人 |
BELLI, SERGIO;PEREGO, GABRIELE |
分类号 |
H01B3/44;C08L23/00;H01B7/00 |
主分类号 |
H01B3/44 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|