H - Electricity – 01 – B
Patent
H - Electricity
01
B
H01B 3/44 (2006.01) H01B 13/14 (2006.01)
Patent
CA 2418067
The present invention relates to a process for producing a cable, particularly for medium or high voltage electrical power transmission or distribution, said process comprising the step of making at least one coating of said cable from an oriented thermoplastic polymeric material, said thermoplastic polymeric material comprising a homopolymer of propylene or a copolymer of propylene and selected olefinic comonomer. In detail, this process comprises the steps of feeding at least one conductor of said cable to an extruding machine, extruding said at least one coating into a position radially external to said at least one conductor, orienting said at least one coating during said extrusion step. The present invention also relates to a cable, particularly for medium or high voltage electrical power transmission or distribution, provided with a coating of oriented thermoplastic polymeric material.
La présente invention concerne un procédé de production d'un câble, en particulier pour la transmission ou distribution d'énergie électrique moyenne ou haute tension. Ledit procédé consiste à produire au moins un revêtement du câble à partir d'un polymère thermoplastique orienté, ledit polymère thermoplastique contenant un homopolymère de propylène ou un copolymère de propylène et un comonomère oléfinique sélectionné. Ce procédé consiste plus précisément à acheminer au moins un conducteur dudit câble vers une machine à extruder, à extruder ledit revêtement dans une position radialement extérieure au conducteur, à orienter le revêtement pendant la phase d'extrusion. Cette invention concerne également un câble, en particulier pour la transmission ou distribution d'énergie électrique moyenne ou haute tension, pourvu d'un revêtement en polymère thermoplastique orienté.
Albizzati Enrico
Bareggi Alberto
Castellani Luca
Dell'anna Gaia
Scelza Cristiana
Kirby Eades Gale Baker
Pirelli Cavi E. Sistemi S.p.a.
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