H - Electricity – 01 – B
Patent
H - Electricity
01
B
H01B 7/00 (2006.01) H01B 7/04 (2006.01) H01B 7/18 (2006.01) H01B 9/00 (2006.01) H01B 13/14 (2006.01)
Patent
CA 2429985
The present invention relates to a manufacturing process of a multipolar cable comprising at least one pair of cores, each core comprising at least one conductive element and at least one layer of electrical insulation in a position which is radially external to said at least one conductive element. This process comprises the steps of: a) assembling said at least one pair of cores so as to form an assembled element having a plurality of interstitial zones between said cores, and b) depositing by co-extrusion an expandable polymeric material in a position which is radially external to said cores so as to fill said interstitial zone and to form a filling layer of substantially zone and to form a filling layer of substantially circular transverse cross section, and at least one containment layer of polymeric, and at least one containment layer of polymeric material in a position radially external to said filling layer. The present invention also relates to a multipolar cable obtained from said process.
L'invention concerne un procédé de fabrication d'un câble multipolaire qui comprend au moins une paire de noyaux, et chaque noyau comprend au moins un élément conducteur et au moins une couche d'isolation électrique dans une position qui est radiale par rapport audit élément conducteur. Ce procédé comprend les stades suivants: a) assembler cette paire de noyaux de manière à former un élément assemblé qui possède plusieurs zones interstitielles entre lesdits noyaux; b) déposer par co-extrusion un matériau polymère extensible dans une position radialement extérieure audits noyaux de manière à remplir la zone interstitielle et former une couche de remplissage d'une zone de coupe transversale sensiblement circulaire puis former une couche de remplissage ainsi qu'au moins une couche de retenue d'un matériau polymère, dans une position radialement extérieure à ladite couche de remplissage. La présente invention concerne aussi un câble multipolaire obtenu par ce procédé.
Balconi Luca
Bareggi Alberto
Belli Sergio
Bossi Paolo
Veggetti Paolo
Kirby Eades Gale Baker
Pirelli & C. S.p.a.
Prysmian Cavi E. Sistemi Energia S.r.l.
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