Electric cable with laminated tape insulation

Details Electric cable with laminated tape insulation Electric cable with laminated tape insulation

H - Electricity

01

B

26/129, 337/80

H01B 3/52 (2006.01) B32B 27/10 (2006.01) H01B 7/02 (2006.01) H01B 9/06 (2006.01)

Patent

CA 2001154

A paper-polymeric material, laminated tape, an electric cable insulated with such tape and a method of making the tape. The tape includes a film of polymeric material to at least one surface of which a paper tape comprising cellulose fibers is bonded by contacting the paper tape at room temperature with the film heated to a temperature above its melting temperature. Prior to contacting the paper tape with the heated film, fibrils are caused to project from at least one surface of the paper tape by subjecting it to a high voltage, electrostatic field. In the laminated tape, the fibrils are embedded in the material of the film to provide an improved bond between the film and the paper tape.

Matériau papier-polymère, ruban laminé, câble électrique isolé au moyen de ce type de ruban et méthode de fabrication du ruban. Le ruban comprend un film de polymère, posé sur au moins une surface à laque; un ruban de papier de fibres de cellulose est liaisonné par contact du ruban de papier, à la température ambiante, avec le film chauffé à une température au-dessus de sa température de fusion. Avant qu'il y ait contact du ruban de papier avec le film chauffé, des fibrilles font saillie sur au moins une surface du ruban de papier lorsqu'il est soumis à un champ électrostatique à haute tension. Dans le ruban laminé, les fibrilles sont noyées dans le matériau du film pour assurer un liaisonnement amélioré entre le film et le ruban de papier.

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