OIL IMMERSED INSULATING PLASTIC LAMINATE PAPER, KRAFT PAPER USED IN THIS PLASTIC LAMINATE PAPER AND POWER CABLE USING THIS CRAFT PAPER

摘要

PROBLEM TO BE SOLVED: To enhance adhesive strength between a plastic film of plastic laminate paper and kraft paper simultaneously with enhancing also impulse dielectric breakdown strength when the plastic laminate paper is used as an oil immersed insulator of an OF cable or the like. ;SOLUTION: Kraft paper 1 pasted together in both surfaces of a plastic film 2 is formed in two layers or more with different airtightness. The kraft paper is fixed together so as to bring the layer 1a of low airtightness into contact with the plastic film 2 and so as to expose the layer 1b of high airtightness in a surface.;COPYRIGHT: (C)1997,JPO