Abstract: An adhesive tape is disclosed which is useful for binding electrical conductors. The tape is liquid-permeable so that the conductors can be impregnated with liquids such as varnishes and resins. It comprises a liquid-permeable support material, one side of which is coated with an adhesive. The adhesive covers less than 50% of the coated side.

Abstract: Electric wire coated by a non-flammable resin, characterized in that the resin is composed of two layers, the degrees of crosslinking of which are different from each other, and the gel percent of the outer portion of the resin is lower than that of the inner portion of the resin is disclosed.

Abstract: A flexible electrical power cable is described. The cable comprises a flexible metallic conductor and a plurality of alternately wrapped insulating layers comprising (1) at least two spirally wound layers of a tape made from mica paper and from a sheet of fibers which are resistant to temperatures up to at least 300.degree. C, the tape being impregnated with an adhesive silicon resin and (2) a layer of temperature-resistant plastic film or sheeting which is stable to at least 300.degree. C.

Abstract: Insulated electric power cables comprising a cured insulating material applied over a conductor and a layer of plastic compound comprising 100 parts by weight of a thermoplastic resin and 5-70 parts by weight of calcium oxide as a moisture-absorbing agent, overlying the insulating material and, optionally, lying between the conductor and the insulating material. The presence of calcium oxide serves to absorb steam before it penetrates into the insulating material through the layer of plastic compound being cured by steam, whereby the cured insulating material is free of microvoids and possess good insulation characteristics.