Abstract: Improved electrical insulating tapes are disclosed having a poly(ethylene terephthalate) film component. The film has one amorphous surface and an opposite crystalline surface. In a preferred embodiment, a composite insulating material is provided having the film component with a fiber glass yarn strand layer adhered thereto. The fiber glass yarn strands are substantially continuous and uninterrupted, and are substantially parallel to the axis of elongation of the tape, and to each other.

Abstract: The disclosure relates to a tape supply package having a plurality of different tapes wound thereon in a universal or traverse wound arrangement. Apparatus and a method for traverse winding the package are disclosed. The disclosure also relates to apparatus and a method for simultaneously wrapping a plurality of different tapes around the outer portion of an elongated structure such as an electrical conductor by the use of the tape supply package having the plurality of traverse wound tapes. The disclosure further relates to various multiple tape-wrapped elongated constructions such as electrical conductors which have a plurality of partially overlapped tapes which have been simultaneously applied.