Abstract
Numerous advances in the formulation and processing of electrical insulating compounds based on chemically cross-linked polyethylenes have taken place since they were first introduced commercially in 1958. The result has been a new family of polyethylene based insulations covering a wide range of properties. A review of the available types of cross-linked polyethylene insulations reveals that their properties appear adequate for some applications as an integral insulation-jacket covering for wire and cable. In some cases, however, cable performance can be improved by the addition of a compatible jacket. This is true for unshielded single-conductor cables rated above 600 volts as well as for shielded cables and multiconductor cables.
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