CONDUCTOR INSULATED WITH PULP OVER A CELLULAR LAYER

摘要

HEARD-7 16. CONDUCTOR INSULATED WITH PULP OVER A CELLULAR LAYER A pulp-insulated conductor having excellent dielectric properties notwithstanding a substantially reduced diameter includes an electrical conductor enclosed in an insulative cover comprising a pulpous material and a layer having an effectively cellular structure interposed between the electrical conductor and the pulpous material. The pulpous material has a relatively low moisture content and is disposed concentrically about the conductor. The interposed layer includes a coating comprising a material which when covered with the pulpous material is capable of creating an adhesive bond between the pulpous material and the conductor to form an insulative cover having substantial integrity, with the coating having a cellular structure when the pulpous material is adhered to the conductor.