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In a multicore high voltage cable where each core is surrounded by extruded polyolefin insulation (a,b,c) and all are surrounded by a common insualting layer of polyolefin and an electrically conducting screen, the insulated conductors are overwrapped individually and pref. also as a gp., with a layer or tape of porous material.
RO1988132708A1988-03-231988-03-23High tension voltage poliphased cable
RO100950A2
(en)
Method and device for determination of the condition of the insulation of an object made of an electrically conducting material,coated with an electrical insu