FIELD: electricity.
SUBSTANCE: invention relates to a power cable of direct current, which contains a polymer composition and, probably, is cross-linkable and then cross-linked, as well as a method of producing a DC power cable, including a high-voltage DC power cable. DC power cable comprises a conductor enveloped by an inner semiconducting layer, an insulating layer and an outer semiconducting layer in the specified order. Herewith at least the insulating layer contains a polymer composition, which contains an ethylene polymer and an inorganic ion-exchange additive of hydrotalcite type in the amount of 0.000001–0.7 wt% with respect to the total weight of the polymer composition.
EFFECT: obtained cable has low conductivity and good mechanical properties.
10 cl, 2 dwg, 2 tbl, 4 ex
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