A METHOD AND AN APPARATUS FOR HEAT TREATMENT OF AN ELECTRIC POWER CABLE

摘要

A method for heat treatment of an electric power cable (402), the electric power cable comprising a polymer-based electrical insulation system (404) comprising a polymer composition, the method comprising the steps of placing (503) the electric power cable having the polymer-based electrical insulation system into a heating chamber; and exposing (506) the polymer-based electrical insulation system to a heat treatment procedure when the electric power cable is located in the heating chamber. The step of placing the electric power cable into the heating chamber comprises winding (504) the electric power cable about a substantially vertical center axis (z-z) to form a substantially horizontal first layer (408) of a plurality of substantially horizontal turns (410) of the electric power cable; winding (505) the electric power cable about the center axis to form a plurality of substantially horizontal second layers (412), each second layer being formed by a plurality of substantially horizontal turns (414) of the electric power cable; and stacking (505) the plurality of horizontal second layers above the first layer. An apparatus for performing the method.