SETT ATT ANBRINGAEN ISOLERING AV TVERBUNDEN POLYMER PA EN KABELLEDARE

摘要

An insulation of cross-linked polymer is extruded about a cable conductor and cross-linked by means of heating in a vulcanization tube. The heating is effected by radiation energy, at least the main part of the radiation having wavelengths between 0.76 mu m and 4 mu m and a tube which is permeable to the radiation being used as vulcanization tube.