Process for identifying high-current cable cores or lines

摘要

A device (15) with which colorant (16) dissolved in an appropriate medium is applied to the naturally coloured PVC insulation of a high-current cable core or line (9) is disposed directly behind the injection head (11) of an extruder (10). In the process the colorant diffuses into the insulation - largely on account of the intrinsic heat of the insulation - and the solvent evaporates. <IMAGE>