摘要:
In the design, construction and operation of a technical installation it is necessary to establish the precise run of a cable (16). In order to be able to determine the run of a cable or a plurality of cables (16), too, according to the invention a preferably modulated test signal (PS, PSm) taken through the or each cable (16) is identified by means of a number of detectors (6, 6') fitted along the cable carrier system (3).