| 摘要 |
The line (5) has a set of insulated electrical conductors (6-8) surrounded by a common electrically effective screen (9). A light conductor (10) is presented in construction of the line over entire length of the line. The light conductor is connected to an evaluating unit that is connected to a switching element in an operating position and integrated in the screen or directly underneath the screen while contacting the screen such that damage to the line produces with certainty of deformation of the light conductor that results in a signal to be recognized by the evaluating unit. |
