MONITORING SYSTEM, SAFETY CABLE AND TUBE FOR SUCH A SYSTEM, AND METHOD FOR OPERATING A MONITORING SYSTEM

The invention relates to a monitoring system (2) comprising a safety cable (6) that has at least one line (20) along which a fault sensor device (12) extends, comprising a capacitor (28) which has twoelectrodes (30), and comprising an inductor (32) which is made of a conductor (42) that is electrically connected to one of the electrodes (30) such that a series resonant circuit is formed. By ascertaining a resonant frequency of the series resonant circuit, the state of the safety cable (6), in particular the wear of the safety cable, is determined and a possible future fault is predicted in particular. The invention further relates to a corresponding safety cable (6), in particular in the form of a prefabricated material available by the meter, and to a method for operating the monitoringsystem (2). 说明了种监控系统(2)，其具有安全线缆(6)，该安全线缆具有至少个线路(20)，故障传感装置(12)沿着线路延伸，故障传感装置具有电容器(28)和电感器(32)，电容器具有两个电极(30)，电感器由导体(42)形成，导体与其中个电极(30)电连接，使得构成串联谐振回路。通过获知串联谐振回路的谐振频率来确定安全线缆(6)的状态，尤其是其磨损，并且尤其是也预测未来的可能的故障。此外，还说明了种相应的安全线缆(6)，其尤其作为能组