In sewage treatment plants, energy chains are in operation around the clock, 365 days a year. Despite this continuous load, downtimes of the pipework systems should always be avoided, which requires particularly robust and durable systems and components. But chain guidance alone is often not enough. This is because most sewage treatment plants run for a large part of the time without any human presence. Therefore, malfunctions and possible misbehaviour sometimes remain undetected for hours. Although the chains move at a very slow speed, a malfunction usually leads to a complete total loss. This total loss of the cable carrier system leads to significantly higher costs than a shutdown lasting several hours, where the system can be put back into operation after a short maintenance period. Without human supervision, the corrective element is missing.