How long can the RCT operate with a medium set on the automatic brakes before a dragging brake fault occurs?

The correct duration for how long the Remote Control Operator (RCT) can operate with a medium set on the automatic brakes before a dragging brake fault occurs is 30 seconds. This time frame is important because it indicates the maximum period during which the system can function effectively while still ensuring safety protocols are maintained.

If the automatic brakes are engaged longer than this period, the system can detect a fault condition that may lead to safety hazards, such as decreased control or damage to the equipment. This limit is established to promote efficient operation while preventing the potential issues related to prolonged brake engagement, which may adversely affect the train's performance and safety. Understanding this limit is crucial for operators to maintain both operational efficiency and adherence to safety regulations.