How many trained personnel must be on duty at a supervising station?

To ensure effective monitoring and response to alarm signals, a supervising station is required to have a minimum of two trained personnel on duty at all times. This requirement is critical for maintaining safety and operational integrity, allowing one individual to monitor the systems while the other is able to respond immediately to any alarms or incidents. This redundancy helps to ensure that there is always someone available to take action, which is especially important in emergency situations where quick decision-making and intervention can be vital. Having two trained personnel also helps to mitigate the risk of errors caused by fatigue or distraction, thus enhancing the overall reliability of the supervising station.