What is the testing frequency for supervisory valve switches on automatic dry standpipes?

The correct testing frequency for supervisory valve switches on automatic dry standpipes is semiannually. This requirement is essential to ensure that the supervisory functions of the valve switches are operational, which is crucial for the effective management of the water-based fire protection system. Regular testing helps to identify any malfunction or failure in the supervisory circuits that could compromise fire safety in buildings equipped with dry standpipes. By adhering to a semiannual schedule, necessary maintenance actions can be taken promptly, thereby enhancing the reliability of the fire protection system when it is needed most. Regular checks are also aligned with industry standards and best practices that prioritize safety in fire protection measures.