For manual fire alarm systems, how frequently must they be visually inspected?

For manual fire alarm systems, they must be visually inspected monthly to ensure proper functionality and compliance with safety regulations. This frequency allows for timely identification of any issues, such as damage to components or obstruction of manual pull stations, ensuring that they will operate correctly in the event of a fire.

Monthly inspections help maintain the integrity of the fire alarm system, confirming that all systems are in place and functioning as intended. This regular maintenance is vital as it contributes to the safety of personnel and property by ensuring that alarms will be activated promptly in case of an emergency. Regular visual inspections also provide an opportunity to check that any required signage or accessibility to manual activation devices is maintained.

The other options typically represent less frequent inspections, which do not align with the recommendation for ensuring the reliability of manual fire alarm systems in an active safety environment.