How frequently should a load voltage test be conducted on the batteries of a fire alarm system?

Conducting a load voltage test on the batteries of a fire alarm system is crucial for ensuring that the system remains operational during a power failure. The correct frequency for performing this test is semiannually, which is considered a balance between maintaining system integrity and practical usage of resources.

Performing these tests semiannually allows for timely detection of any issues with the battery's capacity or performance that could compromise the effectiveness of the fire alarm system in an emergency. This frequency is aligned with industry standards and manufacturer recommendations, ensuring that the batteries are consistently evaluated for their functionality and reliability.

The other frequencies mentioned may not provide adequate oversight. Monthly testing could lead to unnecessary wear and tear or could divert attention from more critical maintenance tasks. Quarterly testing, while more frequent than the semiannual requirement, may not be needed to catch issues early enough. Annually, although better than not testing at all, may allow too much time between evaluations, potentially putting safety at risk if the batteries fail unexpectedly. Therefore, semiannual testing strikes the right balance for maintaining the essential operation of fire alarm systems.