How frequently must a bonding resistance test be conducted on an LPS?

A bonding resistance test is essential to ensure that all metallic parts of a lightning protection system (LPS) are electrically connected to minimize the risk of lightning strike damage and ensure safety against electrical shock. The frequency of conducting these tests is laid out in safety regulations and guidelines, which are designed to maintain the effectiveness of the bonding over time.

Conducting bonding resistance tests every 24 months is standard practice as it allows enough time to identify any deterioration in the system's integrity due to factors like corrosion, moisture, or mechanical movement. This regular interval helps ensure that any issues can be detected before they pose a safety risk. Regular testing is critical in maintaining not only the operational safety of the equipment and personnel but also compliance with safety standards.

Therefore, the specified time frame of 24 months strikes the right balance between thorough monitoring and practical maintenance schedules, ensuring continued reliability and safety in explosive and electrical environments.