Quick Answer
Regularly inspect and maintain lightning protection systems by checking for signs of damage, corrosion, or deterioration, and perform tasks such as tightening connections and replacing components as needed. This ensures the system remains effective in protecting against lightning strikes and electrical surges. Annual inspections are recommended.
Inspecting and Cleaning Lightning Protection Systems
Inspect lightning protection systems including air terminals, down conductors, and grounding systems annually. Use a ladder to access air terminals, and inspect for signs of damage, corrosion, or deterioration. Clean air terminals with a soft brush to remove debris and ensure proper function. Use a multimeter to check for continuity between air terminals and down conductors.
Maintenance and Replacement of Components
Tighten all connections, including grounding system connections, annually to ensure a secure bond. Replace any damaged, corroded, or deteriorated components, including down conductors, grounding rods, and clamps. When replacing components, use materials that meet or exceed the original specifications to ensure the system remains effective. For example, use a grounding rod with a minimum of 10 feet of copper wire and a corrosion-resistant clamp.
Considerations for Solar Combiner Boxes
When integrating lightning protection systems with solar combiner boxes, consider using a lightning arrestor to protect against electrical surges. Install the lightning arrestor near the solar combiner box and ensure it is properly grounded. Also, specify a surge protection device (SPD) that meets the requirements of the solar combiner box manufacturer to provide additional protection against electrical surges.
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