Quick Answer
For a safe and reliable lightning protection system, it's highly recommended to hire a professional for installation, as improper installation can increase the risk of damage or even injury.
Choosing the Right System
When it comes to selecting a lightning protection system (LPS) for your solar installation, it’s essential to consider the size and complexity of your system. A basic LPS for a small solar array (less than 10 kW) can be installed by a qualified electrician or solar technician, but for larger systems, it’s recommended to hire a professional with experience in LPS installation. The National Fire Protection Association (NFPA) standards require a certified LPS inspector to verify the system’s compliance with safety codes.
Installation and Maintenance
A professional LPS installation involves grounding rods, air terminals (lightning rods), down conductors, and surge arresters. The air terminals should be installed at the highest point of the structure, and the down conductors should be sized to handle the maximum current expected from a lightning strike. It’s also crucial to ensure that the system is properly grounded and bonded to prevent electrical shock. Regular maintenance is necessary to ensure the system remains effective, including inspecting the system for damage or corrosion and cleaning or replacing components as needed.
Certifications and Inspections
To ensure compliance with safety codes, it’s essential to hire a certified LPS installer. The installer should provide documentation of the system’s installation and inspection, including certification from a recognized authority such as the NFPA or the International Association of Electrical Inspectors (IAEI). A periodic inspection of the system is also required to verify its continued effectiveness and compliance with safety codes.
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