Quick Answer
To protect solar equipment during storms, ensure secure mounting, use weather-tight connectors, and consider installing storm surge protectors and lightning arresters. Regular maintenance is also crucial to prevent damage. Proper planning can save equipment and prevent costly repairs.
Securing Mounting and Connectors
Securing your solar panels and mounting equipment is the first step in storm protection. Ensure that all panels and racking systems are properly secured and tied down, using a minimum of 1/4 inch stainless steel lag screws and bolts. Weather-tight connectors, such as Deutsch DT or Molex connectors, should be used to connect wiring between panels and the combiner box. These connectors provide a secure seal against moisture and debris.
Storm Surge Protectors and Lightning Arresters
Storm surge protectors and lightning arresters are essential for protecting your solar equipment from the high winds and lightning associated with severe storms. Install a Type 1 or Type 2 surge protector, such as the Eaton SPP3000 or the Schneider Electric LCP series, to protect your equipment from voltage spikes and surges. These devices can be installed at the combiner box or inverter and can be set to trip and disconnect power to the system during a storm.
Combiner Box Protection
The solar combiner box is a critical component in your solar array and should be protected from the elements. Ensure that the box is installed in a weather-tight location, such as a NEMA 3R or NEMA 4 enclosure, and that all wiring and connections are secure and weather-tight. Consider installing a combiner box with built-in surge protection, such as the Eaton B Series or the Schneider Electric X series, to provide an additional layer of protection against power surges and spikes.
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