Are ground-mounted solar arrays exempt from rapid shutdown?

Many people wonder if ground mounted solar arrays can skip using a Rapid Shutdown Device. The answer is clear: most cases do not allow exemption. A Rapid Shutdown Device is key to PV system safety. It protects workers and emergency responders. Let’s explain this honestly and clearly, using details from Zhejiang Soutya New Energy’s PLC communication control Rapid Shutdown Device.

1. No universal exemption from international standards

Major safety standards do not give general exemptions to ground mounted solar arrays. Standards like NEC 690.12 and IEC 60364-7-712 require rapid shutdown for most PV systems, including ground mounted ones.

These standards focus on reducing high voltage hazards. Even ground mounted arrays generate high DC voltage. They need a Rapid Shutdown Device to cut voltage to safe levels quickly. Soutya’s Rapid Shutdown Device meets these standards, ensuring compliance for ground mounted projects.

2. Exceptions are rare and strict

Few regions allow exemptions for ground mounted solar arrays. Exceptions only apply to small arrays in remote areas. These areas have no risk of people or emergency teams accessing the array.

The strict conditions are hard to meet. Most commercial or utility scale ground mounted arrays cannot qualify. Even small arrays need approval from local electrical authorities. It is safer to install a Rapid Shutdown Device than to seek an exemption.

3. Safety risks make exemption unwise

Ground mounted solar arrays still face safety risks. Firefighters or maintenance workers may need to access the site during emergencies. A Rapid Shutdown Device can lower voltage to 30V or less within 30 seconds, eliminating shock risks.

Soutya’s Rapid Shutdown Device uses PLC communication for quick activation. It works well in large ground mounted arrays, even with long wiring. It ensures safety and avoids compliance issues that could delay projects.

In short, ground mounted solar arrays rarely get exempt from rapid shutdown. A Rapid Shutdown Device is necessary for safety and compliance. Soutya’s product is a reliable choice, fitting the needs of ground mounted PV systems and meeting global standards.