Quick Answer
Continued education on NEC 690.12 is necessary for installers to ensure compliance with the National Electrical Code's requirements for solar rapid shutdown systems, which prevent arc faults and electrical shock.
Understanding NEC 690.12 Requirements
The National Electrical Code (NEC) requires solar photovoltaic (PV) systems to incorporate rapid shutdown systems in accordance with NEC 690.12. This regulation ensures the safety of people and animals by rapidly shutting down the PV system’s power in the event of a fault or accident. Installers must be knowledgeable about the specific requirements for rapid shutdown systems, including the required shut down time (6 seconds) and the shutdown voltage threshold (30% of the maximum voltage).
Training and Certification
To ensure compliance with NEC 690.12, solar installers should undergo training and certification programs that cover the requirements for rapid shutdown systems. These programs should include hands-on training and classroom instruction on the installation and testing of rapid shutdown devices, as well as the use of specialized tools for testing and verification. Installers who have completed these programs will have the necessary knowledge and skills to design and install solar PV systems that meet the requirements of NEC 690.12.
Best Practices and Code Compliance
To maintain code compliance and ensure the safety of people and animals, solar installers should follow best practices when designing and installing rapid shutdown systems. This includes selecting and installing rapid shutdown devices from approved manufacturers, using specialized testing equipment to verify the shutdown function, and documenting the installation and testing procedures in accordance with NEC requirements. By following these best practices, installers can ensure that their solar PV systems meet the requirements of NEC 690.12 and provide safe and reliable operation for years to come.
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