Tag: rapid system shutdown

  • Get to know NEC 2017 revisions: Updated PV labels, rapid system shutdown

    Many changes are occurring with labeling requirements covered by Article 690 as we move toward the release of the NEC 2017 code revision. PV systems grow and evolve, and the required labeling must change with them to ensure safe and informative installations. Like any evolving process, input from many sourcesRead More — Solar Builder magazine

  • Rapid System Shutdown: Questions and Solutions

    The updated 2014 National Electrical Code’s (NEC) manual, Section 690.12, says that a PV system needs to be able to reduce the voltage and current to 30 volts and 240 volt-amps, within a 10-ft perimeter of the array after rapid shutdown is initiated. It’s a straightforward name and concept, butRead More — Solar Builder magazine