Rapid Shutdown Solar Panels Requirements

However this isn t what happens and for good reason.

Rapid shutdown solar panels requirements.

In all the discussions i see about the issue of rapid shutdown the focus of attention is on the array and mleps. Nec 2014 pv rapid shutdown requirements were added to nec 2014 690 12 to improve electrical and fire safety hazards for first responders. Rapid shutdown gives the firefighters a way to also shut down the dc power from the solar array to the inverter. After nec 2014 took effect equipment suppliers responded one by one with proprietary solutions to help their customers meet array level rapid shutdown requirements.

System conductors may remain energized even after the electrical service disconnect has been opened. In 2014 it could shut it down to the area up to 10 from the solar array and more than 5 of entering a building. It is against metropolitan and municipal fire code for solar systems connected to the grid to stay turned on when the grid is down which demands the need for a rapid shut down mechanism in solar panels. This requirement is called a rapid shutdown.