NEC 2017 706.11(B) Facilities with Stand-Alone Systems
For buildings with stand alone PV systems, plaques or directories must be installed. These directories must clearly identify the locations of power source disconnects for all systems, streamlining inspection and emergency response.
This ensures that anyone working on, or responding to the building can quickly find and isolate every critical energy source, greatly improving safety and code compliance in multi-source electric environments.
