Which location must permanently identifiable plaques be placed at according to the identification requirement?

• A. At each feeder and branch-circuit disconnect location
• B. Only at the main service disconnect
• C. At the building’s exterior wall
• D. Only on the meter enclosure

Answer: (A)

Identification plaques are used to clearly identify every point where electricity can be disconnected, so someone working on the system knows exactly which circuits are controlled by each device. In a setup with multiple feeders and branch circuits, labeling each disconnect ensures quick, accurate de-energization during maintenance or emergencies and reduces the risk of accidentally shutting off or energizing the wrong circuit. If labeling were required only at the main service disconnect, there would be no clear identifier for the other disconnects, creating confusion and potential hazards. Labels on exterior walls or meter enclosures don’t guarantee visibility at the actual disconnects. Therefore, plaques must be placed at each feeder and branch-circuit disconnect location.