NEC 314.22 Exception requires that a surface extension from an outlet box cover be made using____.

• A. Flexible conduit or cable
• B. Rigid conduit
• C. PVC conduit
• D. Armored cable

Answer: (A)

The idea being tested is how to connect a surface extension from an outlet box cover in a compliant way. The exception in this NEC rule allows using a flexible wiring method because it can bend and adapt to the small, curved path from the box to the surface extension without putting stress on the box, terminations, or cover. Flexible conduit or flexible cable can be routed neatly around a surface and secured properly, reducing strain and damage risks. Rigid conduit would be too stiff for the short, curved run and could pull on the box or connections, and armored cable isn’t the method this exception specifies for this surface-extension scenario.