A residential addition requires the installation of new electrical wiring. The walls are open and accessible. What is the preferred wiring method for this situation?
- AConcealed wiring in walls
- BExterior wiring
- CUnderfloor wiring
- Conduit wiring
Exam tip
Conduit wiring is often the preferred method when walls are accessible during installation.
Why D is correct
According to 300.4(A), conduit wiring is the preferred method when walls are open and accessible. It provides protection and organization for the wiring and is suitable for temporary or permanent installations.