What does the term "premises wiring" encompass?

Premises wiring refers to the complete electrical system found within a building or structure, encompassing all types of wiring used for power distribution and control. This includes not only the interior wiring that connects outlets, switches, and fixtures, but also any exterior wiring that may be essential for supplying power to outdoor lighting, service equipment, or other electrical components.

By encompassing all interior and exterior wiring, the definition accurately reflects the comprehensive nature of electrical installations that can include permanent systems as well as those that may be outside the building's core structure, ensuring that all aspects of electrical service are considered in installations and inspections. Therefore, this choice correctly captures the full scope of what premises wiring encompasses, aligning with recognized industry standards and definitions.