What is the definition of "Exposed" in the context of wiring methods?

The term "exposed" in the context of wiring methods refers to wiring that is placed on or attached to surfaces, or located behind panels that allow for easy access. This definition indicates that the wiring is visible and accessible rather than concealed. This visibility is important in terms of safety and compliance, as it allows for easier inspection, maintenance, and potential repairs.

Wiring that is buried underground would not fit the definition of "exposed," as it is concealed and not accessible for routine inspection. Similarly, insulation and protection from environmental hazards pertain to different characteristics of wiring that concern safety and durability, rather than visibility. Lastly, wiring that requires specialized tools for installation typically involves components that are not readily accessible or meant to be exposed, which further clarifies that "exposed" refers to wiring that is easily seen and accessed. Thus, the correct choice aligns with the intention of ensuring that wires can be observed and worked on when necessary.