Which location is defined as damp according to electrical wiring standards?

The definition of "damp" in the context of electrical wiring standards refers specifically to locations that are sheltered but can still be subject to moisture accumulation, thus requiring certain considerations for electrical installations. The area under canopies or roofed open porches falls into this category because it is not entirely enclosed, meaning it can experience high humidity or moisture from rain or dew, even if it is not directly exposed to precipitation.

In contrast, outdoor areas exposed to rain would be classified as "wet" rather than damp, as they are directly subject to water from the elements. Indoor basements and utility rooms, while they can indeed be moist, do not typically fit the specific definition of "damp" as they are considered enclosed spaces. These distinctions are crucial in identifying appropriate electrical standards and necessary equipment to prevent hazards such as short circuits or shocks.