What term refers to equipment that is constructed or protected so that weather exposure does not affect its operation?

The term "weatherproof" is specifically used to describe equipment that has been designed or constructed to operate effectively without being adversely affected by exposure to weather conditions, such as rain, snow, or extreme humidity. This designation ensures that the equipment can function in outdoor environments without risking damage or malfunction due to environmental factors.

In the context of electrical installations, weatherproof equipment is critical for safety and reliability, especially in locations where exposure to the elements is a concern. Such equipment typically has seals, coatings, and material selections that enhance its durability and prevent ingress of water or other environmental hazards.

While "moisture-resistant" also refers to protection against water, it does not encompass all types of weather exposure, which may include more than just moisture, such as wind and temperature fluctuations. "Corrosion-resistant" speaks to the ability of materials to withstand rust or corrosion, often due to moisture or chemicals, but does not imply complete protection from weather conditions. "Temperature-rated" refers to equipment designed to operate within specific thermal limits but does not address the challenges posed by moisture or other weather-related elements. Thus, "weatherproof" is the most comprehensive term for this context.