What must outdoor installations according to NEC Article 300.26 prevent?

In outdoor installations, the NEC Article 300.26 emphasizes the importance of preventing physical damage from environmental conditions. This is crucial because outdoor wiring and equipment are exposed to various elements, such as rain, snow, wind, and UV radiation from sunlight. If installations are not protected from such environmental factors, the integrity of the electrical components can be compromised, leading to failures or hazardous situations.

By ensuring that outdoor installations are resilient against physical damage, safety and functionality are maintained. For instance, protective measures may include using weatherproof enclosures, selecting materials that resist corrosion or heat, and choosing appropriate methods of cable installation that can withstand adverse weather conditions. These measures are essential to ensure compliance with safety standards and prolong the lifespan of the electrical system.

While other options may address relevant concerns, such as unauthorized access and temperature effects, they do not encompass the specific focus on physical damage outlined by this particular article in the NEC.