How should raceways or bushings that enter a building be positioned?

The correct positioning of raceways or bushings that enter a building is to have them sloped upward from outside. This design is crucial for ensuring that any water or moisture that may enter the raceway does not accumulate within the building. By sloping upward, rainwater or other forms of precipitation can easily drain away from the structure, reducing the risk of water damage to the electrical systems housed within the raceway. This practice aligns with building codes and best installation practices, which prioritize the prevention of moisture intrusion into electrical systems.

Positioning raceways level with the building foundation could potentially lead to water pooling, while horizontal arrangements might not facilitate proper drainage, creating similar risks of moisture accumulation. Additionally, while it is essential for raceways to be securely fastened to prevent movement and ensure safety, this fact does not directly relate to their required angle or slope when entering a building. The emphasis on drainage is what underscores the importance of having the raceways sloped upward from the outside.