What type of materials must be used to secure raceways according to NEC Article 300?

Materials that must be used to secure raceways according to NEC Article 300 need to be corrosion-resistant. This requirement ensures that the raceways maintain their integrity and functionality over time, especially in environments where moisture or other corrosive elements may be present. Corrosion-resistant materials help prevent deterioration that could lead to failures in the electrical system, ensuring safety and reliability.

Utilizing corrosion-resistant materials supports the long-term durability of electrical installations. This is particularly important in industrial, outdoor, and damp locations where exposure to various elements is a concern. By adhering to this guideline, electricians can ensure compliance with safety standards and minimize risks associated with electrical failures due to material degradation.