Which section in the NEC outlines the requirement for protecting conduits and raceways from physical damage?

The requirement for protecting conduits and raceways from physical damage is indeed outlined in Section 300.4 of the National Electrical Code (NEC). This section specifies the methods and materials that must be used to guard against physical damage to electrical wiring methods. It addresses the necessary protection for wiring systems that are installed in locations where they could be subject to impacts or other forms of physical harm.

Section 300.4 outlines specific conditions and requirements, such as the use of nonmetallic raceways, concrete encasement, or appropriate coverings in areas where conduits are exposed to potential damage. This ensures that electrical installations remain safe and functional, while minimizing the risk of failures due to environmental factors or accidental impacts.

The other sections mentioned do not specifically focus on the topic of protecting conduits and raceways. For example, Section 300.1 provides general installation requirements, Section 400.3 deals with flexible cords and cables, and Section 250.12 addresses grounding and bonding. Thus, Section 300.4 is clearly the relevant section for this particular requirement.