What is the requirement for protecting conduits passing through wooden framing members according to the NEC®?

The requirement for protecting conduits passing through wooden framing members is indeed specified in the National Electrical Code (NEC). When conduits, particularly metal ones, pass through wooden framing, they must be protected to prevent physical damage, especially from nails or other fasteners that might be used when working with the wood framing.

A steel plate is required in this situation because it provides a barrier that protects the conduit and the electrical wiring within it from being punctured or damaged. This is especially important since electrical conduits carry electrical wiring which can be hazardous if the integrity of the conduit is compromised.

Using steel plates as a protective measure ensures that conduits remain safe and functional over time, reducing the risk of electrical failures or hazards. This requirement applies not just to metal conduits but is often a standard approach for various types of conduits, reinforcing the importance of adhering to safety measures in electrical installations.

While some might consider that bushings might suffice or that no special requirements are necessary, the NEC is designed to enforce protective measures that ensure long-term safety and compliance with electrical codes. This emphasis on safety highlights why the use of a steel plate is the recognized method for providing adequate protection in these situations.