What might not necessarily be covered by the National Electrical Code?

The efficiency of wiring installation is not specifically covered by the National Electrical Code (NEC). The NEC primarily focuses on safety standards and minimum requirements to ensure electrical installations are safe for both users and equipment. It sets guidelines to prevent electrical hazards and promote proper installation practices.

Efficiency concerns, such as energy efficiency or the optimization of wiring systems for performance, fall outside the scope of the NEC. While efficient installations may be a goal for many electricians and engineers, the NEC does not dictate how efficiently wiring must be installed; it only ensures that installations are safe and compliant with established safety standards.

In contrast, the other options you are considering are directly addressed by the NEC. General safety procedures are fundamental to its guidelines, as the code aims to protect lives and property by implementing standards that manage the potential risks associated with electrical systems. Installation methods for high voltage equipment are also included, as they require specific safety measures to ensure safe operation. Lastly, minimum safety standards are a core component of the NEC, covering aspects such as the appropriate materials, protective devices, and installation techniques necessary to maintain electrical safety.