What must fixed electrical equipment and wiring comply with according to safety regulations?

Fixed electrical equipment and wiring must comply with NFPA 70, which is the National Electrical Code (NEC) established by the National Fire Protection Association. This code outlines the standards for safe electrical installations and ensures that electrical systems are designed, installed, and maintained in a way that protects life and property from electrical hazards. Compliance with NFPA 70 is essential as it covers the requirements for various electrical installations, including those in potentially hazardous locations, and sets forth guidelines that help prevent electrical fires and other safety issues.

While other options may reference specific parts of electrical safety regulations or standards, NFPA 70 serves as the comprehensive guide for electrical installations, making it the key reference for the safe design and operation of electrical systems.