Where can requirements for wiring methods and materials be found in the WAC codes?

The correct answer is found in Article 300 of the Washington Administrative Code (WAC), which covers the general requirements for wiring methods and materials. This article provides essential guidelines regarding the suitable types of conductors, cable selections, raceways, and boxes for electrical installations. It outlines the specific requirements to ensure safety and compliance with established standards for the installation and use of electrical systems.

Article 200 primarily focuses on the general provisions for conductors and covers topics such as service entrance conductors, but it does not dive into the specific wiring methods in detail. Article 400 addresses temporary wiring provisions and mobile or portable equipment, while Article 500 pertains to hazardous locations, outlining the requirements for electrical installations in areas with combustible dust or gases. Therefore, for comprehensive information regarding general wiring methods and materials, Article 300 is the key reference point in the WAC codes.