Which article covers the installation and use of switches?

The installation and use of switches are covered under Article 404 of the National Electrical Code (NEC). This article provides guidelines related to the installation practices, types of switches, their ratings, and relevant safety considerations. Specifically, it outlines the requirements for the proper operation of switches, ensuring that they are installed in a way that minimizes risks of electrical hazards while meeting functionality standards.

Understanding the requirements in Article 404 is crucial for electricians to ensure compliance with safety regulations and to facilitate effective control of electrical circuits. This includes considerations such as the proper placement of switches, the types of switches that can be used based on their intended application, and their compatibility with various electrical loads. Additionally, Article 404 addresses the need for accessibility and operational reliability, which are fundamental aspects of installing electrical equipment.

In contrast, the other articles listed focus on different aspects of the electrical installation process, such as conductors and raceways for Article 392 or car interior wiring for Article 394, which do not pertain specifically to switches. Therefore, Article 404 stands out as the definitive reference for switch installation and usage guidelines.