What does Article 406 primarily pertain to?

Article 406 of the National Electrical Code (NEC) specifically addresses receptacles, cord connectors, and attachment plugs. This article outlines the requirements for the installation and use of these electrical components to ensure safety and proper functioning.

Receptacles are essential elements in electrical systems, as they provide the points for plugging in appliances and equipment. The article includes specifications on types of receptacles, their ratings, installation practices, grounding requirements, and even considerations for weather-resistance in outdoor settings. By focusing on these elements, Article 406 aims to mitigate hazards such as shock and fire that could arise if improper receptacles or connectors are used.

Understanding this article is key for electricians and electrical engineers, as adhering to these guidelines not only ensures compliance with the NEC but also enhances overall safety and reliability of electrical installations.