What type of cord does NEC Article 400 focus on?

NEC Article 400 specifically addresses flexible cords and cables, which are designed for use in various applications where flexibility is required. This includes portable equipment, temporary installations, and other scenarios where standard wiring methods are not practical. Flexible cords are typically used to connect portable appliances to receptacles and may come in different configurations based on their intended use, such as lighter-duty applications for home appliances or more robust designs for construction and industrial settings.

The focus on flexible cords and cables reflects their versatility and the specific requirements for safety and performance outlined in the NEC. This includes provisions for the materials, construction, and usage of these cords to ensure they can withstand the conditions they will be exposed to, including mechanical stress and environmental factors.

By defining standards for flexible cords and cables, NEC Article 400 plays a crucial role in promoting safe and reliable electrical installations across various settings, ensuring that these essential components meet required safety and performance criteria.