What does Article 424 deal with specifically?

Article 424 of the National Electrical Code specifically deals with fixed electric space-heating equipment. This article encompasses the requirements for the installation, design, and safety measures associated with electric heating appliances that are intended for fixed use within a building or structure, such as baseboard heaters, ceiling units, and wall-mounted heating units. It covers aspects such as installation methods, necessary clearances, wiring practices, and the types of equipment that are permissible for use in heating applications.

Understanding this article is crucial for ensuring that electric space-heating systems operate safely and efficiently while complying with the NEC standards. It emphasizes safety issues related to overcurrent protection, proper grounding, and circuit requirements specific to heating applications. This focus on fixed installations distinguishes it from other articles that may pertain to transportable or portable heating equipment.