What is the primary role of Article 352 in the NEC?

The primary role of Article 352 in the National Electrical Code (NEC) is to address the requirements for non-metallic raceways, particularly PVC (polyvinyl chloride) conduit. This article provides specifications that ensure safe and effective installation and use of PVC conduit in electrical systems, covering aspects such as the types of fittings, support requirements, installation methods, and performance criteria under various conditions.

While other articles of the NEC cover wiring methods, grounding, bonding, and electrical service installations, Article 352 specifically focuses on the properties and installation practices specific to PVC conduit, ensuring compliance with safety standards and effective electrical performance. Understanding this specialization is important for anyone involved in electrical installations or planning, as it helps ensure that the selected materials and installation methods promote safety and reliability in electrical systems.