NABCEP PV Installation Professional Practice Exam 2025 - Free PV Installation Practice Questions and Study Guide

The use of storage batteries is governed by Article 480 of the National Electrical Code (NEC). This article specifically addresses the requirements for storage batteries, including installation, maintenance, and safety considerations. It outlines key aspects such as the types of batteries that can be used, proper enclosures, as well as spacing and access requirements to ensure safety and functionality over the lifespan of the battery system.

Understanding the specific provisions within Article 480 is crucial for ensuring that battery storage systems are safely integrated into electrical installations, particularly in the solar photovoltaic (PV) industry, where battery storage is becoming increasingly common as a means to enhance energy reliability and independence.

The other articles mentioned focus on different aspects of electrical installations. For instance, Article 690 deals with solar photovoltaic systems, while Article 705 pertains to the interconnection of distributed generation systems with the utility grid. Article 358 focuses on conduits and raceways, which do not specifically address storage batteries. Therefore, those articles are not applicable to the regulation of storage battery systems.