NFPA 70, National Electrical Code (NEC) Handbook, 2023 Edition

Only the NEC handbook, 2023 edition, offers: Integrated expert commentary positioned in line with NEC text Summary of Technical Changes table demonstrating where and why code changes occurred between editions A cross-reference feature to help you quickly find related information in other articles or sections Hundreds of full-color photos and illustrations, including schematics, floor plans, and cross-sectional graphics Key revisions to NEC 2023 include: New general criteria for all electrical systems, including a rule requiring level/flat surfaces within the working space for electrical equipment and expanded provisions covering the use and approval of reconditioned electrical equipment Changes impacting residential electrical systems, ranging from expanded ground-fault circuit interrupters (GFCI) requirements for specific appliances and new requirements for optional installation of receptacle outlets serving island and peninsular countertops and work surfaces Introduction of commercial/industrial electrical systems requirements for GFCI for special appliances, the use of replacement panelboards, and expansion of arc-fault circuit interrupter (AFCI) protection provisions Increased focus on alternative energy systems and emergency management, including revised requirements on the interconnection of distributed on-site power supplies with electric utility supplies, edits to Article 480 to delineate storage battery systems from energy storage systems (ESS), and new rules on commissioning of ESS New articles and requirements for never-before covered systems and equipment such as Class 4 fault-managed circuits, hazardous locations within commercial and industrial cannabis production facilities, equipotential bonding in and around areas with splash pads, insulated bus pipe/tubular covered conductor systems, and more