Washington – NEC 2026 Code Update

Covers changes in the 2026 National Electrical Code, beginning with the reorganized scope in Section 90.2 and the Article 110 requirements for available fault current, arc-flash and fault current labels, and working space for DC systems. Participants then review dwelling load calculations in new Article 120, energy management and power control systems in Article 130, GFCI, AFCI, and receptacle placement changes in Article 210, arc energy reduction in Article 240, and conductor sizing under Articles 250, 268, 270, and 310.

The course then addresses wiring methods and equipment, including the restructured Article 300 rules for securing, supporting, and physical protection, new Article 305 for systems over 1000 VAC and 1500 VDC, outlet box support, and the relocated receptacle and switch requirements in Article 406. Later lessons cover reconditioned equipment and busbars in Article 408, industrial control panel SCCR marking, luminaires, conductive pavement heating, EV charging equipment in Article 625, energy storage systems, emergency and standby systems, pools and hydromassage tubs, marinas, carnivals, and fire alarm wiring methods.

Learning objectives

• Identify changes to the NEC scope in Section 90.2 and to Article 110 requirements for fault current marking, arc-flash labels, and working space.
• Apply revised requirements for dwelling load calculations, energy management and power control systems, and GFCI and AFCI protection.
• Determine conductor, equipment grounding conductor, and grounding electrode conductor sizes using the relocated provisions in Articles 250, 268, 270, and 310.
• Locate relocated requirements for wiring methods, receptacles, switches, and EV charging equipment in Articles 300, 305, 406, and 625.

Disclosure of proprietary interest. No instructor, subject-matter expert or content author involved in developing or delivering this course holds any financial or ownership interest in any product, instrument, device or material referenced in it, and none receives any royalty, profit share or other consideration from the promotion or endorsement of any product. This course does not endorse any commercial product or service.