2026 NEC · Module 2
Services, Service Equipment & Separately Derived Systems
Load Knowledge / Load Calculations · Fault Current · Electrical Service Equipment · Temporary Wiring · Electrical Grounding and Bonding · Transformers
8lessons · ~69 min
200questions
13%of the exam
01Service Fundamentals: One Service per Building, the Disconnect, and the 2026 Outdoor Rule8 min · public preview02Dwelling Load Calculations in the 2026 NEC — Article 120 Standard and Optional Methods9 min · public preview03Grounding at the Service: Electrodes, the Grounding Electrode Conductor, and the Main Bonding Jumper10 min · public preview04Service Load Calculations — Worked Examples (Article 120 Parts III–IV, 310.12, 230.42, Table 250.66, 450.5)10 min · public preview05Fault Current: Available Fault Current, Interrupting Ratings, SCCR, Series Ratings and the 110.24 Label8 min · public preview06Temporary Installations — Article 590 (2026 Renumbered): Time Limits, Wiring Methods, GFCI and the Assured Grounding Program7 min · public preview07Separately Derived Systems and Transformer Secondaries — Worked Examples (250.30, Table 250.102(C)(1), Table 250.66, 250.104(D), 240.21(C), Table 450.5(B), 450.6)9 min · public preview08Service Conductors and Service Equipment in Detail: Clearances (230.24), Underground (230.30–230.33), Service-Entrance Conductors (230.40–230.54), Equipment Rules (230.62–230.82) and Service Overcurrent Protection (230.90–230.94)8 min · public preview
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