Part I
Chapter 1 of the 2017 National Electrical Code (NEC) contains definitions and general requirements for electrical installations. Several definitions were added, revised or relocated in the 2017 NEC. New and revised requirements for equipment installation, labeling, certification and working space will also be discussed.
Part II
Chapter 3 of the 2017 National Electrical Code (NEC) contains requirements for wiring methods, enclosures and boxes. Several changes were made in Articles 312 and 314. In this interactive online course, we discuss notable changes that include the addition of a new column in Table 312.6(A), new box fill requirements for barriers in boxes, clarifying the rules for cables entering enclosures, and new rules for separable attachment fittings.
Part III
Chapter 3 of the 2017 National Electrical Code contains requirements for conductor sizing and wiring methods. Several changes were made in Article 310 and the articles covering cable and raceway wiring methods [320-399]. In this interactive, online course, we will discuss several changes in Chapter 3 including 310.15(A)(2) Selection of Ampacity, 310.15(B)(3)(c) Raceways and Cables Exposed to Sunlight on Rooftops, and 310.15(B)(7) Single-Phase Dwelling Unit and Feeder Service Conductors.
Part IV
Chapter 5 of the 2017 National Electrical Code (NEC) contains requirements for special occupancies. In this interactive online course, we will review several changes that were made in Articles 500 through 516 for hazardous locations. Notable changes include the relocation of fourteen definitions to Article 100, a surprising new allowance for wiring methods in Class I locations, underground wiring changes for commercial garages and fuel dispensing locations, and new fuel storage classification requirements.