The National Electrical Code Style Manual has been in existence since 1969 and has been updated nine times since its inception. There was quite a bit of activity in the 2020 NEC® concerning definitions. In part one of this part-part, interactive online course we will cover new definitions added, and existing definitions that have been revised or relocated in the 2020 NEC®. We will also review new and revised requirements for equipment installation, labeling, marking and working space. 

Part two of this course covers the changes in Articles 411, 422, 424, 430, 440, 445, 450 and 480 of the National Electrical Code®. Article 411 contains the requirements for low voltage lighting. Article 422 covers appliances. Article 424 covers fixed electric space-heating equipment. Article 430 covers motors and their controllers. Article 314 covers air-conditioning and refrigeration equipment. Article 445 contains the requirements for generators. Article 450 covers transformers. Article 480 covers storage batteries. Notable changes include expanding the GFCI requirements for specific appliances, addressing new overload protection options for certain motors, new listing requirements for generators, and added disconnecting means requirements for generators and batteries.

By the end of this course, you will be able to:

·       Discuss new Part III of Article 100 Definitions

·       Describe the new definitions related to dormitory units, island mode, laundry area and reconditioned

·       Describe the revisions to existing definitions of accessible, available fault current, equipment grounding conductor, equipotential plane and labeled

·       Identify the revision at Section 110.5 Conductors related to copper clad aluminum, Section 110.14(D) Terminal Connection Torque, Section 110.22(A) Identification of Disconnecting Means, and Section 110.24(A) Field Marking Available Fault Current

·       Recognize the revisions to under 1000 volt working space requirements in Sections 110.26(A)(3), 110.26(C)(2) and 110.26(D) and to over 1000 volt working space requirements in Sections 110.31(A)(4) and 110.32

·       Discuss when an assembly of listed parts are allowed for low-voltage lighting.

·       Indicate when a thermostat can be used as a disconnecting means.

·       Define electronically protected.

·       Determine if a stationary generator should be listed or field labeled.

·       Recall the requirements of emergency shutdown devices for generators and battery systems at dwelling units.