2020 NEC® Changes: Conductors, Wiring Methods, and Enclosures

This interactive online course covers the changes in Articles 300, 310, 311, 312, and 314 of the National Electrical Code®. Article 300 contains general requirements for wiring methods. Article 310 covers conductors rated 2,000V and less. New Article 311 covers conductors rated more than 2,000V. Article 312 covers cabinets, cutout boxes, and meter socket enclosures. Article 314 covers outlet, device, pull, and junction boxes; conduit bodies; fittings; and handhole enclosures. Notable changes include clarifying which fittings may be concealed, harmonizing building code and electrical code rules for stair enclosures, a complete rewrite of Article 310, a new article 311, specific rules for cable trays and enclosures used together, and major changes for boxes in the ceilings of dwelling units.

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Course Details

Learning Objectives

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

  • Recall the rules for tapping parallel conductors
  • Identify which fittings are allowed for protecting conductors
  • Recall the rules for sealing raceways exposed to different temperatures
  • Identify which raceway fittings are allowed, and which types can be concealed
  • State the requirements for penetrating a stair enclosure
  • Explain why Article 310 was rewritten and explain the new requirements for Article 311
  • List the requirements for conductors entering enclosures from a cable tray
  • Discuss the rules for equipment in panelboard cabinets
  • Identify the new rules for box fill
  • Explain the rules for conduit pendants
  • Determine when ceiling fan boxes are required in dwelling units

Specs

Course Level Intermediate
Languages English
Compatibility Audio, Video, MobileReady

Ryan Jackson

Ryan Jackson is a combination inspector in the Salt Lake City, Utah, area. He began his career as a carpenter while in high school, and began doing electrical work at the age of 18. At the age of 23 Ryan landed his first job as an electrical inspector, and subsequently became certified in building, plumbing, and mechanical inspection, as well as building and electrical plan review. Two years after becoming an inspector, he was approached by a friend in the area asking him to fill in at an electrical seminar for him. After his first class he was hooked, and is now a highly sought after seminar instructor. Ryan has taught in several states, and loves helping people increase their understanding of the Code.

Course Applies To

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