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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Learning Objectives
- 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 |
Course Applies To
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