Course description
In Revisions for the 2014 National Electrical Code - Part 2, you'll learn ...
- The "need to know" changes in the 2014 National Electrical Code
- Changes to the 2014 National Electrical Code
- New requirements for grounding, bonding, cable supports, cable trays, conductor sizing, receptacles and wiring methods
Overview
Credit: 4 PDH
Length: 46 pages
This course is Part 2 of a 3-Part Series intended to familiarize the reader with the major changes contained in the 2014 National Electrical Code®. These are the "need to know" changes. The document is heavily illustrated to enable effective and efficient visual learning. The course addresses Code revisions that apply to all types of occupancies: residential, commercial, and industrial. The 3 parts of the Course Series are:
- Part 1: Code-wide changes through Article 240
- Part 2: Article 250 through Article 424
- Part 3: Article 445 through Informative Annex J
The layout and the method of this presentation will enable new Code users to easily navigate through the changes. Those well experienced in the Code will find depth in the coverage.
Through the heading(s) at the beginning of each Code change addressed in the document, the reader will readily identify the section affected by the change and the specific subject being discussed. The Significance section serves as an introduction to the Code change under discussion. An Analysis of the Code change follows, with explanation where necessary to help the student understand the revision, its background, and the logic of the change. Graphics, photographs, examples, or calculations are used to illustrate the change and to enhance learning.
The Summary is a brief re-instatement of the highlights of the Code change. An Application Question, with Answer and key to the correct answer, is included at the end of each Code section studied for exercise in applying the change and to broaden learning. Many of the sections analyzed contain a Code Refresher that addresses existing Code requirements related to the change. The author attempts to tie the entire NEC® together through the study of the changes, Code Refreshers, Technical Updates, Examples, and Application Questions.
Although there are many references to the 2014 NEC throughout this document, the course and quiz can be completed without the need to refer to the NEC itself. However, the learning experience will be enhanced by referring to the NEC as the course is completed. For further study on any Code section within this course, the 2014 NEC should be consulted.
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Certificate of Completion
You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 25 questions. PDH credits are not awarded until the course is completed and quiz is passed.
Training content
This course teaches the following specific knowledge and skills:
- Significant changes in the 2014 edition of NFPA 70®, the National Electrical Code
- Requirements for installing grounding electrode conductors and grounding electrode bonding jumpers underground
- Clarify the meaning of "sole connection" to a grounding electrode
- Requirements for bonding an available concrete-encased electrode to the grounding electrode system
- The new table in NEC for sizing supply-side bonding jumpers and certain grounded conductors
- An additional method for providing an equipment grounding conductor to enhance the safety of older ungrounded wiring
- Ground-fault detection systems for ungrounded dc systems
- New requirements for grounding of systems and circuits above 1,000 volts
- New requirements for cable ties and other nonmetallic cable accessories used for securing and supporting cables installed in air-handling spaces
- Revision of the methods for determining reduced conductor sizes for services, feeders, and branch circuits where a low demand factor or diversified load existed
- Additional permission for unsupported Type MC cable when flexibility is required to minimize transmission of vibration from equipment
- Clarification of the 30 conductor threshold for metal wireways
- Wiring methods permitted in cable trays
- Cable tray marking requirements
- Updated rules for installation of low-voltage suspended ceiling power distribution systems and equipment
- Five additional exceptions for providing a neutral conductor at a switch used for the control of lighting
- Markings on receptacles that are energized and de-energized automatically in conjunction with energy management or building automation
- Requirements for "extra-duty" outlet box hoods in wet locations
- The use of dimmers for the control of receptacles used for lighting
- Wire-bending space for conductors entering the back of an enclosure
- A significant change in the NEC regarding AFCI protection when replacing old receptacles
- Access to, and working space about, electric duct heaters installed in a space above a ceiling
- Enable the student to identify Code sections where additional study may be appropriate for the student's practice
- Re-acquaint students who use the Code infrequently with some of the basic safety requirements and areas of coverage of the NEC
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