Analysis of Changes, NEC Code Updates Analysis of Changes View the most significant changes to the NEC.

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Written by industry-expert representatives to the NEC® Code-Making Panels, IAEI’s Analysis of Changes details the most significant changes to the National Electrical Code (NEC) with four-color drawings and informational text to help you visualize Code revisions. Discussing Code rules with customers, employees, and contractors is now faster than ever with this informative document.

Analysis of Changes, NEC 2020

Learn the most essential changes to the 2020 NFPA 70 National Electrical Code (NEC)®. Don’t let a change in code catch you unaware! Written by our industry experts from the International Office of IAEI with input from our IAEI representatives who sit on the NEC® code-making panels and reviewed by the NFPA, this comprehensive book is a must-have resource you will reference throughout the years. It highlights and explains revisions to residential, commercial, and industrial design and installation requirements and covers four new code articles and significant changes to a variety of requirements.

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Analysis of Changes, NEC 2017

This edition covers 255 reported changes. Five new articles include: Energy Storage Systems, Article 706; Large-Scale PV Electric Power Production, Article 691; Stand-Alone Systems, Article 710; Direct-Current Microgrids, Article 712; and Fixed Industrial Process Heating, Article 425. Five improvements to the NEC® include Single-Phase Dwelling Services & Feeders, 310.15(B)(7); GFCI Protection for Non-Dwelling Units, 210.8(B); Reconditioned Equipment, ID & Traceability, 110.21(A)(2); Short-Circuit Current Documentation, 9 locations throughout; and Limited Access Working Space Requirement, 110.26(A)(4).

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Analysis of Changes, NEC 2014

2014 Analysis of Changes

This edition covers over 200 reported changes. Four new articles headline emerging electrical issues in the NEC-2014 code:

  • Article 393. Low-Voltage Suspended Ceiling Power Distribution Systems;.
  • Article 646. Modular Data Centers contain fully customizable and scalable equipment to provide data center operations that, typically, are not permanently installed;
  • Article 728. Fire-Resistive Cable Systems must be installed in accordance with very specific materials, supports, and requirements and are critical for the survivability of life safety circuits; and 
  • Article 750. Energy Management Systems provide general requirements and address the types of loads permitted to be controlled through energy management.

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