Frederic P. Hartwell - McGraw-Hill’s National Electrical Code® 2020 Handbook, Thirtieth Edition

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Frederic P. Hartwellis a working electrician, is President of Hartwell Electrical Services, Inc., and has been certified by the International Association of Electrical Inspectors as a Certified Master Electrical Inspector. He is the senior member of NEC CMP 9. He is coauthor of McGraw-Hills American Electricians Handbook, 17th Edition.

The 30th edition of McGraw Hills National Electrical Code Handbookhas been thoroughly revised to reflect the changes given in the 2020 National Electrical Code. This is a reference book of commentary, discussion, and analysis on the most commonly encountered rules of the 2020 National Electrical Code. Designed to be used in conjunction with the 2020 NE Code book published by the National Fire Protection Association, this Handbook presents thousands of illustrationsdiagrams and photosto supplement the detailed text in explaining and clarifying NEC regulations.