Completely revised to align with the 2023 NEC, McGraw Hill's National Electrical Code' 2023 Handbook, 31st Edition offers concise explanations, advice, and analysis for all the current provisions, in-depth coverage of the background and rationale for specific rules enhances your understanding of both meaning and application. This practical resource features over 1,000 figures, photos, and examples. Designed to be used as a companion guide to the 2023 NEC itself, this on-the-job reference is arranged in code order, so the explanation for any topic lines up exactly with the applicable section in the code. You will gain access to straightforward, ready-to-apply code clarification, enabling them to work efficiently and safely and achieve full compliance. Detailed Analysis of Revised Code Approaches to Medium Voltage Installations Many code articles have been reorganized, renumbered, or completely divided in order to clarify coverages of medium voltage topics, and this book fully tracks all of them. Moe Logical Coverage of Definitions That Only Apply Within a Single Article All definitions have been relocated to Article 100, regardless of limits to applicability. This book locates coverage of such definitions to within the discussion of the applicable article. This arrangement saves the user time because Article 100 now occupies over 36 pages, and the key words chosen by NFPA to place these definitions are not always intuitively sensible.

The Best Ampacity Analysis in the Industry The most important single word in the NEC is one that does not exist in dictionaries of the English language. The term "ampacity" was invented in the 1965 NEC, and its proper application is absolutely essential to safe and adequate electrical design. By providing over 20 pages of detailed analysis, this book provides the best coverage of these topics in the industry.