Update on the 1993 National Electrical Code Book

The 1993 National Electrical Code Book received well over 1300 revisions and additions. Two new articles have been added: New Article 343 provides coverage of preassembled Cable in Nonmetallic Conduit; New Article 455 covers Phase Converters. Also, many articles have had major changes and revisions throughout the text. Sections, paragraphs, fine print notes, and exceptions have been moved and reorganized within the articles. Many paragraphs and exceptions have been deleted, reworked, or rewritten. The following synopsis is intended to summarize only the most significant additions and revisions within the 1993 National Electrical Code Book. The areas appearing in this synopsis were selected on the basis of their general interest, magnitude of change, and their overall impact to the electrical construction industry as determined by the author. In many cases, comment in the form of examples and applications of the additions and revisions is provided in order to provide a better understanding of the new rules and how they may affect the installation of new equipment, and workmanship in the future