Update on the 1993 National Electrical Code Book

Proceedings of IEEE Technical Conference on Rubber and Plastics Industry Pub Date : 1994-04-26 DOI:10.1109/RAPCON.1994.337333

J. Pool

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Abstract

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.<>

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1993年国家电气规范书的更新

1993年的《国家电气规范书》进行了1300多次修订和补充。增加了两条新条款:新的第343条规定了非金属管道中预组装电缆的覆盖范围;新的第455条涵盖了相位转换器。此外，许多文章在整个文本中都有重大的变化和修订。章节、段落、小字注释和例外在文章中被移动和重新组织。许多段落和例外都被删除、修改或重写。以下摘要旨在总结1993年国家电气规范书中最重要的补充和修订。本摘要中出现的领域是根据作者确定的它们的一般兴趣、变化幅度和对电气建筑行业的总体影响来选择的。在许多情况下，为了更好地理解新规则，以及它们如何影响未来新设备的安装和工艺，以示例和添加和修订的应用形式提供评论

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Proceedings of IEEE Technical Conference on Rubber and Plastics Industry

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