ARTICLE 409. INDUSTRIAL CONTROL PANELS


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ARTICLE 409. INDUSTRIAL CONTROL PANELS
ARTICLE 409. INDUSTRIAL CONTROL PANELS409.1. Scope. This new article covers industrial control panels, and these rules significantly impact how these panels are assembled, and by whom. Refer to the definition in Art. 100. Most of the article provisions duplicate other NEC rules and are covered elsewhere, primarily in Art. 430. The coverage here focuses on provisions that are unique. The terminology is consistent with that used by testing labs, such as UL, and covered by NEMA/UL Standards 508 and 508A.409.20. Conductor—Minimum Size and Ampacity. The wording here mimics the wording of other Code rules that govern the minimum size and ampacity for fe…
Citation
Frederic P. Hartwell; Joseph F. McPartland; Brian J. McPartland: McGraw-Hill's National Electrical Code 2017 Handbook, 29th Edition. ARTICLE 409. INDUSTRIAL CONTROL PANELS, Chapter (McGraw-Hill Professional, 2017), AccessEngineering Export