ARTICLE 727. INSTRUMENTATION TRAY CABLE: TYPE ITC


Please sign in to view the rest of this entry.

ARTICLE 727. INSTRUMENTATION TRAY CABLE: TYPE ITC
ARTICLE 727. INSTRUMENTATION TRAY CABLE: TYPE ITC727.1. Scope.‚ÄÉThis is a specialized cable used for control circuit applications, particularly in industrial occupancies. It is limited to 150 V and 5 A. It uses power levels that are in a range between Class 3 and Class 1, and was originally conceived as a fourth class of wiring within Art. 725. That proved too complicated, and in the 1996 NEC it entered as a stand-alone article for what is in effect a power-limited Class 1 control cable with power limitations even more severe than the ones in 725.41(A). It originated as a work-around for control circuiting limitations for power-limited circuits in Art. 725 that were unacceptable, particularly in indus…
Citation
Frederic P. Hartwell; Joseph F. McPartland; Brian J. McPartland: McGraw-Hill's National Electrical Code 2017 Handbook, 29th Edition. ARTICLE 727. INSTRUMENTATION TRAY CABLE: TYPE ITC, Chapter (McGraw-Hill Professional, 2017), AccessEngineering Export