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Fault Current Calculations and NEC Requirements

2013 Eaton. All rights reserved. Fault Current Calculations and NEC Requirements Dan Neeser Field Application Engineer Cell: (314) 753-2514 2 2013 Eaton. All rights reserved. Question??? How many attendees have had a customer designing or owning a commercial or industrial facility ask for the Fault Current provided by the utility? Why are they asking this question and what answer do you provide? 3 2013 Eaton. All rights reserved. Answer Depends on Concern Proper Application of Equipment Interrupting Rating Short-Circuit Current Ratings Meeting Requirements of Selective Coordination Arc Flash Protection of Employees 4 2013 Eaton. All rights reserved. OCPD - Interrupting Rating ( ) NEC Article 100 Definition Highest Current an overcurrent DEVICE (fuse or circuit breaker) is rated to safely interrupt. Self protection rating only NEC Interrupting Rating.

Selecting Protective Devices Handbook (SPD) • This comprehensive guide to electrical overcurrent protection and electrical design considerations is based on the 2014 NEC®. • With over 250 pages, this industry-leading handbook has new or expanded information on the following: • OCPD servicing and maintenance • Industrial control panels

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Applying the National Electrical Code to Substations

www.cce.umn.edu

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Power Factor Insulation Diagnosis - University of Minnesota

www.cce.umn.edu

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m.littelfuse.com

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www.nfpa.org

T Edition ARTICLE XIV. Special Provisions for Electric-Discharge Lighting Systems of More Than 1000 Volts..... 70–270 XV. Lighting Track..... 70–271 XVI. Decorative Lighting and Similar

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