![]() ![]() Best practices related to worker safety are also covered, especially as they pertain to electrical codes and standards, particularly Institute of Electrical and Electronics Engineers (IEEE) 1584 and National Fire Protection Agency (NFPA) 70E. Mitigation strategies are also discussed related to engineering design and employment of protective devices including arc-fault circuit interrupters (AFCIs). This primer also covers pressure waves and EMI arc-fault hazard analyses related to incident energy prediction and potential damage analysis. This arc-fault primer provides basic fundamental insight into arc-fault plasma discharges, and an overview of direct current (DC) and alternating current (AC) arc-fault phenomena. Strong pressure waves, electromagnetic interference (EMI), and intense light from an arc pose a threat to electrical worker safety and system equipment. This facilitates a reduction in more » electrical resistance as the arc temperature and pressure can increase rapidly. Arc-flash events rapidly release significant energy in a localized volume, where the electric arc experiences a reduction in resistance. These may lead to discontinuity between energized conductors, facilitating arcing events and fires. Arc-plasma discharges arise over time due to a variety of reliability issues related to cable material degradation, electrical and mechanical stresses or acute conductive wiring dislocations. While arc-faults are rare in electrical installations, many documented events have led to fires that resulted in significant damage to energy-generation, commercial and residential systems, as well as surrounding structures, in both the United States and abroad. ![]() This article provides guidance for electrode configuration selection and a sensitivity analysis for determining a reasonable engineering margin when actual dimension is not available. Using HCB as the worst-case scenario to determine the personal protection requirements may not be the best practice in all circumstances. According to the newly published model for IE estimation, the IE between vertical conductors inside a metal box (VCB) and horizontal conductors inside a metal box (HCB) can differ by a factor of two with other parameter constants. This article explains the fundamental theory on the selection of electrode configurations and performs more » sensitivity analysis of the enclosure dimension that have been introduced in the IEEE Std. The sensitivity and effect changes of other parameters have been discussed in the previous literatures. The parameters in the updated estimation models include electrode configuration, open circuit voltage, bolted fault current, arc duration, gap width, working distance, and enclosure dimension. 1584-2018 has added parameters for more accurate arc flash incident energy (IE), arcing current, and protection boundary estimation. The focus of this webinar is on major changes to the standard and their implementation in EasyPower.= ,Īrc flash hazard prediction methods have become more sophisticated because the knowledge about arc flash phenomenon has advanced since the publication of IEEE Std. ![]() ![]() Following publication, this second edition of the widely adopted industry standard includes an entirely new arc flash model with revised procedures and calculations to predict arc flash hazard levels. This webinar, given by Greg Pagello at EasyPower, is an introduction to changes in the new IEEE 1584-2018 Guide for Performing Arc Flash Hazard Calculations recently, approved by the IEEE Standards Association. Webinar Video - IEEE 1584-2018 Update – An Introduction to the Changes EasyPower information page on IEEE 1584-2018 update.Get the latest arc flash hazard resources from EasyPower, IEEE, and NFPA : Try a free demo copy today and experience the fastest, easiest to use arc flash analysis on the market. You can also contact us if you have questions, to get a quote, or would like to schedule a one-on-one session with an application engineer, to help understand how EasyPower can be an integral part of your arc flash safety program.ĭownload Demo Request a Quote Stay Up-to-Date By clicking on the Calculate Arc Flash button, you agree to waive all claims against EasyPower LLC, or it's employees, and release them from all liability arising from use of the calculator. Used to calculate arc flash values for personal protection. * NOTE: This is a demonstration tool only and is not meant to be ![]()
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