It has seen significant changes in its most recent version published in 2018 compared to that of the previous version. IEEE 1584 is used (together with the Lee method for systems above 15000 Volts) as the guiding principle for calculating and determining arc flash hazards. The sections below cover the inception of IEEE 1584 all the way to the present version of the standard. IEEE 1584 was created by the IEEE Industry Applications Society and has seen some changes in recent years. The Lee method was used for every voltage level until the first version of IEEE 1584 was published. The Lee method uses a distance energy relationship to try and characterize the arc flash hazard. Up to that point, it was recognized that electrical arcs and shocks were hazardous, but no attempt was made at modelling the arc. Initial Arc Flash Analysis was initially quantified by Ralph Lee through the Lee method. These critical pieces of information, along with shock hazard, are commonly printed on warning labels to clearly identify dangers with target equipment which allow any operator/employee to adequately dress in appropriate PPE. The arc flash boundary determines the circular boundary around a piece of equipment where a person can still receive third-degree burns. Incident energy is used to calculate the potential hazard of an arc flash which helps determine the type of Personal Protective Equipment (PPE) a person should wear when performing work near the piece of equipment. However, the primary driver behind the arc flash calculation is to determines to determine: It has faced numerous challenges relating to accurately modelling incident arc flash explosions but has come a long way from its original inception. The idea behind this article is to explain in layman terms:įREE DOWNLOAD: ARC FLASH TRAINING A PRACTICAL GUIDE Īrc Flash is an ever-evolving industry that has not fully reached its maturity in contrast to other electrical principles. Ever wondered why your arc flash values are higher than previously calculated and wonder why that has occurred? Then this guide is for you! This article is intended to inform about the arc flash value changes, whose calculation method and accuracy has changed significantly since the inception of the IEEE Guide for Performing Arc-Flash Hazard Calculations which is known as Institute of Electrical and Electronics Engineers standard 1584 or IEEE 1584 for short.
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