Title :
Introduction to arc flash
Author :
Lang, M. ; Neal, T. ; Wilkins, R.
Author_Institution :
Ferraz Shawmut, Newburyport
Abstract :
Arc flash hazard calculations used to predict the magnitude of the heat hazard are based on tests with open-tip vertical electrodes in enclosures. Arc ratings for PPE are developed using opposing electrodes. Tests with electrode configurations that forced the arc plasma jets outward from the box yielded significantly higher heat energy measurements. When placed within this directional plasma flow, protective flame resistant (FR) fabrics yielded significantly lower arc ratings.
Keywords :
arcs (electric); electrodes; energy measurement; fabrics; plasma jets; arc flash hazard calculations; arc plasma jets; directional plasma flow; heat energy measurements; heat hazard; magnitude prediction; open-tip vertical electrodes; protective flame resistant fabrics; Chaos; Conductors; Electrodes; Hazards; Heat transfer; Plasma materials processing; Plasma properties; Plasma temperature; Protection; Testing; ATPV; arc flash hazard; arc rating; current limitation; current-limiting fuses; electric fuse;
Conference_Titel :
Electric Fuses and their Applications, 2007. ICEFA 2007. 8th International Conference on
Conference_Location :
Clermont-Ferrand
Print_ISBN :
978-2-84516-363-8
DOI :
10.1109/ICEFA.2007.4419984
