Arc Flash Risk Assessment - Overview of scope and different approaches in the US and in the EU

This paper gives the extensive overview about the Arc Flash Risk Assessment (AFRA) procedures and methodologies used in US and in EU environment. For both regions, the overview of related standards and guides is given. The main part of this paper describes the complete AFRA scope including arc flash risk identification, risk assessment (calculation) and risk control (mitigation). The AFRA flow chart is introduced to graphically present entire AFRA lifecycle with three possible approaches for AFRA execution (at present).