Summary
This document is a case study that presents a comparison of AC arc flash results against hand calculations based on DGUV Information 203-077. It outlines the methodology used to compare results from ETAP Electrical Arc Energy calculations with those derived from hand calculations. The case study includes a detailed description of the low voltage distribution system analyzed, including its rated capacity and protective measures. The results section provides a comparison of various parameters such as electrical arc energy, short circuit power, and electric arc power, highlighting the differences between ETAP results and hand calculations. The maximum deviation observed in the results is approximately 0.65%, attributed to the accuracy of significant figures in ETAP. Additionally, the document discusses two scenarios for arc flash calculations, detailing the expected values for arc energy and power under different conditions. The findings are supported by tables that summarize the results for clarity.
