Integrated Arc Flash Software Suite

AC Arc Flash

ArcFault™ - High Voltage Arc Flash

DC Arc Flash

Arc Flash Safety Standards

Arc Flash Calculators

Arc Flash Mitigation Techniques

Hands-on Arc Flash Workshops

 Arc Flash Promo

All-in-one software solution to perform AC and DC arc flash analysis on LV, MV, and HV systems.


Safety & Protection Products

IEEE 1584-2018 Arc Flash Incident Engery Calculation Method

Arc Flash IEEE 1584 & NFPA 70E

Perform arc flash analysis and automatically evaluate incident energy and arc flash damage points at multiple locations. Learn more


NFPA 70E 2021 – Hazard Evaluation of Stored Capacitor Energy

This webinar provides a summary of the major changes to NFPA 70E 2021 and demonstrates how engineers can use ETAP 20.5 to evaluate the impact of connected and disconnected capacitor energy, calculate arc blast hazard related protection boundaries and how to print Capacitor Hazard Labels in compliance with NFPA 70E 2021. 

The specified form no longer exists or is currently unpublished.

Arc Flash Auto-Evaluation


ETAP Arc Flash Auto-Evaluation allows you to quickly evaluate arc flash incident energy with automated protective device coordination study to significantly reduce costly modifications and mitigation equipment. Learn more


DGUV-I 203-077 Arc Flash Calculations in ETAP


This webinar presents the European/German standard DGUV-I 203-077 for arc flash hazard calculations. This method, just like IEEE 1584-2018, is in use in many European countries. We will compare the German Arc Flash methodology to IEEE 1584-2018 and introduce ETAP tools available for Arc Flash calculations based on this standard. Application examples as well as features & capabilities will be presented. Learn more

High Voltage Arc Flash for T&D, Industrial and Renewable Systems

ArcFault™ - Recommended for 15 kV and above

Arc Flash analysis software recommended for electric power systems operating at 15 kV and above in compliance with OSHA’s requirements for electrical transmission, distribution, industrial and renewable energy systems. Learn more

High Voltage Arc Flash

  • OSHA 1910.269
  • National Electrical Safety Code - NESC
  • LG, LL, 3-Phase arc faults
  • Arc-in-a-box - 15 kV to 36 kV
  • Applicable for 1 kV to 800 kV

Direct Current Arc Flash Analysis

ETAP DC Arc Flash software calculates the incident energy for different types of direct current applications, including mission critical facilities, electrochemical plants, substation battery banks, photovoltaic plants, nuclear plants, and transportation systems. Learn more

DC Arc Flash Incident Energy Calculation

  • Incident energy & shock protection boundary calculations
  • Maximum Power, Stokes & Oppenlander, Paukert Methods
  • NFPA 70E 2018 Annex D.5.1 to D.5.3

Arc Flash Calculators

Arc Flash Calculators

Quick ‘What-if’ Scenarios & Instant Result Visualization

ETAP Arc Flash Calculators provide a powerful graphical tool for rapid assessment of multiples or batches of “what if” scenarios.

Graphical Arc Flash Calculators

  • IEEE 1584-2018 Std. Arc Flash Calculator
  • IEEE 1584-2002 Std. CL Fuse & Breaker Calculator
  • DC Arc Flash Calculator
  • High Voltage Arc Flash Calculator – OSHA, NESC
  • DGUV-I 203-077 (formerly BGI/GUV-I 5188E) German Std. Arc Flash Calculator
  • Capacitor Energy Hazard Evaluation

Arc Flash Mitigation Techniques

Zone Selective Interlock

Mitigation Techniques

Improve safety & minimize equipment damage by validating arc flash mitigation techniques.  Learn more

  • ZSI Zone Selective Interlocking - ZSI
  • Maintenance Mode Switch
  • Current limiting Fuses
  • Light & Pressure Sensors
  • Differential Protection
  • High Resistance Grounding

Arc Flash Trainings 

*Online event start time displayed in viewer's local time.

Additional Resources

High-Voltage Arc Flash for Overhead Conductor Systems

Arc flash analysis extends well beyond the scope of IEEE 1584 and NFPA 70E methodology for transmission, distribution and renewable energy systems. For many years, the industry has been lacking an “all-in-one” solution for performing arc flash analysis on DC, LV, MV and HV AC systems. ETAP ArcFault™ provides a validated method for performing arc fault simulations in T&D open-air overhead conductor systems plus it provides two methods to determine the incident energy for arc-flash in 3-phase enclosed equipment for 15 to 38 kV renewable energy collector systems. This presentation explains the background and methods for arc fault simulations and explains how ETAP ArcFault helps utilities comply with OSHA requirements to perform arc-flash analysis for systems voltage above 1.0 kV.

Generator Brush Collector Ring’s Arc Flash Hazard, A Safety Concern!

For some types of generator exciter systems, collector rings and brushes are used to provide energy from the exciter to the rotating field. The brushes wear down and constantly need to be replaced with the unit on-line and while brush/ring assembly is still energized, a risky and unsafe maintenance operation and may cause a serious harm. A potential shock and arc-flash hazard. This presentation addresses the important and dangerous maintenance of worn-down collector rings and brushes, electrical safety, lack of standards and guidelines, and a first possible calculation method.

AC and DC Arc Flash Methods for Renewable Energy Systems

This presentation will address the difficulties and lessons learnt on performing arc flash analysis using available methods (outside the voltage limits of IEEE 1584-2018 standard) on a 2.3 MW PV generation facility. The analysis includes system modeling, short-circuit, arc flash (both AC and DC) using various applicable calculation methods that best fit this application along with available tools in ETAP and generating worst-case arc flash deliverables.

Industrial Plant Electrical Risk Management Program

The Electrical Risk Management (ERM) group at FTI uses ETAP to provide short circuit, coordination, and arc flash studies as a part of building a safety program for industrial facilities around the US and Canada. This presentation will describe our approach to an overall safety program and the ways that a safety program encompasses more that just an engineering study. Some topics to be discussed are the need for maintenance personnel to understand the labeling, assessing the risk vs. just looking at the label, the choice between full coordination and arc flash hazard, field verification, and bolted fault current vs arcing fault current as it relates to equipment evaluation. We will look at the ETAP model of one of our industrial customers and discuss the benefits of using ETAP for our studies – reliability, adaptability to many systems by using configurations and scenarios, wizards, availability of DC and MV calculations, Star TCCs, ease of exporting reports to Excel, and solar and wind sources capability.

ETAP ArcSafety Solution Overview - A comprehensive suite of Arc Flash software analysis tools

Learn about ETAP ArcSafety, an all-in-one AC & DC arc flash solution for LV, MV & HV systems that improves safety, reduces risk, minimizes equipment damage, and validates mitigation techniques.

HV Arc Flash Studies for one of the Largest Utilities in South America

This presentation focuses on HV arc flash hazard analysis, as part of a multi-voltage AF study (115, 34.5, 13.8, and 0.22 kV) for one of the three largest utilities in South America with hydro and renewables generation and T&D. It demonstrates the versatility of the ETAP ArcFault™ to assist in the calculations and estimates of electric arc currents and incident energy level for HV substation equipment. The presentation discusses how ArcFault study results were used to select engineering and administrative control strategies, personal protective equipment (PPE), changes in protection schemes and adjustments to reduce electrical risks in operation & maintenance of electrical T&D systems.

AC Arc Flash using IEEE 1584 - University Campus Case Study

Since the release of IEEE 1584-2018, the industry has been challenged to reach a consensus on applying the new standard. The most significant application “pain” so far has been identifying actual equipment data for input to the study, including bus gap and electrode configurations in the equipment. A case study of an arc flash analysis for a large university campus with MV and LV power distribution equipment of different types, vintages, and manufacturers is presented. The presentation highlights selection of electrode configuration(s) for various equipment types and voltage levels and correct application of arc current and enclosure size correction factors to significantly reduce the data entry time and effort. The presentation will cover upcoming IEEE P1584.1 revisions to apply IEEE 1584 for arc-flash hazard calculations directly from the revision subgroup chair.

Data Center Power System Expansion: DC Arc Flash Case Study

Case study of a a power system study, which involved the replacement of an extensive UPS system at a data center. The studies included short-circuit, protective device coordination, and arc-flash hazard analysis for both the AC and DC systems consistent with the NFPA 70E 2018 and IEEE 1584 2018 Standards. The DC equipment as installed required mitigation efforts due to high incident energies. This presentation details the analysis, findings, and recommended mitigation for anyone embarking on similar retrofit or expansion studies.

ETAP DC 아크 플래시 세션 파트 1-3

해당 영상에서 논의할 주제는 아크, DC  고장해석 계산, 최대 전력 방법, 스트로크 및 오픈랜더 방법, Paukert 방법 및 이 방법들이 ETAP에서 활용되는 방법, 사고 에너지 계산, 구성 방법 입니다. ETAP 11.1은 개방형 또는 폐쇄형  공간 기기 및 결과 해석기를 다루고 있는지의 여부를 결정합니다.
ETAP Arc Flash

아크 플래시

Introduction to ETAP Arc Flash, analysis module. Learn how to get started with Arc Flash.

High Voltage Arc Flash Assessment and Applications

Two-part technical article published by the InterNational Electrical Testing Association (NETA) in NetaWorld, co-authored by Albert Marroquin, VP of V&V at ETAP.