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Arc Flash Risk Hazard Assessment & Labeling

based on NFPA 70E®, IEEE 1584 and Industry Best Practices

Trust the Company that has done more than 1,000 Arc Flash Risk Assessments

The Martin Technical Arc Flash Risk Assessment, Labeling, and Safety Program is one of the most comprehensive in the industry. Since 2006 our team has conducted thousands of arc flash risk assessments throughout the world for customers ranging from large manufacturing plants to companies with over 150 locations. Our combination of experience, quality, and dependability have made Martin Technical one of the premier and most trusted names in arc flash study and electrical safety.  We don’t cut corners, and we put safety first!

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Arc Flash Risk Assessment & Labeling Program


  1. Determine if the potential for a hazardous electrical arc flash exists in equipment that employees work on or near while the equipment is exposed and energized.
  2. Identify opportunities to reduce or eliminate as many of the potential arc flash hazards identified in the study as possible.
  3. Determine the minimum safe working distance from the equipment where an arc flash hazard exists.
  4. Determine the appropriate PPE (Personal Protection Equipment) required to avoid a permanent injury from an arc flash.
  5. Implement arc flash hazard and electrical shock warning labels on electrical equipment.
  6. Inform management and workers of the results


arc flash hazard risk assessment study

  1. Updated One-Line Electrical Drawings
  2. Arc Flash Risk Assessment
  3. Short Circuit Study
  4. Protective Device Coordination Study
  5. Recommendations to Reduce Arc Flash Hazard Levels
  6. Arc Flash Labels & Labeling
  7. Help with OSHA & Arc Flash NFPA 70E compliance

Work Process

Phase I – Data Collection
The first phase is the collection of field data necessary to calculate potential incident energy at power distribution equipment. Phase I can be the labor-intensive phase of the arc flash hazard study taking more than half of the total effort required to complete the analysis. Data is collected on-site by qualified persons (as defined by OSHA and NFPA 70E) in appropriate PPE; preferably assisted by a qualified facility employee or someone knowledgeable of the plant electrical equipment and facility layout.

Data collected for the study includes transformer nameplates, conductor sizes/number per phase/lengths, motors larger than 50HP, circuit breaker catalog numbers and settings, fuse catalog numbers, and on-site generator nameplates. Generally, all the data can be collected without disturbing facility operations. Proper labeling of each disconnect as to its purpose (in accordance with NEC® 110.22), is required in order to complete an accurate analysis.

Generally as part of Phase I, the electric utility will be contacted to determine the short circuit current available at the facility’s metering point.

Phase II – Power System Modeling / Electrical One-Line Diagram Development
Using the information from the Data Collection, a power system an electrical one-line diagram is developed. Electrical elements and components are shown by standard industry-accepted symbols representing each of the three phases and the connection of the power system with one line. The diagram represents the actual facility power distribution system and path from the incoming power source to all loads and equipment.

Phase III – Engineering Calculations & Arc Flash  Analysis / Study
This phase is completed and/or reviewed by a licensed professional electrical engineer knowledgeable in the use of electrical engineering software, IEEE 1584 and NFPA 70E.  ETAP or SKM software is used to determine the following:

  1. Short Circuit Study
  2. Device Interrupt Rating and Evaluation Study
  3. Arc Flash Hazard Study Analysis
  4. Recommended Solutions to Problems and Identify Opportunities
  5. Written Analysis Report

Phase IV – Report Presentation
Phase IV includes delivery of the arc flash report and a brief presentation of the results of the engineering studies completed including recommended solutions for improving the electrical distribution system.

This report is accompanied by program-specific electrical one-line diagrams developed during the modeling of the system.

Phase V – Arc Flash Labels & Label Application

Each piece of equipment analyzed will have a printed label compliant with NFPA 70E, NFPA 70 / NEC.  Labels include both arc flash and shock hazard assessment and warning to meet NFPA requirements.  Labels are applied in the field by the Martin Technical technicians.

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Electrical Safety and Arc Flash Training (Optional)

No program is complete without training to understand the results of your study and how to apply them when working on electrical equipment. Martin Technical offers several electrical safety and arc flash training programs to meet your needs.

Find out why Martin Technical is the most trusted name for Arc Flash Risk Assessments

One of our electrical safety consultants can evaluate your needs today.
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