Arc Flash Assessment

Standard for Electrical Safety in the Workplace NFPA 70E 2018

Below are the maximum penalty amounts, with the annual adjustment for inflation, that may be assessed after Jan. 15, 2022.

Type of ViolationPenalty
Posting Requirements
$14,502 per Violation
Failure to Abate$14,502 per day beyond the abatement date
Willful or Repeated$145,027 per violation


Due to the alarming rate of workers injured due to Electrical Hazards in the workplace, OSHA has responded by coordinating with NFPA and ANSI to create a safety standard, which has not been implemented into law, as of yet, but they are using the “GENERAL DUTY CLAUSE”, which essentially states, you have a General Duty to ensure that your employees have a safe work environment in which to work”.

OSHA has increased the violation fines and violation citations; so 1 incident may have 5 event violations or more, ie…no hot permit, no proper PPE, no properly trained personnel, no proper labeling, no proper one line, no proper arc flash assessment.

At Terrell Electric, we perform an Arc Flash Assessment. We create an updated one line. We provide you with a digital and printed copy of your customized safety package, this includes a section to be incorporated into your safety manual making your safety manual compliant with current standards. We create and place your custom labels to optimize your employee’s safety.

Terrell Electric’s comprehensive safety program includes the following: An Updated/Accurate One-Line Diagram, an Updated Short Circuit Protective Device Study and Arc Flash Hazard Risk Assessment, Warning Labels Indicating Hazards for ALL EQUIPMENT, Proper Safety Training Concerning Arc Flash, Proper PPE Training, Job Procedure and Briefings, Lock Out/Tag Out Procedures, Trained Qualified Person, Temporary Grounding, Safety Procedure Manual, Scheduled Maintenance and Equipment Cleaning, Work on Energized bus as Last Resort, Hot Work Permits, PPE Constitutes the Last Line of Defense, Hierarchy of Risk Control Methods, Hazard-Risk Assessment, Closed Loop Follow Up.

Terrell Electric, LLC is a Service-Disabled Veteran-Owned Small Business committed to electrical safety, compliance, and maintenance standards, after all the loss of 1 life from unsafe conditions, is 1 life too many.

A company performed an Arc Flash Assessment, labeled equipment, determined and purchased proper PPE, and trained all workers.

Assessment Predicted the Following

  • 38,900 Amps Bolted Fault Current
  • 24,200 Amps Arcing Fault Current
  • Primary fuse opens in 0.8 seconds
  • Incident Energy (IE) of 88 cal/cm2 at 18 inch work distance

Data From Incident Report

28 inches measured distance, worker to arc estimated Incident Energy of 50 cal/cm2 because of training, warning labels, and PPE. Electricians wore 100 cal flash suits.

Result of Injuries

Worker 1: First Aid Case, minor 1st Degree burn from loose face shield;

Worker 2: Not injured. This was work done on a graveyard shift.

The Take Away

A lost workday case was prevented. Workers used PPE during off shifts. Hazard Analysis and PPE costs were small compared to the possible cost of injury. An Arc Flash Hazard Assessment can make a difference.

Annual Statistics

  • 30,000 Arc Flash Incidents per year
  • 7,000 Burn Injuries per year
  • 2,000 Hospitalizations per year
  • 400 Fatalities per year
  • 80% of Electrical Worker fatalities are due to burn, not shock.