KTR can assist your company in becoming OSHA compliant by following the recognized Standard in Electrical Safety: NFPA 70E. Follow the three phases listed below. KTR can assist in all three phases of your project.

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Phase I: Engineering Assessment

Site Assessment (Data Gathering)

  • Develop Single Line Diagrams
  • Transformer Data (KVA, Voltages, Impedance)
  • Conductor Sizes and Lengths
  • Relay, Fuse and Circuit Breaker Information
  • Electric Utility – Available Fault Current
  • Info needed to complete an Arc Flash Study

Short-Circuit Analysis

  • Determines maximum fault currents
  • Required for Protective Device Coordination Study
  • Required for Arc Flash Study
  • Required for Interrupting Rating Analysis

Protection Device Coordination Study

  • Determines proper circuit breakers and fuses clear each fault on system
  • Determines “Clearing Time” for arc fault currents required for Arc Flash Analysis

Interrupting Rating Analysis

  • Determine if protective devices have adequate interrupting capacity for the available short-circuit current

Arc-Flash Hazard Analysis

  • Calculate Incident Energy
  • Determine Hazard/Risk Category
  • Specify PPE Requirements

Recommend Solutions to Problems

  • Breaker Coordination Problems
  • Inadequate Interrupting Ratings
  • Potentially Dangerous Arc Flash Energy
  • Opportunities to Reduce Hazard/Risk Category Level

Phase II: OSHA Required Documentation

Electrical Safety Program

  • Determine Policies on Electrically Safe Work Conditions
  • Develop an Electrically Energized Work Permit
  • Determine who can reset Circuit Breakers
  • Establish PPE Requirements Inside Approach Boundaries
  • Determine PPE Clothing Policy

Procure Appropriate PPE

  • Flame-Resistant Clothing Based on Hazard/Risk categories
  • Voltage Rated Gloves
  • Voltage Rated Tools

Warning Labels

Phase III: Training Workforce


  • Provide training for Qualified Employees on hazard recognition and electrical safe work practices
  • Provide real world examples
  • Provide training for all unqualified employees, supervisors, and safety personnel on understanding the hazards