Arc Flash Application, Mitigation and Electrical Safety

After participating in this course, you will be able to:

• Identify electrical hazards
• Determine causes of arc flash
• Explain the biological effects of electrical shock/arc flash
• Select appropriate personal protective equipment (PPE) for applicable situations
• Become knowledgeable about the hazards and risks associated with arc flash
• Demonstrate safe work practices

Description
Electrical power is a dangerous force that requires proper understanding in the workplace. This course will teach you to assess arc flash hazards and act to mitigate them by selecting appropriate PPE and determining protection boundaries using the new IEEE 1584-2018. You will also learn how to use the new CSA Z462 and the calculation methods to determine protection boundaries.

This course also provides some of the key requirements necessary to become a “qualified” person as defined in CSA-Z462®, such as Determining minimum approach distances, being capable of using special precautionary techniques, PPE, insulating and shielding materials, and insulated tools, and receiving safety training to recognize and avoid hazards

Who Should Attend
Electrical Engineers • Design Engineers • Electrical Engineering Managers • Project Managers • EHS Specialists • Maintenance Managers • Consultants • Technologists responsible for the Design, Construction, Installation, Inspection, Operation or Maintenance of Electrical Systems

OVERVIEW
Electrical Power System overview
Short Circuit Analysis
Protective Devices Coordination and Time Current Curves (TCCs)

Electrical Hazards

• Define Electrical Safety-related terms
• Identify leading causes of Electrical Accidents
• Solve basic electrical problems using Ohms’ law
• Explain the effects of current on the body
• Identify Arc Flash and Arc-Blast hazards

Existing Electrical Safety Standards

• CSA Z462-2024
• IEEE 1584-2018

ARC FLASH CIRCUIT DYNAMICS

• Arcing Faults vs. Bolted Faults
• Effect of Current on Overcurrent Device Clearing Time
• Time Current Curves
• Short Circuit Current
• Current Limitation
• Effect of Transformer Size and Source Strength

CSA Z462-24 REQUIREMENTS

• Shock and Arc Flash Hazard Analysis
• Creating Energized Work Permits
• Electrically Safe Working Conditions

Personal Protective Equipment

• PPE based on electrical safety standards
• Select the PPE based on a Hazard/Risk Category identified in CSA Z462-24 Tables

Determining Safe Approach Distance

• Definitions of Boundaries
• Limits of Approach
• Shock Hazard Analysis
• Shock Protection Boundaries
• Understanding and Applying CSA Z462 Tables
• Limited Approach Boundary
• Restricted Approach Boundary
• Arc Flash Boundary Calculation
• Determining Hazard Risk Category

Arc Flash Hazard Analysis

• Comparing IEEE 1584 versions (2002 versus 2018)
• Steps to perform arc flash analysis using the new IEEE 1584 standard
• Using calculated incident energy to determine PPE requirements
• Comparing calculations to CSA Z462 Tables
• Simplifying the PPE Selection
• List the contents contained on an Arc Flash Label.

DC ARC FLASH CALCULATIONS

• V-I Characteristics
• DC Arc Resistance Calculations
• DC Incident Energy Calculations

Practical Solution to Reducing Arc Flash

• Power System Upgrades
• Arc Resistant Switchgear
• Circuit Breaker Retrofitting
• Remote Breaker Racking
• Regular Maintenance and Testing

Case Study Using Computer Analysis Software