Electrical System Safety: Hazards and Safeguards
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Electrical System Safety: Hazards and Safeguards Course
Introduction:
This course provides comprehensive coverage of the knowledge and skills necessary for working safely with energized high-voltage and high-energy electric power systems. It focuses on the principles and procedures required for the safe operation and maintenance of high-voltage systems.
Throughout the course, emphasis is placed on the use of insulated hand tools, "hot-sticks," proper grounding procedures, appropriate protective clothing, and meticulous job-planning procedures. The course delves into essential concepts such as the properties of electric charge, energy, electric potential, dielectric stress, capacitive and inductive coupling, and material behavior in electromagnetic fields.
It also addresses the effects of electrical energy on humans and explores various protection concepts, including basic first-aid practices. The technical and practical aspects of differential protection schemes, insulation materials, Faraday cages, equipotential grounding, live-line tools, and isolation techniques are thoroughly covered in the course.
Course Objectives:
By the end of the training, participants will be able to:
- Explain the electrical safety standards and regulations including voltages
- Understand the hazards of electricity at the power system supply level
- Review the principles, governmental regulations, work practices, and specialized equipment relating to electrical safety
Who Should Attend?
This course is valuable for those Industrial and commercial electrical maintenance personnel, engineers, supervisors, and safety personnel who work on or near energized and de-energized electrical equipment and systems, and other personnel classified as "Qualified".
Course Outlines:
Understand the Law and Regulations Applying for Electrical Work
- Occupational Health & Safety Act
- Electrical Utility Safety Association
- Internal Safety Rules & Regulations
Power System Hazards
Power System Faults
Facts and Figures:
- Major Causes: Act of God, Human or Operator Error, Equipment Breakdown
- Short Circuits
- Overloads
- Fires
- Electrocution
- Important Definitions
- Short Circuit Analysis
- Flash Hazard Analysis
- Incident Energy and Flash Barrier Distances
Understand When the use and How to Select the Proper Personal Protective Equipment
- Introduction
- Personal Body Protective Equipment
- Testing and Grounding
- Live Line Tools
- Glasses
- Gloves & Rubber Equipment
- Clothes
- Boots
- Head Protection
Temporary Grounding
- Introduction
- Purpose
- Work Methods
Hazards of Isolated Equipment
- Induction
- Accidental Energization
- Wind
- Lightning
- Grounding Equipment for Overhead Lines - General
- Adequate Capacitance Clamps
- Adequate Capacity Cables
- Overhead Grounding Sets
- Installation of Temporary Grounds
Potential Indicating Devices
- Introduction
- Purpose
- Potential Indicators: Volt Meters, Clip-on Ammeter, Clip-on Watt Meter, Phase Rotator, Preparation of Temporary
- Grounding
Isolation and Switching Procedures
- Introduction
- Self-Protection
- Work Protection Guarantees
- Work Permit
- Work and Test Permit
Switching Practices
Lockout Procedures
- Individual Lockout
- Lock Box Method
- Sign-In Method
- Removal of a Personal Safety Lock
Understand the Risks around Energized Equipment
- Ground Grid, Step & Touch Potentials
- Equipment Failure
Understand Your System, Know Your System
- Single Line Diagram
- Maintain Good System Nomenclature
- Protection & Control System
- Equipment Types & Operation
- Maintenance Records
Develop a Job Specific Safety Plan
- Hazard Assessments
- Switching Plans