High Voltage Operational Safety for Engineers and Technicians (OSHA, NFPA and EN Standards) Course
Electrical and Power Engineering
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High Voltage Operational Safety for Engineers and Technicians (OSHA, NFPA and EN Standards) Course
Course Overview:
This course covers in detail the electrical power system safety requirements with respect to hazard analysis, grounding systems, flashover mitigation and safety procedures.
Participants will be exposed to hands on practical aspects of the relevant NFPA 70E standards, risk management theory, and also safety application on electrical maintenance works.
Topics on maintaining Safety are also included which comprise of Protective strategies and measures, earthing methods, electrical safety equipment, lockout/tagout and maintenance safety measures.
This course is focused on Engineers, Technicians and Managers working in power generation, distribution and industrial plants and enables them to gain practical knowledge on how to comply with requirements set forth, eliminate risks and improve safety at the work place. Aspects of case studies and practical exercises are incorporated in the course program for hands-on experience.
Course Objectives:
- To present the recommended practices, and guides, of which NFPA 70E contained, which are developed through a consensus standards development process approved by the American National Standards Institute.
- To provide The Safety Standards
- To provide a practical understanding of electrical power system safety.
- To declare the regulatory and legal safety requirements
- To demonstrate the earthing systems Safety and Risk Assessment
- To explain the relationship between maintenance activities for various equipment and safety
- To select and maintain the electrical equipment in hazardous areas and it's standard
- To indicate arc flash hazard and mitigation
- To introduce main recommendations for electrical safety
- To review of general work and plant safety rules
Who Should Attend?
Electrical power generation systems and distribution engineers and technicians in utilities and industrial plants, managers of private electricity producers and large power consumers, substation engineers, consulting engineers, manufacturers of power equipment and technologists, and other technical personnel involved in the design, operation, and maintenance of high/medium/low voltage power systems.
Course Outlines:
Hazards of Electricity
- Hazard Analysis
- Shock
- Arc definition, description, and characteristics
- Arc Burns
- Blast
- Affected Body Parts (Skin, The Nervous System, Muscular System Heart, The Pulmonary System )
- Causes Injury and Death
- Shock Effect
- Arc Flash Effect
- Protective Strategies
Earthing Systems Safety And Risk Assessment
- Equipment Earthing
- Measuring earthing rods
- System Earthing
- Unearthed systems
- Solid earthing
- Resistance earthing
- Reactance earthing
Classification Of Supply / Installation System Earthing
Earthing Via Neutral Earthing Compensator
- Distribution transformers
- Zig Zag transformers
Comparison of Methods (Advantages/Disadvantages)
- Evaluation of earthing methods
Touch And Step Voltage
Effect of electric shock on human beings
Electric shock and sensitive earth leakage protection
Sensitive earth leakage protection
Risk assessment principals
How to assess the risks in your workplace?
How to conduct a risk assessment?
Risk assessment Job Briefing and Planning Checklist
Case Studies
Arc Flash Hazard Analysis And Mitigation
- A short history of arc flash research
- NPFA-70E-2004 application
- Calculating the Required Level of Arc Protection (Flash Hazard Calculations)
- The Lee Method
- Methods Outlined in NFPA 70E
- IEEE Standard Std 1584-2002 /
- Required PPE for Crossing the Flash Hazard Boundary
- A Simplified Approach to the Selection of Protective Clothing
Arc flash hazard assessment
Traditional methods for reducing arc flash
New strategies for reducing arc flash hazards and suggestions for Limiting Arc-flash and Shock Hazards
Standardizing Arc Flash Hazard Labels
The Role of Over-current Protective
- Devices In Electrical Safety
- Staged arc-flash tests
Electrical Safety Equipment
- General Inspection and Testing Requirements for Electrical Safety Equipment
- Flash and Thermal Protection (Clothing and materials)
- Head, Eye, and Hand Protection
- Rubber-Insulating Equipment (Gloves, Mats, Covers,….)
- Hot Sticks (description, application, testing)
- Insulated Tools
- Barriers and Signs
- Safety Tags, Locks, and Locking Devices
- Voltage-Measuring Instruments
- Proximity Testers
- Contact Testers
- Selecting Voltage-Measuring Instruments
- Instrument Condition
- Low Voltage Voltmeter Safety Standards
- Three-Step Voltage Measurement Process
- General Considerations for Low-Voltage Measuring Instruments
Safety Grounding Equipment
- The Need for Safety Grounding
- Safety Grounding Switches
- Safety Grounding Jumpers
- Selecting Safety Grounding Jumpers
- Installation and Location
Ground Fault Circuit Interrupters
- Operating Principles
- Applications
Safety Electrical One-Line Diagram
The Electrician’s Safety Kit
Safety Procedures and Methods
· The Six-Step Safety Method
· Pre-Job Briefings
· Energized or De-Energized?
· Safe Switching of Power Systems
- Remote Operation
- Operating Medium-Voltage Switchgear
- Operating Low-Voltage Switchgear
- Operating Molded-Case Breakers and Panelboards
- Operating Enclosed Switches and Disconnects
- Operating Open-Air Disconnects
- Operating Motor Starters
Energy Control Programs
- General Energy Control Programs
- Specific Energy Control Programs
- Basic Energy Control Rules
Definition and Description
- When to Use Locks and Tags
- Locks without Tags or Tags without Locks
- Rules for Using Locks and Tags
- Responsibilities of Employees
- Sequence
- Lock and Tag Application
- Isolation Verification
- Removal of Locks and Tags
- Safety Ground Application
- Control Transfer
- Nonemployees and Contractors
- Lockout-Tagout Training
- Procedural Reviews
Voltage-Measurement Techniques
- Purpose
- Instrument Selection
- Instrument Condition
- Three-Step Measurement Process
- What to Measure
- How to Measure
Placement of Safety Grounds
- Safety Grounding Principles
- Safety Grounding Location
- Application of Safety Grounds
- The Equi-potential Zone
- Removal of Safety Grounds
- Control of Safety Grounds
Flash Hazard Calculations and Approach Distances
- Approach Distance Definitions
- Determining Shock Hazard Approach Distances
- Calculating the Flash Hazard Minimum Approach Distance (Flash Protection Boundary)
Barriers and Warning Signs
- Illumination
- Conductive Clothing and Materials
- Confined Work Spaces
Tools and Test Equipment
- Authorized Users
- Visual Inspections
- Electrical Tests
- Wet and Hazardous Environments
Field Marking of Potential Hazards
The One-Minute Safety Audit
Safety-Related to Maintenance Requirements
General Maintenance Requirements
The Safety-Related Case for Electrical Maintenance
Relationship of Improperly Maintained Electrical Equipment to the Hazards of Electricity
Hazards Associated with Electrical Maintenance
The Economic Case for Electrical Maintenance
Reliability Centered Maintenance (RCM)
Impact of RCM on a Facilities Life Cycle
The Eight Step Maintenance Program
Frequency of Maintenance
Substations, Switchgear Assemblies,
Switchboards, Panel-boards, Motor Control
Centers, and Disconnect Switches
Premises Wiring
Controller Equipment
Fuses and Circuit Breakers
Rotating Equipment
Hazardous (Classified) Locations
Batteries and Battery Rooms
Portable Electric Tools and Equipment
Personal Safety and Protective Equipment
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