Course Duration: 1 Day
Course Description:
Our one-day CSA Z462 course is designed for front-line workers who are responsible for electrical systems and needing certification in the CSA Z462-12 electrical safety standard which comes into effect in 2012. This standard covers safe work practices related to electrical dangers in the workplace. The successful participant will gain a solid understanding of hazards encountered while operating or maintaining electrical installations in the low voltage (below 750V) class including a full understanding of the arc hazard categorization, appropriate PPE selection and safe work procedure.
This one-day training course is designed to assist organizations to identify shock and arc flash hazards and prevent injuries and incidents associated with those hazards.
THIS COURSE WILL TEACH YOU HOW TO:
Identify electrical safety training requirements for qualified workers
Identify best practice Regulations that address shock and arc flash hazards
List the steps to perform a shock hazard analysis and describe each step
Define the three CSA Z462 shock protection boundaries and describe their use
List the personal protective equipment required for shock protection
List the steps to achieve an electrically safe work condition
List the steps to install and remove temporary protective grounding equipment
Explain what an arc flash is and the injuries that can result
Identify when an arc flash hazard exists
List the steps to perform an arc flash hazard analysis and describe each step
Define the term “incident energy,” identify the key electrical system variables that affect it
Define the term “arc flash protection boundary” and explain its application
Define the term “arc-rated” and explain the difference between “flame-resistant” clothing and “arc rated” clothing
Select appropriate personal protective equipment for arc flash hazards
Describe the Hazard/Risk Category method of selecting arc flash PPE
List the testing and maintenance requirements for personal protective equipment
Identify the key objectives of job safety planning
Who Should Attend:
This forum is ideal for:
Industrial, Commercial, Institutional Electrical Engineering and Maintenance Personel
Electrical personnel who work on or near energized and de-energized electrical equipment
Electrical Safety Managers and Safety Professionals
Course Agenda
UNDERSTANDING ELECTRIC POWER SYSTEMS
Basic Electrical Theory and Definitions
Electrical Drawings
Ground Fault Systems
Time-Current Curves & Power System Studies
Electrical Arc Characteristics
RECOGNIZING ELECTRICAL SAFETY HAZARDS
A detailed review of critical electrical safety hazards created by energized electrical equipment:
Insulation
Power Cables
Power Transformers
Instrument Transformers
Dealing With Fault Currents
Disconnect Switches
Switchgear
Circuit Breakers
Fuses
Electrical Relays
Motor Starters
AC/DC Motors
Capacitors
Emergency UPS Systems
PREPARING TO WORK SAFELY
Hazard Risk Analysis/ Task Assesment
Annex F Hazard/ Risk Evaluation/ Assessment
Assessment to Lockout or Work Energized
Overview of Lockout Fundamentals and CSA Z460
Working Energized defined
Annex I Job Briefing and Planning Checklist
Energized Electrical Work Permit Flow Chart- Annex J2
Elements of an Energized Electrical Work Permit and preparing for- Annex J1
ELECTRICAL HAZARDS
Electrical Shock
Effects of current on human beings based on IEC 60479-1
shock Hazard Analysis- Table 1
Shock Protection Boundaries
Approach to Energized electrical conductors or circuit parts operating at 50 Volts or more
Arc Flash/ Arc Blast
Elements and characteristics of an Arc Flash Event
Arc Flash Hazard Analysis
Arc Flash Protection Boundary for voltages between 50 and 600 Volts
ESTABLISHING AN ELECTRICALLY SAFE WORK CONDITION
The most effective way to prevent electrical injury is to completely remove the source of supply. This section will discuss the methods and process of achieving an electrically safe work condition. Including the following:
Working On or Near De-energized Electrical conductors or Circuit Parts That Have Lockout Devices Applied
Principles of Lockout Tagout Execution
a. Employee Involvement
b. Training
c. Plan
d. Control of Energy
e. Identification
f. Voltage
g. Coordination
Responsibility
Procedures
Form of Control
Audit Procedures
Hazardous Electrical Energy Control Procedures
a. Individual Qualified Employee Control Procedure
b. Simple Lockout Tagout Procedure
c. Complex Lockout Tagout Procedure
d. Coordination
e. Training and Retraining
Equipment
a. Lock Application
b. Lockout Tagout Device
c. Lock out Device
d. Tagout Device
e. Electrical Circuit Interlocks
f. Control Devices
g. Procedures
h. Planning
DETERMINING SAFE APPROACH DISTANCE
Determining Safe Approach Distance
Definitions of Boundaries and Spaces
Limits of Approach
Shock Hazard Analysis
Shock Protection Boundaries
Understanding and Applying CSA Z462 Tables
Limited Approach Boundary
Restricted Approach Boundary
Prohibited Approach Boundary
Hazard Boundary
SHOCK HAZARD ASSESSMENT (UTILIZING TABLE METHOD IN CSA Z462)
Annex C – Limits of Approach
Preparation for Approach
Qualified Persons, Safe Approach Distance
Basis for Distance Values in Table 1 – Approach Boundaries to Energized
Electrical Conductors or Circuit Parts for Shock Protection
Specific Distance Columns in Table 1
BASIC METHOD FOR DETERMINING ARC FLASH HAZARD ASSESSMENT
Breakdown and characteristics of the 5 Hazard Risk Categories
Selection of Personal Protective Equipment for Various Tasks
Table 4 – Hazard/ Risk Category Classification
Table 5 Protective Clothing and Personal Protective Equipment (PPE)
Table 6 Protective Clothing Characteristics
Factors in selection of Protective Clothing and Equipment
Annex H Simplified- Two Category, Flame Resistant (FR) Clothing System
Annex M Layering Protective Clothing and Total System Arc Rating
Annex N – Arc Rating, Arc Thermal Performance Value (ATPV) and Breakopen Threshold Energy (EBT)
Brief overview of applicable ASTM standards for Protective Clothing and PPE- Tables 2 and 3
CSA Z462 Annex B – Safety-related Electrical Maintenance
Introduction
Risk Categories and Maintenance Justification
Reliability Centered Maintenance (RCM)
Frequency of Maintenance Tests
Maintaining Electrical Drawings
Maintenance Standards
CSA Z462 Annex Q – Electrical Hazard Labels, Arc Flash and Shock Labelling
General
Canadian Electrical Code Rule 2-306 Shock and Arc Flash Warning Label
Arc Flash Label Example
Detailed Arc Flash Hazard Analysis Label
NEW ANNEX: Substation Systems and Equipment
Annex R, Substation Systems and Equipment, provides recommendations for the safe execution of work on or around high-voltage substations. Many large industrial facilities and non-utility generators own, maintain, and operate high-voltage substations that are the facility connection point to the local electrical grid.
NEW ANNEX: Prevention of Shock Injuries from Electrostatic Discharges
Annex S, Prevention of Shock Injuries from Electrostatic Discharges, describes workplace scenarios, such as high-speed network operations, in which potential for shock injury from electrostatic discharge exists. This Annex identifies methods to prevent, control, and protect personnel from injury.
NEW: DC Safety-related Work Practices
The 2nd edition of Z462 has considerably more information on safety-related practices relating to work on and around DC systems. A new Shock Protection Boundary Table for DC systems and an arc flash energy calculation method for DC systems have been added. Extensive revisions have been made to deal with safety-related practices for batteries, battery rooms and battery enclosures. Both high value for anyone working on or around DC equipment. This new additional information is essential for working on DC systems.
ARC FLASH SOLUTIONS
Arc Flash Study Analysis and Implementation
Power System Upgrades
Arc Resistant Switchgear
Circuit Breaker Retrofitting
Remote Breaker Racking
Regular Maintenance and Testing
CSA Z462 PPE CLOTHING REQUIREMENTS, FR CLOTHING TESTING STANDARDS, HOW TO ESTABLISH A PPE PROGRAM IN YOUR COMPANY
The evolution of Flame Resistant (FR) fabrics
The various types of FR fabrics that are available in the marketplace
The problems with off shore FR fabrics
FR fabrics and the effects of undergarments
Review the technology and effectiveness of inherently flame resistant fibers vs chemically treated fabrics
Developing a PPE Program in Your Company
Assessing the correct Arc Flash hazard and choosing the right level of protective clothing
Company training and worker compliance
Documentation