Introduction
What This Guide Does Not Cover
1. Above 600 Volts
2. Utility Systems
3. Non-Electrical Hazards
Four Protective Strategies
Qualified Persons (Electrical Workers)
Protecting Others (That Is, Unqualified Persons)
NFPA 70E Requirements
Warning and Guarding
Maintenance and Housekeeping
Establishing an Electrically Safe Work Condition
Lockout-Tagout
Warnings
Six-Step Procedure for Establishing an Electrically Safe Work Condition
How to Read a Warning Label
Electrically Safe Work Condition Established
Test Meter Safety Ratings
Location Is Everything
Meter Marking and Accessories
Select the Proper Rating
Hazardous (Classified) Locations
Voltmeters
The Home Environment
Selection and Use
Duty Cycle
UL 1244 Requirements
Static Discharge Categories
Purchase
Inspection
Energy Control Procedures
Individual Qualified Employee Control
Simple Lockout-Tagout Procedure
Complex Lockout-Tagout Procedure
Safety Practices When One Conductor Is or Might Be Energized
Safe Electrical Work Practices
Energized Electrical Work Permit
Reasons That Justify Working With the Circuit/Equipment Energized
Additional or Increased Hazards
Design or Operational Limitations
The Difference Between
Inconvenient and
Infeasible The Task
The Best Solution
Acceptable Alternate Solution
Determine Shock Approach Boundaries
Limited Approach Boundary
Restricted Approach Boundary
Prohibited Approach Boundary
Not Flash Protection!
Arc-Flash Protection Boundary (Arc-Flash and Arc-Blast Protection)
Determining Available Fault Current
Determining the Hazard/Risk Category for the Task
Systems Rated at 600 Volts and Less
How to Determine the HRC Category for Each Work Task
Select the Appropriate PPE, Including FR Clothing
Advantages of Working Deenergized
Types of Protection
Gloves
Hazards
Size and Style
Leather Protectors
Selection and Use of Voltage-Rated Gloves
Inspection
Sleeves
Mats and Matting
How Mats and Matting Provide Protection
Blankets
Hazards
Footwear
Live-Line Tools (Hot Sticks)
Hazards
Selection and Use
FR Clothing
Label Requirements
Thermal Barrier
Selection and Use
Limiting Fault-Current Time
Protective Clothing Requirements
The Flash Protection Boundary
Other Exposure Considerations
Protective Characteristics
Testing Flame-Resistant Fabrics
Arc Rating
Insulating Factor of Layers
PPE Configurations
An Arcing Fault Converts Electrical Energy Into Other Forms of Energy
Clothing Designed Especially for Women
Protective Materials
Qualified Persons
General Electrical Equipment
Special Electrical Equipment
1. Electrolytic Cells (Article 310)
Heat Causes Special Hazards
Special Safety Techniques
2. Batteries and Battery Rooms (Article 320)
Safety Requirements
3. Lasers (Article 330)
4. Power Electronic Equipment (Article 340)
5. Research and Development Laboratories (Article 350)
Safety Techniques for Users
Who Enforces Compliance With
NFPA 70E?
How Is
NFPA 70E Related to the
National Electrical Code®?
Knowledge Is Critical
How Is
NFPA 70E Related to OSHA Regulations?
OSHA Involvement
NFPA 70E Enforcement
Who Is Responsible for Electrical Safety?
Who Is Responsible for PPE?
What Are Electrical Hazards?
Electric Shock Hazard
Ground-Fault Circuit Interrupter (GFCI) Protection
Insulated Gloves and Tools
Shock Approach Boundaries
Arc-Flash Hazard
Causes of Arc Flashes
Arc-Flash Protection Boundary
Arc Flash and Voltage Levels
Arc-Blast Hazard
Pressure Wave
Burn Dangers
Contact Hazards and Non-Contact Hazards
Contact Hazards (Shock and Electrocution)
Non-Contact Hazards (Arc Flash and Arc Blast)
Electrical Safety Program
Training Employees in Electrical Safety
Training Methods
On-the-Job Training
Toolbox Talks
OSHA 10-Hour Safety Course
OSHA 30-Hour Safety Course
NFPA 70E Safety Course
Job Briefing
Annex A - Referenced Publications
Annex B - Informational References
Annex C - Limits of Approach
Annex D - Sample Calculations for the Arc-Flash Protection Boundary
Annex E - Electrical Safety Program
Annex F - Hazard/Risk Evaluation Procedure
Annex G - Sample Lockout-Tagout Procedures
Annex H - Simplified Two-Category, FR Clothing System
Annex I - Job Briefing and Planning Checklist
Annex J - Energized Electrical Work Permit
Annex K - General Categories of Electrical Hazards
Annex L - Typical Application of Safeguards in the Cell Line Working Zone
Annex M - Layering of Protective Clothing and Total System Arc Rating
Annex N - Example Industrial Procedures and Policies for Working Near Overhead Lines and Equipment
Annex O - Safety-Related Design Requirements
Conclusion
Installations Covered by
NFPA 70E Covered
Installations Not Covered by
NFPA 70E Not Covered
NFPA 70E Definitions
General Protection From Electrical Injuries
Hard Hats
ANSI Z89.1 Requirements
OSHA Requirements
Selection and Use
Spectacles (Safety Glasses)
Face Shields and Viewing Windows
ANSI Z87.1 Requirements
ASTM F2178-02 Requirements
Voltage-Rated Hand Tools
ASTM F1505 Requirements
Safety Grounds (Clusters)
The Right-Hand Rule
Performance Requirements
First Aid
Scene Survey
How to Call for Help
Bleeding
Ingested Poisons
Recognizing Ingested Poisoning
Care for Ingested Poison
Shock
Recognizing Shock
Care for Shock
Burns
Care for Burns
Electrical Burns
Frostbite
Recognizing Frostbite
Care for Frostbite
Hypothermia
Recognizing Hypothermia
Care for Hypothermia
Heat Cramps
Recognizing Heat Cramps
Care for Heat Cramps
Heat Exhaustion
Recognizing Heat Exhaustion
Care for Heat Exhaustion
Heatstroke
Recognizing Heatstroke
Care for Heatstroke
Airway Obstruction
Management of Choking Responsive Victim
Adult Cardiopulmonary Resuscitation (CPR)
Heart Attack
Recognizing a Heart Attack
Care for a Heart Attack
Stroke
Recognizing a Stroke
Care for a Stroke
First Aid, Rescue, and CPR
References
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