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NFPA 70E:2021



A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard for Electrical Safety in the Workplace

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Chapter 1 Safety-Related Work Practices 100 Definitions 105 Application of Safety-Related Work Practices and Procedures 110 General Requirements for Electrical Safety-Related Work Practices 120 Establishing an Electrically Safe Work Condition 130 Work Involving Electrical Hazards Chapter 2 Safety-Related Maintenance Requirements 200 Introduction 205 General Maintenance Requirements 210 Substations, Switchgear Assemblies, Switchboards, Panelboards, Motor Control Centers, and Disconnect Switches 215 Premises Wiring 220 Controller Equipment 225 Fuses and Circuit Breakers 230 Rotating Equipment 235 Hazardous (Classified) Locations 240 Batteries and Battery Rooms 245 Portable Electric Tools and Equipment 250 Personal Safety and Protective Equipment Chapter 3 Safety Requirements for Special Equipment 300 Introduction 310 Safety-Related Work Practices for Electrolytic Cells 320 Safety Requirements Related to Batteries and Battery Rooms 330 Safety-Related Work Practices:Lasers 340 Safety-Related Work Practices: Power Electronic Equipment 350 Safety-Related Work Requirements: Research and Development Laboratories 360 Safety-Related Requirements for Capacitors Informative Annex A Informative Publications Informative Annex B Reserved Informative Annex C Limits of Approach Informative Annex D Incident Energy and Arc Flash Boundary Calculation Methods Informative Annex E Electrical Safety Program Informative Annex F Risk Assessment and Risk Control Informative Annex G Sample Lockout/Tagout Program Informative Annex H Guidance on Selection of Protective Clothing and Other Personal Protective Equipment (PPE) Informative Annex I Job Briefing and Job Safety Planning Checklist Informative Annex J Energized Electrical Work Permit Informative Annex K General Categories of Electrical Hazards Informative Annex L Typical Application of Safeguards in the Cell Line Working Zone Informative Annex M Layering of Protective Clothing and Total System Arc Rating Informative Annex N Example Industrial Procedures and Policies for Working Near Overhead Electrical Lines and Equipment Informative Annex O Safety-Related Design Requirements Informative Annex P Aligning Implementation of This Standard with Occupational Health and Safety Management Standards Informative Annex Q Human Performance and Workplace Electrical Safety Informative Annex R Working with Capacitors

This standard addresses electrical safety-related work practices, safety-related maintenance requirements, and other administrative controls for employee workplaces that are necessary for the practical safeguarding of employees relative to the hazards associated with electrical energy during activities such as the installation, inspection, operation, maintenance, and demolition of electric conductors, electric equipment, signaling and communications conductors and equipment, and raceways.

National Fire Protection Association

NFPA 820:2024 Standard for Fire Protection in Wastewater Treatment and Collection Facilities
ANSI/NETA MTS:2023 Standard for Maintenance Testing Specifications for Electrical Power Equipment and Systems
PIP ELCGL01:2023 Electrical Design Criteria
API RP 500:2023 Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and Division 2

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