Combined LV and HV Electrical Safety Training - USA (NFPA 70E)

Why U.S. Employers Need LV and HV Safety Training

OSHA requires employers to train workers who face electrical hazards. For general industry, that requirement is in 29 CFR 1910 Subpart S. For electric power generation, transmission and distribution work, it is in 1910.269. NFPA 70E is the consensus standard OSHA relies on to define safe work practices, and it is the benchmark used to judge whether an employer has protected its workers.

Most arc flash training stops at 600 volts. This course also prepares workers for the medium- and high-voltage equipment found in plants, campuses, utilities and substations, where the hazards and work procedures are different.

Day One – Low Voltage Arc Flash and Shock Safety (NFPA 70E 2027)

• Shock, arc flash and arc blast hazards and injuries
• NFPA 70E, OSHA and IEEE 1584 requirements
• Shock protection boundaries and voltage-rated gloves and tools
• Arc flash boundaries and incident energy
• Risk assessment: table method vs. incident energy analysis
• Arc-rated PPE selection, categories and care
• Job briefings and energized electrical work permits
• Lockout/tagout and establishing an electrically safe work condition
• Arc flash equipment labeling

Day Two – Medium and High Voltage Electrical Safety

• Hazards of switchgear, breakers, transformers, instrument transformers and capacitors
• Hierarchy of controls: engineering, administrative and PPE
• Reading single-line diagrams and writing safe switching sequences
• Isolation, lockout and person-in-charge responsibilities
• Temporary protective grounding, step and touch potential
• Minimum approach distances for HV equipment
• HV test equipment and insulated aerial devices
• Substation safety and work involving multiple authorities

Learning Outcomes

• Recognize LV, MV and HV hazards and the conditions that cause shock and arc flash injuries
• Apply NFPA 70E risk assessment, approach boundaries and PPE selection
• Establish an electrically safe work condition through lockout and verification
• Develop and validate switching sequences from single-line diagrams
• Install and maintain temporary protective grounds
• Meet NFPA 70E and OSHA electrical safety training requirements

Frequently Asked Questions

Is NFPA 70E training required by OSHA?

OSHA does not adopt NFPA 70E word for word. However, OSHA requires electrical safety training under 1910 Subpart S and 1910.269 and uses NFPA 70E to define how employers meet those requirements.

Does this course cover the 2027 edition of NFPA 70E?

Yes. Day One is based on the 2027 edition.

Who needs LV and HV electrical safety training?

Anyone who operates, maintains or works near electrical equipment above 600 V, and low-voltage workers whose tasks expose them to arc flash or shock hazards.

What do I receive?

A certificate of completion, 1.2 CEUs, a 100-page electrical safety handbook and the course presentations in PDF.

Related Safety Training Courses

• NFPA 70e Arc Flash Training

• High Voltage Safety Training

• OSHA Lockout Tagout Training

• OSHA Electrical Safety Compliance

• Electrical Safety for Non-Electrical Workers

• Electrical Safety Training for EHS Managers

• Electrical Safety Program Development