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Home›Courses›Hazardous Materials & HAZWOPER›HAZWOPER Safety: Electrical Safety

HAZWOPER Safety: Electrical Safety

20 minutesEN / ESHazardous Materials & HAZWOPER29 CFR 1910.120 / 29 CFR 1910 Subpart S / NEC (NFPA 70)
Quick Answer

HAZWOPER Safety: Electrical Safety is a 20-minute online course that trains employees on electrical hazards and safety practices in HAZMAT environments, including NEC area classifications and OSHA requirements under 29 CFR 1910.120 and NFPA 70E. It is designed for workers in facilities where electricity is used near flammable gases, combustible dusts, or ignitable materials, and includes a downloadable certificate of completion.

Course Overview

Electricity in hazardous material environments poses risks far beyond standard electrical hazards. A single arc or spark in a Class I location with flammable gases can trigger an explosion. The National Electrical Code (NEC) divides HAZMAT locations into three classes based on the type of hazardous material present, and OSHA enforces electrical safety requirements through both the HAZWOPER standard (29 CFR 1910.120) and the electrical safety standards (29 CFR 1910 Subpart S). Violations of electrical safety standards carry penalties up to $16,550 per serious offense and $165,514 for willful or repeat violations.

This course trains your employees on the most common electrical hazards in HAZMAT environments, the injuries that can occur, and how to prevent them. Your team will learn about the three NEC hazardous area classes - Class I (flammable gases and vapors), Class II (combustible dusts), and Class III (ignitable fibers) - and the specific electrical safety measures required in each. The course covers proper grounding, equipment enclosure requirements, PPE for electrical work, and the development of a written electrical safety plan.

What You'll Learn

  • NEC hazardous area classifications: Class I (flammable gases), Class II (combustible dusts), Class III (ignitable fibers)
  • Electrical hazards specific to HAZMAT environments: arcs, sparks, static discharge, and thermal events
  • Grounding requirements and equipment enclosure standards for hazardous locations
  • PPE for electrical work in HAZMAT areas: rubber gloves, arc-rated clothing, eye protection
  • Written electrical safety plan requirements and the role of the electrical safety officer
  • NFPA 70E and OSHA 29 CFR 1910 Subpart S requirements for hazardous locations
  • Purging, inerting, and other engineering controls for reducing electrical ignition risks

Who Needs This Training

  • Electricians and maintenance workers in refineries, chemical plants, and paint shops
  • Process operators in facilities with flammable gas or combustible dust atmospheres
  • Safety officers responsible for electrical safety plans in HAZMAT environments
  • Workers in grain handling, woodworking, or textile facilities (Class II and III locations)
  • HAZWOPER site workers where electrical equipment operates near hazardous substances
  • Facility managers overseeing equipment classification in hazardous locations

Regulatory Background

Electrical safety in HAZMAT environments is governed by multiple overlapping standards. OSHA 29 CFR 1910 Subpart S covers general electrical safety requirements, while the HAZWOPER standard (29 CFR 1910.120) requires employers to address all site hazards - including electrical - in their Site Safety and Health Plan. The National Electrical Code (NEC/NFPA 70) classifies hazardous locations and specifies equipment requirements, and NFPA 70E establishes work practices for electrical safety. All electrical machinery in HAZMAT locations must be properly grounded, and equipment over 50 volts must be enclosed and clearly marked. OSHA penalties for electrical safety violations can reach $16,550 per serious offense and $165,514 for willful or repeat violations.

Frequently Asked Questions

Class I locations contain flammable gases or vapors in sufficient quantities to produce explosive atmospheres, such as refineries, paint spray booths, and gasoline storage areas. Class II locations contain combustible dust in concentrations that can ignite, such as grain elevators and coal handling facilities. Class III locations contain easily ignitable fibers or flyings, such as textile mills and woodworking shops, where the particles are not normally airborne.
Workers performing electrical tasks in HAZMAT areas should wear rubber insulating gloves rated for the voltage level, arc-rated clothing appropriate to the arc flash hazard, safety glasses or face shields, and non-sparking tools where flammable atmospheres exist. The specific PPE selection depends on both the electrical hazard level and the class of hazardous materials present. A written electrical safety plan should document the required PPE for each task.
The electrical safety officer is responsible for overseeing the written electrical safety plan, testing and evaluating electrical equipment for safe use in hazardous locations, ensuring proper classification of areas per NEC requirements, and verifying that workers are trained on the electrical hazards specific to their work areas. This person should have demonstrated knowledge of electrical systems and HAZMAT area classification.
Purging involves introducing clean air or an inert gas into an electrical enclosure to remove flammable gases or vapors before the equipment is energized. Inerting replaces the atmosphere inside an enclosure with a non-flammable gas such as nitrogen to prevent ignition. Both methods are engineering controls used to allow standard electrical equipment to operate safely in locations that would otherwise require explosion-proof equipment.
Yes. The course covers arc flash risks in hazardous locations, where an electrical arc can ignite flammable atmospheres in addition to causing burns and blast injuries. Workers learn about arc flash boundaries, required PPE, and the additional precautions needed when performing electrical work in NEC Class I, II, or III locations.

Related Courses

Employers training workers on electrical safety in HAZMAT environments often combine this course with HAZWOPER Fire Safety Training: Prevention and Response to address the fire risks that electrical faults can create, and HAZWOPER Safety: Administrative, Engineering Controls and Work Practices for the broader exposure control framework.

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$24.95
per person
Volume Pricing
Team Size Price per Person
1 - 9$24.95
10 - 24$19.95
25 - 49$17.95
50 - 99$17.50
Subtotal $24.95
Language

This course is available in English and Spanish at no additional charge.

Certificate of completion included. Downloadable upon passing the final assessment.

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$24.95
per person