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Based on: NFPA 70E® “Standard for Electrical Safety in the Workplace” Industry best practices

Languages: Available in 2 languages

Sample Transcript

In energized equipment, electric current travels at a very controlled, precise path. There are conditions that can cause electricity to divert from its normal path and travel through the air. This release of energy instantly super heats the air and any nearby components, causing an explosion. This chain of events is known as an arc flash. Lightning is an example of a naturally occurring arc flash. Similar to lightning, arc flashes in the workplace occur suddenly and violently, with no warning.

Arc Flash Safety

Training Time: 32 minutes

An arc flash is a type of electrical explosion. It’s a serious hazard when working on or near energized electrical equipment. OSHA requires that all employees understand the electrical hazards to which they are exposed. This course introduces the dangers of arc flash and presents common methods for preventing and protecting against those dangers. It’s based primarily on the National Fire Protection Association (NFPA) 70E® “Standard for Electrical Safety in the Workplace,” which is the recognized industry resource in the United States for best electrical work practices.

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Expertly Designed For Maximum Retention
Multiple Language Support
SCORM/AICC Compliant eLearning Modules
Training Content + Interactive Quizzes

Accolades

“The Arc Flash Safety training is clear and concise. Our maintenance department was attentive throughout the course. It's a great educational tool!”- Rich R. - Kansas City, MO

electrician flipping circuit breaker

Only qualified electricians should work with circuit breakers

arc flashing over distance

Arc flash can be hazardous even from long distances

arc flash hazard labels on circuit breakers

Electricity presents arc flash hazards

Learning Objectives

  • Define arc flash
  • List the dangers of an arc flash
  • Identify common causes of an arc flash and ways to reduce the risks
  • Describe the basis for determining an arc flash boundary
  • List NFPA arc flash personal protective equipment (PPE) categories
  • Describe arc flash PPE guidelines
  • List requirements for arc flash warning signs and labels
  • List common de-energizing procedures
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FAQs

What standards and regulations govern arc flash?
See NFPA 70E and OSHA’s 1910.333. They're both covered in this arc flash safety video.

Is arc flash the same as electrical shock?
No. Electric shock comes from direct contact with an electric current. Arc flash, on the other hand, results when electrical current leaves its normal path and travels through the air.

Do I have to be touching an electrified object to be harmed by an arc flash?
No, you don’t. You can be injured while more than 20 feet away.

What hazards might an arc flash create?
Extremely high temperatures, explosions, blinding light, secondary explosions, and more.

What hazards might an arc flash create?
Extremely high temperatures, explosions, blinding light, secondary explosions, and more.

What are some causes of arc flash?
Damaged electrical insulation; damaged electrical equipment; and impurities, dust, debris, and even animals or insects contacting electrical components.

In addition to the causes above, are there human causes of arc flash too?
Yes. People can contribute to or cause an arc flash by contacting a live electrical part, using unsafe or inappropriate tools, using tools in an unsafe manner, dropping tools, ignoring warning signs and labels, and ignoring lockout/tagout procedures.

What are the hazard risk categories?
A way to categorize the risk of arc flash danger at a specific distance from energizing equipment (from 0 to 4). The hazard risk category can be used to determine the proper PPE for a job.

What is Arc Thermal Performance Value (ATPV)?
A rating method used to determine the amount incident energy that arc flash clothing and PPE can withstand.

What are electrical equipment boundaries?
Zones that mark different levels of danger around live electrical equipment. These zones are the Prohibited Approach Boundary, the Restricted Approach Boundary, the Limited Approach Boundary, and the Flash Protection Boundary.

What should maintenance workers do to prevent the risk of arc flash?
Follow de-energizing procedures, lockout/tagout procedures, and all other safe work practices.

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