This 2 minute safety training video covers: What is arc flash, how man made arc flashes happens, situations that causes arc flash, hazards of arc flash, how to prevent arc flash, what is Arc Blast, how arc blast happens and hazards of an arc blast.
This clip was taken from a full-length training video. Click here to watch the 16 minute full length version.
The Full-Length Version is Available on DVD!
Atlantic Training's new training on Arc Flash focuses on what arc flash is, its hazards and how employees can avoid it on the job. The program provides practical procedures employees can use to protect themselves from electric shock, as well..
Although arc hazards have existed since we first started using electricity, increasing deaths, injuries and property loss from arcing faults have led to increased study into the causes, effects and methods of protection. New electrical standard most notably the Fire Protection Association or NFPA 70E are the principal regulations to establish minimum requirements for improving electrical safety. OSHA has adopted this regulations and they apply to every worker that may approach or be exposed to electrical energy. When electric current flows between two or more separated energized conducting surfaces an arc occurs. Some arcs are intentional such as arc welding or they maybe accidental caused by a tool touching the prong to a wrong surface. One common cause of arc is insulation failure, temperatures at the arc terminals can reach or exceed 35,000F or four times the temperature of the sun's surface. The heat energy and intense light of the point of the arc is turned arc flash. Air surrounding the arc is instantly heated and conductors are vaporized causing a pressure wave turned arc flash. Its more like an explosion. Anything that produces electrical current has the potential to produce an arc even a 12V battery. However, in electrical industry arc flash is describe as the sudden release of large amount of heat and light energy at the point of the fault. People have been seriously injured even when 10 feet or more from the arc center. If there are nearby flammable materials this can be ignited resulting in secondary fires that can destroy entire facilities. The arc blast often causes equipment to literally explode thereby ejecting metal parts, insulating materials and supporting structures with life threatening force.