It just needs to be able to irradiate your eye. The NFPA 70E … Flash Protection Boundary (FPB) – the calculated safe working distance from electrical equipment which would not expose the employee to the hazards associated with an electrical arc flash. Weld inside a screened area to protect coworkers. What is the Safe distance From a Welding Arc Flash? The NFPA 70E shows an Arc Flash Boundary, which determines the distance from the equipment within which a person could receive a second-degree burn in the event of an arc flash. Arc welding can reach temperatures greater than 10,000 degrees F, posing a fire and explosion hazard. Arc Flash Boundary (ARC) – is the distance at which an electrical arc can flash outward, which may endanger employees working on electrical equipment. Portable screens, shields, and anti-flash goggles can also be used to protect visitors and coworkers. Arc flash incidents lead to over 2,000 hospitalizations. Same welding arc … when is it safe to look at a welding arc? Mar 27, 2019 | Accident & Incident Investigation, FAQ - Health and Safety, FAQ - Occupational Health, Health & Safety, Health Surveillance, Legislation, News, Occupational Health. You don’t even have to look at the arc to cause flash burn. Brief viewing of an arc, limited by natural aversion or the blink response, do not exceed personnel exposure limits for the retina. Visible light is on the low end of the spectrum ultraviolet is … Bringing light to the subject of Welding and the damage caused if eye protection isn’t used. In such a case, the Incident Energy value of an arc flash would be 1.2 cal/cm² for 1.0 second. And while second-degree burns are not desirable, they’re treatable, unlike third-degree burns that could be sustained by … Chapter 1 / 5 DID YOU KNOW? Arc Flash & Distance Question 01-07-2006, 02:44 PM At my day job, the welding guys do a really good job of keeping their arcs behind curtins, but every once and a while, from a distance you can see an arc flash and your eyes try to look in that direction - which of course I don't. Do not arc weld near flammables or combustibles. Staring at the arc should never be permitted without appropriate eye protection. An average hospital stay is 19 days, at approximately $18,000 per day.1. According to the Occupational Safety and Health Administration (OSHA), some facilities have been fined for over $500K for not being compliant with electrical safety regulations. With Mr. Lyon’s permission, we decided to … 6 CHAPTER 2 THE NFPA 70E STANDARD. Mr. Lyon published his work in an article in the AWS Welding Journal (December 2002). R.C I'd say your safe catching a flash from an arc about 50 feet or so,but you still can't sit there and look at it.LOL I'm just guessing on the distance,but going on experience. These are not safe viewing distances for viewing a bright light source. Electrical Assessment – an analytical evaluation which would … The arc flash boundary • The distance from the source of the arc flash blast where the incident energy equals 1.2 cal/cm2 • In order to protect workers, one would have to stand outside of this boundary or be dressed in personal protective equipment (PPE) that has a withstand rating exceeding the level of exposure at a given distance (usually a working distance of 18–24 inches) Worker wearing PPE … R.C By BankerQC Date 11-12-2002 16:15 All forms of light are part of the electromagnetic spectrum as are the gamma and x-rays used in industrial radiography. Just needs to be able to irradiate your eye look at a Welding arc to protect and... 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