Technical Articles

Brainfiller Library

U.K. Article – Arc Flash – Not Just an Electrocution Hazard – Part 3

Arc Flash – The need for risk assessment is embodied in European Law through directive 89/391 and is transposed into UK Law through Management of Health and Safety at Work Regulations. Most people are familiar with the general principles of prevention as laid down in these documents and in other UK regulations. They say that “Where an employer implements any preventative measures, he shall do so on the basis of the principles of prevention” shown below. The authors discuss how

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U.K. Article – Arc Flash – Not Just an Electrocution Hazard – Part 2

Arc Flash – Working safely in accordance with the requirements of the Electricity at Work Regulations 1989 is about decision making. This includes the decision to work live in the first place through risk assessment. One of the factors that would need to be taken into account in deciding whether live proximity work could proceed is stated in the memorandum of guidance to the EAW Regulations “the level of risk involved in working live and the effectiveness of the precautions

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U.K. Article – Arc Flash – Not Just an Electrocution Hazard – Part 1

Arc Flash Hazard – Working safely in accordance with the requirements of the Electricity at Work Regulations 1989 is about decision making. This includes the decision to work live in the first place through risk assessment. One of the factors that would need to be taken into account in deciding whether live proximity work could proceed is stated in the memorandum of guidance to the EAW Regulations “the level of risk involved in working live and the effectiveness of the

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How Did We Get Here? The History of Electrical Safety

It seems like the more you attempt to learn about arc flash and electrical safety, the more confusing it becomes. A mixture of letters such as OSHA, NFPA 70E, NEC, IEEE 1584, ASTM F1506 seem to be the secret language used by the electrical safety industry. Who created this alphabet soup of standards, and how did we get here?

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How to Perform an Arc Flash Study in 12 Steps – Part 2 of 3

Arc Flash – This is the second article in a three part series about how to perform an arc flash study that was published in the October 2007 Edition of NFPA’s NECDigest Magazine. The series breaks the arc flash study process down into individual steps. How to Perform an Arc Flash Study – Part 2 of 3

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Three – Two – One – Liftoff! Behind the Scenes at the Kennedy Space Center

Like many kids growing up in the 1960’s, I was obsessed with America’s space program. I would watch launches and ultimately the moon landing on television, build and fly model rockets and dream about what it would be like to be out in space. Earlier this year, I had the opportunity to go behind the scenes at the Kennedy Space Center (KSC) in Florida and actually see what it takes to make it all happen. I was given access to

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Behind the Scenes – Ethanol Production

Recently, I had the opportunity to go behind the scenes of an ethanol production facility and see that power distribution system as well as see how it all works.  Electricity requirements for ethanol production average 0.75 kWh per gallon.  Some facilities have production capacity over 100 million gallons per year and electricity is a major cost component.  Large facilities are served at medium voltage at 12.47 to 13.8 kV Ethanol Production  

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Arc Flash – Unplugged

Arc Flash – Dynamite, gasoline, gunpowder and electricity: What do these have in common? Each one can explode. Something as simple as the slip of a screwdriver can cause the electric power system to act like a bomb. Technically known as an arc flash, this potentially devastating explosion can occur when accidental contact is made between energized conductors or between one conductor and a grounded surface, such as an equipment enclosure.

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