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Arc Flash Concerns & Detecting Early Signs

From Flir Systems Incorporated
 

 

The National Electric Code (NEC) has been requiring an arc flash assessment for a few years now, but Utilities do not have to abide by NEC. However, now that the 2007 edition of NESC requires an arc flash assessment by January 1, 2009, all Utilities nationwide will have to perform an assessment. The arc flash assessment is a mathematical calculation to determine the amount of energy available at working distances at a particular work location. With the current build-out of generation facilities and the upgrading of existing substations, the risk associated with the testing of switch gear, metal clad switch gear, pad mount transformers, and other electrical equipment, has risen, along with the available fault current.

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Thermal imagers detect heat patterns in the infrared wavelength (1 micron to 100 micron) spectrum. Search by Specification | Learn more about Thermal Imagers
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Topics of Interest
Conventional arc flash hazard calculators use simple formulae to calculate the flash protection boundary and the incident energy density, but these methods do not represent the effects of the power... (Read More)
It is critical to learn and identify arc flash hazards in your facilities, train employees in safe work practices, and use labels and other awareness aids to keep the message in the forefront and... (Read More)
Arc flash incident energies can often be significantly reduced by simply replacing UL Class RK5, Class K, and Class H fuses with A6D UL Class RK1 fuses. This is an easy and inexpensive solu¬tion,... (Read More)
In medium voltage (3-36 kV) power system applications, recent trends in both international and Indian markets show that conventional types like oil, air and SF6 circuit breakers are being mostly... (Read More)
Arc Flash can severely burn or kill anyone exposed to it. According to the NFPA, arc flash is 'a dangerous condition associated with the release of energy caused by an electric arc.' OSHA is working... (Read More)
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