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The Value Of Conducting Arc Flash Analysis

Written By Tao on lundi 17 février 2014 | 02:03

By Krystal Branch





Arc flash analysis is required in all industries where high voltage tools are used in daily operations. It is aimed at reducing the possibility of fire hazards that result from the passage of high voltage current through the air. It causes an explosion that damages the equipment with temperatures that can be as high as 35000 F.



Electric flashes come with explosions that damage equipment and the network. It melts metallic conductors along the path because of the heat that is generated. The heat wave moves fast causing rapid expansion which is a disaster for workers and equipment along its path. These are prefect conditions for starting fires and have been the cause of disasters in many plants and industries.



Extreme temperatures combined with high voltage precipitate a disaster. There is imminent death or grave injuries for anyone caught in the situation. It takes a fraction of a second to cause the explosion such that personnel around the area are helpless. They have no time to switch off machines or escape from the scene. The magnitude is like that of several sticks of dynamite put together. It causes a collapse of the entire electric system and results in a huge fire.



Electricity regulatory boards demand that labels be strategically placed on equipment and areas where the potential for a blast is real. Such precautions can only be taken where a detailed study has been conducted and danger zones identified. Experts evaluate your electric systems and areas that are likely to expose you to danger. Boundaries will be marked and details provided on the potential energy from the explosions.



An analysis is required for any industry or plant where energized electric parts are used. Workers should have personal protection equipment (PPE) before entering into these zones. The law restricts operating energized tools but most of the mistakes arise from oversight and unintended errors. Workers who are adequately protected will be exposed to less danger. Each environment requires unique PPE. To master the kind of protection required, you need to understand the potential of your system.



Failure to maintain electric systems properly raises the level of exposure to danger. Professional installation and constant maintenance are necessary to guarantee safety. A detailed analysis will give you the potential of your system so that adequate measures can be taken to protect those working around. It also will indicate the weaknesses and strengths of such a system and allow you to put in place measures for protection.



There is a way flash arc energy can be reduced in order to scale down the level of PPE required and minimize the possibility of damage. An adjustment may be made on the tripping device for the circuit breaker. The amount of energy during a fault will be reduced. This approach is likely to affect the coordination of the protective devices. This is a delicate and technical assignment that can only be done by specialists.



Each electric system produces a unique arc flash analysis report. There are software used to generate detailed reports which include the strengths and weaknesses of your system. The report gives you a clear picture of the danger that lies within your system so that you can protect yourself.









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