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The Value Of Conducting Arc Flash Analysis

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.


Extreme pressure and rapid heating leads to destruction of electric systems and equipment. All metal conductors that are along the path of this electric current are affected. Rapid expansion and fast moving heat wave are disastrous to workers and equipment along the path. Metal conductors along the path of the heat and electric current will melt. There is a high possibility of igniting fire which would destroy the premises.

An environment with high voltage and temperature is dangerous and fatal for the workers. Such instances have caused death or decapitating injuries. The explosion happens within seconds in a way that it cannot be controlled and people within the area have no chance to take cover. The pressure bust is technically equivalent to a combination of dynamite sticks. It is violent and causes definite collapse of systems and huge fires within the premises.

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.

If electric systems are not adequately maintained, they are vulnerable to explosions. The safety of a system is guaranteed from installation. Knowing the real potential of the system means you can take adequate precautions. Under protection exposes workers to risky currents and blasts. The analysis conducted helps you to grasp the strength and weakness of your system.

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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