Sunday, October 20, 2013

Employee Protection And Arc Flash Analysis And Training

By Elena McDowell


In today's power engineering, people should not only assure that all facilities receive the power needed reliably and efficiently, it is also very important to always make sure that they are performed as safely as possible. Being very near to any live electrical equipment can be very dangerous for your workers. Administrative controls, appropriate arc flash analysis and applied safety practices can possibly reduce the risk of arc flash injuries.

As defined, arc flash is an electrical explosion which typically results from low electrical impedance of another voltage phase or connection to ground of an electrical system. In other words, it occurs when current of electricity flows between separated or two energized conducting surfaces. It has been known that common causes of this to occur include human error, improper work processes, accidental contact, insulation failure and other environmental factors that lead to snapping of its connections.

In line with this, the National Fire Protection Associated established standards that ensure safety in the workplace. These standards are designed to promote safety for the personnel as well as prevent possible damages to the equipment. Therefore, it must be strictly followed in every industry.

The leading electrical industries are mandated to perform arc flash training and analysis. Every employee needs to undergo intensive training related to electrical safety. Certification is required by every state and all companies are expected to comply. This ensures that the workers understand the importance of such policies and, therefore, pledge to apply all safety procedures.

With increased awareness of the common dangers present, there have been various methods developed and applied in many companies of protecting their personnel. This may include workers wearing PPE, proper configuration of their electrical equipment and modifying their existing designs. However, it is said that one of the best ways to reduce the hazard is to de-energize the equipment during personnel interaction.

It is important to stick by the regulation not to operate live equipment higher than 50 volts. If it cannot be helped and the personnel have to work with energized equipment, he must conform with the strictest safety practices before performing the task. He has to wear the appropriate protective equipment, assess the risk, perform expert analysis and use the proper materials only.

Safe work procedure is another way of preventing injuries and issues relating to arc flash especially in the event of incident. One major precaution implemented within the workplace is following all labels and warning signs. Also, it is highly recommended that all employees should only perform the functions which they are trained and qualified.

Training to personal protective equipment or also known as PPE is also an essential for any electrical work. The training is provided to every employee to make him aware of all the equipment and materials necessary to assure safety. Depending on risks associated, the PPE may include materials such as face shield, insulating gloves, headgear and appropriate flame resistant clothing.

To fully maximize the benefits of arc flash analysis, it must be understood and performed not only by the workers but by the management as well. Unless the management fully understand its importance, it may conveniently overlook such a crucial preparation. The fraction of effort it asks for is nothing when compared to the protection it provides to the company's asset.




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