ARC FLASH RISK ASSESSMENT NFPA 70E

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    An Arc Flash is an energy discharge that forms when a fault occurs in an electrical circuit. The arcing fault results in a tremendous amount of energy released as current flowing through ionized air. The arc fault is immediately followed by an arc blast, a pressure wave and accompanying loud sound that results from the superheated air surrounding the arc. An arc flash incident can create devastating injuries including serious burns, hearing loss or loss of life.

    Falcon Power Consultants provides a complete Arc Flash Risk Assessment incorporating industry standard practices that comply with NFPA 70E recommendations using IEEE 1584 calculations.  An engineered Arc Flash Risk Assessment calculates the available short circuit current and rating of overcurrent protective devices provides an accurate means of calculating incident energy, thereby determining appropriate Personal Protective Equipment (PPE). Engineering recommendations for proper coordination and current limiting devices can reduce the occurrence of or damage from an arc fault.

    Upon completion of an Arc Flash Risk Assessment, equipment should be field labeled to indicate the risk of an arc flash risk assessment and identify the rating of PPE that is necessary to minimize an arc flash injury.

    CAUSES OF AN ARC FLASH INCLUDE

    • Poorly Maintained Equipment

    • Workers Interacting with Energized equipment

    • Removal/Installation of circuit breakers or fused switches

    • Removal of Bolted/hinged covers on enclosed equipment

    • Workers Inadvertently drop tools into energized parts

    • Insulation Failure due to dust or an accumulation of contaminates or water

    • loose connections

    • unsuccessful short circuit interruptions