Mitigating Arc Flash Hazards - A Simple Graphic Helps Visualize Five Distinct Safety Approaches

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Information about Mitigating Arc Flash Hazards - A Simple Graphic Helps Visualize Five...
Technology

Published on March 13, 2014

Author: SchneiderElectric

Source: slideshare.net

Description

The understanding and awareness of arc flash and related hazards has increased greatly in industry. However, the application of product or design solutions intended to reduce the hazard levels or mitigate the risk of arc flash events has received relatively little attention. A simple graphic will provide information on five distinct methods that have been successfully applied in arc flash mitigation solutions.

Terry Schiazza February 2014 SME Conference, Salt Lake City, USA

2 ● Background ● Industry Issues ● Arc Flash Characteristics ● Visualizing Arc Flash Mitigation Solutions ● Conclusion

Common contributing factors across the reported incidents include: • Working on live electrical equipment without standard operating procedures • The use of faulty electrical equipment, and • Inadvertent contact with ’live’ electrical equipment near water or in damp situations http://www.worksafe.vic.gov.au

5 5-10 2000

500ms500ms100ms50ms 1s Arc Blast & Arc Flash occur together. The term Arc Flash often refers to both phenomena. From here on, the term Arc Flash will be used for both terms. Damages Thermal Effects Fault Duration

8 • Engineering Controls • Future Developments • Wise Investment

10 Mitigating arc flash hazards – A simple graphic helps visualize five distinct safety approaches Coal, copper, silver and more; you would probably agree your most precious resource is your people. The protection of personnel must be of utmost importance in procedure and practice. In the area of electrical systems, it begins in the design phase and continues through implementation, installation and execution. Recently, the understanding and awareness of arc flash and related hazards has increased greatly among electrical workers, engineers, and safety personnel. But while much attention has focused on the need for system analysis and the selection of appropriate Personal Protective Equipment (PPE), the application of product or design solutions intended to reduce the hazard levels or mitigate the risk of arc flash events has received relatively little attention. This paper, through a simple graphic, will provide information on five distinct methods that have been successfully applied in arc flash mitigation solutions.

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