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Arc Flash Risk Assessment & Relay Coordination

An Arc flash risk assessment is a type of electrical explosion or discharge that results from a low-impedance connection through the air to ground or another voltage phase in an electrical system.

Arc flash temperatures can reach or exceed 35,000 °F (19,400 °C) at the arc terminals. The massive energy released in the fault rapidly vaporizes the metal conductors involved, blasting molten metal and expanding plasma outward with extraordinary force. A typical arc flash incident can be inconsequential but could conceivably easily produce a more severe explosion. The result of the violent event can cause destruction of equipment involved, fire, and injury not only to an electrical worker but also to bystanders. During the arc flash, electrical energy vaporizes the metal, which changes from solid-state to gas vapour, expanding it with explosive force.

We at WIRE, use the tested and proven software ETAP and DIGSILENT to perform short circuit studies, relay coordination studies, and arc flash studies. These assessments meet the new regulation noted on NFPA 70E, IEEE 1584, NESC (National electric safety codes), and OSHA.

Studies can be customized to include any and all of the following:

PROCESS OF ARC FLASH RISK ASSESSMENT AND RELAY COORDINATION STUDY:

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