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Arc Flash Standards
Arc Flash Standards

NFPA 70E is the Standard for Electrical Safety in the Workplace. This is a document that is published by the NFPA and is not an OSHA document. It is also not a part of the NEC previously mentioned, but is instead a self-contained document.

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Arc Flash Compliance
Arc Flash Compliance

Arc Flash compliance is essentially governed by OSHA although their regulations do not specifically address arc flash and arc blast as hazards in the workplace, they can and will issue citations for workplaces not addressing these hazards.

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NIOSH
NIOSH

NIOSH is part of the U.S. Centers for Disease Control and Prevention, in the U.S. Department of Health and Human Services. It has the mandate of helping to assure "every man and woman in the nation safe and healthful working conditions and to preserve our human resources."

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OSHA
OSHA

The Occupational Health and Safety Administration (OSHA) is responsible for enforcing work place safety regulations in the U.S. OSHA is a part of the U.S. Department of Labor and was established as a law in 1970, and became effective in 1971.

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Short Circuit Current Calculations
Short Circuit Current Calculations

The two main standards used for short circuit analysis would be from ANSI C37.010 and IEC 60909. These standards are widely used for calculating short circuit fault values in electrical power systems. Both are suitable for meeting the requirements of the NEC 110 labeling requirements for fault current values, as well as electrical equipment and protective device selection and application.

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IEEE 1584 Arc Flash Calculations
IEEE 1584 Arc Flash Calculations

The Institute of Electrical and Electronics Engineers (IEEE) published the IEEE 1584 “Guide to Performing Arc Flash Calculations” to provide formulas and methods for calculating arc flash values in the workplace.

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OSHA & Arc Flash
OSHA & Arc Flash

OSHA has released their final ruling making major modifications to their 1910.269 section of the CFR. This section deals with Electric Power Generation, Transmission and Distribution.

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Fault Current Calculations
Fault Current Calculations

Fault current is electrical current that is released during a system fault within the electrical system. There are many different causes of these types of faults, but with any fault there is unintentional, large magnitudes of current that is released.

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