Arc-Flash Mitigation is Top of Mind for Plant Managers
A recent survey conducted by Littelfuse reveals that 85 percent of 825 surveyed plant professionals agree or strongly agree that arc-flash mitigation is important. In addition, 67 percent of respondents reported completing an arc-flash hazard assessment in their facilities.
Arc-flash hazard assessments have been used to determine the Hazard Risk Category (HRC) of each piece of electrical equipment (a scale of 1-4). Although the NFPA 70E is moving away from HRCs, they remain a well-known classification, says Littelfuse. More than 50 percent of survey respondents reported having significant (HRC 3 or higher) arc-flash hazards and agreed that reducing those hazards is important.
How then to reduce arc-flash hazards and keep workers safe? Survey respondents ranked the popularity of solutions with the most popular mitigation technique being current-limiting fuses, followed by arc-resistant switchgear, arc-flash relays, and high-resistance grounding.
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