• A_be_seedy@beehaw.org
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    1 day ago

    Hey it’s OK to not know what you’re looking at…480v is the RMS voltage, but it really doesn’t have much to do with this.

    This is an arc flash label. It tells you how big a boom a piece of electrical equipment can make.

    It is based on many factors, not just voltage, power, and amperages. It factors in equipment sizes and gaps, locations in the system, etc. to generate a model of how much boom it can go.

    https://e-hazard.com/how-arc-flash-energy-is-calculated/