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Arc-Flash Calculations

Review the basics of arc-flash calculations, then look at how to perform them in ElectroBIM.

We look at the following topics for arc-flash calculations:

  • Issues ElectroBIM users face when calculating arc-flash
  • Calculating fault current values
    • Getting the starting fault from the utility
    • Determining wire lengths and sizes
  • The underlying basis for arc-flash calculations
  • Configuring your devices in the Panel Edit command
    • Resultant calculations for incident energy and arc-flash boundary distance
  • Determining the breakers for each device
    • Anatomy of a time-current curve graph
    • What you can do when you don't know what breakers will be used
    • Setting and configuring the breaker curve
  • The arc-flash schedule and arc-flash stickers
    • Anatomy of an arc-flash sticker

We also answer the following questions:

  • "What is the approach for calculating arc-flash with single-phase devices?"
  • "What do I do when I don't have a necessary piece of information?"
  • "How do you address calculations through a transfer switch being fed by a standby generator?"
  • "What do I do if the breaker database doesn't have what I need?"