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Three studies that build on each other. Arc flash uses the fault currents from the short circuit study and the clearing times set by coordination.

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Short circuit

How much fault current the system can deliver at each bus, and whether the equipment installed there is rated to interrupt and withstand it.

ANSI/IEEE C37 · NEC 110.9, 110.10

You receive
  • Fault current at each bus
  • Equipment rating evaluation, with over-dutied equipment flagged
  • Short circuit report

Selective coordination

Protective devices set so the device closest to a fault clears it and the rest of the system stays in service. Required for emergency, legally required standby, and critical operations power systems.

IEEE 242 · NEC 700, 701, 708

You receive
  • Time-current curves
  • Recommended device settings
  • Coordination report

Arc flash

Incident energy and arc flash boundary at each piece of equipment, calculated from the available fault current and the clearing time of the upstream protective device.

IEEE 1584-2018 · NFPA 70E

You receive
  • Arc flash labels, printed
  • Incident energy and arc flash boundary at each location
  • Arc flash report

Study options

Complete power system study

  • Short circuit equipment evaluation
  • Selective coordination with time-current curves and recommended settings
  • Arc flash analysis with printed labels
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Short circuit study

The fastest study. Fault current at each bus and an equipment rating evaluation, for design, permitting, and equipment selection.

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Short circuit and arc flash study

Arc flash results at the existing protective device settings, with no coordination review and no settings recommendations. Critical findings are still flagged. Suited to older facilities where settings changes are not feasible.

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