Normal: Choose IEEE 1584-2018 or IEEE 1584-2002.

Unit of measure: Imperial (in) or Metric (mm). Observe that Conductor Hole is all the time in metric.

Voltage (Vac): Enter an AC voltage between 208 V and 15,000 V. AC voltage ranges outdoors of this range, and DC voltage levels, aren’t supported by the IEEE 1584-2002.

Fault current (kA): Three-phase bolted potential fault present in kA.

Arcing time for Iarc (ms): – The fault clearing time for the calculated regular arching present.

– Embrace the protection relay and circuit breaker clearing time.

– Comply with a 3-step course of to specify the arching time:.

Step 1: Depart the default time value, and click on Calculate.

Step 2: Use the calculated arcing current Iarc to determine the precise fault clearing time for your protection system,

Step 3: Click on on Calculate once more, to calculate the Incident Energy and Arc Flash Boundary.

– Be aware that the time doesn’t have an effect on the magnitude of the acing current.

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