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Arc-Flash boundary (AFB) Equations and Calculator per IEEE 1584-2018

Electrical and Electronics Design and Engineering

Arc-Flash boundary (AFB) Equations and Calculator per IEEE 1584-2018

Related:

Arc Flash Hazard Calculations Procedure and Considerations For Medium Voltage System 

Preview: Arc-Flash boundary (AFB) Equations and Calculator per IEEE 1584-2018

When 600 < V_oc ≤ 2.7 the final values of incident energy and arc-flash boundary are given as follows:
AFB = AFB₃

When Voc > 2.7, the final values of incident energy and arc-flash boundary are given as follows:

AFB = AFB₂

Where:

AFB₁ = First AFB interpolation term between 600 V and 2700 V (mm)
AFB₂ = Second AFB interpolation term used when Voc is greater than 2700 V (mm)
AFB₃ = Third AFB interpolation term used when Voc is less than 2700 V (mm)
AFB₆₀₀ = Arc-flash boundary at Voc = 600 V (mm)
AFB₂₇₀₀ = Arc-flash boundary at Voc = 2700 V (mm)
AFB₁₄₃₀₀ = Arc-flash boundary at Voc = 14,300 V (mm)
VOC = System open-circuit voltage (kV)

Reference:

IEEE 1584-2018

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