Risk of arc flash; system voltage, potential short-circuit current, and protection tripping time It depends — high fault current and slow tripping mean high arc energy. Incident energy (cal/cm²) and PPE class are determined solely by the detailed study IEEE 1584 / NFPA 70E; This tool is a preliminary awareness assessment.

Priority = voltage + short-circuit current + tripping time factors (see IEEE 1584 study for exact results)
Example calculation: Low voltage + medium short-circuit current (10–25 kA) + medium tripping time → 'medium priority'; detailed arc flash study is recommended under IEEE 1584.

Arc Flash — Awareness Assessment

Assess your arc flash risk awareness based on your system conditions. This tool does not calculate energy (cal/cm²).; It prioritizes only the need for detailed study.

Important: Arc flash incident energy (cal/cm²) and PPE class, only With a detailed arc flash study according to IEEE 1584 / NFPA 70E. It is determined — the actual short-circuit current, the device tripping curve, and the operating distance are required. This tool does not replace this work; it is a preliminary indicator for priority and awareness.
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How is it calculated?

  1. Select the system voltage (LV/MV).
  2. Select the expected short-circuit current range.
  3. Select the protection activation period and press Evaluate.

Frequently Asked Questions

How is arc flash energy calculated?
The incident energy (cal/cm²) is calculated using the IEEE 1584 method, which incorporates the actual short-circuit current, the device tripping curve, and the operating distance.
Does this vehicle provide a PPE (Personal Protective Equipment) rating?
No. The PPE (personal protective equipment) class can only be determined by a detailed arc flash study; this tool only provides a preliminary indication.
How can the risk of arc flash be reduced?
Rapid-opening protection, arc mitigation systems, remote operation, and appropriate PPE are used to reduce the risk of arc damage.

Related tools and services

This tool and its content are for general informational purposes only; they do not constitute a binding inspection/declaration of conformity. Definitive results will be determined through on-site inspection in accordance with relevant legislation and standards. Get a quote →