Home About Services RelaNex Academy Why Us Contact Get in Touch →
ENRU

Arc Flash Studies

Arc flash analysis quantifies the thermal hazard at each point where someone may work on or near energised equipment, so that PPE decisions rest on calculated incident energy rather than assumption. Because incident energy depends directly on clearing time, the study is inseparable from your protection settings.

What this covers

  • Incident energy calculation — at each working position, based on actual fault level and protection clearing time.
  • Arc flash boundary — the distance at which incident energy falls to the second-degree burn threshold.
  • PPE category assignment — matching protective equipment to calculated energy at each location.
  • Label content — the information required on equipment warning labels.
  • Mitigation options — maintenance switching modes, zone-selective interlocking, arc flash relays and setting changes that reduce clearing time.
  • High-energy locations — identifying points where energy cannot be reduced and access must be controlled instead.

What you receive

  • Arc flash study report with calculation basis and results
  • Incident energy and boundary results tabulated by equipment
  • Arc flash label schedule ready for production
  • Mitigation recommendations with the energy reduction each would achieve

Standards and references

Analysis is carried out to IEEE 1584 for incident energy calculation and NFPA 70E for boundaries, PPE and safe work practice, with fault data derived to IEC 60909 or ANSI/IEEE C37.010.

Related services

Load Flow Analysis

Steady-state studies of voltage profile, power distribution and loading across the network.

Short Circuit Analysis

Fault current calculations to verify equipment ratings and underpin protection coordination.

Motor Starting Analysis

Voltage dip, starting current and torque analysis for large motor loads.

All RelaNex Group services →

Need arc flash studies scoped?

Work directly with the engineers doing the analysis — clear scoping from the first conversation.

Get in Touch