IEEE 1584 · Engineering
Arc Flash Analysis in Italy | Complete Safety Guide
Carelabs' arc flash studies for Italian facilities follow three steps: identifying incident energy levels at every working point using the IEEE 1584 method and ETAP modelling; determining the correct PPE category and arc flash boundary for each; and delivering equipment labelling and a CEI 64-8-aligned report package for compliance under D.Lgs. 81/2008 and CEI 11-27/78-25.
Free ConsultationWhat a PES needs before authorising the work
CEI 11-27 sets out who may carry out electrical work and under what conditions. The framework depends on the hazard being understood, and for an arc that means a number rather than a judgement.
What We Deliver
Incident energy per working position
Energy is calculated in cal/cm² to IEEE 1584-2018 from the electrode configuration, enclosure dimensions, gap and working distance recorded on site. Each of those materially changes the result, which is why a generic figure is not a substitute.
THE FRAMEWORK
Qualification assumes the hazard is known
D.Lgs 81/2008 requires the employer to assess risk and provide adequate protection. CEI 11-27 defines who may work and how. Neither can be applied properly to an arc hazard whose magnitude has never been established.
- Assessment to IEEE 1584-2018, with the validity range stated and any extrapolation beyond it identified rather than quietly absorbed.
- Fault current from a short circuit study to IEC 60909, using the fault level obtained from the distributor for the point of delivery.
- Minimum source conditions assessed as well as maximum, since a lower fault current can fall below an instantaneous threshold and extend the arc duration substantially.
- Clearing times read from installed devices rather than from the settings schedule, which diverges from reality across the life of a plant.
- Installation findings referenced to CEI 64-8, so remediation is expressed in the terms your installer and maintenance contractor already work to.
DELIVERABLES
What you receive
A signed engineering report aligned to CEI 64-8 and IEEE 1584, supporting the risk assessment required under D.Lgs 81/2008.
- 1Incident energy and arc flash boundary by equipment and working position
- 2Equipment labels ready to apply, with a placement schedule
- 3PPE specification per position, referenced to calculated energy rather than a generic class
- 4Mitigation options for positions above the practical PPE limit, each with the clearing-time change it requires
- 5The calibrated ETAP model, retained so the study is re-run rather than repeated
How the study runs
Identify work on or near live parts
We establish which equipment is genuinely accessed energised, since that defines the assessed scope. Exclusions are recorded so the boundary of the study is auditable.
Site survey
Enclosure geometry, electrode configuration, gap and working distance are captured with nameplate data, because the calculation is sensitive to all of them.
Supply and fault basis
Fault level at the point of delivery is requested from the distributor, and a short circuit study establishes bolted fault current at every busbar.
Protection review
Settings are read from the devices and clearing time is taken from the real characteristic at the calculated arcing current rather than the nominal curve.
Calculate and label
Energy, boundaries and PPE requirements are determined per position and labels are produced for application to the assessed equipment.
Brief the responsible people
Findings are ranked and the people responsible for authorising and supervising electrical work are briefed, so the results inform the work plan rather than sitting in a file.