Power System Studies
Arc Flash Hazard Analysis
NFPA 70E-compliant arc flash studies with IEEE 1584-2018 calculations, PE-stamped and labeled.
Overview
Arc flash incident energy quantifies the thermal hazard a worker faces when interacting with energized equipment. We model your facility in ETAP or EasyPower, run IEEE 1584-2018 calculations against your actual protective device settings, and produce field-ready warning labels and a PE-stamped report that satisfies OSHA 1910.333 and NFPA 70E article 130.
What's included
Scope of work
Equipment data collection (single-line review, nameplate verification, site walk)
System modeling in ETAP or EasyPower with verified impedances
Short-circuit analysis at every studied bus
IEEE 1584-2018 incident energy calculation for working distances appropriate to each enclosure
PPE category determination and boundary calculation
Per-equipment ANSI Z535-compliant warning labels (printed and shipped)
PE-stamped final report
Methodology
How the engagement runs
A consistent process means predictable timelines, fewer surprises, and a defensible record if anyone (AHJ, insurance, OSHA) asks how the work was done.
- 01
Field data collection
Single-line verification, panel and equipment nameplate capture, protective device settings recorded as-found.
- 02
System modeling
Network built in ETAP or EasyPower with verified utility contributions, transformer impedances, and cable lengths.
- 03
Short-circuit and incident energy calculation
IEEE 1584-2018 equations evaluated at each bus, with sensitivity checks on relay clearing time.
- 04
Mitigation review
Where energy exceeds 40 cal/cm² or PPE limits, we identify upstream relay adjustments, ZSI, or maintenance switch additions to reduce exposure.
- 05
Labels and report
ANSI Z535 labels printed and shipped. PE-stamped report covers methodology, results, and recommendations.
Stamped
100%
Every deliverable PE-stamped by a licensed engineer in the project state. Across all 24 registered states.
Response
1 day
We respond to every inquiry within one business day with a scoped proposal and a real timeline.
Veteran-owned
VOSB / SDVOSB
SAM.gov registered. UEI H6HAZKAD4LJ7 · CAGE 08E02. Set-aside eligible.
When you need it
Triggers
- →OSHA citation or insurance audit finding
- →New construction or major service equipment change
- →Relay setting changes or upstream utility upgrades
- →Five-year NFPA 70E review interval reached
- →Facility acquisition or change of ownership
What you receive
Deliverables
- PE-stamped arc flash study report (PDF)
- Printed ANSI Z535 warning labels for every studied bus
- Updated single-line diagram
- Short-circuit study results (often delivered as a companion document)
- ETAP or EasyPower model file (on request)
FAQ
Common questions
How often do arc flash studies need to be updated?+
NFPA 70E article 130.5(G) requires review every five years, or whenever a major modification or renovation could change available fault current. Whichever comes first applies.
Do you provide PPE program training along with the study?+
On request, yes. We can deliver a tailored NFPA 70E refresher session for facility maintenance and operations staff as a follow-up engagement.
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Ready to scope your arc flash hazard analysis engagement?
Send us the basics (facility type, equipment, timeline) and we’ll respond with a scoped proposal within one business day.