Arc Flash & Protection Coordination Studies
A power system study is only useful if the model matches the installation. We build the model, run the analysis, and produce the labels, curves and report that make the results usable on site.
Concrete deliverables, not vague promises.
Analysis
- Short circuit study with three-phase and line-to-ground fault duties
- Protective device coordination with time-current curve sets
- Arc flash incident energy calculation to IEEE 1584-2018
- Load flow and voltage drop analysis
- Motor starting and transient analysis where applicable
Documentation
- Arc flash warning labels formatted to NFPA 70E requirements
- Updated single-line diagrams reflecting the modelled system
- Recommended protective device settings schedule
- Equipment evaluation against available fault duty
- Full study report with methodology, assumptions and recommendations
Model handover
- The ETAP or SKM model file, so the study can be updated rather than repeated
- Model documentation covering data sources and assumptions
Existing single-line diagrams, equipment nameplate data, cable schedules, protective device types and current settings, and the utility's available fault current letter. Where data is missing we identify what's needed and, where industry-typical values are defensible, apply and document them.
Codes & standards
IEEE 1584-2018, NFPA 70E, IEEE 242 (Buff Book), IEEE 399 (Brown Book), NEC Article 110, and IEC 61482 / IEC 60909 for projects on IEC-governed systems.
Full service engineering design. Delivered remotely.
- 01
Start with a bounded request
Send what you have — sketches, GIS/CAD files, pole data, spreadsheets. A named engineer reviews it and confirms a scoping timetable.
- 02
Agree scope, standards & criteria
Work begins once a written SOW sets deliverables, assumptions, standards and who owns each engineering decision.
- 03
Produce with visible controls
Assumptions, RFIs and progress are logged as they happen, not buried inside the drawing set.
- 04
Independent QA & handoff
A second reviewer checks the package against the SOW before a revision-tracked transmittal ships.
Facility and plant operators meeting electrical safety program obligations
Electrical contractors delivering studies as part of an installation scope
Consulting engineers absorbing study workload without adding headcount
EPC contractors on industrial and utility projects
Does this need to be stamped by a licensed engineer?
In most US jurisdictions, yes: an arc flash study relied on for worker safety is typically expected to carry a PE seal. We produce the model, analysis and full report; sealing is by your engineer of record. Discuss this at scoping so the deliverable is structured for their review.
How current does the data need to be?
The study is only as good as the model. Where a system has been modified since the last documented single-line, the study should be preceded by a data collection exercise: we'll tell you if what you've supplied isn't sufficient rather than producing a study built on a stale model.
Do you provide the labels themselves?
We produce print-ready label artwork with the calculated values, formatted to NFPA 70E. Physical printing and installation is handled locally.
Have an arc flash & protection coordination studies project to scope?
A sketch, a photo, a spreadsheet: send what you have and we’ll take it from there.