Before an arc-flash study can be run in analysis software, someone has to physically walk the facility and record the equipment and protective device data the study depends on. This field sheet is built for exactly that: one row per piece of equipment (switchgear, panel, MCC, etc.), capturing bus voltage, available fault current, the upstream protective device's type and settings, working distance, and whether an arc-flash label is already present. Print it, take it into the field on a clipboard, and transcribe your findings — or fill it directly on a tablet/laptop.
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Facility Information
Equipment ID
Location
Equip. Type
Bus Voltage
Avail. Fault Current
Upstream Device Type
Upstream Settings
Trip Curve
Working Dist. (in)
Existing Label (Y/N)
Field Safety Reminder
This sheet is for collecting data only — it does not replace a proper arc-flash risk assessment, and it does not authorize opening energized equipment. Follow your facility's electrical safety program (e.g. NFPA 70E) and existing equipment labels when collecting field data; if a piece of equipment has no visible nameplate or label, note it and consult as-built drawings rather than opening the enclosure.
How to Use This Template
Fill in Facility Information so the completed sheet is traceable to a specific site visit.
Walk the facility and record one row per piece of equipment where an arc-flash boundary needs to be established — main switchgear, distribution panels, motor control centers, and any equipment likely to be serviced while energized.
Read bus voltage and available fault current from equipment nameplates, as-built drawings, or a prior short-circuit study — do not open live equipment to obtain this data.
Record the upstream protective device (breaker or fuse) type, its trip/pickup settings, and time-current curve designation — this determines clearing time, which drives the incident energy calculation.
Note the standard working distance for the equipment class (commonly 18" for low-voltage panelboards/MCCs, 36" for switchgear — confirm against IEEE 1584 or your study methodology) and whether an arc-flash label is already posted.
Hand the completed sheet to the engineer or software running the arc-flash study — this is the raw input data the incident energy and PPE category calculations are built from.