Answers
Frequently Asked Questions
Common questions about arc flash studies, NFPA 70E compliance, pricing, and what to expect working with PowerSafe Engineering.
Arc flash, short circuit, and selective coordination studies, load flow and voltage drop analysis, condition assessments with infrared thermography, and electrical design. Most clients need two or three of those, and they run on one model, which is why bundling them costs less than buying them separately.
NFPA 70E 130.5 requires the risk assessment to be reviewed at least every five years, and sooner if a system change could affect the results — a new transformer, a new service, or a utility upgrade that raises available fault current.
Protective device count is the main driver, then the number of services, voltage levels, and sites, plus travel and how accessible the gear is. The cost calculator gives a budgetary range. A written fixed fee follows a no-cost scoping call. We do not bill hourly.
A fixed-fee proposal comes back within two business days of scoping. Field data collection runs one to three days for most facilities. The sealed report follows in two to three weeks, with labels installed on the same trip or a return visit, whichever suits your schedule.
Most data is collected energized, in appropriate PPE. A few enclosures need a de-energized window to verify settings or nameplate data safely. We identify which ones in the proposal so the outage is planned rather than discovered mid-visit.
Yes. Every study is reviewed and sealed by a PE licensed in the state where the facility is located. Give us the site address during scoping and we confirm licensure, and any firm registration requirement, before the work starts.
We print and apply weather-appropriate labels on site, placed where a worker sees them before opening the enclosure. Every studied enclosure gets one, including the ones nobody remembers. You also get the print-ready files, so a damaged label can be replaced without calling us.
Yes. Your SKM model is released to you with the report. That is deliberate: it means the next update is an update rather than a new study, and you are not locked into us to make a settings change five years from now.
Usually. We validate the existing model in the field, correct what has changed, and rerun the analysis — typically less than a study built from scratch. If the original was a desktop exercise with no field verification, we will tell you that before quoting an update.
NFPA 70E for the risk assessment, IEEE 1584 for incident energy calculation, and the NEC for labeling and available fault current marking, including 110.16 and 110.24. OSHA enforces 1910.132 and 1910.333 and treats 70E as the recognized industry practice.
Find out where your facility stands.
A 10-minute call with a licensed PE — we'll tell you what your study should cover and what it should cost. No obligation.
