Lightning risk assessment, without the spreadsheet.
Enter the structure, its service lines and risk zones. Voltbench walks the current 2024 edition of the IEC 62305-2 risk procedure and judges every zone against the tolerable limit — each factor resolved from its table, with the citation next to it.
The wizard and on-screen verdict are free. The full clause-referenced report is a one-off purchase.
Risk R — Zone 3 (archive)
Protection requiredIllustrative sample — real figures come from the validated engine. Total-risk bar is log-scaled (10⁻⁶–10⁻³); component bars show relative share.
The current edition, checkable
Built on IEC 62305-2 Ed. 3:2024 — not the withdrawn 2010 edition — and validated against worked references. Every factor shows its table citation and every dropdown its coefficient, so nothing is a black box.
Minutes, not hours
Building archetypes and zone templates prefill typical values, the satellite map suggests the site's lightning density, and a live preview recomputes the risk as you type.
Report you can hand over
The full report carries the working an engineer signs off on — resolved factor tables with citations, the step-by-step calculation trace, and the projected outcome with measures — as a printable document and PDF.
How it works
Describe the site & structure
Add service lines & risk zones
Every zone judged against RT
Unlock the clause-referenced report
Free to assess. Pay only for the report.
Run the full wizard and read your on-screen result — the verdict, each zone's risk against RT, the component breakdown and the engine's stated assumptions — at no cost. A one-off fee unlocks the full clause-referenced report (factor tables with citations, calculation trace, projected outcome) as a printable document and PDF for the file.
Assess your first structure today
The validated Ed. 3:2024 engine is live. Create a free account and run a full assessment — or leave your email to hear about the planned all-access subscription and new tools.
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