The IEC 62305-2 assessment, traceable clause by clause
Model the structure once. The engine computes every risk component under the rules of the jurisdiction you select, shows the coefficient behind each figure, and issues a report your firm signs.
Lumex runs IEC 62305-2 Edition 3,
so the number you sign is the one the standard gives.
What Lumex does
Automated risk calculation
Voltrace™, our IEC 62305-2 risk assessment software, computes every risk component from the Edition 3 coefficients and reproduces all three Annex F worked examples to the published figures.
Traceable calculations
Every result carries a full coefficient trace from the IEC 62305-2 standard, so you can defend each figure line by line for clients or auditors.
Branded protection reports
Generate a branded, client-ready lightning protection report in minutes, with your logo, colours and GST-compliant numbering built in.
Audit-ready compliance log
Every action is saved to an append-only audit log, so you keep a defensible lightning risk compliance trail on every assessment.
Your regulator's numbers, not just the IEC defaults
IEC 62305-2 clause 7.3 gives 10-5 per year as a representative tolerable risk, not a fixed one. Your authority can set its own RT and FT, and Lumex treats those as data you select.
Select
Pick the rules before the calculation
Choose the jurisdiction before anything is computed, so the verdict belongs to the authority that reads it. Each departure from the IEC defaults shows its clause.
Apply
A national tolerable risk carries through
Where your regulator sets its own RT or FT, that value replaces the IEC default everywhere, including the protection Lumex recommends.
Depart
Real departures, already modelled
The standard lists national practices in its own foreword. Germany fixes rp = 1. Italy judges RL1 and RL2 separately. The Netherlands and South Africa leave out Annexes D and E.
Prove
The report says which rules ran
Your report prints the jurisdiction, every departure applied and the citation for each. Any reviewer can tell a regulator's rule from a software error.
One stray formula away from a wrong number
A DIY Excel model and a rebranded Word template break right when it matters most,
and nobody recalls who changed what. Lumex runs the whole assessment in one place.
| What the job demands | Excel + Word | Lumex |
|---|---|---|
| The lightning risk derived from the standard's coefficients | Typed by hand, quick to break | A live engine that recomputes itself |
| Prove how each figure was reached | Buried inside cell formulas | A coefficient trace on every result |
| A client-ready, branded deliverable | Re-skinned by hand each time | Your brand baked into every PDF |
| A record of who changed what, and when | None | An append-only audit log |
| The whole team, scoped to their role | A file per engineer | Roles and shared sites in one place |
| GST-compliant invoicing | Assembled manually | CGST/SGST/IGST, GSTIN, FY numbering |
Purpose-built for IEC 62305, from the first input
Go from a blank project to a client ready report in four guided moves, all in the browser, with no install and nothing to rebuild at the end.
Describe the structure and its zones
Capture the geometry, surroundings and protection, then split it into risk zones.
Work the IEC 62305-2:2024 flow
Six guided steps resolve the lightning risk against the tolerable limit, each with a coefficient trace and a what-if panel.
Review every figure and sign off the report
The author reviews every figure and signs off, each action saved to the audit log.
Issue and share the client ready report
Export the branded, GST-ready PDF, or send the owner a secure link straight from Lumex.
A risk engine, straight from the standard
Lumex recomputes your lightning risk against the tolerable limit as you describe the structure, so every figure traces back to IEC 62305-2 with no spreadsheet to maintain.
See the platform