IEC 62305 software

IEC 62305 risk assessment software, built for the 2024 edition

Lumex is cloud lightning risk assessment software for IEC 62305: a real Part 2 risk engine that computes your lightning risk against the tolerable limit, plus the frequency of damage to internal systems, from the standard's own coefficients, traceable to every input, and turns the result into a branded, audit-ready report. It is purpose-built risk assessment software for the current 2024 third edition, in the browser, for your whole team. Public access opens soon.

Lumex is software for the IEC 62305 lightning risk assessment. It runs the full IEC 62305-2 risk method in the browser: you model the structure, its surroundings and the services connected to it, and the engine resolves your lightning risk against the tolerable limit, plus the frequency of damage to internal systems, building it from all eight risk components straight from the standard's coefficients.

It is built on the current 2024 third edition, including Corrigendum 1 to Part 2, so the method behind every number is the one an auditor or authority cites today. New to the standard itself? Start with what IEC 62305 is, then read on for what the software does.

What it does

A real IEC 62305 engine, not an estimator

Lumex computes the assessment in full and shows its working, then turns it into the document you file.

The full risk computation. Collection areas, dangerous-event rates, damage probabilities and loss factors, computed from the IEC 62305-2 coefficients and rolled into all eight risk components, with your lightning risk judged against the tolerable limit and the frequency of damage to internal systems assessed alongside it. See how a risk is calculated.
Traceable to every input. Each result carries the full coefficient trace behind it, so the number your engineer signs can be defended clause by clause, never an opaque black box. More on traceable risk assessment.
Branded, audit-ready reports. One assessment produces a PDF with the structure model, methodology, per-zone results and a sign-off block, carrying your firm's branding. See what makes an audit-ready report.
Inspection and the whole team. A periodic LPS inspection record per IEC 62305-3, plus team workspaces where a project holds many sites, each with its own zones, report and revision history.

See the full platform, feature by feature.

Why software

Why not a spreadsheet or a desktop tool

Most IEC 62305 risk assessments are still run on a spreadsheet or an installed desktop tool, and both carry the same problems. A spreadsheet hides its assumptions, quietly drifts out of step with the standard, and is painful to audit or hand to a colleague. A desktop tool ties the work to one machine and one person's licence, and updating it for a new edition is a manual chore.

Lightning protection calculation software that lives in the browser removes all of that. The 2024 third edition is always the version you are working in, the full coefficient trace is there for anyone to check, a revision history and audit trail record every change, and your whole team works on the same projects at once. The assessment ends not in a raw grid of numbers but in a report an auditor, insurer or authority can follow.

Nothing to install. Cloud software, in the browser, on any machine, with no licence tied to one desktop.
Always the current edition. The 2024 third edition is built in, so you never run an out-of-date method by mistake.
Built for a team. Shared projects, role-based access and one place for the whole firm's assessments.
Who it is for

Who runs IEC 62305 assessments in Lumex

The software is built around how an IEC 62305 assessment actually gets done, in-house or for clients.

Electrical consultants. Run the risk assessment as part of a wider electrical design. See the consultants workflow.
MEP design firms. Fold lightning protection into building-services design and deliverables. See the MEP workflow.
LPS installers & auditors. Produce and sign the assessment and the periodic inspection. See the installer and auditor workflow.
FAQ

IEC 62305 software,
questions answered

What the engine does, how it compares, and how the standard is named.

What is IEC 62305 software?
IEC 62305 software computes the lightning risk assessment defined in IEC 62305-2: your lightning risk judged against the tolerable limit, plus the frequency of damage to internal systems, built from the eight risk components, from a model of the structure, its surroundings and its connected services. Lumex is cloud-based, so there is nothing to install, and it produces a branded, audit-ready report from the same assessment.
Is Lumex a full IEC 62305-2:2024 engine or a simplified calculator?
It is the full IEC 62305-2:2024 method, not a simplified estimator. Lumex computes every risk component and resolves your lightning risk against the tolerable limit, plus the frequency of damage to internal systems, all from the standard's coefficients. The how it works page walks through the method, and every number traces back to the clause and coefficient behind it.
How is the software better than a spreadsheet?
A spreadsheet hides its assumptions, drifts out of date with the standard, and is hard to audit or share. Lumex runs the current 2024 third edition, shows the full coefficient trace behind every result, keeps a revision history and an audit trail, and lets a whole team work on the same projects, ending with a report an auditor can follow.
Does the software work to IEC 62305 or EN 62305?
Both. EN 62305 is the European adoption of IEC 62305 and is technically identical, and many countries adopt it nationally too, for example as IS/IEC 62305 in India. An assessment Lumex produces follows the same method recognised under all of these names. See IEC 62305 around the world.
Does the software use AI to calculate the risk?
No. The risk computation is fully deterministic and AI-free: every value is calculated straight from the IEC 62305 coefficients, and the same inputs always give the same numbers. AI never writes, edits or overrides a result, so the figure your engineer signs is traceable and repeatable.

Get started today

Run your next IEC 62305 assessment
in software, not a spreadsheet

Contact our team