Your layout, evaluated
Begin with a proposed rod layout or place your own. Move rods, adjust their heights and edit down-conductor positions. Save and recompute to evaluate the changed design.
IEC 62305-3 · Ed. 3.0:2024 · Lightning protection system (LPS)
Lightning protection design to IEC 62305-3.
Develop the layout. Check the roof coverage.
Develop external lightning protection on the building you modelled. Edit rod and down-conductor positions, inspect roof coverage and exposed areas, and calculate separation distance and earthing requirements.
Calculations and on-screen working are free. Pay once for this study’s documents and reissues, or unlock the whole building.
See the roof levels
Use rolling-sphere, protection-angle or mesh methods within their supported scope. Inspect the relevant roof plans, sections, coverage findings and exposed areas.
The calculation behind the design
Separation distance is available by the simplified and general approaches. Inspect earthing, materials, bonding, touch and step measures, and inspection requirements with their clause references.
What you enter and what you get
- Use the shared structure and review the protection class.
- Select a method and develop the protection layout.
- Save, recompute and inspect coverage and design findings.
- Issue the roof plans, calculations and stated requirements.
The document you can inspect
Roof plans and sections, air-termination findings, down-conductor layout, separation and earthing calculations, and the materials, bonding and inspection requirements.
Issued reports carry a title block, report number and revision history. The full sample is open without an account; the sample dossier shows all three studies on one building.
IEC 62305 · Ed. 3.0:2024
Part of one building model
One building. Three studies. One document. This study is one stage of it: describe the building once, and the three studies run against the same model — live in 2D and 3D.
The protection level from Part 2 floors the Part 3 design; both feed the Part 4 schedule. Inherited values carry their source, a weaker choice is refused, a departure is printed as a departure — and an input changed after a study computed flags that study stale.
Check the scope for your project
Supported building parts have flat roof levels. Automatic routing around arbitrary rooftop plant and parapets, installation fixing schedules, a bill of materials and isolated mast/catenary designs are outside this workflow. Structures with a risk of explosion are part of it (IEC 62305-3 Annex C): a metal tank's wall, earthing and floating roof are checked, and every other requirement that applies to your zones is recorded as you state it. Two things stay with you: classifying the hazardous zones, which you take from your hazardous-area drawings, and vessels or piping inside another building. Positioned external equipment belongs to the SPM study; it does not become an automatically routed obstacle.
Start with your building
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