Lightning risk calculation software helps transform a building's characteristics into a structured study. But for an engineering firm, the crucial question remains: what data is entered, what assumptions are made, and how can the results be interpreted? According to IEC 62305-2 (2024 edition), risk assessment serves to select protective measures tailored to the structure under study.
In Europe, Africa, and other regions applying international standards, the cases differ significantly. A warehouse, an office building, and an industrial site do not have the same occupancy patterns or the same consequences of a failure. Therefore, choosing a tool begins with verifying its ability to represent the actual site, not by seeking an automated result.
LPS Designer Pro is a tool to assist in the calculation and design of lightning protection. Here's how to prepare for its use, read about the functions presented on its website, and organize the validation of the project file before proceeding with the installation.
What is the purpose of IEC 62305-2 lightning risk calculation software?
Lightning risk calculation software organizes a structure's data and helps assess its exposure as well as the potential consequences of an event. According to IEC 62305-2 (2024 edition), this approach allows for the selection of measures designed to reduce the risk to the acceptable level determined for the study.
Linking the calculation to a technical decision
Lightning risk management is the process of assessing risk, selecting mitigation measures, and documenting the evidence supporting those choices. The official presentation by the International Electrotechnical Commission (IEC) precisely describes this objective of assessing and then selecting protective measures.
In practical terms, the software must be part of a comprehensible workflow. The researcher enters the site characteristics, examines the results, and then justifies the proposed measures in a report that the technical manager can review.
- Describe the structure and its environment.
- Characterize the uses, the lines and the possible consequences.
- Evaluate the situation with the stated assumptions.
- Review the protective measures and validate the choices.
Thus, a usable result is not simply a displayed value: it is a value linked to identifiable data. This traceability facilitates communication between the design office, the operator, and the installer.
What data needs to be gathered before starting the calculation?
Before performing the calculation, it is necessary to gather information on dimensions, the environment, uses, incoming power lines, lightning strike density, and anticipated losses. Then, each piece of data must be linked to a source or an explicit assumption. The quality of this preparation determines the interpretation of the result.
Prepare a coherent seizure file
Lightning strike density is a statistical quantity that expresses the average number of lightning strikes on the ground per unit area and per unit period, generally per km² per year. For the purposes of this study, its source, reference period, and suitability for the methodology used must be identified.
Furthermore, geometry and occupancy deserve to be collected with the same rigor as exposure data. An old plan may omit an extension; a general description may obscure an area whose use differs from the rest of the building.
- Structure: plans, dimensions taken, location and associated buildings.
- Environment: location, surroundings and characteristics useful for the study.
- Uses: occupation of areas, activities and consequences of an interruption.
- Lines and systems: electrical inputs, communications and related equipment.
- Protections: existing devices and documents allowing them to be characterized.
For example, in a warehouse with offices, the warehouse worker can distinguish between different uses on their data collection sheet. They also record the date of the plans and any questions to be addressed during the inventory. This way, missing information becomes an identified action rather than a value silently selected.
What features does LPS Designer Pro offer for the study?
LPS Designer Pro offers a risk calculator and features to aid in the design of lightning protection. Its website describes structured input of zones, systems, and lines, as well as the generation of a report and a PDF export. The selected scope must correspond to the actual project being studied.
A seizure organized around the site
The product description mentions a calculation space based on IEC 62305 (2024 edition). It also describes how multiple zones or buildings are considered depending on the data entered and the module used. This allows the project manager to prepare their information in accordance with this framework.
A PDF export is a document in Portable Document Format that allows you to share a static version of the report. It facilitates review, provided that the source code, the date of the report, and the technical decisions that explain the calculations are also retained.
- Check the scope of the calculator for the structure in question.
- Prepare the data for the zones, systems and lines before entry.
- Retain the assumptions necessary for understanding the results.
- Submit the report to the professional responsible for validation.
To examine the tool in the context of your project, consult LPS Designer Pro, lightning risk calculation software. Then, compare the presented functions with the needs of your engineering department and the data actually available.
How to review a result before choosing the protections?
Reviewing the data involves verifying the inputs, the consistency of the assumptions, and the link between the results and the proposed measures. This review must be conducted by a qualified professional or a consulting firm. In this way, the calculation support is integrated into a well-documented technical decision tailored to the specific structure.
Check the assumptions before the equipment
First, the reviewer compares the entered description with the plans and observed uses. Then, they examine the information that influences the result: dimensions, environment, lightning density, anticipated losses, and declared protections.
A calculation assumption is an explicit choice representing a given value or condition used in the evaluation. If it changes, the documentation must identify what has changed and why the calculation was re-examined.
- Do the dimensions correspond to the current building?
- Are the uses and lines correctly described?
- Are the existing safeguards documented?
- Do the proposed measures correspond to the conditions of the site?
- Does the report contain the elements necessary for validation?
Finally, the choice of equipment comes after this analysis. For a project using an early streamer emission (ESE) lightning rod, the selection of the equipment and its installation must be examined within the applicable technical framework. The range of lightning rods LPS France then constitutes a product resource, separate from the validation of the study.
How to move from the study phase to the monitoring of the installation?
After the study is validated, the decisions must be communicated to the installation team, and the information necessary for its operation must be retained. LPS Designer Pro assists with calculations and design. LPS Manager organizes the installation file and the verification history, including associated reports and monitoring of connected devices.
Maintain documentary continuity
Traceability , or an action. Thus, an initial study remains useful throughout the building's lifespan if modifications and verifications can be compared to its initial assumptions.
Furthermore, the operator must be able to retrieve information without having to reconstruct the entire project. A clear file facilitates the preparation of a site visit or the review of an extension. To organize this follow-up, discover LPS Manager and the management of lightning protection installations.
- Retain the validated report and its reference data.
- Reconcile the file with the equipment actually installed.
- Retain the history of checks and associated reports.
- Have the study reviewed when the characteristics of the site change.
In summary, lightning risk calculation software provides structure to the study. The reliability of the report relies on documented input, clear assumptions, and professional validation. LPS Designer Pro supports the calculation and design phases; installation monitoring then extends this process over time. Prepare your plans, usage patterns, and exposure data to conduct a study that is consistent with your site.
Frequently asked questions about lightning risk calculation software
What reference framework should be used for a new study with this tool?
This article refers to IEC 62305-2 (2024 edition), which deals with risk management. The design office verifies the standard and conditions applicable to the project, then documents the assumptions made.
Who validates the result of the calculation?
The result must be reviewed by the qualified professional or the engineering firm in charge of the project. This validation is based in particular on the data entered, the site representation, and the proposed protection measures.
What tool should be used for post-installation monitoring?
LPS Manager organizes the installation file and the verification history, along with the associated reports. In this way, it complements the study work carried out with a calculation tool such as LPS Designer Pro by tracking declared installations and connected devices.
Sources and references
- IEC: Official presentation of IEC 62305-2:2024, Lightning risk management, accessed on 8 November 2026.
- LPS Designer Pro : official presentation of the calculator and its functions, accessed on November 8, 2026; link in the body of the article.
- LPS Manager : official presentation of installation monitoring, accessed on November 8, 2026; link in the body of the article.
