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Lightning does not announce itself. A single strike can kill, wreck critical infrastructure, and shut a facility down for weeks. If you manage a data centre, a mine, a hospital, or a commercial building, the real question is not whether lightning will hit. It is whether your structure can take the hit without catastrophic consequences.
Protection starts with understanding risk. Every building carries its own risk profile based on location, height, construction materials, contents, occupancy, and what happens to the business if the power goes out or equipment fries. HHK's professional risk assessments identify, quantify, and categorise these risks in accordance with SANS 62305-2, the international standard for lightning risk management.
Under SANS 62305-2 (which mirrors IEC 62305-2), lightning risk falls into four categories. Each represents a different type of potential loss.
The most critical category. Any structure where people live, work, or gather (homes, offices, schools, hospitals, shopping centres, sports venues) must have its risk of lightning-related injury or death assessed and mitigated. This one is non-negotiable. The standard requires it to be reduced below a defined tolerable threshold.
This covers infrastructure whose failure would affect public safety or community well-being: power stations, water treatment plants, telecommunications hubs, transport control centres, emergency services facilities. A lightning strike here does not just damage equipment. It can paralyse a community that depends on that infrastructure.
Museums, monuments, archives, places of worship, and historically significant buildings. Where a lightning-related fire or structural damage would mean an irreplaceable cultural loss, this category applies.
The broadest category and, for most businesses, the primary motivator. It covers the financial fallout of lightning damage: equipment replacement, business interruption, data loss, reputational damage, increased insurance premiums. The useful thing about Risk 4 is that the calculation can be directly compared against the cost of installing protection. You get a clear financial basis for deciding whether to invest.
The risk assessment calculation produces a number. What you do with that number is what actually matters. HHK’s assessments are prepared by professionals who understand not just the mathematics of risk but the practical engineering of protection. We do not simply tell you that your risk exceeds the tolerable threshold. We tell you exactly which protection measures will bring it within acceptable limits, and we can implement every one of them.
At HHK, the risk assessment is not a standalone report that gathers dust on a shelf. It is the first step in a complete protection journey: analysis, design, installation, certification. All of it delivered by a single accountable partner, working to SANS and IEC standards, backed by nearly 50 years of specialist experience across eight branches in Southern Africa.
An HHK risk assessment is an engineering study, not a checklist. It produces a quantified, defensible result that holds up under scrutiny from insurers, auditors, and regulators.
Every HHK installation includes a full test report and a legally recognised Certificate of Compliance — essential for insurance purposes and regulatory audits.
Our specialists will assess your site, identify your risk exposure, and design a system that meets SANS standards and stands up to Southern Africa's lightning season.
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