LPS Risk Index Calculator
Lightning Protection Risk Index
Risk Index calculator for Lightning Protection System (LPS). Created following BNBC 2020 Table 8.1.27. Select building type, location, environment from dropdown — Risk Index will be calculated automatically. It will also tell you whether LPS is needed.
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Excel
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How to Use
Follow these simple steps to get started
Enter building information in the Input sheet
Select location, environment, building type from dropdown
Risk Index will be calculated automatically
Check if LPS is needed in the Result sheet
Print the report
Tool Preview
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Who Needs This
Frequently Asked Questions
Risk Index is the probability of lightning strike and level of damage — according to BNBC 2021, LPS is needed if it exceeds 1.0.
Location, environment, building height, occupancy, content — all according to BNBC Table 8.1.27.
No, it only calculates the risk index. LPS design must be done separately according to IEC 62305.
The calculator is specific to BNBC 2020. A separate calculator is needed for IEC 62305-2.
Yes, applicable for RMG factory buildings — especially considering the content flammability factor.
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