Offers the basic level of protection (84% efficiency) suitable for simple commercial structures with low internal hazards.
Standard rectangular shapes are straightforward, but complex architectures require partitioning. 2. Environmental and Location Factors Ground Flash Density ( Ngcap N sub g simplified iec risk assessment calculator sirac
The Simplified IEC Risk Assessment Calculator (SIRAC) is a software tool designed to help installers and contractors navigate the complex world of . Originally introduced in Annex J of the IEC 62305-2 standard, it offers a "lite" version of the standard's rigorous mathematical formulas. ⚡ What is SIRAC? Offers the basic level of protection (84% efficiency)
): The number of lightning flashes per square kilometer per year in that specific region. Environmental and Location Factors Ground Flash Density (
To use the Simplified IEC Risk Assessment Calculator effectively, you must understand the four standard parameters defined by IEC 62061. SIRAC reorganizes these into intuitive fields.
: Tools such as LIRA (Lightning Risk Assessment) and other database-driven programs now offer the full functionality of the standard, including support for multiple zones, multiple services, adjacent structures, and detailed cost-benefit analysis for economic losses (Risk Component L4). LIRA, for example, was developed using MATLAB GUIDE and implements all the equations and tables from the latest editions of IEC 62305-2.
It instantly applies the correct mathematical coefficients for structural shielding, soil resistivity, and zoning.