You can use this as a white paper, technical guide, or internal documentation. Version: 1.0 Date: [Current Date] Reference Standards: IEC 62305-2 (Protection against lightning – Part 2: Risk management) 1. Abstract The IEC Risk Assessment Calculator is a tool designed to evaluate the need for a Lightning Protection System (LPS) and Surge Protective Devices (SPDs) based on the internationally recognized IEC 62305-2 standard. This paper outlines the methodology behind the calculator, defining key risk components (R1 through R4), permissible risk levels, and the step-by-step process for evaluating structures. The goal is to provide engineers, safety officers, and facility managers with a repeatable, data-driven method to protect life, property, and service continuity. 2. Introduction Lightning strikes pose a significant threat to structures, electronic systems, and human life. Installing unnecessary protection is costly, while inadequate protection can lead to catastrophic failure. The IEC 62305 series provides a framework for this decision. Part 2 of the standard introduces a risk management approach, calculating the total risk (R) for a structure and comparing it against a tolerable risk (RT).
[ R_X = N_L \times P_X \times L_X ]
The automates this complex calculation, reducing manual error and ensuring compliance with international safety standards. 3. Core Risk Components (IEC 62305-2) The calculator evaluates four types of risk (R1 to R4). A structure requires protection if any of these risks exceed the tolerable level. iec risk assessment calculator
