While helpful, SIRAC has notable drawbacks that professionals should keep in mind:
): Economic loss (structure, content, and economic activity). R1cap R sub 1 R3cap R sub 3 , the standard defines a . If the calculated risk ( ) is greater than the tolerable risk ( RTcap R sub cap T ), a lightning protection system must be installed. For R4cap R sub 4
): Relative location (e.g., structure surrounded by higher objects, isolated, or on a hilltop). Average lightning strikes per km2k m squared per year in that specific region. 2. Risk Component Calculation simplified iec risk assessment calculator sirac
EN 62305-2:2006 - Protection against lightning - Part 2: Risk
module. The tool didn't just ask for technical specs; it forced him to visualize the "What Ifs." What if the cooling pump fails? What if the emergency shutdown lags by three seconds? The SIRAC engine began its work, crunching the Likelihood For R4cap R sub 4 ): Relative location (e
Creating a feature for the involves digitizing the parameters found in IEC 62305-2 Annex J . This tool was originally designed to assess lightning risks for simple, single-zone structures without requiring the exhaustive calculations of the full standard. ⚡ Core Functionalities of SIRAC
However, performing a risk assessment according to IEC 61508 can be a complex and time-consuming task, requiring significant expertise and resources. To simplify this process, the Simplified IEC Risk Assessment Calculator (SIRAC) has been developed. In this article, we will explore the SIRAC tool and its benefits in streamlining IEC risk assessment. including: Tools like
: Included tables to estimate relative amounts of economic loss when precise planner data was unavailable. Automated Risk Leveling
. It enables engineers and safety professionals to determine whether a structure requires a Lightning Protection System (LPS)
The SIRAC tool is suitable for a wide range of organizations and industries that require IEC risk assessments, including:
Tools like , SICK Safety Designer , or Siemens SISTEMA often include a SIRAC-style module.