Lightning Risk Assessments Require Updates Every Five Years
New updates to the IEC 62858 standard introduce significant changes in how lightning risk assessments should be conducted. These changes will primarily affect safety managers, facility managers, and risk assessors who are responsible for maintaining lightning protection systems. Here’s a breakdown of the new requirements and steps to comply:
Key Highlights of IEC 62858 Update:
- Updated Ground Flash Density: Lightning risk assessments based on the EN 62305-2 must now use updated ground flash density (Ng) values every five years. Historical data older than June 1, 2020, will need reassessment, especially if the new Ng values are higher than previously assessed.
- Assessing Risk Using Current Data: Safety managers must ensure that comparisons are made between past and current Ng values:
- If the new Ng value is greater and results in R > RT (Risk exceeds Tolerable Risk), an updated risk assessment is mandatory.
- Even if Ng decreases, protection measures may require adjustments, as some may no longer be necessary when R shifts from R > RT to R < RT.
- Ongoing Monitoring: It is critical to maintain records of previous lightning risk assessments (over the last five years) to perform accurate comparisons and determine whether a reassessment is needed.
Why This Matters:
Lightning risk assessments calculate the likelihood and potential losses (R) due to lightning strikes versus a tolerable threshold (RT). Under the revised standard, businesses must ensure periodic updates to enhance safety and manage resources effectively.
What You Should Do:
To ensure compliance, follow these steps:
- Review your last lightning risk assessment, including Ng values and associated risks.
- Obtain the latest Ng values and compare them with your previous data.
- Determine if updates to your risk assessment are needed based on whether:
- Ng2 > Ng (-5 years)
- R (Risk) has changed relative to RT (Tolerable Risk).
- If required, update your lightning protection measures to ensure compliance with R ≤ RT.
Simplifying Risk Management
Handling these updates might feel daunting, but digital solutions like V-Apps.cloud make the compliance process simpler. The platform offers intuitive tools for tracking historical data, automating comparisons, and alerting users when updates are required. Safety managers can ensure they don’t miss any obligations by leveraging this cloud-based system.
Staying compliant with IEC 62858 ensures workplace safety, regulatory adherence, and better management of resources. Don’t wait too long to reassess your lightning risk protections—proactive updates today can prevent costly damages tomorrow.
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