Smart Surge Arrester Protection Solution: Based on Full Lifecycle Lightning Detection & Dynamic Evaluation System

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​I. Core Concept: Active Defense + Data-Driven​
Breaks through traditional passive protection models by establishing a closed-loop system of "Detection-Evaluation-Warning-Optimization." Achieves precise protection through periodic inspections and dynamic risk assessments, reducing lightning strike incidents by over 40%.

​II. Comprehensive Lightning Protection Facility Inspection System​

1. ​Three-Tier Inspection Mechanism​
• Initial Inspection (New/Retrofit Projects):
• Scans coverage density of air termination systems (rods/straps/meshes).
• Detects loose connections via infrared thermography.
• Annual Inspection (Mandatory):
• Grounding system tests: Dynamic soil resistivity monitoring + 3D imaging of grounding impedance.
• SPD (Surge Protective Device) performance tests: Insulation resistance test + discharge counter verification.
• Special Inspection (Post-Thunderstorm/Fault Occurrence):
• Replays lightning current paths via lightning positioning systems.
• Conducts targeted impulse grounding resistance tests.
2. ​Smart Inspection Tools​
• Drone aerial photography for physical condition analysis of air terminals.
• Smart grounding resistance tester (±2% accuracy).
• High-frequency current probes capturing SPD microsecond-level responses.

​III. Dynamic Risk Assessment Model​
Developed LEAP-Risk™ Assessment Matrix (Lightning Exposure Assessment Program):

Risk Score = 0.3 × Historical Strike Frequency + 0.2 × Equipment Sensitivity 

            + 0.4 × Protection Device Integrity + 0.1 × Electromagnetic Environment Complexity 

Note: Outputs risk levels (Red/Orange/Yellow/Blue) to drive protection strategy adjustments.

​IV. Data Value Transformation​

1. ​Digital Twin Management Platform​
• Integrates BIM models for visualized inspection results.
• Auto-generates Lightning Facility Health Report, including:
• Ground grid corrosion rate predictions,
• SPD remaining lifespan assessments,
• Air terminal protection angle deviation alerts.
2. ​Risk Response Decision Support​
   | Risk Level | Protection Reinforcement Focus | Inspection Interval Compression Factor |
   |------------|-------------------------------|----------------------------------------|
   | Red | Install early streamer emission systems | 30 days/cycle |
   | Orange | Upgrade to Class III SPD protection | 90 days/cycle |
   | Yellow | Supplement equipotential bonding | 180 days/cycle |

​Solution Value​

1. ​Risk Visualization: ≥65% reduction in annual lightning disaster economic losses.
2. ​Smart O&M: 50% lower manual inspection costs + 3x faster response speed.
3. ​Precision Protection: Critical equipment lightning withstand capacity elevated to 200kA (IEC 62305 standard).

Case Study: A data center implementing this solution achieved 92% SPD failure prediction accuracy, reduced lightning-induced downtime incidents to zero, and obtained TÜV Rheinland Smart Lightning Protection Certification.