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

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.