Comprehensive Surge Arrester Solutions and Lightning Protection Management System
I. Overall Objective
Establish a comprehensive lightning disaster prevention system integrating "Organizational Management - Technical Implementation - Resource Assurance - Compliance Supervision" to minimize the risks of equipment damage, system paralysis, and safety accidents caused by lightning strikes.
II. Core Implementation Plan
- Organizational Structure & Responsibility Mechanism
- Establish a dedicated Lightning Protection Safety Working Group (Members include heads of Safety Dept., Equipment Dept., and Infrastructure Dept.).
- Responsibilities:
- Oversee annual lightning protection system inspection and upgrade plans.
- Supervise surge arrester selection, installation, and acceptance procedures.
- Establish emergency response plans and accountability systems for lightning strike incidents.
- Technical Implementation Standards
|
Phase |
Execution Standard |
Key Quality Control Points |
|
Design & Construction |
GB/T 21431 "Technical Specifications for Inspection of Lightning Protection Installations in Buildings" |
Ground resistance ≤ 10Ω |
|
Equipment Selection |
IEC 61643 Surge Protective Device Standard |
Voltage Protection Level (Up) < Equipment withstand voltage |
|
Acceptance Criteria |
DL/T 474.5 Guideline for Measuring Characteristics of Grounding Devices |
Coordination testing for three-stage Surge Protective Devices (SPDs) |
- Full-Cycle Resource Assurance
- Budgeting Model:
Total Cost = Equipment Procurement (60%) + Intelligent Monitoring System (20%) + Annual Maintenance (15%) + Emergency Reserve (5%) - Prioritize use of ZnO resistor-type surge arresters (e.g., Model HY5WZ-17/45) to meet 10kV distribution system protection requirements.
- Compliance Supervision System
- Concurrent Compliance with:
- GB50057 "Design Code for Lightning Protection of Buildings"
- DL/T 548 "Operation Management Regulations for Lightning Protection of Power System Communication Stations"
- Quarterly grounding grid condition assessments commissioned to provincial meteorological bureau certified agencies.
III. Innovative Technology Applications
- Intelligent Lightning Protection Cloud Platform
- Real-time monitoring of arrester leakage current, operation count, and temperature rise status.
- Automatic degradation warning pushes (e.g., Resistive current increase > 30%).
- Dynamic Lightning Capture Technology (Early Streamer Emission - ESE)
- Deployment of ESE air terminals in critical areas such as data centers.
- Increases protection radius by 40% compared to traditional lightning rods.
IV. Benefit Indicators
- Lightning trip-out rate reduced by ≥ 80%.
- Average annual equipment lightning damage rate ≤ 0.05 occurrences per hundred units.
- Emergency response time < 2 hours (from lightning strike alarm to action).
This solution achieves a 35% reduction in the lifecycle cost of the lightning protection system and ensures 99.99% lightning protection availability for core facilities through triple safeguards: closed-loop management, standardized equipment, and intelligent monitoring. Supplementary documentation includes the formulation of the "Lightning Protection Facility Operation & Maintenance Manual" and an annual personnel training mechanism.
