Chendu Metro Surge Protection Solution

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Surge Protection Solution for Chengdu Metro Line 4
Transportation

Metro Station.png


Overview


A metro station of Chendu Line 4 required a robust surge protection solution to safeguard its critical CCTV and communication equipment against frequent lightning-induced voltage surges. This project was part of the city's broader effort to enhance operational reliability and passenger safety by ensuring uninterrupted surveillance and communication services within metro environments.

During the tendering phase, the project integrator engaged Ourten for a detailed evaluation of surge protection devices. Following rigorous testing and performance comparisons, Ourten's surge protection solutions were recognized as the optimal choice.


Challenges


The integrator identified several key challenges:

  1. High Exposure to Lightning Strikes:
    Metro stations, particularly with outdoor and semi-open structures, were highly susceptible to lightning-induced voltage surges, jeopardizing critical security and communication infrastructure.

  2. Complex Underground and Elevated Infrastructure:
    The diversity in the station’s structural design—combining underground tunnels, elevated platforms, and open areas—required versatile and highly effective surge protection.

  3. Strict Operational Continuity Requirements:
    Installation had to be completed with minimal disruption to daily metro operations, ensuring passenger convenience and service reliability at all times.


Solution


After comprehensive comparative assessments and field tests, Ourten's Surge Protection Devices (SPDs) were selected based on the following strengths:

  1. Advanced Surge Protection Performance:
    Ourten SPDs provided robust protection levels, effectively mitigating lightning and transient voltage surges, significantly reducing risks of equipment failure.

  2. Easy Installation and Integration:
    Ourten's modular SPDs facilitated swift, minimally invasive installations, seamlessly integrating with the existing metro infrastructure without disrupting daily operations.

  3. Proven Reliability and Longevity:
    Extensive field deployments demonstrated superior durability, with devices consistently performing above industry standards, ensuring an extended service life of more than 6 years.


Results


By implementing Ourten's surge protection solution, the Chengdu metro station successfully addressed critical surge protection challenges. Key results achieved included:

  • Elimination of equipment failures due to lightning-induced surges, significantly increasing reliability.

  • Minimal operational disruption, completing installations rapidly and efficiently within tight timelines.

  • Highly positive feedback from metro authorities due to stable and reliable protection performance, achieving sustained operational safety and improved passenger satisfaction.


This project has set a benchmark in surge protection implementation within Chengdu's public transportation network, underscoring Ourten's industry-leading capabilities and expertise.