Project Background

Guanping Expressway (Guanyang-Pingle Expressway) is a key section of the National Expressway Network G59 (Hohhot-Beihai Expressway), with a total length of 136.68 km (including 58.88 km in the Guanyang section). As a Key Project of Guangxi Zhuang Autonomous Region, it undertakes the function of a regional transportation hub. This project provides core high-voltage and low-voltage power distribution equipment for Section №1 of the mechanical and electrical engineering, ensuring power safety for key facilities such as tunnels, toll stations, and service areas.

Customer Pain Points

Zero Power Interruption Requirement:

Tunnel lighting, ventilation, and monitoring systems need to operate 24/7 without interruption; power outages may cause traffic accidents.

Stringent Environmental Adaptability:

The high-humidity and salt-spray environment in mountainous areas is highly corrosive to equipment, requiring long-term protection.

Efficient O&M for Dispersed Stations:

Tunnels and toll stations are widely distributed; equipment needs to support rapid fault isolation and modular replacement.

High Intensity Utilization of Space Resources:

The space of tunnel power distribution rooms is limited, requiring a compact equipment layout solution.

Compatibility with Intelligent Management:

Needs to meet the remote monitoring interface requirements of the expressway mechanical and electrical system.

Solution Proposition

KYN28-12 High-Voltage Cabinet: Core Guarantee for Safety and Reliability

Military-Grade Protective Structure:

The cabinet body is made of imported aluminum-zinc coated steel plates, processed with FMS multi-fold edge technology, which significantly improves corrosion resistance and adapts to the hot and humid climate of Guangxi.

Five-Proof Interlocking + Pressure Relief Channel:

Dual mechanical and electrical interlocking completely prevents misoperation; the pressure relief channel ensures O&M safety, complying with the specifications for unattended scenarios.

Hot-Swappable Maintenance:

Equipped with ZN63A-12(VS1) vacuum circuit breakers; handcart units of the same specification can be freely interchanged, and a dedicated transport cart enables rapid replacement.

High-Density Wiring Capacity:

A single cabinet supports 9 single-core cables, meeting the multi-circuit power supply needs of tunnels.

SWMNS Low-Voltage Cabinet: Flexible and Efficient Power Distribution Hub

Modular Mixed-Installation Design:

Power feeding units and motor control units can be mixed and installed in the same cabinet, adapting to diverse loads such as fans, water pumps, and lighting, and optimizing space utilization.

Fully Assembled Rapid Deployment:

The profile structure supports efficient on-site assembly, ensuring compliance with the tight construction schedule of the expressway project.

Highly Compatible Intelligent Interface:

Reserved communication protocol interfaces enable seamless integration with the expressway mechanical and electrical monitoring system.

Enhanced Safety Protection:

Humanized design strengthens personal and equipment protection, meeting the high reliability requirements of infrastructure.

Customer Value

Power Supply Guarantee for Key Facilities:

High-reliability circuit breakers + five-proof system provide power support for the safe operation of tunnels.

Whole-Life Cycle Durability:

Aluminum-zinc coated steel plate cabinets and maintenance-free circuit breakers reduce equipment maintenance needs in the humid mountainous environment.

Improved O&M Efficiency:

The interchangeable handcart design shortens fault repair time, and modular low-voltage units simplify the maintenance process.

Optimized Space Adaptability:

Compact cabinet structure + high-density wiring capacity alleviate the space pressure of tunnel power distribution rooms.

Compatibility for Future Expansion:

Standardized design supports system expansion, meeting the long-term development needs of the expressway.