Lianhe branch line of Erguang Expressway
2025-03-31
In recent years, with the continuous improvement of China's transportation infrastructure, expressways have become vital links connecting regional economic development. As one of China's major north-south arterial routes, the Er-Guang Expressway's Lianzhou-Hexian branch project presents exceptionally high demands for equipment safety, stability and durability due to its unique geographical environment and climatic conditions. Meanwhile, this branch route connecting Lianshan to Hezhou plays a significant role in promoting economic interconnectivity and coordinated development between Guangdong and Guangxi provinces.
In this critical infrastructure project, Done Power has provided robust support for the lighting systems of Yue-Gui Tunnel and Tangwu Tunnel along the Lianzhou-Hexian branch with its high-quality products and services, contributing to tunnel traffic safety and regional economic development. Located in mountainous northern Guangdong, the branch route faces complex environmental challenges including prolonged rainy seasons, heavy precipitation, and low winter temperatures. Tangwu Tunnel, with its 256-meter left bore and 239-meter right bore, traverses highly eroded terrain prone to geological hazards. The 1,451-meter Yue-Gui Tunnel (including 499 meters in Guangdong) also presented substantial challenges. Done Power's MAS series LED drivers successfully addressed these geological and climatic challenges, delivering stable and efficient power solutions for tunnel lighting.
The MAS series road lighting LED drivers feature a wide input voltage range of 200-277V with automatic derating function at 165±15V input, ensuring stable luminaire operation despite grid voltage fluctuations through power reduction during low-voltage conditions. With IP67 waterproof rating and 6/15KV lightning surge protection, the series withstands harsh outdoor environments to provide durable power support for tunnel lighting.
Notably, the MAS series achieves high PF value and low harmonic distortion, enhancing energy efficiency while reducing grid pollution - aligning with sustainable development principles. The products have obtained multiple international certifications including 3C, TUV, CE, CB, SAA and ENEC, demonstrating Done Power's globally recognized quality and technical excellence.
The series supports various functions including offline programming, triple-mode dimming (0-10V/PWM/resistance), and positive/negative logic dimming to meet tunnel lighting requirements. The negative logic dimming proves particularly valuable - when dimming line shorts or other failures occur, it maintains maximum brightness to ensure driving safety while enabling scheduled dimming for energy-saving adaptive lighting.
As a specialist in lighting power solutions, Done Power adheres to its "customer-centric, value-creator-oriented" philosophy to deliver reliable, high-performance LED drivers. The successful application of MAS series in Yue-Gui and Tangwu Tunnels marks another achievement in infrastructure projects.
Moving forward, Done Power will continue addressing infrastructure development needs through technological innovation and premium solutions, supporting China's tunnel lighting and high-power expressway lighting applications to facilitate regional economic growth and sustainable development.