The core advantage of this product is its high-level explosion-proof performance, with an Ex d IIB T4 Gb protection grade, which can be used in Zone 1 explosive gas environments and Zone 21 dust explosive environments, meeting the safety requirements of tunnels and petrochemical facilities. It integrates AI traffic flow detection, automatically adjusting signal timing to reduce vehicle queuing in tunnels, improving ventilation efficiency and reducing exhaust gas accumulation. The explosion-proof LED display screen provides clear signal status and system parameter display in dark tunnel environments, with a high brightness of 1500cd/㎡ to ensure visibility for drivers. It supports 24 phases, including tunnel entrance priority, emergency vehicle priority, and pedestrian evacuation phases, meeting the complex traffic control needs of tunnel intersections. The cast aluminum explosion-proof shell is resistant to impact and corrosion, with a service life of over 15 years. Additionally, it has a local manual control function, allowing maintenance personnel to adjust signals on-site in case of system failure, ensuring continuous traffic control.
This explosion-proof traffic signal controller has a robust cast aluminum shell with dimensions of 480mm (L) × 380mm (W) × 250mm (H) and a net weight of 22kg, suitable for installation in dedicated explosion-proof control cabinets in tunnels. It operates in a temperature range of -30℃ to +65℃ and humidity range of 5% to 95% (non-condensing), adapting to the closed environment of tunnels. The power supply uses an AC220V explosion-proof power source, with a power consumption of less than 60W, ensuring safe power supply in explosive environments. It has 24 independent phase output channels, each supporting a maximum load of 12A, compatible with explosion-proof LED traffic signal lamps. The fiber optic communication interface provides high-speed, interference-free data transmission, connecting with tunnel monitoring systems and air quality sensors to achieve integrated control. The explosion-proof LED display screen has a resolution of 800×480, with a touch operation function that complies with explosion-proof standards. It complies with ATEX and IECEx international explosion-proof standards, as well as GB3836 national explosion-proof standards, ensuring product safety and reliability.
This explosion-proof traffic signal controller is mainly used in highway tunnels, railway tunnels, subway tunnels, and petrochemical plant tunnel intersections where flammable gases or dust may exist. In highway tunnels, it can automatically adjust signal timing based on real-time traffic flow, reducing vehicle congestion and improving ventilation efficiency, thereby reducing the risk of exhaust gas accumulation and fire. For petrochemical plant tunnels, its explosion-proof performance prevents spark ignition of flammable gases, ensuring safe passage of transport vehicles and personnel. In railway tunnels, it supports train priority phase control, ensuring smooth passage of trains and reducing waiting time for road vehicles. Additionally, it can be used in emergency evacuation scenarios, activating pedestrian evacuation phases to guide people to safe exits quickly. Tunnel management departments can use the fiber optic communication function to remotely monitor and control the controller, reducing on-site maintenance risks in explosive environments.
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