Fire protection system

The tunnel is equipped with complete fire-fighting facilities, including fire detectors, control equipment for fire protection, fire alarms, fire hydrants, fire extinguishers, pressurization facilities, water supply facilities, dedicated fire-fighting connecting cables and pipelines, fittings (and accessories), as well as mounting brackets, embedded auxiliary fasteners, embedded pipelines, exposed cables, and pipeline protection measures for fire-fighting facilities. They are mainly used for transmitting fire alarm signals caused by spontaneous combustion of a vehicle, accidents, or environmental factors, and for on-site handling.