Distributed Fiber-Optic Linear Heat Detection Fire Detector

The distributed fiber-optic linear heat detection system is a fire‑alarm device that operates on the principle of Raman scattering in optical fibers, enabling real-time monitoring of temperature variations along the length of the sensing fiber (cable). As one of the most advanced linear fire‑detection technologies available domestically and internationally, it offers advantages such as long measurement distances, no blind spots, and continuous real-time data acquisition. It is widely deployed in applications including subway tunnels, utility tunnels, cable trays, oil‑transport pipelines, coal‑conveying belts, oil and gas storage tanks, and data centers.

Cable-type linear heat detection fire detector

Cable-type linear heat‑sensing fire detectors, commonly known as "heat‑sensing cables," differ from conventional "point‑type smoke detectors" in that they do not monitor smoke at a single location. Instead, they continuously measure ambient temperature along the entire length of the cable route. These devices exhibit strong environmental adaptability and outstanding resistance to electromagnetic interference, delivering reliable performance in applications such as cable tunnels, mezzanines, transformers, coal‑conveying belts, and oil and gas storage tanks.

Suspended dry powder fire extinguishing system

In the fire‑protection sector, suspended ultra‑fine dry‑powder extinguishing systems have garnered significant attention thanks to their outstanding extinguishing performance and environmentally friendly characteristics. These systems come in a variety of types, including pressurized, non‑pressurized, temperature‑controlled, and electrically controlled models. Depending on the installation method, they can be classified as suspended or wall‑mounted; and based on the application environment, they are further tailored for specific settings, such as engine compartments, wind turbine nacelles, utility tunnels, and more.