Fireproof trough cable tray is an important flame-retardant protective wiring equipment in building electromechanical engineering. It is made of enclosed steel plate structure and professional fireproof coating technology, which meets the construction standards of building electrical fire protection. It is widely used in key fire protection scenarios such as high-rise buildings, underground engineering, large shopping malls, industrial workshops, etc. The enclosed tank structure combined with fire-resistant insulation layer can effectively isolate high temperatures, block the spread of fire, reduce the probability of cables being invaded by open flames, maintain basic smoothness of emergency power supply and communication lines in fire scenarios, and improve the safety and stability of building electricity. The surface protective coating of the product has solid adhesion, stable temperature resistance and corrosion resistance, and is suitable for long-term indoor engineering use. This bridge has a regular structure, rich specifications, strong installation adaptability, and is compatible with conventional mechanical and electrical construction processes. The enclosed wiring method is clean and standardized, making it easy for daily inspections and line maintenance upgrades. With good fire protection performance and engineering adaptability, it has become a commonly used supporting profile for fire electromechanical projects.