Photo: State Grid Taizhou Electric Power Company

On September 19, at the comprehensive automation renovation site of the 110kV Gushan Substation in Taizhou, East China’s Jiangsu Province, an integrated device for limited space detection and ventilation, independently developed by State Grid Taizhou Electric Power Company, was put into use, effectively enhancing work safety.

With the increasing number of construction projects, work sites involve a large amount of limited spaces such as cable pits and basements. Traditional ventilation and detection equipment adopt a split design, which is inconvenient to carry, cumbersome to operate, and has a single function.

Based on actual field work, State Grid Taizhou Electric Power Company independently developed the integrated device for limited space detection and ventilation over three years through market research and demand analysis, technological research and development, prototype trial production, testing and verification, and quality control.

The device adopts one-piece molding to ensure the integrity of the product and outdoor waterproof and dustproof performance. Its interior integrates multifunctional components such as a detector, exhaust fan, intelligent module, and power supply module, making it easy to carry and transfer. The device contains a spectral sensor that can dynamically monitor the air quality of the working environment and display relevant gas parameters in real-time on the main interface, eliminating the need for cumbersome manual detection.

Since its commissioning, the device has completed 31 limited space operations, reducing the average working time by 47 minutes and maintenance and repair costs by nearly 50,000 yuan. It comprehensively improves the efficiency of limited space operations and ensures the safety and economy of field operations.