Divers in underwater operations should wear the GF-Ⅱ type ventilated heavy-duty suit and be equipped with...

Corresponding auxiliary equipment includes professional ropes for divers' ascent and descent. During operations, a professional walkie-talkie is used to maintain communication between the diver and the surface to ensure safety.

12. Throughout the construction process, continuous testing and tracking of H2S and carbon monoxide levels are required. The diving team must strictly adhere to the responsibilities of diving positions and strictly enforce the eight no-go rules for diving safety operations.3. Divers must be certified before performing underwater operations. A safety and technical briefing must be conducted prior to construction, ensuring a clear understanding. The diving team must strictly adhere to the temporary regulations for safety management of operations in toxic and harmful gas environments issued by the Water Authority and Drainage Department.

4. Diving equipment must undergo rigorous pre-dive inspections and be deemed fit before entering the water. The construction site should have emergency air sources and emergency equipment available.