Divers should wear the GF-Ⅱ type ventilated heavy-duty gear and be equipped with...

Appropriate auxiliary equipment, divers are equipped with professional ropes for ascending and descending, and use professional walkie-talkies during operations to maintain communication and ensure safety.

12. Conduct H2S and carbon monoxide testing throughout the construction process. The diving team must strictly adhere to the responsibilities of diving positions and firmly implement the eight no-go rules for diving safety operations.

3. Divers must be certified to perform underwater operations and must undergo a safety briefing before commencing work, ensuring they are well-informed. 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 a thorough inspection before submersion; it must pass inspection before being used. The construction site should have emergency air supply and emergency equipment available.