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

Appropriate auxiliary equipment includes professional ropes for divers' ascents and descents, with a professional walkie-talkie used during operations to maintain communication and ensure safety.

2. Continuous H2S and carbon monoxide testing is conducted throughout the construction process. The diving team must strictly adhere to the responsibility system for divers' positions and strictly follow the eight safety rules for diving 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, as issued by the Water Authority and Drainage Department.

4. Diving equipment must be rigorously inspected before submersion; only upon passing the inspection can it be used. The construction site should be equipped with emergency air sources and emergency equipment.