What is the purpose of the height of the hatch cover and threshold of the ship?

Avoid seawater splashing or waves invading the cabin under bad sea conditions. The height of the hatch cover and threshold of the ship is required to be 600mm, which is formulated according to the international maritime safety standards. The height of hatch cover and threshold plays an important role in the structural strength, waterproof performance and stability of the hull, so as to avoid seawater splashing or waves invading the cabin in bad sea conditions and ensure the safety of crew and passengers. Ships, the general term for all kinds of ships, refer to vehicles that can sail or berth in water areas for transportation or operation, and have different technical performance, equipment and structural types according to different use requirements.