CCS issues Rule Change Notice for Sea-Going Steel Ships

China Classification Society (CCS) has issued Rule Change Notice No. 1 for the Rules for Classification of Sea-Going Steel Ships, effective January 1, 2025. This notice introduces updates across multiple parts of the rules, covering critical areas of ship classification and safety standards.

Key Changes by Section:

Part Two: Hull

• Chapter 2: Updates to hull structures, including Appendix 5, which addresses the buckling strength assessment of ship structural elements.
• Chapter 3: Changes to equipment and outfits, with Appendix 1 providing guidelines for calculating bending moment and shear force distribution.

Part Three: Machinery Installations

• Chapter 1: General provisions for machinery systems.
• Chapter 2: Updates to pumping and piping systems, focusing on pipe connections, heat treatment, and non-destructive testing. Section 7 includes revised testing protocols, while Appendix 3 introduces the type approval process for mechanical joints.
• Chapter 4: Requirements for machinery piping systems, including using crude oil or slops as fuel in tanker boilers.
• Chapter 9:Diesel engine standards, particularly safety measures for low-pressure gas fuel engines and starting arrangements.
• Chapter 11: Updates on shafting and propellers, focusing on shaft transmission units.

Part Four: Electrical Installations

• Appendix 2: Revised type approval procedures for plastic cable trays and protective casings.

Part Six: Fire Protection, Detection, and Extinction

• Chapter 3: Enhanced fire safety