RULES FOR CLASSIFICATION OF SEA-GOING STEEL SHIPS 2018 released for comments.
The main revisions are as follows:
Inspection: Incorporate the technical requirements for the new IACS; include the description of the seaworthiness of the ship in the IACS charter; distinguish the class-level symbols of the ships that are classified in the construction of the adjacent ship, and specify the double-class or double ship The inspection requirements for the initial classification of the ship in the construction; the revision of the additional signs in conjunction with the newly issued guidelines of the company; the removal of the repetitive clauses on the consistency of the completed drawings and the actual ship; the revision of the completed drawings and materials to be saved by NU; “Additional requirements for inspection of hull and equipment of ordinary dry cargo ships” shall only apply to the structure of the single side cargo area; new measures for closeup inspection, surveyors approaching the structure; special inspection requirements for new livestock transport vessels; When the shipbuilding inspection is granted to the PMS additional mark, the standards to be implemented shall be referred to.
Hull section: Incorporate the technical requirements for the new IACS; the requirements for the blunt edge are revised to meet the requirements of large container ships, and the requirements for the height of the throat in the node design are clarified; the length limit of the 0.075L outer panel is adjusted. The requirements are conducive to the development of large ships; the technical requirements for dredgers, semi-submersible ships and sand boats have been revised; according to the latest research results, the direct calculation method of container ships and the requirements for catamaran have been revised; Chapter, the requirements for the film type LNG carrier ship are included in the specifications.
Marine engineering: incorporating the new technical requirements of IACS; adding waste gas boilers or economizers to prevent soot accumulation, hot oil heater hot oil leak detection and safety protection, multi-master propulsion electronically controlled diesel fuel pump and hydraulic oil pressure pump redundancy, In the calculation of gear strength, the value of the main propulsion motor application coefficient, less than 500 tons of passenger bilge bottom water emergency suction port requirements.
Electrical articles: Improve the technical requirements of various types of shore power equipment with rated voltage of 1kV and below; add technical requirements for shore power equipment with rated voltage above 1kV; for high voltage shore power supply without applying for high voltage shore power additional sign (AMPS) The ship of the installation has made provisions; the alarm and release of the fixed fire-extinguishing system of the new machinery space cannot automatically cut off the provisions of the cabin fan and oil pump; the PVC insulation material is removed from the cable insulation; the main generator set is added to the main switchboard. Inter-cable cable laying requirements; clarification of motor and transformer temperature rise test.
Fire articles: The number requirements for cargo ship fire pumps have been further clarified; the diameter requirements for cargo ship fire mains have been revised; the release of fixed gas fire extinguishing systems and the diameter of carbon dioxide pipes have been revised.
Other Supplementary Provisions: The technical requirements for livestock carriers have been revised.
CSR: Incorporate the technical requirements for the new IACS; add new supplements (such as pillars, etc.); clarify some of the terms based on feedback.
Limited Shipping Area Ships: For the convenience of use, the 10th "Limited Ships in Limited Areas" has been added, and the relevant requirements for limited navigation in Parts 1 - 8 have been included, and the requirements for limited navigation of catamaran have been added.
any comments please contact:classnu@nugroup.org