바로가기 메뉴
본문 바로가기
주메뉴 바로가기
  • 홈으로
  • Our Services
  • Classification
  • During Construction
  • Introduction
Introduction
    • Classification Survey during Construction
      For a ship requiring Classification Survey during Construction, the construction, materials, scantlings and workmanship of the hull, equipment and machinery are to be examined in detail in order to ascertain that they meet the appropriate requirements of the Rules.
    • Approval of plans
      For a ship requiring Classification Survey during Construction, the plans and documents showing the details of the construction, materials, scantlings and particulars of the hull, equipment and machinery are to be submitted in triplicate and approved before the work is commenced. The same applies also to the cases of any subsequent modifications to the approved drawings or documents.
    • Materials and equipment
      All materials used for a ship requiring Classification Survey during Construction are to be manufactured under approved method or under alternative process considered equivalent to the approved method and are to be adequate to the relevant requirements of the Rules. The Society may request the relevant documents such as certificate of materials or equipment, etc. for the confirmation of the materials or equipment which are used.
    • Machinery installation
      Main engines, shafting arrangement, boilers, pressure vessels, electrical equipment, essential auxiliary machinery, and piping arrangements to be installed on a ship intended for classification are to be surveyed during construction. Shop trials are to be carried out on completion under a same condition as installed on-board ship or a similar condition as far as practicable. Various tests on any special part amongst the automatic or remote control systems and measuring devices considered necessary by the Society may be requested at the manufacturing sites.
    • Workmanship
      For Classification Survey of a ship, the materials, workmanship and arrangements are to be surveyed under the supervision of the Surveyor from the commencement of the work until the completion of the ship. When the machinery is constructed under Classification Survey, this survey is to be related to the period from the commencement of the work until the final test under working conditions.
      Any item found not to be in accordance with the Rules or the approved plans, or any material, workmanship or arrangement found to be unsatisfactory are to be rectified.
    • Tests
      n the Classification Survey during Construction, hydrostatic, watertight and performance tests are to be carried out in accordance with the relevant part of the Rules. Also the control systems and measuring device after installation are to receive the necessary tests, as deemed necessary by the Society.
    • Stability experiments
      In the Classification Survey during Construction for passenger ships and ships of 24 and above in length other than passenger ships, stability experiments are to be carried out upon completion of the ship. A final stability information booklet adequate for the service intended and prepared on the basis of the stability particulars determined by the results of stability experiments, is to be approved by the Society and supplied to the master. However, a preliminary stability information booklet approved by the Society in lieu of a final stability information booklet may be provided on-board for a specific period
    • Trials
      Trials are to be carried out for all equipment, machinery and electrical equipment under working conditions after completion of the ship in order to ascertain their performances. In the sea trials, speed test, astern test, steering test, emergency steering test and turning test are to be carried out. In addition, the operating conditions of machinery and other behaviors of the ship during the trial are to be examined.
Date of contract for construction
  • The date of contract for construction of a vessel is the date on which the contract to build the vessel is signed between the prospective Owner and the shipbuilder. This date and the construction numbers(i.e. hull numbers) of all the vessels included in the contract are to be declared to the Society by the party applying for the assignment of class to a newbuilding.
  • The date of contract for construction of a series of vessels, including specified optional vessels for which the option is ultimately exercised, is the date on which the contract to build the series is signed between the prospective Owner and the shipbuilder.