2 classification societies

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2 classification societies

  1. 1. By Dr. Oladokun Sulaiman Olanrewaju CLASSIFICATION SOCIETIES
  2. 2. <ul><li>The term ‘Classification’ comes from the fact that we sort out ships categories according to the level of confidence we assign them, further to the results of the assessment carried out thereon. </li></ul><ul><li>The class is granted generally for a term of 5 years during which it’s validity is subject to compulsory periodical surveys </li></ul>What is CLASS ?
  3. 3. What is CLASS ? <ul><li>It defines technical and safety standards of a ship, which reflects the risk of insuring a ship </li></ul>
  4. 4. Reason to CLASS a ship <ul><li>Determination of Fitness </li></ul><ul><li>Meet Requirement of jurisdictions </li></ul><ul><li>Possible lower insurance premiums </li></ul><ul><li>Indicates due negligence </li></ul><ul><li>Indicates proper maintenance in performed </li></ul><ul><li>Assures that capital investment is protected </li></ul><ul><li>Owner satisfaction </li></ul>
  5. 5. Classification of the ship enables :- <ul><li>The insurers to assess the premium relative to the ship (hull insurance) and that relative to the cargo (cargo insurance) </li></ul><ul><li>Hence, the owner to find an insurer who accepts to cover the risk incurred by the ship </li></ul><ul><li>Then, the owner to charter his ship </li></ul><ul><li>The charterer to select advisedly the ship whom he will entrust with his cargo </li></ul><ul><li>A future owner to assess the quality of the ship prior to the purchase </li></ul><ul><li>The flag authorities to trust the ship and, therefore, to register her into their fleet </li></ul>
  6. 6. What is CLASSIFICATION SOCIETY <ul><li>A body that ensures that class of a ship, however, with increasing demands from all quarters of the industry and the continuous development of ship technology, the societies have changed in form as a consequences of accepting the additional responsibilities </li></ul>
  7. 7. Present Role of Classification Societies <ul><li>To assign a Class notation </li></ul><ul><li>Maintenance of class </li></ul><ul><li>Relevant research work </li></ul><ul><li>Statutory surveys (marine administration) </li></ul><ul><li>Charter surveys </li></ul><ul><li>Profitability advice (to owner) </li></ul><ul><li>Development of computer software </li></ul><ul><li>Set up worldwide networks </li></ul><ul><li>Carry out surveys </li></ul><ul><li>Certification </li></ul><ul><li>Emergency technical services </li></ul>
  8. 8. Classification Responsibilities <ul><li>To ensure that merchant ships and marine structure presented to it comply with rules that the society had established for design, construction and periodic survey </li></ul><ul><li>Trough it classification survey procedure it is the intent of the society to prevent vessel from falling into a substandard condition. </li></ul>
  9. 9. Major Classification Societies in the world <ul><li>Lloyd's Register (LR) </li></ul><ul><li>American Bureau of Shipping (ABS) </li></ul><ul><li>Bureau Veritas (BV) </li></ul><ul><li>Det Norske Veritas (DNV) </li></ul><ul><li>Registro Italiano Navale (RINA) </li></ul><ul><li>Class NK Nippon Kaiji Kyokai (NK) </li></ul><ul><li>Germanischer Lloyd (GL) </li></ul><ul><li>Russian Maritime Register of Shipping ( RS) </li></ul><ul><li>China Classification Society (CCS) </li></ul><ul><li>Türk Loydu Turkish Register of Shipping (TL) </li></ul><ul><li>Indian Register of Shipping (IRS) </li></ul><ul><li>Polski Rejestr Statków (PRS) </li></ul><ul><li>Korean Register of Shipping (KR) </li></ul><ul><li>Hellenic Register of Shipping (HRS) </li></ul>                          
  10. 10. Surveys Areas for Container Ships LWL Bow flare impact pressure High stress at hatch corners in forward hold Watertight bulkheads Large distortion of hatch opening for hatch cover design High stress at hatch corners forward of machinery room Cross deck structure Hatch brackets Connection of cross deck beam to longitudinal girder Connection of cross deck beam to upper deck Pillar bulkhead Bottom slamming impact pressure Transverse strength & fatigue of longitudinal frame
  11. 11. One year survey after construction <ul><li>Deck features and integrity </li></ul><ul><li>Overboard discharge arrangement </li></ul><ul><li>Vent piping </li></ul><ul><li>Bilge level detection (UMS) </li></ul><ul><li>Anchoring / mooring equipment </li></ul><ul><li>Water-tight doors and bulkhead penetrations </li></ul><ul><li>Steering test </li></ul><ul><li>Emergency escape routes </li></ul><ul><li>Bilge pumping system </li></ul><ul><li>General conditions – hull and machinery </li></ul><ul><li>Satutory surveys </li></ul><ul><li>Surveys of continuous survey items </li></ul>
  12. 12. <ul><li>Testing of tanks (FO, LO, FW & DB tank) </li></ul><ul><li>- Pressure test </li></ul><ul><li>- Internal condition </li></ul><ul><li>- Stagger (tankers) </li></ul><ul><li>- Transverse webs </li></ul><ul><li> (cargo tank) </li></ul><ul><li>* Can be done in a float condition </li></ul><ul><li>Annual surveys </li></ul><ul><li>Statutory surveys </li></ul><ul><li>Continuous surveys </li></ul><ul><li>Hull gauging – where necessary </li></ul>Ten years survey after construction

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