MEK Classification Societies3

DME/MECC/ Marine Engineering Knowledge/ Jan 2007 /RB Shipping History & Business: Classification Society

1 1

To Be A World Class Maritime Academy


• Learning Objective: Learning Objective: Know the role of Know the role of merchant navy in supporting international merchant navy in supporting international trade and commerce, development of ships trade and commerce, development of ships and shipping lines, organization of ship and and shipping lines, organization of ship and duties of engineersduties of engineers

Specific Objectives:Specific Objectives:

• Explain the role of Classification Societies in ship Explain the role of Classification Societies in ship runningrunning

• List the Classification Societies their main functionsList the Classification Societies their main functions

• Explain what a ship’s Survey isExplain what a ship’s Survey is


2 2



CLASSIFICATION SOCIETIES

• 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.

• The class is granted generally for a term of 5 years during which it’s validity is subject to compulsory periodical surveys


3 3



What is CLASS ?

• It defines technical and safety standards of a ship, which reflects the risk of insuring a ship


4 4



Reasons to CLASS a ship• Determination of Fitness• Meet Requirement of jurisdictions• Possible lower insurance premiums• Indicates due negligence• Indicates proper maintenance in

performed• Assures that capital investment is

protected• Owner satisfaction


5 5



Classification enables..• The insurers to assess the premium relative to

the ship (hull insurance) and that relative to the cargo (cargo insurance)

• Hence, the owner to find an insurer who accepts to cover the risk incurred by the ship

• Then, the owner to charter his ship• The charterer to select advisedly the ship

whom he will entrust with his cargo• A future owner to assess the quality of the ship

prior to the purchase• The flag authorities to trust the ship and,

therefore, to register her into their fleet


6 6



What is a Classification Society?

• 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


7 7



Role of Classification Societies• To assign a Class

notation• Maintenance of class• Relevant research

work• Statutory surveys

(marine administration)

• Charter surveys• Profitability advice (to

owner)

• Development of computer software

• Set up worldwide networks

• Carry out surveys• Certification• Emergency technical

services


8 8



Classification Responsibilities

• 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

• Through its classification survey procedure it is the intent of the society to prevent vessel from falling into a substandard condition.


9 9



• Lloyd's Register (LR)

• American Bureau of Shipping (ABS)

• Bureau Veritas (BV)

• Det Norske Veritas (DNV)

• Registro Italiano Navale (RINA)

• Class NK Nippon Kaiji Kyokai (NK)

• Germanischer Lloyd (GL)


10 10



• Russian Maritime Register of Shipping (RS)

• China Classification Society (CCS)

• Türk Loydu Turkish Register of Shipping (TL)

• Indian Register of Shipping (IRS)

• Polski Rejestr Statków (PRS)

• Korean Register of Shipping (KR)

• Hellenic Register of Shipping (HRS)


11 11



Survey Areas: 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

Tra

nsve

rse

stre

ngth

& f

atig

ue

of lo

ngit

udin

al f

ram

e


12 12



First year survey after construction

• Deck features and integrity

• Overboard discharge arrangement

• Vent piping• Bilge level detection

(UMS)• Anchoring / mooring

equipment• Water-tight doors and

bulkhead penetrations

• Steering test• Emergency escape

routes• Bilge pumping system• General conditions –

hull and machinery• Satutory surveys• Surveys of continuous

survey items


13 13



• Testing of tanks (FO, LO, FW & DB tank)- Pressure test- Internal condition- Stagger (tankers)- Transverse webs (cargo tank)

* Can be done in a float condition

• Annual surveys• Statutory surveys• Continuous surveys• Hull gauging –

where necessary

Ten years survey after construction


14 14



Summary

• What is Classification?• Why ships are classed?• Significance in ship running• What is a Survey?

MEK Classification Societies3

Documents

Transcript of MEK Classification Societies3