大油检查对船级中有冰区附加标志船舶的特殊要求

Vessels holding an Ice Class notation must be constructed to meet the requirements specified by the Classification Society and the officers and ratings provided with suitable clothing and appropriate training. Subject to the Ice Class notation to which the vessel was constructed, vessels will be equipped to maintain temperature within the accommodation, protect the hull, deck machinery, pipelines, ventilators, air inlets, sea inlets and ballast system against freezing. Means to receive and display ice charts and ice navigation information should be installed. Protection to prevent the wheelhouse windows from freezing should be provided and if the wheelhouse is not totally enclosed, protected locations on the bridge wings and searchlights on each bridge wing should also be provided. If the vessel holds an Ice notation, inspectors should assess these provisions and provide comments in the Additional comments section at the end of this chapter. Chapter 13. Ice Operations

This section is to be completed if the vessel has an Ice Class Notation or has a valid winterisation certificate. The OCIMF publication 'The Use of Large Tankers in Seasonal First Year Ice and Severe Sub-Zero conditions' provides guidance on the safe operation of tankers in areas affected by seasonal first year ice The IMO Guidelines for Ships Operating In polar Waters sets out recommendations that address ship structure, lifesaving and fire-fighting equipment, operational issues and environmental considerations. These voluntary guidelines are intended for ships constructed after 1 Jan 2011. Existing ships are encourages to comply with the Code as far as reasonable and practical. The OCIMF Briefing Paper for chartering and Vetting Groups titled “The Use of Large Tankers in Seasonal First-Year Ice or Severe Sub-Zero Conditions” contains comprehensive guidance relating to the use of tankers >50,000dwt with no, or low ice class that are likely to encounter first-year ice.

13.1 Are procedures available for navigation and operations in ice conditions and/or low temperatures (down to -25ºC)? 13.2 Does the vessel have a valid Ice Certificate of Adequate Engine Power on board? 13.3 Does the vessel have classification notation for operations in cold climates (commonly referred to as a „de-ice notation‟)? 13.4 Are satisfactory means provided to prevent the icing up of air pipes to settling and service tanks required for the operation of the main propulsion plant and essential auxiliaries?

13.5 Are satisfactory precautions taken to prevent the fire main from freezing? 13.6 Are satisfactory precautions taken to protect deck piping from the risk of freezing?

13.7 Are satisfactory means provided to prevent the icing up of cargo tank primary and secondary venting arrangements? 13.8 Is satisfactory protection provided for the crane operator against wind chill? 13.9 Is a heating connection fitted to at least one sea water inlet?

13.10 Are systems in place to ensure that the ballast system and drenching systems operate at sea temperatures of -2ºC and air temperatures of -25ºC?

13.11 Are satisfactory means in place to prevent icing of the wheelhouse windows? 13.12 Are satisfactory means in place to protect personnel on the bridge wings? 13.13 Is an operational Infra Red camera fitted in the bow for ice observation? 13.14 Are operational searchlights provided, mounted on each bridge wing and at the bow?

13.15 Are radars fitted that are of a type classed as being suitable for sub zero temperatures and having a frequency appropriate for operating in severe ice conditions?

13.16 Are Heating Systems provided for Air Driven whistles and Fog Horns?

13.17 Are systems in place for the routine receipt of navigational, meteorological and environmental data, including ice data and ice charts?

13.18 Are adequate heating systems provided for accommodation spaces? 13.19 Are satisfactory measures taken to ensure the proper closure of accommodation air intakes by preventing their freezing and/or snow blockage?

13.20 Is appropriate cold weather PPE provided for all the ship's compliment? 13.21 Has training specifically addressing navigation in ice been provided to appropriate members of the vessel‟s complement?

13.22 Has training addressing operations in cold temperatures been provided to the vessel‟s complement?