ICE%2D05

Class notation for vessels breaking ice of 0.5 m level thickness.

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Purpose

The notation verifies that the vessel has sufficient strength and equipment for continuous operation in the specified ice conditions of the Arctic, sub-Arctic and/or Antarctic regions without icebreaker assistance.

Benefits

DNV’s long experience will give you a vessel which can operate without assistance and without being deformed by extreme ice conditions and that can operate unassisted in ice-infested waters in sub-Arctic, Arctic and/or Antarctic regions.

Features

The rules for vessels for Arctic service vessels are intended to be applied to vessels operating unassisted in winter ice with pressure ridges as found in the Arctic, sub-Arctic and/or Antarctic regions. Ramming is not anticipated.

The following matters are covered by the classification:

  • Materials in structures exposed to low ambient air temperatures

  • Subdivision, intact and damage stability

  • Hull girder longitudinal and transverse strength

  • Local hull structures exposed to ice loads

  • Rudder and steering gear

  • Propellers and propulsion machinery

  • Sea suctions for cooling water

  • Air starting systems

  • Additional requirements relating to rudders, pods and hull appendages with respect to local dimensions and the effect of direct ice loads

Process

Newbuilding plan approval and site survey in accordance with relevant parts of the Rules. Approval is carried out at responsible approval centre. Site survey is carried out at the building yard and its suppliers.