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Prigorodnoye Export Terminal Port Regulations Rev 01 speed a vessel may proceed in a given thickness of ice. In addition it will determine the distance the vessel is to be astern of the icebreaker escort, and will also determine the width of navigable curvature of the channel in turns the ice breaker is to make. The Ice certificate will also assess vessel suitability for operation in lower temperatures of Aniva Bay. 7.6 Certificate of Engine Power All tankers in winter are required to have a ‘Certificate of adequate engine power’ during the ice season. This confirms that the tanker can achieve a speed of at least 4 knots in ice thickness of 60 cms following in the lead created by ice breakers in the absence of ice pressure. The certificate is issued by an institute approved by the Russian authorities. 7.7 Propeller Tip Immersion All tankers are to have a propeller tip immersion of at least 70 cms. LNG carriers are to have a propeller that is the equivalent of the Russian ice class ‘LU2’. If this is not the case, there may be a requirement to increase the propeller tip immersion. The required immersion will form part of the Certificate of adequate engine power. 7.8 Winterisation Winterisation is the requirement that the vessel, during the winter period, from November to April, is able to operate in sub zero temperatures down to –25 o C, which may be experienced within Aniva Bay. Precautions include measures to ensure that the fire fighting equipment on deck is operational, in particular that the fire lines do not freeze, that the ballast space air ventilators do not freeze, and that the mooring equipment is operational. The cargo and ballast systems should be protected against cold temperatures. The crew are to be provided with appropriate warm clothing and the accommodation heating must be effective. Other measures will require the deck steel to be of a grade that will withstand cold temperatures, and internal heating may be required in the ballast spaces. Steam line dead end sections are to be treated with caution and drained of condensate which may be susceptible to freezing. A study of winterisation requirements by SEIC has identified the following requirements. • Ice class for hull structure - Vessels, which are built with a view to load at Prigorodnoye throughout the year, are recommended to be built to the Russian Ice Classification level 'LU2' or higher. It is a SEIC requirement that all vessels have ice classification for the hull structure. Although it is possible for a low or no ice class vessel to enter Aniva Bay SEIC does not recommend this as the safe speeds could be severely limiting. • Ice classification for propeller and propulsion shafting - Propeller and shafting are to meet the requirements of the Russian Maritime Register of Shipping’s LU2 ice classification or equivalent. • Manifold - The OCIMF "Recommendations for Manifolds for Refrigerated LNGC" and SIGTTO ship shore compatibility documentation can be used as guides. Recommend that a heated manifold shelter be fitted on each manifold for use during loading operations. Means to keep manifold clear of snow and ice to be provided. • Winterisation - It is to be possible to operate the vessel in sub-zero temperature of -25°C with 0000-S-90-01-P-0207-00-E Page 22 of 101 BM Code: EP.14.03.01.09
Prigorodnoye Export Terminal Port Regulations Rev 01 wind speeds up to 20 ms-1. Equipment, systems, operability by crew and material suitability to be considered. Means to keep main and emergency access ways to be provided. • Strong points for towing in ice - Strong points required both forward and aft for emergency towing in ice. Two 70 tonne strong points are required at forward end and IMO emergency towing requirements to be met at the aft end. For a standard LNGC this requires the fitting of an additional towing point forward to enable two tugs to be connected each tug of 70 tonnes bollard pull. Normally the vessel is to rig wires to enable the tug to easily connect in the case of an emergency. • Sheltered bridge wings and navigation - Conning bridge wings should be sheltered and have necessary thermal insulation and heated windows. It is recommended that the Bridge wings are totally enclosed. If this is not done then an alternative solution is required. Navigation of the vessel when transiting ice and berthing will be from abridge wing. Additional manoeuvring and navigational control station(s) without steering gear control to be provided on the bridge wing(s). Communication between bridge wing and wheelhouse to be provided. Adequate forward view from the conning station to be provided. Main wheelhouse windows to be heated, be as deep as possible and angle outwards. Exposed navigation equipment to be suitable for operation at -25°C with 20ms -1 wind speed. • Navigation glasses - Navigation lights to be fitted with heat-traced glass if necessary. • Search lights or enhanced night vision for ice navigation - Searchlights to be fitted on the bridge wings and forecastle to provide sufficient lighting ahead of the vessel for ice transit at night. SEIC recommends that night vision cameras be fitted. These can also be used in periods of fog, which is not uncommon in Aniva Bay and for security purposes. Alternatively Xenon type focused lights; two on the bow, and one on each bridge wing, controlled from the wheelhouse and conning station with cameras at the forward end can be fitted. It is considered that this arrangement is essential for the vessel to be able to see the lead in the ice behind the ice breaker. • Security - Recommended that additional cameras be installed for security purposes covering the main and poop decks. Passive night vision system recommended. Accommodation and control space security to be considered and to be in compliance with IMO. Guardhouse overlooking the shore gangway recommended. To be heated and ventilated. • Ice passport or ice certificate - Vessel to be in possession of a valid 'Ice passport'. Passport is valid for 10 years from date of issue, revalidated at refit thereafter. CNIIMF is the only Russian authority currently able to issue ice passports. Note there is currently a proposal to reduce the validity to five years to coincide with the classification society survey cycle. The ice passport will describe the vessels performance in ice including it’s stopping distances and manoeuvrability. Safe speeds and distances are to be defined. Copy of certificate to be provided to SEIC. • Power certificate based on the engine and propeller characteristics and sea trial information - Certificate of main engine power - Vessel to be able to maintain a minimum speed of 4-5 knots in ice up to 60cms thick following ice breakers. Copy of Certificate of Adequate Main Engine Power and Propeller to be provided to SEIC. • Enhanced radar image - This is strongly recommended by SEIC as the radar image is greatly enhanced improving ice navigation. Either the Enfotec or Rutter systems are suitable. • Radar scanner – One 3cm (X-band) scanner to be sited forward. • Navigation and communication equipment - All the navigation and communication equipment shall comply with SOLAS-74/88, Chapter IV including the requirements for GMDSS and Chapter V, Regulation 19, Shipborne Navigational Equipment. All equipment to be operable at -25°C with 20ms -1 wind speed. • Electronic radio receiving equipment - Systems such as Inmarsat B/Inmarsat F77 or Inmarsat C receiving stations are to be fitted for the reception of ice and hydro meteorological graphic information. • Cooling water systems - Vessels to have two cooling water suctions for the main and auxiliary machinery located on opposite sides of the hull. At least one of these suctions shall be 0000-S-90-01-P-0207-00-E Page 23 of 101 BM Code: EP.14.03.01.09
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