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Приложение 10

INTERNATIONAL CODE FOR SHIPS OPERATING
IN POLAR WATERS (POLAR CODE)

Contents

PREAMBLE INTRODUCTION

1 Goal
2 Definitions
3 Sources of hazards
4 Structure of the Code
5 Figures illustrating the Antarctic area and Arctic waters

PART I-A SAFETY MEASURES

CHAPTER 1 - GENERAL
1.1 Structure of this part
1.2 Definitions
1.3 Certificate and survey
1.4 Performance standards
1.5 Operational assessment
CHAPTER 2 - POLAR WATER OPERATIONAL MANUAL (PWOM)
2.1 Goal
2.2 Functional requirements
2.3 Regulations
CHAPTER 3 - SHIP STRUCTURE
3.1 Goal
3.2 Functional requirements
3.3 Regulations
CHAPTER 4 - SUBDIVISION AND STABILITY
4.1 Goal
4.2 Functional requirements
4.3 Regulations
CHAPTER 5 - WATERTIGHT AND WEATHERTIGHT INTEGRITY
5.1 Goal
5.2 Functional requirements
5.3 Regulations
CHAPTER 6 - MACHINERY INSTALLATIONS
6.1 Goal
6.2 Functional requirements
6.3 Regulations
CHAPTER 7 - FIRE SAFETY/PROTECTION
7.1 Goal
7.2 Functional requirements
7.3 Regulations
CHAPTER 8 - LIFE-SAVING APPLIANCES AND ARRANGEMENTS
8.1 Goal
8.2 Functional requirements
8.3 Regulations
CHAPTER 9 - SAFETY OF NAVIGATION
9.1 Goal
9.2 Functional requirements
9.3 Regulations
CHAPTER 10 - COMMUNICATION
10.1 Goal
10.2 Functional requirements
10.3 Regulations
CHAPTER 11 - VOYAGE PLANNING
11.1 Goal
11.2 Functional requirement
11.3 Requirements
CHAPTER 12 - MANNING AND TRAINING
12.1 Goal
12.2 Functional requirements
12.3 Regulations

PART I-B ADDITIONAL GUIDANCE REGARDING THE PROVISIONS OF THE
INTRODUCTION AND PART I-A

1 Additional guidance to section 2 (definitions) of the introduction
2 Additional guidance to chapter 1 (General)
3 Additional guidance to chapter 2 (polar Water Operational Manual (PWOM))
3.1 Recommendation on the content of the Polar Water Operational Manual
3.2 Guidance on navigation with icebreaker assistance
3.3 Guidance on the development of contingency plans
4 Additional guidance to chapter 3 (Ship structure)
5 Additional guidance to chapter 4 (subdivision and Stability)
6 Additional guidance to chapter 5 (watertight and weathertight integrity)
7 Additional guidance to chapter 6 (machinery installations)
8 Additional guidance to chapter 7 (fire safety/protection)
9 Additional guidance to chapter 8 (life-saving appliances and arrangements)
9.1 Sample personal survival equipment
9.2 Sample group survival equipment
10 Additional guidance to chapter 9 (Safety of navigation)
11 Additional guidance to chapter 10 (Communication)
12 Additional guidance to chapter 11 (voyage planning)
13 Additional guidance to chapter 12 (Manning and training)

PART II-A POLLUTION PREVENTION MEASURES

CHAPTER 1. PREVENTION OF POLLUTION BY OIL

1.1 Operational requirements
1.2 Structural requirements

CHAPTER 2. CONTROL OF POLLUTION BY NOXIOUS LIQUID SUBSTANCES
IN BULK

2.1 Operational requirements

CHAPTER 3. PREVENTION OF POLLUTION BY HARMFUL SUBSTANCES
CARRIED BY SEA IN PACKAGED FORM

CHAPTER 4. PREVENTION OF POLLUTION BY SEWAGE FROM SHIPS

4.1 Definitions
4.2 Operational requirements

CHAPTER 5. PREVENTION OF POLLUTION BY GARBAGE FROM SHIPS

5.1 Definitions
5.2 Operational requirements

PART II-B ADDITIONAL GUIDANCE TO PART II-A

1 Additional guidance to chapter 1
2 Additional guidance to chapter 2
3 Additional guidance to chapter 5
4 Additional guidance under other environmental Conventions and guidelines

PREAMBLE

1 The International Code for Ships Operating in Polar Waters has been developed to supplement existing IMO instruments in order to increase the safety of ships' operation and mitigate the impact on the people and environment in the remote, vulnerable and potentially harsh polar waters.
2 The Code acknowledges that polar water operation may impose additional demands on ships, their systems and operation beyond the existing requirements of the International Convention for the Safety of Life at Sea (SOLAS), 1974, the International Convention for the Prevention of Pollution from Ships, 1973, as modified by the Protocol of 1978 relating thereto as amended by the 1997 Protocol, and other relevant binding IMO instruments.
3 The Code acknowledges that the polar waters impose additional navigational demands beyond those normally encountered. In many areas, the chart coverage may not currently be adequate for coastal navigation. It is recognized even existing charts may be subject to unsurveyed and uncharted shoals.
4 The Code also acknowledges that coastal communities in the Arctic could be, and that polar ecosystems are, vulnerable to human activities, such as ship operation.
5 The relationship between the additional safety measures and the protection of the environment is acknowledged as any safety measure taken to reduce the probability of an accident, will largely benefit the environment.
6 While Arctic and Antarctic waters have similarities, there are also significant differences. Hence, although the Code is intended to apply as a whole to both Arctic and Antarctic, the legal and geographical differences between the two areas have been taken into account.
7 The key principles for developing the Polar Code have been to use a risk-based approach in determining scope and to adopt a holistic approach in reducing identified risks.

INTRODUCTION

1 Goal
The goal of this Code is to provide for safe ship operation and the protection of the polar environment by addressing risks present in polar waters and not adequately mitigated by other instruments of the Organization.
2 Definitions
For the purpose of this Code, the terms used have the meanings defined in the following paragraphs. Terms used in part I-A, but not defined in this section shall have the same meaning as defined in SOLAS. Terms used in part II-A, but not defined in this section shall have the same meaning as defined in article 2 of MARPOL and the relevant MARPOL Annexes.
2.1 Category A ship means a ship designed for operation in polar waters in at least medium first-year ice, which may include old ice inclusions.
2.2 Category B ship means a ship not included in category A, designed for operation in polar waters in at least thin first-year ice, which may include old ice inclusions.
2.3 Category C ship means a ship designed to operate in open water or in ice conditions less severe than those included in categories A and B.
2.4 First-year ice means sea ice of not more than one winter growth developing from young ice with thickness from 0.3 m to 2.0 m <1>.
--------------------------------
<1> См. Номенклатуру морского льда ВМО.

2.5 Ice free waters means no ice present. If ice of any kind is present this term shall not be used <1>.
--------------------------------
<1> См. Номенклатуру морского льда ВМО.

2.6 Ice of land origin means ice formed on land or in an ice shelf, found floating in water <1>.
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<1> См. Номенклатуру морского льда ВМО.

2.7 MARPOL means the International Convention for the Prevention of Pollution from Ships, 1973, as modified by the Protocol of 1978 relating thereto as amended by the 1997 Protocol.
2.8 Medium first-year ice means first-year ice of 70 cm to 120 cm thick-ness <1>.
--------------------------------
<1> См. Номенклатуру морского льда ВМО.

2.9 Old ice means sea ice which has survived at least one summer's melt; typical thickness up to 3 m or more. It is subdivided into residual first-year ice, second-year ice and multi-year ice <1>.
--------------------------------
<1> См. Номенклатуру морского льда ВМО.

2.10 Open water means a large area of freely navigable water in which sea ice is present in concentrations less than 1/10. No ice of land origin is present.
2.11 Organization means the International Maritime Organization.
2.12 Sea ice means any form of ice found at sea which has originated from the freezing of sea water <1>.
--------------------------------
<1> См. Номенклатуру морского льда ВМО.

2.13 SOLAS means the International Convention for the Safety of Life at Sea, 1974, as amended.
2.14 STCW Convention means the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers, 1978, as amended.
2.15 Thin first-year ice means first-year ice 30 cm to 70 cm thick.
3 Sources of hazards
3.1 The Polar Code considers hazards which may lead to elevated levels of risk due to increased probability of occurrence, more severe consequences, or both:
1 Ice, as it may affect hull structure, stability characteristics, machinery systems, navigation, the outdoor working environment, maintenance and emergency preparedness tasks and malfunction of safety equipment and systems;
2 experiencing topside icing, with potential reduction of stability and equipment functionality;
3 low temperature, as it affects the working environment and human performance, maintenance and emergency preparedness tasks, material properties and equipment efficiency, survival time and performance of safety equipment and systems;
4 extended periods of darkness or daylight as it may affect navigation and human performance;
5 high latitude, as it affects navigation systems, communication systems and the quality of ice imagery information;
6 remoteness and possible lack of accurate and complete hydrographic data and information, reduced availability of navigational aids and seamarks with increased potential for groundings compounded by remoteness, limited readily deployable SAR facilities, delays in emergency response and limited communications capability, with the potential to affect incident response;
7 potential lack of ship crew experience in polar operations, with potential for human error;
8 potential lack of suitable emergency response equipment, with the potential for limiting the effectiveness of mitigation measures;
9 rapidly changing and severe weather conditions, with the potential for escalation of incidents; and
10 the environment with respect to sensitivity to harmful substances and other environmental impacts and its need for longer restoration.
3.2 The risk level within polar waters may differ depending on the geographical location, time of the year with respect to daylight, ice-coverage, etc. Thus, the mitigating measures required to address the above specific hazards may vary within polar waters and may be different in Arctic and Antarctic waters.
4 Structure of the Code
This Code consists of Introduction, parts I and II. The Introduction contains mandatory provisions applicable to both parts I and II. Part I is subdivided into part I-A, which contains mandatory provisions on safety measures, and part I-B containing recommendations on safety. Part II is subdivided into part II-A, which contains mandatory provisions on pollution prevention, and part II-B containing recommendations on pollution prevention.
5 Figures illustrating the Antarctic area and Arctic waters, as defined in SOLAS regulations XIV/1.2 and XIV/1.3, respectively, and MARPOL Annex I, regulations 1.11.7 and 46.2; Annex II, regulations 13.8.1 and 21.2; Annex IV, regulations 17.2 and 17.3; and Annex V, regulations 1.14.7 and 13.2.



Figure 1. Maximum extent of Antarctic area application



Figure 2. Maximum extent of Arctic waters application

PART I-A SAFETY MEASURES

CHAPTER 1 - GENERAL

1.1 Structure of this part
Each chapter in this part consists of the overall goal of the chapter, functional requirements to fulfil the goal, and regulations. A ship shall be considered to meet a functional requirement set out in this part when either:
1. the ship's design and arrangements comply with all the regulations associated with that functional requirement; or 2 part(s) or all of the ship's relevant design and arrangements have been reviewed and approved in accordance with regulation 4 of SOLAS chapter XIV, and any remaining parts of the ship comply with the relevant regulations.
1.2 Definitions
In addition to the definitions included in the relevant SOLAS chapters and the introduction of this Code, the following definitions are applicable to this part.
1.2.1 Bergy waters mean an area of freely navigable water in which ice of land origin is present in concentrations less than 1/10. There may be sea ice present, although the total concentration of all ice shall not exceed 1/10.
1.2.2 Escort means any ship with superior ice capability in transit with another ship.
1.2.3 Escorted operation means any operation in which a ship's movement is facilitated through the intervention of an escort.
1.2.4 Habitable environment means a ventilated environment that will protect against hypothermia.
1.2.5 Icebreaker means any ship whose operational profile may include escort or ice management functions, whose powering and dimensions allow it to undertake aggressive operations in ice-covered waters.
1.2.6 Ice Class means the notation assigned to the ship by the Administration or by an organization recognized by the Administration showing that the ship has been designed for navigation in sea-ice conditions.
1.2.7 Maximum expected time of rescue means the time adopted for the design of equipment and system that provide survival support. It shall never be less than 5 days.
1.2.8 Machinery Installations means equipment and machinery and its associated piping and cabling, which is necessary for the safe operation of the ship.
1.2.9 Mean Daily Low Temperature (MDLT) means the mean value of the daily low temperature for each day of the year over a minimum 10 year period. A data set acceptable to the Administration may be used if 10 years of data is not available <1>.
--------------------------------
<1> См. также дополнительные указания в части I-B.

1.2.10 Polar Class (PC) means the ice class assigned to the ship by the Administration or by an organization recognized by the Administration based upon IACS Unified Requirements.
1.2.11 Polar Service Temperature (PST) means a temperature specified for a ship which is intended to operate in low air temperature, which shall be set at least 10 oC below the lowest MDLT for the intended area and season of operation in polar waters.
1.2.12 Ship intended to operate in low air temperature means a ship which is intended to undertake voyages to or through areas where the lowest Mean Daily Low Temperature (MDLT) is below - 10 oC.
1.2.13 Tankers mean oil tankers as defined in SOLAS regulation II-1/2.22, chemical tankers as defined in SOLAS regulation II-I/3.19 and gas carriers as defined in SOLAS regulation VII/11.2.
1.2.14 Upper ice waterline means the waterline defined by the maximum draughts forward and aft for operation in ice.
1.3 Certificate and survey
1.3.1 Every ship to which this Code applies shall have on board a valid Polar Ship Certificate.
1.3.2 Except as provided for in paragraph 1.3.3, the Polar Ship Certificate shall be issued after an initial or renewal survey to a ship which complies with the relevant requirements of this Code.
1.3.3 For category C cargo ships, if the result of the assessment in paragraph 1.5 is that no additional equipment or structural modification is required to comply with the Polar Code, the Polar Ship Certificate may be issued based upon documented verification that the ship complies with all relevant requirements of the Polar Code. In this case, for continued validity of the certificate, an onboard survey should be undertaken at the next scheduled survey.
1.3.4 The certificate referred to in this regulation shall be issued either by the Administration or by any person or organization recognized by it in accordance with SOLAS regulation XI-I/1. In every case, that Administration assumes full responsibility for the certificate.
1.3.5 The Polar Ship Certificate shall be drawn up in the form corresponding to the model given in appendix 1 to this Code. If the language used is neither English, nor French nor Spanish, the text shall include a translation into one of these languages.
1.3.6 Polar Ship Certificate validity, survey dates and endorsements shall be harmonized with the relevant SOLAS certificates in accordance with the provisions of regulation I/14 of the SOLAS Convention. The certificate shall include a supplement recording equipment required by the Code.
1.3.7 Where applicable, the certificate shall reference a methodology to assess operational capabilities and limitations in ice to the satisfaction of the Administration, taking into account the guidelines developed by the Organization.
1.4 Performance standards
1.4.1 Unless expressly provided otherwise, ship systems and equipment addressed in this Code shall satisfy at least the same performance standards referred to in SOLAS.
1.4.2 For ships operating in low air temperature, a polar service temperature (PST) shall be specified and shall be at least 10 oC below the lowest MDLT for the intended area and season of operation in polar waters. Systems and equipment required by this Code shall be fully functional at the polar service temperature.
1.4.3 For ships operating in low air temperature, survival systems and equipment shall be fully operational at the polar service temperature during the maximum expected rescue time.
1.5 Operational assessment
In order to establish procedures or operational limitations, an assessment of the ship and its equipment shall be carried out, taking into consideration the following:
1 the anticipated range of operating and environmental conditions, such as:
1 operation in low air temperature;
2 operation in ice;
3 operation in high latitude; and
4 potential for abandonment onto ice or land;
2 hazards, as listed in section 3 of the Introduction, as applicable; and
3 additional hazards, if identified.

CHAPTER 2 - POLAR WATER OPERATIONAL MANUAL (PWOM)

2.1 Goal
The goal of this chapter is to provide the owner, operator, master and crew with sufficient information regarding the ship's operational capabilities and limitations in order to support their decision-making process.
2.2 Functional requirements
2.2.1 In order to achieve the goal set out in paragraph 2.1 above, the following functional requirements are embodied in the regulations of this chapter.
2.2.2 The Manual shall include information on the ship-specific capabilities and limitations in relation to the assessment required under paragraph 1.5.
2.2.3 The Manual shall include or refer to specific procedures to be followed in normal operations and in order to avoid encountering conditions that exceed the ship's capabilities.
2.2.4 The Manual shall include or refer to specific procedures to be followed in the event of incidents in polar waters.
2.2.5 The Manual shall include or refer to specific procedures to be followed in the event that conditions are encountered which exceed the ship's specific capabilities and limitations in paragraph 2.2.2.
2.2.6 The Manual shall include or refer to procedures to be followed when using icebreaker assistance, as applicable.
2.3 Regulations
2.3.1 In order to comply with the functional requirements of paragraphs 2.2.1, to 2.2.6, the Manual shall be carried on board.
2.3.2 In order to comply with the functional requirements of paragraph 2.2.2, the Manual shall contain, where applicable, the methodology used to determine capabilities and limitations in ice.
2.3.3 In order to comply with the functional requirements of paragraph 2.2.3, the Manual shall include risk-based procedures for the following:
1 voyage planning to avoid ice and/or temperatures that exceed the ship's design capabilities or limitations;
2 arrangements for receiving forecasts of the environmental conditions;
3 means of addressing any limitations of the hydrographic, meteorological and navigational information available;
4 operation of equipment required under other chapters of this Code; and
5 implementation of special measures to maintain equipment and system functionality under low temperatures, topside icing and the presence of sea ice, as applicable.
2.3.4 In order to comply with the functional requirements of paragraph 2.2.4, the Manual shall include risk-based procedures to be followed for:
1 contacting emergency response providers for salvage, search and rescue (SAR), spill response, etc., as applicable; and
2 in the case of ships ice strengthened in accordance with chapter 3, procedures for maintaining life support and ship integrity in the event of prolonged entrapment by ice.
2.3.5 In order to comply with the functional requirements of paragraph 2.2.5, the Manual shall include risk-based procedures to be followed for measures to be taken in the event of encountering ice and/or temperatures which exceed the ship's design capabilities or limitations.
2.3.6 In order to comply with the functional requirements of paragraph 2.2.6, the Manual shall include risk-based procedures for monitoring and maintaining safety during operations in ice, as applicable, including any requirements for escort operations or icebreaker assistance. Different operational limitations may apply depending on whether the ship is operating independently or with icebreaker escort. Where appropriate, the PWOM should specify both options.

CHAPTER 3 - SHIP STRUCTURE

3.1 Goal
The goal of this chapter is to provide that the material and scantlings of the structure retain their structural integrity based on global and local response due to environmental loads and conditions.
3.2 Functional requirements
In order to achieve the goal set out in paragraph 3.1 above, the following functional requirements are embodied in the regulations of this chapter:
1 for ships intended to operate in low air temperature, materials used shall be suitable for operation at the ships polar service temperature; and
2 in ice strengthened ships, the structure of the ship shall be designed to resist both global and local structural loads anticipated under the foreseen ice conditions.
3.3 Regulations
3.3.1 In order to comply with the functional requirements of paragraph 3.2.1 above, materials of exposed structures in ships shall be approved by the Administration, or a recognized organization accepted by it, taking into account standards acceptable to the Organization <1> or other standards offering an equivalent level of safety based on the polar service temperature.
--------------------------------
<1> См.: Унифицированные требования MAKO UR S6 "Использование категорий стали для различных элементов корпуса - суда длиной 90 м и более" (последняя версия), либо Унифицированные требования MAKO URI для судов полярного плавания (последняя версия), по принадлежности.

3.3.2 In order to comply with the functional requirements of paragraph 3.2.2 above, the following apply:
1 scantlings of category A ships shall be approved by the Administration, or a recognized organization accepted by it, taking into account standards acceptable to the Organization <1> or other standards offering an equivalent level of safety;
--------------------------------
<1> См.: полярные классы PC1-PC5 Унифицированных требований MAKO URI для судов полярного плавания (последняя версия).

2 scantlings of category B ships shall be approved by the Administration, or a recognized organization accepted by it, taking into account standards acceptable to the Organization <1> or other standards offering an equivalent level of safety;
--------------------------------
<1> См.: полярные классы PC6, PC7 Унифицированных требований MAKO URI для судов полярного плавания (последняя версия).

3 scantlings of ice strengthened category C ships shall be approved by the Administration, or a recognized organization accepted by it, taking into account acceptable standards adequate for the ice types and concentrations encountered in the area of operation; and
4 a category C ship need not be ice strengthened if, in the opinion of the Administration, the ship's structure is adequate for its intended operation.

CHAPTER 4 - SUBDIVISION AND STABILITY

4.1 Goal
The goal of this chapter is to ensure adequate subdivision and stability in both intact and damaged conditions.
4.2 Functional requirements
In order to achieve the goal set out in paragraph 4.1 above, the following functional requirements are embodied in the regulations of this chapter:
1 ships shall have sufficient stability in intact conditions when subject to ice accretion; and
2 ships of category A and B, constructed on or after 1 January 2017, shall have sufficient residual stability to sustain ice-related damages.
4.3 Regulations
4.3.1 Stability in intact conditions
4.3.1.1 In order to comply with the functional requirement of paragraph 4.2.1, for ships operating in areas and during periods where ice accretion is likely to occur, the following icing allowance shall be made in the stability calculations:
1 30 kg/m2 on exposed weather decks and gangways;
2 7.5 kg/m2 for the projected lateral area of each side of the ship above the water plane; and
3 the projected lateral area of discontinuous surfaces of rail, sundry booms, spars (except masts) and rigging of ships having no sails and the projected lateral area of other small objects shall be computed by increasing the total projected area of continuous surfaces by 5% and the static moments of this area by 10%.
4.3.1.2 Ships operating in areas and during periods where ice accretion is likely to occur shall be:
1 designed to minimize the accretion of ice; and
2 equipped with such means for removing ice as the Administration may require; for example, electrical and pneumatic devices, and/or special tools such as axes or wooden clubs for removing ice from bulwarks, rails and erections.
4.3.1.3 Information on the icing allowance included in the stability calculations shall be given in the PWOM.
4.3.1.4 Ice accretion shall be monitored and appropriate measures taken to ensure that the ice accretion does not exceed the values given in the PWOM.
4.3.2 Stability in damaged conditions
4.3.2.1 In order to comply with the functional requirements of paragraph 4.2.2, ships of categories A and B, constructed on or after 1 January 2017, shall be able to withstand flooding resulting from hull penetration due to ice impact. The residual stability following ice damage shall be such that the factor si, as defined in SOLAS regulations II-I/7-2.2 and II-I/7-2.3, is equal to one for all loading conditions used to calculate the attained subdivision index in SOLAS regulation II-I/7. However, for cargo ships that comply with subdivision and damage stability regulations in another instrument developed by the Organization, as provided by SOLAS regulation II-I/4.1, the residual stability criteria of that instrument shall be met for each loading condition.
4.3.2.2 The ice damage extents to be assumed when demonstrating compliance with paragraph 4.3.2.1 shall be such that:
1 the longitudinal extent is 4.5% of the upper ice waterline length if centred forward of the maximum breadth on the upper ice waterline, and 1.5% of upper ice waterline length otherwise, and shall be assumed at any longitudinal position along the ship's length;
2 the transverse penetration extent is 760 mm, measured normal to the shell over the full extent of the damage; and 3 the vertical extent is the lesser of 20% of the upper ice waterline draught or the longitudinal extent, and shall be assumed at any vertical position between the keel and 120% of the upper ice waterline draught.

CHAPTER 5 - WATERTIGHT AND WEATHERTIGHT INTEGRITY

5.1 Goal
The goal of this chapter is to provide measures to maintain watertight and weathertight integrity.
5.2 Functional requirements
In order to achieve the goal set out in paragraph 5.1 above, all closing appliances and doors relevant to watertight and weathertight integrity of the ship shall be operable.
5.3 Regulations
In order to comply with the functional requirements of paragraph 5.2 above, the following apply:
1 for ships operating in areas and during periods where ice accretion is likely to occur, means shall be provided to remove or prevent ice and snow accretion around hatches and doors; and
2 in addition, for ships intended to operate in low air temperature the following apply:
1 if the hatches or doors are hydraulically operated, means shall be provided to prevent freezing or excessive viscosity of liquids; and 2 watertight and weathertight doors, hatches and closing devices which are not within an habitable environment and require access while at sea shall be designed to be operated by personnel wearing heavy winter clothing including thick mittens.

CHAPTER 6 - MACHINERY INSTALLATIONS

6.1 Goal
The goal of this chapter is to ensure that, machinery installations are capable of delivering the required functionality necessary for safe operation of ships.
6.2 Functional requirements
6.2.1 In order to achieve the goal set out in paragraph 6.1 above, the following functional requirements are embodied in the regulations of this chapter.
6.2.1.1 Machinery installations shall provide functionality under the anticipated environmental conditions, taking into account:
1 ice accretion and/or snow accumulation;
2 ice ingestion from seawater;
3 freezing and increased viscosity of liquids;
4 seawater intake temperature; and 5 snow ingestion.
6.2.1.2 In addition, for ships intended to operate in low air temperatures:
1 machinery installations shall provide functionality under the anticipated environmental conditions, also taking into account:
1 cold and dense inlet air; and 2 loss of performance of battery or other stored energy device; and 2 materials used shall be suitable for operation at the ships polar service temperature.
6.2.1.3 In addition, for ships ice strengthened in accordance with chapter 3, machinery installations shall provide functionality under the anticipated environmental conditions, taking into account loads imposed directly by ice interaction.
6.3 Regulations
6.3.1 In order to comply with the functional requirement of paragraph 6.2.1.1 above, taking into account the anticipated environmental conditions, the following apply:
1 machinery installations and associated equipment shall be protected against the effect of ice accretion and/or snow accumulation, ice ingestion from sea water, freezing and increased viscosity of liquids, seawater intake temperature and snow ingestion;
2 working liquids shall be maintained in a viscosity range that ensures operation of the machinery; and 3 seawater supplies for machinery systems shall be designed to prevent ingestion of ice, or otherwise arranged to ensure functionality.
6.3.2 In addition, for ships intended to operate in low air temperatures, the following apply:
1 in order to comply with the functional requirement of paragraph 6.2.1.2 above, exposed machinery and electrical installation and appliances shall function at the polar service temperature;
2 in order to comply with the functional requirement of paragraph 6.2.1.2.1 above, means shall be provided to ensure that combustion air for internal combustion engines driving essential machinery is maintained at a temperature in compliance with the criteria provided by the engine manufacturer; and 3 in order to comply with the functional requirements of paragraph 6.2.1.2.2 above, materials of exposed machinery and foundations shall be approved by the Administration, or a recognized organization accepted by it, taking into account standards acceptable to the Organization <1>, <2> or other standards offering an equivalent level of safety based on the polar service temperature.
--------------------------------
<1> См.: полярные классы PC1-PC5 Унифицированных требований MAKO URI для полярных классов (2011).
<2> См.: полярные классы РС6 и РС7 Унифицированных требований MAKO URI для полярных классов (2011).

6.3.3 In addition, for ships ice strengthened in accordance with chapter 3, in order to comply with the functional requirements of paragraph 6.2.1.3 above, the following apply:
1 scantlings of propeller blades, propulsion line, steering equipment and other appendages of category A ships shall be approved by the Administration, or a recognized organization accepted by it, taking into account standards acceptable to the Organization <1> or other standards offering an equivalent level of safety;
--------------------------------
<1> См.: полярные классы PC1-PC5 Унифицированных требований MAKO URI для полярных классов (2011).

2 scantlings of propeller blades, propulsion line, steering equipment and other appendages of category B ships shall be approved by the Administration, or a recognized organization accepted by it, taking into account standards acceptable to the Organization <1> or other standards offering an equivalent level of safety; and
--------------------------------
<1> См.: полярные классы РС6 и РС7 Унифицированных требований MAKO URI для полярных классов (2011).

3 scantlings of propeller blades, propulsion line, steering equipment and other appendages of ice-strengthened category C ships shall be approved by the
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