10. Regulation 4 of Chapter II-2 of the principal Regulations is amended —(a) | by deleting the word “lubrication” where it first appears in paragraph (b) and substituting the word “lubricating”; | (b) | by deleting the word “lubrication” in paragraph (b)(ii)(3)(A) and substituting the word “lubricating”; | (c) | by deleting the words “category A machinery spaces” in paragraph (b)(ii)(3)(B) and substituting the words “machinery spaces of category A”; and | (d) | by inserting, immediately after sub-paragraph (v) of paragraph (b), the following sub-paragraph:“(vi) | Regulations which apply to ships constructed on or after 1st September 1984 but before 1st July 2002(1) | Limitations in the use of oil as fuel | The following limitations shall apply to the use of oil as fuel:(A) | except as otherwise permitted by this sub-paragraph, no oil fuel with a flashpoint of less than 60ºC shall be used; | (B) | in emergency generators, oil fuel with a flashpoint of not less than 43°C may be used; | (C) | subject to such additional precautions as the Director may consider necessary and on condition that the ambient temperature of the space in which such oil fuel is stored or used shall not be allowed to rise to within 10°C below the flashpoint of such oil fuel, the Director may permit the general use of oil fuel having a flashpoint of less than 60°C but not less than 43°C; and | (D) | in cargo ships, the use of fuel having an otherwise lower flashpoint than that specified in this sub-paragraph, for example crude oil, may be permitted, provided that such fuel is not stored in any machinery space and subject to the approval by the Director of the complete installation on a case by case basis. |
The flashpoint of oils shall be determined by an approved closed cup method. |
| (2) | Oil fuel arrangements | In a ship in which oil fuel is used, the arrangements for the storage, distribution and utilisation of the oil fuel shall be such as to ensure the safety of the ship and persons on board and shall at least comply with the following provisions:(A) | As far as practicable, parts of the oil fuel system containing heated oil under pressure exceeding 0.18 N/mm2 shall not be placed in a concealed position such that defects and leakage cannot readily be observed. The machinery spaces in way of such parts of the oil fuel system shall be adequately illuminated. | (B) | The ventilation of machinery spaces shall be sufficient under all normal conditions to prevent the accumulation of oil vapour. | (C) | As far as practicable, oil fuel tanks shall be part of the ship’s structure and shall be located outside machinery spaces of category A. Where oil fuel tanks, other than double bottom tanks, are necessarily located adjacent to or within machinery spaces of category A, at least one of their vertical sides shall be contiguous to the machinery space boundaries, and shall preferably have a common boundary with the double bottom tanks, and the area of a fuel tank’s common boundary with the machinery spaces shall be kept to a minimum. Where such tanks are situated within the boundaries of machinery spaces of category A, they shall not contain oil fuel having a flashpoint of less than 60°C. In general, the use of free-standing oil fuel tanks shall be avoided. When such tanks are employed, their use shall be prohibited in machinery spaces of category A on passenger ships. Where permitted, they shall be placed in an oil-tight spill tray of ample size having a suitable drain pipe leading to a suitably sized spill oil tank. | (D) | No oil fuel tank shall be situated where spillage or leakage therefrom can constitute a hazard by falling on heated surfaces. Precautions shall be taken to prevent any oil that may escape under pressure from any pump, filter or heater from coming into contact with heated surfaces. | (E) | Every oil fuel pipe, which, if damaged, would allow oil to escape from a storage, settling or daily service tank situated above the double bottom shall be fitted, directly on the tank, with a cock or valve capable of being closed from a safe position outside the space concerned, in the event of a fire occurring in the space in which such tanks are situated. In the special case of deep tanks situated in any shaft or pipe tunnel or similar space, valves on the tank shall be fitted, but control, in the event of fire, may be effected by means of an additional valve on the pipe or pipes outside the tunnel or similar space. If such additional valve is fitted in the machinery space it shall be operated from a position outside this space. | (F) | Safe and efficient means of ascertaining the amount of oil fuel contained in any oil fuel tank shall be provided.(I) | Where sounding pipes are used, they shall not terminate in any space where the risk of ignition of spillage from a sounding pipe might arise. In particular, sounding pipes shall not terminate in passenger or crew spaces. As a general rule, sounding pipes shall not terminate in machinery spaces. However, where the Director considers that these latter requirements (i.e. the requirements that sounding pipes shall not terminate in machinery spaces) are impracticable, he may permit their termination in machinery spaces, on condition that all the following requirements are met:(1) | an oil-level gauge which meets the requirements of sub-paragraph (II) is provided; | (2) | the sounding pipes terminate in locations remote from ignition hazards, unless precautions are taken, such as the fitting of effective screens to prevent the oil fuel (in the case of spillage through the terminations of the sounding pipes) from coming into contact with a source of ignition; | (3) | the terminations of sounding pipes are fitted with self-closing blanking devices and with a small-diameter self-closing control cock located below the blanking device for the purpose of ascertaining, before the blanking device is opened, that oil fuel is not present. Provision shall be made so as to ensure that any spillage of oil fuel through the control cock involves no ignition hazard. |
| (II) | Other oil-level gauges may be used in place of sounding pipes. Such means (i.e. other oil-level gauges), like the means provided in sub-paragraph (I)(1), are subject to the following conditions:(1) | in passenger ships, such means shall not require penetration below the top of the oil fuel tank, and a failure of such means or an overfilling of the tank shall not permit the release of fuel; | (2) | in cargo ships, a failure of such means or an overfilling of the oil fuel tank shall not permit the release of fuel into the space. The use of cylindrical gauge glasses is prohibited. The Director may permit the use of oil-level gauges with flat glasses and self-closing valves between the gauges and fuel tanks. |
| (III) | The means prescribed in sub-paragraph (II)(1) or (II)(2), which are acceptable to the Director, shall be maintained in the proper condition to ensure their continued accurate functioning in service. |
| (G) | Provision shall be made to prevent overpressure in any oil tank or in any part of the oil fuel system, including the filling pipes. Any relief valves and air or overflow pipes shall discharge to a position which, in the opinion of the Director, is safe. | (H) | Oil fuel pipes and their valves and fittings shall be of steel or other approved material, except that the restricted use of flexible pipes shall be permissible in positions where the Director is satisfied that such flexible pipes are necessary. Such flexible pipes and end attachments shall be of approved fire-resisting materials of adequate strength and shall be constructed to the satisfaction of the Director. | (I) | For ships constructed on or after 1st February 1992, all external high pressure fuel delivery lines between the high pressure fuel pumps and fuel injectors shall be protected with a jacketed piping system capable of containing fuel from a high pressure line failure. A jacketed pipe incorporates an outer pipe into which the high pressure fuel pipe is placed forming a permanent assembly. The jacketed piping system shall include a means for collection of leakages, and arrangements shall be provided for an alarm to be given of a fuel line failure. | (J) | For ships constructed on or after 1st February 1992, all surfaces with temperatures above 220°C which may be impinged as a result of a fuel system failure shall be properly insulated. | (K) | For ships constructed on or after 1st February 1992, oil fuel lines shall be screened or otherwise suitably protected to avoid, as far as practicable, oil spray or oil leakages onto hot surfaces, into machinery air intakes, or other sources of ignition. The number of joints in such piping systems shall be kept to a minimum. | (L) | For ships constructed on or after 1st February 1992 but before 1st July 1998, a suitable enclosure on engines having an output of 375 kW or less, having fuel injection pumps serving more than one injector, may be used as an alternative to the jacketed piping system referred to in sub-paragraph (I). |
| (3) | Lubricating oil arrangements | The arrangements for the storage, distribution and utilisation of oil used in pressure lubrication systems shall be such as to ensure the safety of the ship and persons on board. The arrangements made in machinery spaces of category A, and whenever practicable in other machinery spaces, shall at least comply with the provisions of sub-paragraphs (2)(A), (2)(D), (2)(E), (2)(F), (2)(G) and (2)(H), and additionally, in the case of ships constructed on or after 1st July 1998, with the provisions of sub-paragraphs (2)(J) and (2)(K), except that —(A) | this does not preclude the use of sight-flow glasses in lubricating systems, provided that they are shown by testing to have a suitable degree of fire resistance; | (B) | subject to sub-paragraph (C), sounding pipes may be authorised in machinery spaces; and | (C) | the requirements of sub-paragraphs (2)(F)(I)(1) and (2)(F)(I)(3) need not be applied if the sounding pipes are fitted with appropriate means of closure. |
| (4) | Arrangements for other flammable oils | The arrangements for the storage, distribution and utilisation of other flammable oils employed under pressure in power transmission systems, control and activating systems and heating systems shall be such as to ensure the safety of the ship and persons on board. In locations where means of ignition are present, such arrangements shall at least comply with the provisions of sub-paragraphs (2)(D) and (2)(F), and additionally, in the case of ships constructed on or after 1st July 1998, with the provisions of sub-paragraphs (2)(J) and (2)(K), and with the provisions of sub-paragraphs (2)(G) and (2)(H) in respect of strength and construction. | (5) | Periodically unattended machinery spaces | In addition to the requirements of sub-paragraphs (1) to (4), the oil fuel and lubricating oil systems shall comply with the following:(A) | Where daily service oil fuel tanks are filled automatically, or by remote control, means shall be provided to prevent overflow spillages. Other equipment which treats flammable liquids automatically, e.g. oil fuel purifiers, which, whenever practicable, shall be installed in a special space reserved for purifiers and their heaters, shall have arrangements to prevent overflow spillages. | (B) | Where daily service oil fuel tanks or settling tanks are fitted with heating arrangements, a high temperature alarm shall be provided if the flashpoint of the oil fuel can be exceeded. |
| (6) | Prohibition of carriage of flammable oils in forepeak tanks | Oil fuel, lubricating oil and other flammable oils shall not be carried in forepeak tanks.”. |
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