|
添付1 FP46/5/8
SUB-COMMITTEE ON FIRE PROTECTION |
FP 46/5/8 |
46th session |
30 November 2001 |
Agenda item 5 |
Original: ENGLISH |
UNIFIED INTERPRETATIONS TO SOLAS CHAPTER II-2
AND RELATED FIRE TEST PROCEDURES
Interpretations to the revised SOLAS chapter II-2
Submitted by Japan
SUMMARY
Executive summary: This document provides draft interpretations
to regulations in the revised SOLAS chapter II-2
Action to be taken: Paragraph 4
Related documents: MSC 73/21/Add.2, MSC/Circ.913, FP 46/5/9, FP
46/5/11, FP 46/5/10 |
|
1 Amendments to SOLAS chapter II-2 were adopted at MSC 73 by resolution MSC.99(73), as set out in annex 7 to document MSC 73/21/Add.2, which includes new requirements for oil fuel arrangements, fixed water-based local application fire-fighting system and emergency escape breathing devices (EEBD).
2 Japan has found that several interpretations to regulations in the revised SOLAS chapter II-2 are necessary in order to introduce smooth application of the regulations regarding the requirements mentioned in paragraph I above. Therefore, Japan has developed a set of draft interpretations as set out in the attached annex.
3 Japan thinks that it would be beneficial for Japan to receive any comments from other maritime administrations to the draft interpretation before putting them into actual use and, moreover, that it would also be beneficial to reach a consensus, within the Sub-Committee, on the draft interpretations. Therefore, Japan submits the draft interpretation to the Sub-Committee.
Action requested of the Sub-Committee
4 The Sub-Committee is invited to note that the draft interpretation described in the attached annex will be used by the Japanese Maritime Administration, and take actions as appropriate.
ANNEX
DRAFT INTERPRETATIONS OF THE REGULATIONS OF
CHAPTER II-2 IN SOLAS 2000
Reg. 4.2.2.3.4
Oil fuel pipes, which, if damaged, would allow oil to escape... it shall be operated from a position outside this space. The controls for remote operation of the valve for the emergency generator fuel tank shall be in a separate location from the controls for remote operation of other valves for tanks located in machinery spaces.1
Interpretation:
The control for the emergency generator fuel tank may be located in the fire control station where the controls for the other fuel oil tanks in machinery spaces are also located, provided that the control is isolated from the other controls with a distinctive marking.
Reg. 4.2.4 Arrangements for other flammable oils
The arrangements for the storage, distribution and utilization 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. Suitable oil collecting arrangements for leaks shall be fitted below hydraulic valves and cylinders.1 In locations where means of ignition are present, such arrangements shall at least comply with the provisions of paragraphs 2.2.3.3, 2.2.3.5, 2.2.5.3 and 2.2.6 and with the provisions of paragraphs 2.2.4 and 2.2.5.1 in respect of strength and construction.
Interpretation:
This requirement is applicable to below oil fuel pipes systems and below floor located on machinery room, etc. where excepted hydraulic valves and cylinders located on weather decks and in tanks, cofferdams or void spaces.
Reg. 4.5.10 Protection of cargo pump-rooms
Reg. 4.5.10.1 In tankers:
.1 cargo pumps, ballast pumps and stripping pumps, installed in cargo pump rooms...;
.2 lighting in cargo pump-rooms, except emergency lighting1, shall be interlocked with ventilation such that the ventilation shall be in operation when switching on the lighting. Failure of the ventilation system shall not cause the lighting to go out;
.3 a system for continuous monitoring of the concentration of hydrocarbon gases...; and
.4 all pump-rooms shall be provided with bilge level monitoring devices2 together with appropriately located alarms.
Interpretations:
1 Where the lighting in cargo pump rooms can be commonly used as the emergency lighting, these lighting should be interlocked with the ventilation systems unless the main electrical power source has been lost.
2 The bilge high level alarms can be acceptable as an alternative means for the level monitoring devices, provided that they are located a lower position to ensure an early bilge detection in the cargo pump room and extended to the cargo control room or the pump control station.
Reg. 10.5.6.2
Machinery spaces of category A above 500 m3 in volume shall, in addition to the fixed fire-extinguishing system required in paragraph 5.1.1, be protected by an approved type of fixed water-based or equivalent local application fire-fighting system, based on the guidelines developed by the Organization**1. In the case of periodically unattended machinery spaces, the fire fighting system shall have both automatic and manual release capabilities2. In the case of continuously manned machinery spaces, the fire-fighting system is only required to have a manual release capability.
**Refer to the Guidelines for the approval of fixed water-based local application fire-fighting systems for use in category A machinery spaces (MSC/Circ.91 3)
Interpretations:
1 When the intended nozzle direction is not vertically downward, tests which verify the fire-extinguishing capabilities equivalent to that specified in MSC/Circ.913 in circumstances of actual direction should be required in addition to the type approval test in accordance with MSC/Circ.913.
Note: For application to large main diesel engines, an inclined
installation of nozzles may be practicable aiming at the engine top from the outside of the ceiling crane
operation area.
2 The automatic release system should be designed to detect and identify a local fire quickly and accurately to prevent unexpected activation. It is impossible for present fixed fire detection and fire alarm systems to detect and identify a local fire quickly and accurately. Therefore, additional flame type fire detectors capable of identifying the position of a local fire shall be introduced to a part of the fire detecting and alarm system required in regulation II-2/7.4.1 of SOLAS 2000. Refer to the item 2-Operational capabilities of the systems in the appendix of this paper for detail.
Reg. 10.5.6.3
Fixed local application fire-fighting systems are to protect areas such as the following without the necessity of engine shutdown, personnel evacuation, or sealing of the spaces:
.1 the fire hazard portions of internal combustion machinery1 used for the ship's main propulsion and power generation;
.2 boiler fronts2;
.3 the fire hazard portions of incinerators3; and
.4 purifiers for heated fuel oil4.
Interpretations:
1 Hot surfaces such as exhaust pipes without insulation or with insulation likely to be removed frequently for maintenance and high pressure fuel oil systems installed nearby the hot surfaces should be protected. For typical diesel engines, the area on top of the engine, fuel oil injection pumps and turbo chargers should be protected. Where the F.O. injection pumps are installed under the steel platform, the pumps need not be protected. Refer to the item 1-Clarification on Protected Area in the appendix of this paper for detail.
2 The part around burners without insulation or with insulation likely to be removed frequently for maintenance should be protected. Oil-fired inert gas generators should be also protected in the same manner.
3 The part around burners without insulation or with insulation likely to be removed frequently for maintenance should be protected.
4 Whole of purifiers except operate heater and pipe lines should be protected.
Reg. 13.3.4 Emergency escape breathing devices*
*Refer to the Guidelines for the performance, location, use and care of emergency escape breathing devices (MSC/Circ.849).
Reg. 13.3.4.1
Emergency escape breathing devices shall comply with the Fire Safety Systems Code. Spare emergency escape breathing devices shall be kept onboard1.
Reg. 13.3.4.2
All ships shall carry at least two emergency escape breathing devices within accommodation spaces1&2
Reg. 13.3.4.3
In passenger ships, at least two emergency escape breathing devices shall be carried in each main vertical zone1.
Reg.13.3.4.4
In passenger ships carrying more than 36 passengers, two emergency escape breathing devices, in addition to those required in paragraph 3.4.3 above, shall be carried in each main vertical zone1.
Reg.13.3.4.5 (omitted.)
Interpretations:
1 EEBD(s) should be kept within accommodation spaces as a minimum;
(1) For cargo ships: 2 sets and 1 set of spare
(2) For passenger ships carrying not more than 36 passengers: 2 sets for each main vertical zone except those defined in the regulation 13.3.4.5, and 2 sets of spare
(3) For passenger ships carrying more than 36 passengers: 4 sets for each main vertical zone except those defined in the regulation 13.3.4.5, and 2 sets of spare
2 EEBD(s) should be located at fire control stations and/or staircases in the escape route for cargo ships.
Reg. 13.4.3.1
On all ships, within the machinery spaces, emergency escape breathing devices shall be situated ready for use at easily visible places, which can be reached quickly and easily at any time in the event of fire. The location of emergency escape breathing devices shall take into account the layout of the machinery space and the number of persons normally working in the spaces.1
Interpretation:
1 EEBDs should be provided as shown below for the machinery space of category A where ignition sources such as diesel engines, oil fired burner, etc. are contained and engineers or crews may occupy for a considerable time.
(1) For the engine room: each 1 set for the engine control room and the work shop and 2 sets along the escape route including 1 set installed at the foot of escape ladder other than the escape trunk. Special consideration will be given based on the layout of the machinery space, however, 3 sets of EEBDs should be provided as a minimum.
(2) For the machinery space of category A other than engine rooms: I set along the escape route. Where easy escape to a safe space is surely expected, EEBD is not required.
|
