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1、INTERNATIONAL ASSOCIATION OF CLASSIFICATION SOCIETIES Requirements concerning FIRE PROTECTION IACS Req. 2005 Contents, Page 1 CONTENTS F1Cathodic protection on oil tankersRev. 1 June 2002 F2Aluminium coatings on board oil tankers and chemical tankers Rev. 1 May 1998/Corr.1 March 1999 F3Tank cleaning
2、 openings1971 F4Deleted 1987 F5Pump room alarmsRev. 11973 F6Standardization of flash pointsRev. 11996 F7Portable instruments for measuring oxygen and flammable vapour concentrationsRev. 2 May1999 F8Pressurisation of cargo tanksRev. 11989 F9Lighting and sighting ports in pump room/engine room bulkhea
3、ds1971 F10Deleted 1986 F11Deleted 1986 F12Deleted F13Gland seals in pump room bulkheadsRev. 11977 F14Deleted 1996 F15Piping passing through dangerous zonesRev. 51996 F16Bow and stern loading and unloading arrangements on oil tankersRev. 1 June 2000 F17Deleted 1996 F18Deleted 1997 F19Deleted 1988 F20
4、Inert gas systemsRev. 3 May 1998/Rev.5 Nov 2005 F21Pump room ventilation1974 F22Direct loading pipes to oil tanker cargo tank1974 F23Deleted 1996 F24Temperature of Steam and Heating Media within the Cargo AreaRev. 21998 IACS Req. 2005 Contents, Page 2 F25Deleted 1987 F26Safety aspects of double bott
5、oms and duct keels under cargo Rev.3 May 2004 oil tanks F27Cargo opening in the bottoms of topside tanks of ships carrying1978 alternatively oil and grain F28Deleted 1987 F29Non-sparking fans Rev.6 June 2005 F30Deleted - Feb 2002 F31Deleted F32Fire detecting system for unattended machinery spaces197
6、6 F33Prohibition of carriage in forepeak tanks of oil or other liquid substances1981 which are flammable F34Low-pressure carbon dioxide smothering systemsRev. 11989 F35Fire protection of machinery spacesRev.8 June 2005 F36Deleted 1989 F37DELETED - May 1998 F38DELETED - May 1998 F39Deleted - July 200
7、2 F40Deleted 1997 F41Sea intakes for fire pumps on ships with ICE class1993 F42Fire testing of flexible pipes1995 F43Installation Requirements for analysing units for continuous monitoring of flammable vapours Rev.2 Jun 2002 F44Fore peak ballast system on oil tankersJune 2000 See also M24 and Recomm
8、endations Nos. 1 and 3 IACS Req. 2005 F1F3 Cathodic protection on oil tankers F1.1Impressed current systems are not permitted in oil cargo tanks. F1.2Magnesium or magnesium alloy anodes are not permitted in oil cargo tanks and tanks adjacent to cargo tanks. F1.3Aluminium anodes are only permitted in
9、 cargo tanks and tanks adjacent to cargo tanks in locations where the potential energy does not exceed 28 kg m (200 ft lb). The height of the anode is to be measured from the bottom of the tank to the centre of the anode, and its weight is to be taken as the weight of the anode as fitted, including
10、the fitting devices and inserts. However, where aluminium anodes are located on horizontal surfaces such as bulkhead girders and stringers not less than 1 m wide and fitted with an upstanding flange or face flat projecting not less than 75 mm above the horizontal surface, the height of the anode may
11、 be measured from this surface. Aluminium anodes are not to be located under tank hatches or Butterworth openings (in order to avoid any metal parts falling on the fitted anodes), unless protected by adjacent structure. F1.4There is no restriction on the positioning of zinc anodes. F1.5The anodes sh
12、ould have steel cores and these should be sufficiently rigid to avoid resonance in the anode support and be designed so that they retain the anode even when it is wasted. F1.6The steel inserts are to be attached to the structure by means of a continuous weld of adequate section. Alternatively they m
13、ay be attached to separate supports by bolting, provided a minimum of two bolts with locknuts are used. However, approved mechanical means of clamping will be accepted. F1.7The supports at each end of an anode should not be attached to separate items which are likely to move independently. F1.8When
14、anode inserts or supports are welded to the structure, they should be arranged so that the welds are clear of stress raisers. Aluminium Coatings on Board Oil Tankers and Chemical Tankers The use of aluminium coatings is prohibited in cargo tanks, cargo tank deck area, pump rooms, cofferdams or any o
15、ther area where cargo vapour may accumulate. Aluminised pipes may be permitted in ballast tanks, in inerted cargo tanks and, provided the pipes are protected from accidental impact, in hazardous areas on open deck. Tank cleaning openings Ullage plugs, sighting ports and tank cleaning openings are no
16、t to be arranged in enclosed spaces. F1 (1971) (Rev.1, June 2002) IACS Req. 1998/Rev. 1, 2002 F2 (1971) (Rev. 1 May 1998)/ Corr.1, March 1999 M M M M F3 (1971) M M F4F5 Deleted Pump room alarms Where audible alarms are fitted to warn of the release of fire extinguishing medium into pump rooms, they
17、may be of the pneumatic type or electric type. (a)Pneumatically operated alarms In cases where the periodic testing of such alarms is required,CO2operated alarms should not be used owing to the possibility of the generation of static electricity in the CO2cloud. Air operated alarms may be used provi
18、ded the air supply is clean and dry. (b)Electrically operated alarms When electrically operated alarms are used, the arrangements are to be such that the electric actuating mechanism is located outside the pump room except where the alarms are certified intrinsically safe. It was further agreed that
19、 the use of CO2operated alarms should be discouraged. F4 IACS Req. 1987 F5 (1971) (Rev. 1 1973) M M M M F6 Standardization of flash points In context of these Unified Requirements, oil tankers shall be considered as vessels capable of carrying oil having a flash point not exceeding 60C (closed cup t
20、est). IACS Req. 1971/Rev 1 1996 F6 (1971) (Rev 1 1996) M M F7 Portable instruments for measuring oxygen and flammable vapour concentrations Every oil tanker is to be provided with at least two portable gas detectors capable of measuring flammable vapour concentrations in air and at least two portabl
21、e O2 analysers. In addition, for tankers fitted with inert gas systems, at least two portable gas detectors are to be capable of measuring concentrations of flammable vapours in inerted atomosphere. IACS Req. 1999 F7 (1971) (Rev. 1 1989) (Rev.2 May 1999) M M Pressurisation of cargo tanks PV valves t
22、o oil tanks should not be set at pressures in excess of 0,21 bar unless the tank scantlings have been specially considered. Lighting and sighting ports in pump room/engine room bulkheads F9.1Where the pump room is illuminated through glazed ports, these are to be effectively protected from mechanica
23、l damage and are to have strong covers secured from the side of the sage space. F9.2Glazed ports are to be so constructed that glass and sealing will not be impaired by the working of the ship. F9.3The glass and the protection of the light fitting are not to impair the integrity of the bulkhead and
24、are to be of equivalent strength. F9.4The fitting is to have the same resistance to fire and smoke as the unpierced bulkhead. Deleted Deleted Deleted IACS Req. 1989 F8 (1971) (Rev. 1 1989) F9 (1971) F10 F11 F12 M M M M M M M M M M F8-F12 F13 Gland seals in pump room bulkheads Where drive shafts pass
25、 through pump room bulkhead or deck plating, gastight glands are to be fitted. The glands are to be efficiently lubricated from outside the pumproom. The seal parts of the glands are to be of material that will not initiate sparks. The glands are to be constructed and fitted in accordance with the r
26、elative rules for fittings attached to watertight bulkheads, and if a bellows piece is incorporated in the design, it should be pressure tested before fitting. F13 (1972) (Rev. 1 1977) IACS Req. 1989 M M F14 Deleted - the requirements are now addressed by IMO Res. A.446 (XI) F14 IACS Req. 1989/Rev 1
27、996 M M F15 Piping passing through dangerous zones F15.1Ballast piping passing through cargo tanks and cargo oil pipes passing through segregated ballast tanks, as permitted by MARPOL Annex 1 Reg. 13F, are to comply with the following requirements. F15.1.1 The pipes are to be of heavy gauge steel of
28、 minimum wall thickness according to the table hereunder with welded or heavy flanged joints the number of which is to be kept to a minimum. Expansion bends only (not glands) are permitted in these lines within cargo tanks for serving the ballast tanks and within the ballast tanks for serving the ca
29、rgo tanks. Nominal diameterMinimum wall (mm)thickness (mm) 506,3 1008,6 1259,5 15011,0 200 and above12,5 F15.2The thicknesses shown in the above table refer to carbon steel. F15.3Connection between cargo piping and ballast piping referred to above is not permitted except for emergency discharge as s
30、pecified in the Unified Interpretation to Reg. 1 (17) of MARPOL 73/78, Annex 1. Nevertheless, provision may be made for emergency discharge of the segregated ballast by means of a connection to a cargo pump through a portable spool piece. In this case non-return valves should be fitted on the segreg
31、ated ballast connections to prevent the passage of oil to the ballast tanks. The portable spool piece should be mounted in a conspicuous position in the pump room and a permanent notice restricting its use should be prominently displayed adjacent to it. Shut-off valves shall be provided to shut off
32、the cargo and ballast lines before the spool piece is removed. F15.4The ballast pump is to be located in the cargo pump room, or a similar space within the cargo area not containing any source of ignition. IACS Req. 1982/Rev 5. 1996 M M F15 (1982) (Rev. 4 1989) (Rev 5. 1996) F15-1 Bow and stern load
33、ing and unloading arrangements on oil tankers Where a cargo hose connection is arranged outside the cargo tank area, the pipe leading to such connections is to be provided with means of segregation such as a spectacle flange, removable spool piece or equivalent* located within the cargo area. The sp
34、ace within 3 m of the manifold is to be considered as a dangerous area with regard to electrical or incendive equipment. * See MSC/Circ. 474. 16 IACS Req. 1972/Rev.1 2000 M M F16 (1972) (Rev.1 June 2000) F17 Deleted - this is of a general nature concerning operational matters and should not be categ
35、orosed as UR. F17 IACS Req. 1986/Rev 1996 M M F18-19 Deleted (1997) Deleted F18 IACS Req. 1997 M F19 M M M Inert Gas Systems F20.1General Requirements F20.1.1 All types of inert gas systems are to comply with the following: .1Plans in diagrammatic form are to be submitted for appraisal and should in
36、clude the following: -details and arrangement of the inert gas generating plant including all control and monitoring devices; -arrangement of the piping system for distribution of the inert gas. .2An automatic control capable of producing suitable inert gas under all service conditions is to be fitt
37、ed. .3Materials used in inert gas systems are to be suitable for their intended purpose in accordance with the Rules of the Classification Society. .4All the equipment is to be installed on board and tested under working conditions to the satisfaction of the Surveyor. .5Subsequent surveys are to be
38、carried out at the intervals required by the Classification Society Rules. F20.2 Inert Gas Systems on Tankers Carrying Crude Oil and Petroleum Products F20.2.1 The following requirements apply where an inert gas system based on boiler flue gas and oil fired inert gas generators is fitted on board ta
39、nkers intended for the carriage of crude oil and petroleum products in bulk having a flashpoint not exceeding 60C (closed cup test) as determined by an approved flashpoint apparatus, and a Reid vapour pressure which is below atmospheric pressure, and other liquid products having a similar fire hazar
40、d. F20.2.2 The inert gas system is to comply with the requirements of Ch. 15 of the FSS Code, insofar as they are applicable to new ships only. Any use of the word “Administration“ in the Regulation is to be considered as meaning the relevant Classification Society. F20.2.3 In addition to the requir
41、ements detailed in Ch. 15 of the FSS Code, the following is to be complied with: .1When two blowers are provided, the total required capacity of the inert gas system is preferably to be divided equally between the two blowers, and in no case is one blower to have a capacity less than 1/3 of the tota
42、l capacity required. .2In particular those parts of scrubbers, blowers, non-return devices, scrubber effluent and other drain pipes which may be subjected to corrosive action of the gases and/or liquids are to be either constructed of corrosion resistant material or lined with rubber, glass fibre ep
43、oxy resin or other equivalent coating material. .3The compartment in which any oil fired inert gas generator is situated is to be treated as machinery space of Category A with respect to fire protection. _ F20 IACS Req. 1997, Rev.5 2005 F20 (1984) (Rev.1 1983 (Rev. 2 1987) (Rev. 3 May,1998) (Corr. S
44、ept.2001) (Rev.4 May 2004) (Rev.5 Nov. 2005) F20-1 Revision Note: Revision 4 only updates references. .4Arrangements are to be made to vent the inert gas from oil fired inert gas generators to the atmosphere when the inert gas produced is off specification, e.g., during start-up or in the event of e
45、quipment failure. .5Automatic shut-down of the oil fuel supply to inert gas generators is to be arranged on predetermined limits being reached with respect to low water pressure or low water flow rate to the cooling and scrubbing arrangement and with respect to high gas temperature. .6Automatic shut
46、-down of the gas regulating valve is to be arranged with respect to failure of the power supply to the oil fired inert gas generators. F20.3 Inert Gas Systems on Chemical Tankers F20.3.1 The following requirements apply where an inert gas system based on oil fired inert gas generators is fitted on b
47、oard chemical tankers. F20.3.2 The inert gas system is to comply with the requirements of Resolution A.567(14). Any use of the word “Administration“ in the Resolution is to be considered as meaning the relevant Classification Society. F20.3.3 As an alternative to the water seal in the inert gas line
48、 on deck, an arrangement consisting of two shut-off valves in series with a venting valve in between may be accepted (double block and bleed) . The following conditions apply: - The operation of the valve is to be automatically executed. Signal(s) for opening/closing is (are) to be taken from the pr
49、ocess directly, e.g. inert gas flow or differential pressure. - Alarm for faulty operation of the valves is to be provided, e.g. the operation status of “Blower stop“ and “supply valve(s) open“ is an alarm condition. F20.3.4 In addition to the requirements detailed in Resolution A.567(14), the requirements for inert gas systems, contained in paragraphs F20.2.3.1 to F20.2.3.3, are to be complied with. F20.4 Nitrogen Generator
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