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1、IACS INTERNATIONAL ASSOCIATION OF CLASSIFICATION SOCIETIES FORM 1 Notice of Reservations filed for IACS Unified Requirements as at June 2005 Page 1 UR A1 Equipment URClauseSociety ReservationVersion A1 A1.2ABSFor ships less than 40 m in length, ABS Rules allow with certain conditions wire ropes in l
2、ieu of chains. 1981 A1 A1.3.1ABSABS requirements for anchoring equipment for tugs of unrestricted service are less than prescribed in UR A1.3.1. 3/1994 UR D3 General Design Parameters URClauseSociety ReservationVersion D3D3.7LRThe latest LR Policy is not to include detailed stability requirements in
3、 the Rules since stability is a Flag requirement. Corr July 2002 (Rev.4 1996) D3D3.8LRThe latest LR Policy is not to include detailed stability requirements in the Rules since stability is a Flag requirement. Corr July 2001 (Rev.4 1996) D3D3.9.2LRDetailed requirements for geometric freeboard computa
4、tions are not included in the Rules since the assignment of freeboards is a Flag requirement. Corr. July 2001 (Rev.4 1996) UR D4 Self-elevating drilling units URClauseSociety ReservationVersion D4D4.4LRDamage stability requirements are not included in the Rules and the extent of defined damage is to
5、 be in accordance with Flag requirements. 2/1996 UR D5 Column stabilized drilling units URClauseSociety ReservationVersion D5D5.6LRDamagg stability requirements are not included in the Rules and the extent of defined damage is to be in accordance with Flag requirements. 3/1996 UR D6 Surface type dri
6、lling units URClauseSociety ReservationVersion D6D6.4LRDamage stability requirements are not included in the Rules and the extent of defined damage is to be in accordance with Flag requirements. 1979 UR D8 Hazardous areas URClauseSociety ReservationVersion D8D8.2.4(a)(i) LRGas-tight door to be self-
7、closing in LRs Rules.2/1996 D8D8.2.4(c)LRLast paragraph. Single self-closing gas-tight door not acceptable in LRs Rules. 2/1996 IACS (Printed on 21/7/2005) Page 2 UR D9 Machinery URClauseSociety ReservationVersion D9D9.6.5LRPortable means of draining chain lockers only permitted for self-elevating u
8、nits in LR Rules. 2/1990 D9D9.7LRGeneral requirements to prevent progressive flooding is included in LR Rules but specific requirements for damage stability are to be in accordance with Flag requirements. 2/1990 UR E7 Cables and insulated wires URClauseSociety ReservationVersion E7E7.1LRLR does not
9、require cable to be type approved.2/June 2000 E7E7.2LRLRs Rules refer to IEC publication 92 but do not detail the particular parts of the publication; this is considered unnecessary. Considerable change/revision of the parts is constantly being undertaken which would require excessive revisions to t
10、he Rules. 2/June 2000 E7E7.3LRLRs Rules refer to IEC publication 92 but do not detail the particular parts of the publication; this is considered unnecessary. Considerable change/revision of the parts is constantly being undertaken which would require excessive revisions to the Rules. 2/June 2000 UR
11、 E10 Unified environmental test specification for testing procedure for electrical control and instrumentation equipment, marine computers and peripherals covered by classification URClauseSociety ReservationVersion E10E.10.1ABSNot applied to all internal communication equipment as listed in 10.1. 4
12、/May/2004 UR E11 Unified requirements for high voltage systems URClauseSociety ReservationVersion E11E11LRImplemented in part. LR Rule requirements do not make a special case of high voltage systems. Rev.2/July 2003 UR E13 The Harmonisation of Testing Requirements of Classification Societies URClaus
13、eSociety ReservationVersion E13E13.3 table 1 -Note 4 DNV rules also accept alternatives to the oil mist detector -Table 1 Item 3 “Turbocharger lub. Oil outlet temp each bearing“; DNV rules do not specify “each bearing“ -Table 1 Item 6 “Oily contamination of engine cooling water system“; This is not
14、indicated in the DNV rules -Table 1 Item 8 “Scavenge air system“; DNV rules does not indicate scavenge air receiver water level -Table 1 Item 11 “Direction of rotation, wrong way“; DNV rules do not specify indication of “direction of rotation“ or alarm for “wrong way“ -Table 2 Item 2 “Oil mist conce
15、ntration in crankcase“; DNV rules accept also alternatives to the oil mist detector v4, Mar 1999 UR M44 Documents for the approval of diesel engines URClauseSociety ReservationVersion M44M44DNVPartly introduced. -Item 22: Material specifications of main parts with information on NDT and pressure tes
16、ts. DNV rules request this, but in general for information only, not for approval. NDT is required for approval only for crankshafts and connecting rods. -Item 27: Cooling water system. DNV rules request this, but for information only, not for approval. May 2004 UR M50: Programme for type testing of
17、 non-mass produced IC engines URClauseSociety ReservationVersion M50M50DNVPartly introduced. DNV rules do not request “Lowest engine speed“, “starting test“ and “governor test“ as part of “functional tests“ 1999 UR M51 Programme for trials of i.c. engines URClauseSociety ReservationVersion M51M51.2.
18、1.3b ABSTest at 110% power for 30 minutes is not in ABS Rules.1987 M51M51.2.1.4ABS4 hour period is required by the ABS Rules only for main generators. 1987 M51M51.2.2ABSThis paragraph for special operating conditions is not in the ABS Rules. 1987 M51M51DNVPartly introduced. -25% test is taken out in
19、 the DNV rules. -Reduced testing hours in DNV rules for small main engines. -For aux. engines, DNV rules specify test time 1 hour, while IACS require 4 hours. 2/July 2003 UR M52: Length of aft stern bush bearing URClauseSociety ReservationVersion M52M52DNVPartly introduced. DNV rules do not indicate
20、 any direct lower limit for bearing length. This length however, will be limited by load and damping characteristics wrt. whirling. 1986 UR M56 Marine Gears - Load Capacity of Involute Parallel Axis Spur and Helical Gears URClauseSociety ReservationVersion IACS (Printed on 21/7/2005) Page 8 M56M56DN
21、VPartly introduced. DNV use and accept alternative criteria for calculation of gears. Very much in line with recognised international standards. Corr.1/1996 M56M56.1.2RINARINA does not consider design approval of gears having rating less than 220 kw for main propulsion or 110n kw for essential servi
22、ce auxiliaries necessary, taking into account that they are mass produced according to standardized design criteria widely experienced in service and built by specialized manufacturers. RINA, in any case, requires factory acceptance tests and sea trials to be performed for gears intended for main pr
23、opulsion and essential auxiliaries. Rev.1/1994 Corr. 1996 UR M58 Charge air coolers URClauseSociety ReservationVersion M58M58DNVFull reservation. DNV rules do not request works material certificates, and accept hydraulic testing to be carried out at maximum working pressure only. 1994 UR M59 Control
24、 and safety system for dual diesel engines URClauseSociety ReservationVersion M59M59DNVPartly introduced. UR M59 has been partly implemented in the DNV rules, do however not specifically list all requirements stated in the UR. (This applies to UR item nos. M59.3.1, 59.3.2 a) and b), 59.4.1, 59.8.1 a
25、nd 59.9.1.2.c. M59 will continue to be evaluated in WP/MCH. 1996 UR M60 Control and safety systems for gas turbines for marine propulsion URClauseSociety ReservationVersion IACS (Printed on 21/7/2005) Page 9 M60M60DNVPartly introduced. The DNV rules deviate slightly from IACS UR M60 concerning monit
26、oring requirements as follows: - Ref. UR M60.1.1. DNV rules do not require a specific maximum overspeed limit of 15%. DNV requirements are related to preventing the turbine speed from exceeding the maximum permissible speed as defined by the Manufacturer. - Ref. UR M60.1.2. DNV do not require separa
27、te speed governors for speed control and over speed protection. However, the control system must be capable of controlling the speed due to sudden turbine load drop without activating the over speed shut down function. - Ref. UR M60.2.2. DNV rules request “step to idle“ (not “shut down“) for h) “exc
28、essive high vacuum pressure at compressor inlet“. DNV rules have no action requirements related to exhaust temperature. DNV does not require automatic shut down due to item e) “excessive axial displacement“. DNV only require that applications which may experience thrust load directional variations m
29、ust be provided with an axial proximity probe in the high speed driven string. At the next rule revision DNV will implement a requirement for alarm in case of changed thrust load direction. DNV considers this to provide the highest vessel safety level, as shut-downs not strictly needed are detriment
30、al to vessel safety. - Ref. UR M603, table 1. DNV rules do not request alarm for “oil fuel temperature“ and “oil fuel supply pressure“. At the next rule revision DNV will implement a requirement for alarm related to low oil fuel temperature. This to be applicable for turbines running on oil fuels wh
31、ere oil fuel heaters are required to avoid viscosity problems. Dec 2003 UR M62: Rooms for emergency fire pumps in cargo ships URClauseSociety ReservationVersion M62M62ABSThe UR cannot be uniformly implemented until “adequately“ is quantified and therefore is not being implemented by ABS at this time
32、. Feb 2002 UR N1 One man bridge operated ships URClauseSociety ReservationVersion N1N1IRSRequirements concerning navigation are not part of IRS Rules. Also, there are no ships of this type in IRS class. 1992 UR P1 Rules for Pipes URClauseSociety ReservationVersion P1P1LRTable 4 relating to minimum w
33、all thickness of austenitic stainless pipes is applied in practice by LR. Table 5 will not be incorporated into LRs Rules in accordance with previously stated policy regarding the inclusion of statutory requirements in the Rules However, LR has no objection to applying the scantlings given when acti
34、ng on behalf of the flag administration on statutory matters. 4/June 2000 UR P2 Rules for Piping Design, Construction and Testing URClauseSociety ReservationVersion P2P2.5.5.5 & Table 4 ABSPost weld heat treatment for oxyacetylene welding is not in ABS Rules 1/1987 Nov/2001 P2Table 2 Notes 1&2 LRArr
35、angements would be subject to special consideration on a case-by-case basis. 3/1987 IACS (Printed on 21/7/2005) Page 10 UR P2.7: Rules for piping design, construction and testing, types of connections URClauseSociety ReservationVersion P2.7P2.7.4NKNK admits the use of slip-type slip-on joints to str
36、eam piping of which design pressure is 1.0 MPa or less, for cargo heating on open decks in tankers. 2/Nov 2001 UR S1 Loading guidance information (up to 3/1995) Requirements for Loading Conditions, Loading Manuals and Loading Instruments (for 4/1997 and later) URClauseSociety ReservationVersion S1No
37、tesRINARevision 2/1983: requirements relevant to the fitting of a loading instrument not applied retroactively to ships other than bulk carriers: - classified by RINA after their construction and - contracted for construction before 1 July 1998. 4/1997 UR S6 Use of steel grades for various hull memb
38、ers - ships of 90m in length and above URClauseSociety ReservationVersion S6S6.2 & 6.3 ABSUntil further experiences are gained, service temperatures cooler than -40C will be in the Rules as guidance. Design temperature for imembers in the current ABS Rules is being retained pending unification of po
39、lar ship requirements. 2/1996 S6S6.2+6.3RSRS has implemented UR S6 with regard to item 6.1 only. The national requirements similar to S6.2 are implemented in RS Rules. 2/1996 3/May 2002 4/July 2003 UR S7 Minimum Longitudinal Strength Standards URClauseSociety ReservationVersion S7S7.1RSWith respect
40、to item S7.1, RS uses different criteria for ships in service for calculating minimum longitudinal strength standards. This reservation however does not apply to tankers with length over 130 m. 3/1989 UR S10 Unified Method for Calculating the Diameter of the Upper Rudder Stock URClauseSociety Reserv
41、ationVersion S10S10.8.3GLFor self-lubricating bearings, clearances less than 1.5 mm on diameter may be accepted on the basis of the manufacturers specification. Rev.1. Corr. 1999 S10RSPartially implemented, but rudder strength calculation method in RS Rules is more detailed and universal. 1/1990 Cor
42、r.July 2003 UR S11 Longitudinal Strength Standard URClauseSociety ReservationVersion S11S11.5ABSFor certain type/size ships, ABS accepts alternate approach involving ultimate strength assessment. 1/1993 S11S11.5BVBuckling strength has not been implemented. Equivalent criteria have been introduced to
43、 be coherent with other parts of BV Rules with regard to loads and corrosion margins. 1/1993 S11S11.5GLGL reserves its position to perform buckling strength calculations on the basis of DIN 18800. Rev.4/July 2004 IACS (Printed on 21/7/2005) Page 11 S11 S11.5NKStructural members subject to hull girde
44、r bending and shear stress applying in S11.5.1 for buckling strength have partly been applied in NK rules but all longitudinal members have not been applied. 4/July 2004 S11S11RINAThis UR S11 is substantially applied. In the Rules for the classification of ships effective from 1st June 2000, the UR
45、formulation has been modified to make it consistent with the general rule criteria, however without significant modifications to the final results. 1/1993 UR S12 Side Structures in Single Side Skin Bulk Carriers URClauseSociety ReservationVersion S12S12.11.3GLGL reserves its position to perform buck
46、ling strength calculations on the basis of DIN 18800. Rev.4/July 2004 UR S14 Testing Procedures of Watertight Compartments URClauseSociety ReservationVersion S14S14DNVPartly introduced. DNV has given a relaxation of the requirements for structural testing for the second and subsequent vessels in a s
47、eries, but this relaxation does not apply to Oil Tankers and Chemical Tankers. Structural testing is time consuming and expensive, and it is questionable as to wether it contributes to the safety of the vessel ehen the first vessel in a series has already been structurally tested. In addition, the r
48、elaxation of structural testing reflects the industry standard for oil tankers. Therefore the relaxation will be applied for all vessels except those with the class notation Tanker for Chemicals ESP 2/May 2001 S14S14.2.2LRLeak testing is to be carried out, prior to the application of a protective co
49、ating, on all fillet welds and erection welds on tank boundaries and on all outfitting penetrations. Automatic and semi-automatic (FCAW) butt welds of the erection joints need not be tested, provided that the visual examination show continuous uniform weld profile shape, free from repairs, and the results of selected NDE testing show no significant defects Rev.1/1996 Feb 2001 S14Table I item 4. LR The tank testing requirement is not to be less than the head up to the top of the hatch coaming 1996/Re.1 Feb 2001 S14S14.3NKNK has partly implemented this UR because some requirements which
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