1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 13742:2012Ships and marine technology Ships mooring and towingfittings Universal fairleadswithout upper rollerBS ISO 13742:2012 BRITISH STANDARDNational forewordThis Briti
2、sh Standard is the UK implementation of ISO 13742:2012.The UK participation in its preparation was entrusted to TechnicalCommittee SME/32/-/4, Ships and marine technology - Outfitting anddeck machinery.A list of organizations represented on this committee can beobtained on request to its secretary.T
3、his publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 69750 0ICS 47.020.50Compliance with a British Standard cannot confer i
4、mmunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2012.Amendments issued since publicationDate Text affectedBS ISO 13742:2012 ISO 2012Ships and marine technology Ships mooring and towing fittings Univers
5、al fairleads without upper rollerNavires et technologie maritime Corps-morts et ferrures de remorquage de navires Chaumards universels sans rouleau suprieurINTERNATIONAL STANDARDISO13742First edition2012-07-01Reference numberISO 13742:2012(E)BS ISO 13742:2012ISO 13742:2012(E)ii ISO 2012 All rights r
6、eservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the add
7、ress below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 13742:2012ISO 13742:2012(E) ISO 2012 All rights reserved iiiContents Pag
8、eForeword ivIntroduction v1 Scope 12 Normative references . 13 Terms and definitions . 14 Classification 14.1 Type . 14.2 Nominal sizes . 15 Dimensions . 26 Materials . 27 Construction . 28 Manufacturing and inspection . 29 Marking . 2Annex A (informative) Basis for strength assessment of universal
9、fairleads 14Bibliography .17BS ISO 13742:2012ISO 13742:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical commi
10、ttees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the I
11、nternational Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International
12、Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to the possibility that some of the elements of this document may be the su
13、bject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 13742 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee SC 4, Outfitting and deck machinery.iv ISO 2012 All rights reservedBS ISO 13742:2012ISO 13742:2012
14、(E)IntroductionThe universal fairlead is a type of ships mooring fitting installed on board to lead the mooring rope from the ships inboard to outboard.A universal fairlead without upper roller is used for vessels in which the mooring deck level is higher than quay side. ISO 2012 All rights reserved
15、 vBS ISO 13742:2012BS ISO 13742:2012Ships and marine technology Ships mooring and towing fittings Universal fairleads without upper roller1 ScopeThis International Standard specifies the design, size and technical requirements for universal fairleads without upper roller(s) installed to lead the moo
16、ring rope of a ship.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.IMO Circ
17、ular MSC/Circ.1175, Guidance on shipboard towing and mooring equipment3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1safe working loadSWLmaximum load in kN on the rope that should normally be applied in service conditions4 Classification4.1 Typ
18、eDepending on the construction, universal fairleads shall be classified as the following four types: type 3R: with one rope-passing opening; type 4RL: with one rope-passing opening with additional guide roller on left side; type 4RR: with one rope-passing opening with additional guide roller on righ
19、t side; type 5R: with two rope-passing openings.4.2 Nominal sizesThe nominal sizes, Dn, of universal fairleads are denoted by reference to the outside diameter of the main roller in millimetres, in terms of the nearest number drawn from a basic series of preferred numbers. For the universal fairlead
20、s having the same roller diameter, the alphabetical character is followed by the nominal size for the different SWL.The nominal sizes are:140, 160, 180, 200, 250, 300A, 300B, 400A, 400B and 400C.INTERNATIONAL STANDARD ISO 13742:2012(E) ISO 2012 All rights reserved 1BS ISO 13742:2012ISO 13742:2012(E)
21、5 DimensionsUniversal fairleads have dimensions and particulars in accordance with Tables 1, 2, 3 and 4, and Figures 1, 2, 3, 4 and 5.6 MaterialsThe materials of the following components are to be used for manufacturing the universal fairleads: Frame and other plates: weldable steel plates having a
22、yield point of not less than 235 N/mm2except frame with rope guide for nominal size 400A, 400B and 400C shall be made of weldable steel plates having a yield point of not less than 315 N/mm2. Roller: weldable steel plates having a yield point of not less than 235 N/mm2except rollers for nominal size
23、 400A, 400B and 400C shall be made of weldable steel plates having a yield point of not less than 315 N/mm2, or equivalent steel tubes. Axle: carbon steel having a yield point of not less than 345 N/mm2. Bush: brass or bronze or equivalent.7 Construction7.1 The rollers of the universal fairleads sha
24、ll be constructed from steel tubes or formed from plate.7.2 The foundation of the universal fairleads shall be determined by the manufacturer. The foundation and welding connections to the hull shall be guaranteed reliable transmission of the maximum loading of the universal fairleads to hull constr
25、uction without any plastic deformation or cracks.8 Manufacturing and inspection8.1 All surfaces of the universal fairleads including welding shall be free from any visible flaws or imperfections.8.2 All surfaces in contact with the ropes shall be free from surface roughness or irregularities likely
26、to cause damage to the ropes by abrasion.8.3 The universal fairleads are to be coated externally with an anti-corrosion protective finish.8.4 All rotating parts shall be provided with greasing.9 Marking9.1 The safe working load (SWL) intended for the use of the universal fairleads shall be noted in
27、the towing and mooring plan available on board for the guidance of the shipmaster as specified in MSC/Circ.1175. 9.2 The actual SWL on board shall be determined by considering the foundation and under deck reinforcement, and it shall be marked on the towing and mooring plan. The actual SWL shall not
28、 be over the SWL indicated in this International Standard.9.3 The universal fairleads shall be clearly marked with its SWL by weld bead or equivalent. The SWL shall be expressed in tonnes (letter t) and be placed so that it is not obscured during operation of the fitting.EXAMPLE SWL XXX t2 ISO 2012
29、All rights reservedBS ISO 13742:2012ISO 13742:2012(E)Dimensions in millimetres ISO 2012 All rights reserved 3BS ISO 13742:2012ISO 13742:2012(E)Key1 frame with rope guide2 vertical rollers with housing and washers3 lower horizontal roller with washers4 vertical axles with stopper5 lower horizontal ax
30、le with stoppersaHeight of seat shall be determined in accordance with the hull construction design.b For nominal size 250 and above.cFor nominal size 140 to 200 only.dSide shell.eFor nominal size 300 and above.Figure 1 Assembly of type 3R universal fairleads4 ISO 2012 All rights reservedBS ISO 1374
31、2:2012ISO 13742:2012(E)Dimensions in millimetres ISO 2012 All rights reserved 5BS ISO 13742:2012ISO 13742:2012(E)Key1 frame with rope guide2 vertical rollers with housing and washers3 lower horizontal roller with washers4 vertical axles with stopper5 lower horizontal axle with stoppers6 for type 4RL
32、7 for type 4RRaHeight of seat shall be determined in accordance with the hull construction design.b For nominal size 250 and above.cFor nominal size 140 to 200 only.dSide shell.eFor nominal size 300 and above.NOTE Details are not shown in this figure. Refer to Figure 1.Figure 2 Assembly of type 4RL
33、and 4RR universal fairleadsTable 1 Dimensions and SWL of type 3R, 4RL and 4RR universal fairleadsDimensions in millimetresNominal sizeDnB H D1h1h2b b1b2b3b4w c140 195 150 139,8 130 350 335 515 656 780 140 260 150160 200 150 165,2 145 378 365 570 730 870 140 310 175180 200 150 190,7 155 400 391 620 8
34、00 950 140 360 200200 200 150 216,3 170 428 416 675 896 1 060 140 410 225250 250 200 267,4 195 530 517 825 1 046 1 220 180 520 280300A 300 250 318,5 220 630 618 980 1 206 1 420 200 620 330300B 300 250 318,5 220 630 618 980 1 206 1 420 200 620 330400A 350 250 406,4 265 720 756 1 210 1 450 1 680 200 7
35、95 420400B 350 250 406,4 265 720 756 1 210 1 450 1 680 200 795 420400C 350 250 406,4 265 720 756 1 210 1 450 1 680 200 795 4206 ISO 2012 All rights reservedBS ISO 13742:2012ISO 13742:2012(E)Table 1 (continued)Dimensions in millimetresNominal sizeDne w1w2T T1T2T3T4fWelding leg lengtha,bSWLcCalculated
36、 weightd(kg)z1z2(kN) (t) 3R 4R140 70 - - 12 8 10 12 12 3 6 4 137 14 101 126160 83 - - 14 8 10 14 14 3 6 4 196 20 140 176180 95 - - 16 8 12 16 16 3 6 4 245 25 181 226200 108 - - 18 10 12 18 18 3 7 4 314 32 246 305250 133 - 150 22 14 14 20 20 4 10 5 510 52 585 731300A 159 80 150 24 16 16 24 22 6 11 7
37、687 70 780 945300B 159 80 150 26 18 18 24 22 6 13 7 736 75 852 1 029400A 203 100 150 26 18 18 32 28 6 13 7 981 100 1 245 1 506400B 203 100 150 28 18 20 32 28 6 13 7 1 256 128 1 353 1 648400C 203 100 150 30 20 22 32 28 7 14 8 1 373 140 1 464 1 780aWelding with chamfering is available based on the sam
38、e welding volume/strength.bWelding otherwise mentioned in the figures above and in this table: minimum leg length is to be 1/2 of thinner plate thickness.cThe SWL is the maximum applicable rope tension.The SWLs shown in this table are for reference only. These are based on the loadings as mentioned
39、in Annex A.The “SWL” may be adjusted depending on the actual loading conditions, and the actual marking is to be per the agreement between the user and the manufacturer.dThe calculated weight is for reference excluding foundation. ISO 2012 All rights reserved 7BS ISO 13742:2012ISO 13742:2012(E)Dimen
40、sions in millimetres8 ISO 2012 All rights reservedBS ISO 13742:2012ISO 13742:2012(E)Key1 frame with rope guide2 vertical rollers with housing and washers3 lower horizontal roller with housing and washers4 vertical axles with stopper5 lower horizontal axle with stoppersa Height of seat shall be deter
41、mined in accordance with the hull construction design.b For nominal size 250 and above.cFor nominal size 140 to 200 only.dSide shell.Figure 3 Assembly of type 5R universal fairleadsTable 2 Dimensions and SWL of type 5R universal fairleadsDimensions in millimetresNominal sizeDnB H D1h1h2b b1b2b3b4w c
42、140 195 150 139,8 130 350 335 850 1 000 1 140 140 260 150160 200 150 165,2 145 378 365 935 1 100 1 260 140 310 175180 200 150 190,7 155 400 391 1 011 1 200 1 360 140 360 200200 200 150 216,3 170 428 416 1 091 1 320 1 480 140 410 225250 250 200 267,4 195 530 517 1 342 1 580 1 740 180 520 280300A 300
43、250 318,5 220 630 618 1 598 1 840 2 100 200 620 330300B 300 250 318,5 220 630 618 1 598 1 840 2 100 200 620 330400A 350 250 406,4 265 720 756 1 966 2 250 2 500 200 795 420400B 350 250 406,4 265 720 756 1 966 2 250 2 500 200 795 420400C 350 250 406,4 265 720 756 1 966 2 250 2 500 200 795 420 ISO 2012
44、 All rights reserved 9BS ISO 13742:2012ISO 13742:2012(E)Table 2 (continued)Dimensions in millimetresNominal sizeDne w1w2T T1T2T3T4fWelding leg lengtha,bSWLcCalculated weightd(kg)z1 z2 (kN) (t)140 70 30 50 12 12 12 12 12 6 9 7 137 14 177160 83 40 50 14 14 16 14 14 6 10 7 196 20 253180 95 40 50 16 16
45、18 16 16 6 11 7 245 25 333200 108 50 50 18 18 20 18 18 6 13 7 314 32 442250 133 65 150 22 22 24 20 20 8 15 9 510 52 1 015300A 159 80 150 24 24 26 24 22 8 17 9 687 70 1 348300B 159 80 150 26 26 28 24 22 8 18 9 736 75 1 453400A 203 100 150 26 26 32 32 28 10 18 10 981 100 2 146400B 203 100 150 28 28 40
46、 32 28 10 20 10 1 256 128 2 382400C 203 100 150 30 30 42 32 28 10 21 10 1 373 140 2 551aWelding with chamfering is available based on the same welding volume/strength.bWelding otherwise mentioned in the figures above and in this table: minimum leg length is to be 1/2 of thinner plate thickness.cThe
47、SWL is the maximum applicable rope tension.The SWLs shown in this table are for reference only. These are based on the loadings as mentioned in Annex A.The “SWL” may be adjusted depending on the actual loading conditions, and the actual marking shall be agreed between the user and the manufacturer.d
48、The calculated weight is for reference excluding foundation.Dimensions in millimetresa) Vertical rollerb) Lower support for vertical roller10 ISO 2012 All rights reservedBS ISO 13742:2012ISO 13742:2012(E)c) Horizontal rollerd) Type 5R horizontal rollere) Support for type 5R horizontal rollerKey1 ver
49、tical roller2 upper washer for vertical roller3 bushes for vertical roller4 lower washer for vertical roller5 horizontal roller6 bushes for horizontal rollers7 washers for horizontal rollersaGrease nipple shall be sunken to avoid rope damage.Figure 4 Assembly of rollers ISO 2012 All rights reserved 11BS ISO 13742:2012ISO 13742:2012(E)Table 3 Dimensions of rollersDimensions in millimetresNominal sizeDnVertical roller Lower horizontal rollerD t L D
