BS ISO 13122-2013 Ships and marine technology Launching appliances for davit-launched liferafts《船舶与海洋技术 吊架降落救生筏用下水装置》.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 13122:2011Ships and marine technology Launching appliances fordavit-launched liferaftsBS ISO 13122:2011 BRITISH STANDARDNational forewordThis British Standard is the UK im

2、plementation of ISO 13122:2011.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.This publication does not

3、 purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 66175 4ICS 47.020.50Compliance with a British Standard cannot confer immunity fromlegal obliga

4、tions.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2013.Amendments issued since publicationDate Text affectedBS ISO 13122:2011Ships and marine technology Launching appliances for davit-launched liferaftsNavires et technologie marit

5、ime Engins de mise leau des radeaux de sauvetage sous bossoirs ISO 2011Reference numberISO 13122:2011(E)First edition2011-08-15ISO13122INTERNATIONAL STANDARDBS ISO 13122:2011ISO 13122:2011(E)COPYRIGHT PROTECTED DOCUMENT ISO 2011All rights reserved. Unless otherwise specified, no part of this publica

6、tion 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 address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20

7、Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in Switzerlandii ISO 2011 All rights reservedBS ISO 13122:2011ISO 13122:2011(E)Contents PageForeword ivIntroduction v1 Scope 12 Normative references .13 Terms and definitions .14 Performance .25 Design .36 Con

8、struction .46.1 General .46.2 Loose gears 46.3 Davit 46.4 Turning device 46.5 Winch 56.6 Automatic release hook .57 Operation and safety 68 Inspection and maintenance 69 Test methods 79.1 General .79.2 Loose gears 79.3 Winch 79.4 Launching appliances 810 Acceptance code .910.1 Prototype testing .910

9、.2 Production testing .1011 Marking .10 ISO 2011 All rights reserved iiiBS ISO 13122:2011ForewordISO (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

10、through ISO technical committees. 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 coll

11、aborates closely with the International 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 Stan

12、dards. Draft International 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

13、this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 13122 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee SC 4, Outfitting and deck machinery.ISO 13122:2011(E)iv ISO 2011 All ri

14、ghts reservedBS ISO 13122:2011IntroductionThis International Standard forms a code of practical interpretation and amplification of the requirements of the International Convention for the Safety of Life at Sea (SOLAS). It provides an identical basis for design, construction and acceptance of launch

15、ing appliances for davit-launched liferafts for use by ship-owners, shipbuilders and appropriate organizations.Automatic release hooks are usually considered as independent equipment for statutory survey and have to obtain type approval and undergo acceptance testing by the authorities or their dele

16、gates. There are special requirements for their design, construction and acceptance testing stipulated by the IMO (International Maritime Organization). It is therefore intended that an International Standard specific to the automatic hook be drafted separately.This International Standard is mainly

17、based on amendments to SOLAS 1974, dating from 1983 to 1996, and related IMO resolutions and protocols, in particular Resolutions MSC.47(66), MSC.48(66), MSC.81(70), MSC.216(82), MSC.218(82) and MSC.226(82). It also refers to IMO circulars MSC/Circ.12051)and MSC/Circ.12062).1) Guidelines for Develop

18、ing Operation and Maintenance Manuals for Lifeboat Systems.2) Measures to Prevent Accidents with Lifeboats.ISO 13122:2011(E) ISO 2011 All rights reserved vBS ISO 13122:2011BS ISO 13122:2011INTERNATIONAL STANDARD ISO 13122:2011(E)Ships and marine technology Launching appliances for davit-launched lif

19、erafts1 ScopeThis International Standard specifies requirements for the performance, design, construction, operation, safety, inspection, maintenance, and testing and acceptance of launching appliances for davit-launched liferafts (hereinafter referred to as “liferafts”) installed on a variety of se

20、a-going ships.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.ISO 15516, Shi

21、ps and marine technology Launching appliances for davit-launched lifeboatsISO 2944, Fluid power systems and components Nominal pressuresISO 4413, Hydraulic fluid power General rules and safety requirements for systems and their componentsISO 4414, Pneumatic fluid power General rules and safety requi

22、rements for systems and their componentsIEC 60092 (all parts), Electrical installations in shipsIEC 60529, Degrees of protection provided by enclosures (IP Code)3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 15516 and the following apply.3.1non-loade

23、d liferaftliferaft fully equipped without persons3.2fully loaded liferaftliferaft fully equipped and loaded with a full complement of personsNOTE The mass of each person is taken as being 82,5 kg.3.3maximum working loadload assigned by the design applied to the release hook of a launching appliance

24、during launching of the maximum weight of the fully loaded liferaft it serves3.4recovering loadload assigned by the design applied to the release hook of a launching appliance during recovering of the maximum weight of the non-loaded liferaft it serves3.5maximum working load of winchmaximum load ass

25、igned by the design held by the falls at the winch drum when the launching appliance is launching or recovering the maximum working load ISO 2011 All rights reserved 1BS ISO 13122:20113.6hoisting load of winchload assigned by the design held by the falls at the winch drum when the launching applianc

26、e is hoisting the recovering load3.7davitmajor structure of the launching appliance, generally composed of frame, davit arm and fittings, etc.3.8winchmechanism of the launching appliance used for launching and recovering the liferaft3.9turning devicedevice of the launching appliance used for slewing

27、 or swinging the davit arm so as to bring the liferaft from inboard to outboard or vice versa3.10automatic release hookhook used for suspending the liferaft with the function of lowering and automatically releasing the liferaft when waterborne4 Performance4.1 A launching appliance shall depend only

28、on manpower, gravity or stored mechanical power that is independent of the ships power supplies to safely turn out the non-loaded liferaft it serves from inboard to full outboard, ready for embarking and lowering the liferaft with the ship against a trim of up to 10 and list of up to 20 either way.4

29、.2 A launching appliance shall not depend on any means other than gravity or stored mechanical power independent of the ships power supplies to lower the liferaft it serves with the ship against a trim of up to 10 and list of up to 20 either way.4.3 A launching appliance shall be capable of safely l

30、owering the liferaft in a controlled manner, and the speed at which the liferaft is lowered to the water shall conform to Table 1.4.4 The loose gears and automatic release hook shall have sufficient total weight to overcome the friction in the davit reeving system, so as to lower freely the non-load

31、ed release hook (referred to hereinafter as “non-loaded hook”).4.5 A launching appliance shall be capable of manually recovering a non-loaded liferaft from the water to the deck with the ship on an approximately even keel.4.6 Where a launching appliance serves to launch several liferafts, a manually

32、 operated means for the rapid recovery of the non-loaded hook shall be provided; it shall be ensured that all the liferafts it serves capable of being lowered are brought to the water within 30 min for a passenger ship or 10 min for a cargo ship.In order to quickly bring the non-loaded hook to the n

33、ext liferaft, the launching appliance shall be provided additionally with a recovery pulling line.ISO 13122:2011(E)2 ISO 2011 All rights reservedBS ISO 13122:2011Table 1 Liferaft lowering speedCondition of liferaftLimitLowering speedSFully loaded liferaftLower limitS = 0,4 + 0,02HwhereS is the lower

34、ing speed in metres per second (m/s);H is the height in metres from the davit head to the waterline with the ship at the lightest seagoing condition, without consideration of trim and list given in 4.1, and with the davit arm in the full outboard position.Regardless of the values obtained using this

35、 equation, the maximum values shall not exceed 1 m/s, unless otherwise stipulated by the relevant authority.Upper limit 1,3 m/s, unless otherwise stipulated by the relevant authorityNon-loaded liferaft Lower limit 0,1 m/s, unless otherwise stipulated by the relevant authority5 Design5.1 A launching

36、appliance shall be constructed using materials that will not be damaged in stowage throughout an air temperature range of 30 C to +65 C.5.2 All materials exposed to weather shall possess excellent resistance to corrosion and deterioration, or shall be protected by galvanizing or other effective mean

37、s.5.3 The major structural components, such as davit arm, frame and sheave block, shall be made from materials such as steel plates, tubes or profiled bar that meet the requirements for seagoing conditions and have satisfactory weldability. Their minimum thickness shall be not less than 6 mm, unless

38、 they are of stainless materials with sea-water corrosion resistance.5.4 Loose gears such as lifting chains, shackles and eye plates shall be made of ductile materials; grey iron castings shall not be used.5.5 A launching appliance shall be designed to have the minimum safety factors in accordance w

39、ith Table 2, on the basis of the maximum load applied to those major parts and corresponding to the ultimate strength of their materials.Table 2 Minimum safety factorsLaunching appliance parts Minimum safety factorLoose gears, falls, release hook 6Davit arm, frame and their fittings 4,5Winch, turnin

40、g device 4,55.6 A launching appliance shall remain effective under the condition of icing.5.7 Launching appliances shall be constructed so as to reduce routine maintenance to a minimum. All parts requiring regular maintenance shall be readily accessible and easily maintained by the ships crew.ISO 13

41、122:2011(E) ISO 2011 All rights reserved 3BS ISO 13122:20116 Construction6.1 GeneralA launching appliance generally consists of loose gears, davit, turning gear, winch and automatic release hook, etc. It may be specifically designed for launching and recovering the liferaft, or as a combined launchi

42、ng appliance for multi-purpose functions, as long as those functions do not interfere with each other. Whatever the design, all relevant requirements for launching or recovering the liferaft are to be met by the launching appliance for conformance with this International Standard.Launching appliance

43、s shall be ready for immediate use at all times.6.2 Loose gears6.2.1 The falls used for hoisting and lowering the liferaft shall be rotation-resistant and of galvanized steel wire rope or others having high resistance to corrosion.6.2.2 Falls shall be long enough so that at least three dead turns of

44、 rope remain on the winchs drum after the liferaft has been successfully lowered to the water, with the ship in its lightest seagoing condition and under the unfavourable conditions of a trim of up to 10and list of up to 20 either way.6.2.3 The sheave diameter at the bottom of the sheave groove shal

45、l be at least 12 times the diameter of the falls, and the depth of the sheave groove shall be at least 1,5 times the diameter of the falls.A sheave cover with a small clearance between cover and sheave shall be provided to prevent the falls from coming out of the sheave groove.6.3 Davit6.3.1 During

46、turning-out of the davit to the full outboard position and with the ship under the unfavourable conditions of a trim of up to 10 and list of up to 20 either side, the davit arm and frame and their fittings shall be of sufficient strength to withstand a dynamic load caused by a lowering and braking o

47、f 1,1 times the maximum working load, and shall be able to withstand a static load of 2,2 times the maximum working load with the launching appliance in the worst-case trim and list conditions.6.3.2 The davit arm shall be so arranged that it has sufficient outreach to successfully lower the liferaft

48、 in a fully inflated condition to the water.6.4 Turning device6.4.1 The turning device may be designed to be power-driven or to be driven by stored mechanical power or manpower; nevertheless, all launching appliances shall be fitted with a turning device that can at least be driven by manpower. In t

49、urning out, the davit arm shall bring the non-loaded liferaft it serves to full outboard with the ship under unfavourable conditions of trim and list.6.4.2 Where the turning device is power-driven, it shall be fitted with a brake in order to stop the turning davit arm at the prescribed position with the ship under unfavourable conditions of trim and list.ISO 13122:2011(E)4 ISO 2011 All rights reservedBS ISO 13122:20116.5 Winch6.5.1 A winch may be designed to be electrically, hydraulically or pneumatically powered, or to b