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1、BRITISH STANDARD BS EN 1677-5:2001 Components for slings Safety Part 5: Forged steel lifting hooks with latch Grade 4 The European Standard EN 1677-5:2001 has the status of a British Standard ICS 53.020.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffiel
2、dun sheffieldun, na, Fri Nov 17 08:41:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 1677-5:2001 This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 June 200
3、1 BSI 06-2001 ISBN 0 580 37435 1 National foreword This British Standard is the official English language version of EN 1677-5:2001. It supersedes BS 2903:1980 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee MHE/1, Chains and fittings, which has the r
4、esponsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the sectio
5、n entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. C
6、ompliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related internati
7、onal and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 19 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments is
8、sued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1677-5 April 2001 ICS 53.020.30 English version Components for slings Safety Part 5: Forged ste
9、el lifting hooks with latch Grade 4 Accessoires pour lingues Scurit Partie 5: Crochets de levage en acier forg linguet Classe 4 Einzelteile fr Anschlagmittel Sicherheit Teil 5: Geschmiedete Haken mit Sicherungsklappe Gteklasse 4 This European Standard was approved by CEN on 18 February 2001. CEN mem
10、bers are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on applicat
11、ion to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same
12、 status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR ST
13、ANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1677-5:2001 E Licensed Copy: sheffieldun sheffie
14、ldun, na, Fri Nov 17 08:41:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 1677-5:2001 BSI 06-2001 Contents Page Foreword3 Introduction4 1Scope4 2Normative references5 3Terms and definitions6 4Hazards6 5Safety requirements7 6Verification of safety requirements12 7Marking15 8Manufacturers cer
15、tificate15 9Instructions for use15 Annex A (informative) Bases for the calculation of hook dimensions16 Annex B (informative) Designation system for hooks Grade 417 Annex ZA (informative) Relationship of this document with EC Directives18 Bibliography19 Licensed Copy: sheffieldun sheffieldun, na, Fr
16、i Nov 17 08:41:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 1677-5:2001 BSI 06-2001 Foreword This European Standard has been prepared by Technical Committee CEN/TC 168, Chains, ropes, webbing, slings and accessories Safety, the Secretariat of which is held by BSI. This European Standard s
17、hall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2001, and conflicting national standards shall be withdrawn at the latest by October 2001. This European Standard has been prepared under a mandate given to CEN by
18、the European Commission and the European Free Trade Association, and supports essential requirements of EC Directive(s). For relationship with EC Directives, see informative annex ZA, which is an integral part of this standard. The other parts of EN 1677 for components for slings are: Part 1: Forged
19、 steel components Grade 8; Part 2: Forged steel lifting hooks with latch Grade 8; Part 3: Forged steel self-locking hooks Grade 8; Part 4: Links Grade 8; Part 6: Links Grade 4. Annexes A and B of this European Standard are informative. According to the CEN/CENELEC Internal Regulations, the national
20、standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Licens
21、ed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 1677-5:2001 BSI 06-2001 Introduction This European Standard has been prepared to be a harmonized standard providing one means of complying with the essential safety requirements of the Mach
22、inery Directive and associated EFTA regulations. The hooks covered by this part of EN 1677 are normally supplied to be part of a sling, but they may also be used for other applications. In such instances it is important that the hook design is checked to ensure its fitness for the intended use. The
23、extent to which hazards are covered is indicated in the scope. In addition, lifting equipment shall conform as appropriate to EN 292 for hazards that are not covered by this standard. 1 Scope This part of EN 1677 specifies requirements for forged steel lifting hooks of grade 4 having latch and eye u
24、p to 31,5 t WLL, mainly for use in: chain slings according to EN 818-5; steel wire rope slings according to prEN 13414-1:1998; textile slings according to EN 1492-1, EN 1492-2; intended for lifting objects, materials or goods. This part of EN 1677 does not apply to hand forged hooks. The hazards cov
25、ered by this part of EN 1677 are identified in clause 4. Annex A gives the bases for calculation of hook dimensions. Annex B gives an example of a designation system for hooks of grade 4. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page
26、5 EN 1677-5:2001 BSI 06-2001 2 Normative references This European Standard incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subs
27、equent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 292-1Safety of machinery Basic Concepts Ge
28、neral principles for design Part 1: Basic Terminology, methodology. EN 292-2:1991Safety of machinery Basic concepts General principles for design +A1:1995Part 2: Technical principles and specifications (Amendment A1:1995). EN 818-5Short-link chain for lifting purposes Safety Part 5: Chain slings Gra
29、de 4. EN 818-6Short link chain for lifting purposes Safety Part 6: Chain slings Specification for information for use and maintenance to be provided by the manufacturer. EN 1050:1996Safety of machinery Principles for risk assessment. EN 1492-1Textile slings Safety Part 1: Flat woven webbing slings m
30、ade of man-made fibres. EN 1492-2Textile slings Safety Part 2: Round slings made of man-made fibres. EN 10002-2:1991Metallic materials Tensile testing Part 2: Verification of the force measuring system of the tensile testing machines. EN 10025:1990Hot rolled products of non-alloy structural steels T
31、echnical delivery +A1:1993conditions. prEN 13414-1:1998Steel wire ropes for slings Safety Part 1: Wire rope slings. EN 45012General requirements for bodies operating assessment and certification/registration of quallity systems (ISO/IEC Guide 62:1996). EN ISO 9002:1994Quality systems Model for quali
32、ty assurance in production, installation and servicing. ISO 643:1983Steels Micrographic determination of the ferritic or austenitic grain size. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 6 EN 1677-5:2001 BSI 06-2001 3 Terms and def
33、initions For the purposes of this part of EN 1677, the following terms and definitions apply. 3.1 working load limit (WLL) maximum mass that a hook is authorized to sustain in general lifting service, expressed as a code NOTE This term has the same meaning as the term maximum working load used in an
34、nex A of EN 292-2:1991+A1:1995. 3.2 manufacturing proof force (MPF) force applied to the hook during the manufacturing proof test 3.3 breaking force (BF) maximum force reached during the static tensile test of the hook, at which the hook fails to retain the load 3.4 traceability code series of lette
35、rs and/or numbers marked on a hook that enables its manufacturing history, including the identity of the cast of steel used, to be traced 3.5 competent person designated person, suitably trained, qualified by knowledge and practical experience, and with the necessary instruction to enable the requir
36、ed test and examination to be carried out NOTE 4.18 of EN ISO 9002:1994 gives guidance on training. 3.6 lot specified number of hooks from which samples are selected for testing purposes, and that have been manufactured from the same cast of steel and subjected to the same heat treatment process 4 H
37、azards Accidental release of a load or, release of a load due to failure of a hook puts at risk, either directly or indirectly, the safety or health of those persons within the danger zone. In order to provide the necessary strength and durability of hooks, this part of EN 1677 gives requirements fo
38、r the design, manufacture and testing to ensure that specified levels of performance are met. Fatigue failure has not been identified as a hazard when grade 4 hooks having the specified levels of performance given in this standard are used for general lifting purposes. Since failure can be caused by
39、 the incorrect choice of grade and specification of hook, this part of EN 1677 also gives requirements for marking and the manufacturers certificate. Errors of fitting can also lead to failure and this part of EN 1677 contains dimensional requirements to allow correct fit. Risk of injury due to shar
40、p edges, sharp angles or rough surfaces when handling is also covered by this standard. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 7 EN 1677-5:2001 BSI 06-2001 Those aspects of safe use associated with good practice are given in EN
41、 818-6. Table 1 contains those hazards, that require action to reduce risk identified by risk assessment as being specific and significant for forged steel hooks of grade 4. Table 1 Hazards and associated requirements Hazards identified in annex A of EN 1050:1996 Relevant clause of annex A of EN 292
42、-2:1991+A1:1995 Relevant clause/subclause of this part of EN 1677 1.3.25 4.1.2.35 4.1.2.55 4.2.45 1.eMechanical hazard due to inadequacy of strength 1.7.37 1.3Cutting hazard1.3.45.4 1.8Friction or abrasion hazard 1.3.45.4 15Errors of fitting hazard 1.5.45.2 17Falling objects hazard 1.3.35.6 5 Safety
43、 requirements 5.1 Design The form of the upper end shall be of the eye type as indicated in Figure 1. The dimensions shall be such as to ensure articulation so that the force imposed is transmitted in the intended direction. NOTE The form of the hook is not specified in detail. For example, a minimu
44、m value of dimension F (see Figure 1) as measured in any direction is specified so that the eye of the hook can accommodate a pin, but the eye of the hook need not be circular. Each hook shall have a spring-loaded latch conforming to 5.6 to ensure that the load cannot become accidentally unhooked. 5
45、.2 Dimensions The principal dimensions of the hooks shall conform to Table 2, in which the hook dimensions are related to the working load limit. NOTE For direct use in wire rope slings and/or textile slings, dimension F should be larger than the minimum value given in Table 2. Licensed Copy: sheffi
46、eldun sheffieldun, na, Fri Nov 17 08:41:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 8 EN 1677-5:2001 BSI 06-2001 In addition, the following requirements shall be met: a) the actual point height B shall be equal to or greater than the full throat opening, O, (see Figure 1); b) the full throat
47、opening O shall not exceed 95 % of the actual seat diameter D; c) the hook latch shall be capable of closing over the maximum diameter of bar A, as indicated in Figure 1, that can be admitted through the actual throat opening O1. Key 1 Maximum diameter of bar Figure 1 Dimensions of hook Licensed Cop
48、y: sheffieldun sheffieldun, na, Fri Nov 17 08:41:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 9 EN 1677-5:2001 BSI 06-2001 Table 2 Dimensions of hooks (see Figure 1) DOO1FHLCode number Working load limit (WLL) min.min.min.min.max.max. tmmmmmmmmmmmm 60,56221716122517 70,75262018142920 813023211
49、63523 91,25342624183826 101,6382927204329 112423230234832 132,65493735265537 143524037285940 164604643326846 185675148367651 195,6715451388054 206,3755753408557 227,5826358449363 238856560469665 25109572685110772 2610,69875705211175 2812,510681765712081 321611991856413591 36201341029672152102 402515011510780170115 4531,516812912090190129 5.3 Materials and heat treatment 5.3.1 Quality of material 5.3.1.1 General Within the limitations given in 5.3.1.2 to 5.3.