1、BRITISH STANDARDBS EN 1677-5:2001Components for slings Safety Part 5: Forged steel lifting hooks with latch Grade 4ICS 53.020.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW+A1:2008This British Standard waspublished under the authority of the Standards Committee and comes in
2、to effect on 15 June 2001 BS EN 1677-5:2001+A1:2008National forewordThis British Standard is the UK implementation of EN 1677-5:2001+A1:2008. It supersedes BS EN 1677-5:2001 which is withdrawn. The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags ind
3、icating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by . The UK participation in its preparation was entrusted to Technical Committee MHE/1, Chains and fittings.A list of organizations represented on this committee can be obta
4、ined on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.ISBN Amendments/corrigenda issued since publica
5、tionDate Comments Implementation of CEN amendment A1:2008 BSI 2009 0 April 2009 978 0 580 64317 0 3EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1677-5:2001+A1 November 2008 ICS 53.020.30 Supersedes EN 1677-5:2001 English Version Components for slings - Safety - Part 5: Forged steel lifting h
6、ooks 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 4This European Standard was approved by CEN on 18 February 2001 and inc
7、ludes Amendment 1 approved by CEN on 9 September 2008.CEN members 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 c
8、oncerning such national standards may be obtained on application to the CEN 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 it
9、s own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Li
10、thuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2
11、008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1677-5:2001+A1:2008: EEN 1677-5:2001+A1:2008 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 4 2 Normative references 4 3 Terms and definitions .5 4 Hazards .6 Table 1 Hazar
12、ds and associated requirements.6 5 Safety requirements 6 5.1 Design .6 5.2 Dimensions.7 Figure 1 Dimensions of hook7 Table 2 Dimensions of hooks (see Figure 1).8 5.3 Materials and heat treatment8 Table 3 Sulfur and phosphorous content9 Table 4 Silicon content 9 5.4 Manufacturing methods and workmans
13、hip 9 5.5 Mechanical properties.10 5.6 Hook latches.10 Table 5 Torque values for latches guidance 11 Figure 2 Application of forces for type testing of the latch.11 6 Verification of safety requirements12 6.1 Qualification of personnel 12 6.2 Type tests .12 6.3 Manufacturing proof tests 13 6.4 Manuf
14、acturing test regime and acceptance criteria.13 Table 6 Number of hooks in a lot13 6.5 Hook latches.14 7 Marking .14 8 Manufacturers certificate .14 9 Instructions for use .15 Annex A (informative) Bases for the calculation of hook dimensions 16 Annex B (informative) Designation system for hooks - G
15、rade 417 B.1 Designation 17 B.2 General format .17 Annex ZA (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC“.18 Annex ZB (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/4
16、2/EC“.19 Bibliography 20 EN 1677-5:2001+A1:2008 (E) 3 Foreword This document (EN 1677-5:2001+A1:2008) 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 shall be given the stat
17、us of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This document supersedes EN 1677-5:2001. This document includes Amendment 1, approved by CEN on 20
18、08-09-09. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive
19、(s). !For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document.“ The other Parts of EN 1677 for components for slings are: Part 1: Forged steel components - Grade 8 Part 2: Forged steel lifting hooks with latch - Grade 8 Part 3: Forged steel
20、 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 standards organizations of the following countries are bound to implement this European Standard: A
21、ustria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 1677-5:
22、2001+A1:2008 (E) 4 Introduction This European Standard has been prepared to be a harmonized standard providing one means of complying with the essential safety requirements of the Machinery Directive and associated EFTA regulations. The hooks covered by this Part of EN 1677 are normally supplied to
23、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 extent to which hazards are covered is indicated in the scope. In addition, lifting equipment shall conform as appro
24、priate 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 up to 31,5 t WLL, mainly for use in: chain slings according to EN 818-5 steel wire rope slings according to prEN 1341
25、4-1:1998 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 covered by this Part of EN 1677 are identified in clause 4. Annex A gives the bases for calculation of hook dimensions. A
26、nnex B gives an example of a designation system for hooks of grade 4. 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 lis
27、ted hereafter. For dated references, subsequent 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 2
28、92-1, Safety of machinery - Basic Concepts - General principles for design - Part 1 : Basic Terminology, methodology EN 292-2:1991/A.1:1995, Safety of machinery - Basic concepts - General principles for design - Part 2 : Technical principles and specifications (Amendment A.1:1995) EN 818-5, Short-li
29、nk chain for lifting purposes Safety - Part 5: Chain slings - Grade 4 EN 818-6, Short link chain for lifting purposes Safety - Part 6: Chain slings - Specification for information for use and maintenance to be provided by the manufacturer EN 1677-5:2001+A1:2008 (E) 5 EN 1050:1996, Safety of machiner
30、y - Principles for risk assessment EN 1492-1, Textile slings Safety - Part 1: Flat woven webbing slings made of man-made fibres EN 1492-2, Textile slings Safety - Part 2: Round slings made of man-made fibres EN 10002-2:1991, Metallic materials - Tensile testing - Part 2: Verification of the force me
31、asuring system of the tensile testing machines EN 10025:1990+A1:1993, Hot rolled products of non-alloy structural steels - Technical delivery - conditions prEN 13414-1:1998, Steel wire ropes for slings Safety - Part 1: Wire rope slings EN 45012, General requirements for bodies operating assessment a
32、nd certification/registration of quality systems (ISO/IEC Guide 62:1996) EN ISO 9002:1994, Quality systems - Model for quality assurance in production, installation and servicing ISO 643:1983, Steels - Micrographic determination of the ferritic or austenitic grain size 3 Terms and definitions For th
33、e 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 annex A of EN 292
34、-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 letters and/or numbe
35、rs 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 required test and exa
36、mination 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 EN 1677-5:2001+A1:
37、2008 (E) 6 4 Hazards 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 r
38、equirements for 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 ca
39、n be caused by 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 inju
40、ry due to sharp edges, sharp angles or rough surfaces when handling is also covered by this standard. Those aspects of safe use associated with good practice are given in EN 818-6. Table 1 contains those hazards that require action to reduce risk identified by risk assessment as being specific and s
41、ignificant 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 292-2 : 1991/A.1 : 1995 Relevant clause/subclause of this Part of EN 1677 1.e Mechanical 1.3.2 5 hazard due to 4.1.2.3 5 inadequac
42、y of 4.1.2.5 5 strength 4.2.4 5 1.7.3 7 1.3 Cutting hazard 1.3.4 5.4 1.8 Friction or abrasion hazard 1.3.4 5.4 15 Errors of fitting hazard 1.5.4 5.2 17 Falling objects hazard 1.3.3 5.6 5 Safety requirements 5.1 Design The form of the upper end shall be of the eye type as indicated in Figure 1. The d
43、imensions shall be such as to ensure articulation so that the force imposed is transmitted in the intended direction. EN 1677-5:2001+A1:2008 (E) 7 NOTE The form of the hook is not specified in detail. For example, a minimum value of dimension F (see Figure 1) as measured in any direction is specifie
44、d 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. 5.2 Dimensions The principal dimensions of the hooks shall conform to Table 2,
45、 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 In addition, the following requirements shall be met: a) the actual point height B shall be equal t
46、o or greater than the full throat opening, O, (see Figure 1); b) the full throat 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 op
47、ening O1. Key 1 Maximum diameter of bar Figure 1 Dimensions of hook EN 1677-5:2001+A1:2008 (E) 8 Table 2 Dimensions of hooks (see Figure 1) Code number Working load limit D O O1F H L (WLL) min. min. min. min. max. max.t mm mm mm mm mm mm6 0,56 22 17 16 12 25 17 7 0,75 26 20 18 14 29 20 8 1 30 23 21
48、16 35 23 9 1,25 34 26 24 18 38 26 10 1,6 38 29 27 20 43 29 11 2 42 32 30 23 48 32 13 2,65 49 37 35 26 55 37 14 3 52 40 37 28 59 40 16 4 60 46 43 32 68 46 18 5 67 51 48 36 76 51 19 5,6 71 54 51 38 80 54 20 6,3 75 57 53 40 85 57 22 7,5 82 63 58 44 93 63 23 8 85 65 60 46 96 65 25 10 95 72 68 51 107 72
49、26 10,6 98 75 70 52 111 75 28 12,5 106 81 76 57 120 81 32 16 119 91 85 64 135 91 36 20 134 102 96 72 152 10240 25 150 115 107 80 170 11545 31,5 168 129 120 90 190 1295.3 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 5.3.1.4, the manufacturer shall select the type of steel to be used so that the hooks, when suitably heat-treated conform to the mechanical properties specified in this part of EN 1677. 5.3.1.2 Type of steel The steel shall be produced by an electric
