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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1677-2:2000 The Eur
2、opean Standard EN 1677-2:2000 has the status of a British Standard ICS 53.020.30; 77.140.85 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Components for slings Safety Part 2: Forged steel lifting hooks with latch, Grade 8 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 1
3、7 08:41:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 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 October 2000 BSI 10-2000 ISBN 0 580 36282 5 BS EN 1677-2
4、:2000 Amendments issued since publication Amd. No.DateComments National foreword This British Standard is the official English language version of EN 1677-2:2000. The UK participation in its preparation was entrusted to Technical Committee MHE/1, Chains and fittings, which has the responsibility to:
5、 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 international and European developments and promulgate them in the UK. A list of organizations repres
6、ented 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 section entitled International Standards Correspondenc
7、e 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. Compliance with a British Standard does not of itself
8、 confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 14, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Licensed C
9、opy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1677-2 August 2000 ICS 53.020.30 English version Components for slings - Safety - Part 2: Forged steel lifting hooks with latch, Grade 8 Accessoires p
10、our lingues - Scurit - Partie 2: Crochets de levage en acier forg linguet, Classe 8 Einzelteile fr Anschlagmittel - Sicherheit - Teil 2: Geschmiedete Haken mit Sicherungsklappe, Gteklasse 8 This European Standard was approved by CEN on 21 May 2000. CEN members are bound to comply with the CEN/CENELE
11、C 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 application to the Central Secretariat or to any CEN
12、 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 Central Secretariat has the same status as the official versions. CEN me
13、mbers 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 STANDARDIZATION COMIT EUROPEN DE NORMALISA
14、TION EUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 B-1050 Brussels 2000 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1677-2:2000 E Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:02 GMT+00:0
15、0 2006, Uncontrolled Copy, (c) BSI Page 2 EN 1677-2:2000 Contents Page Foreword3 0 Introduction4 1Scope4 2Normative references5 3Terms and Definitions5 4Hazards6 5Safety requirements7 6Verification of safety requirements11 7Marking11 8Manufacturers certificate11 9Instructions for use11 Annex A (info
16、rmative) Bases for the calculation of hook dimensions12 Annex B (informative) Designation system for hooks - Grade 813 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 1677-2:2000 Foreword This European Standard has been prepared by
17、 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 status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2001, and
18、 conflicting national standards shall be withdrawn at the latest by February 2001. 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(s). For relationship with E
19、U Directive(s), 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 steel components - Grade 8 Part 3: Forged steel self-locking hooks - Grade 8 Part 4: Links - Grade 8 Part 5: Forged steel lifting hooks with
20、latch - Grade 4 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: Austria, Belgium, Czech Republic, Denma
21、rk, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 1677-2:2000 0 Introduction
22、 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 be part of a sling, but they ma
23、y 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 appropriate to EN 292 for hazards th
24、at are not covered by this standard. 1 Scope This Part of EN 1677 specifies requirements for forged steel lifting hooks with latch of grade 8 having eye or clevis and pin up to 63 t WLL, mainly for use in: chain slings according to EN 818-4 steel wire rope slings according to prEN 13414-1:1999 texti
25、le slings according to prEN 1492-1:2000, prEN 1492-2:2000 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 is informative, and gives the bases for calculation of
26、 hook dimensions. Annex B is informative, and gives an example of a designation system for hooks of grade 8. Annex ZA gives the relationship with EU-Directives Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN 1677-2:2000 2 Normative
27、 references This European Standard incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of
28、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. EN 292-1Safety of machinery - Basic concepts - General principles for design Part 1: Basic terminology, methodol
29、ogy EN 292-2: 1991/Safety of machinery - Basic concepts - General principles for design A1: 1995Part 2: Technical principles and specifications (Amendment 1: 1995) EN 818-4Short-link chain for lifting purposes - Safety Part 4: Chain slings Grade 8 EN 818-6:2000Short link chain for lifting purposes -
30、 Safety Part 6: Chain slings - Specification for information for use and maintenance to be provided by the manufacturer EN 1050: 1996Safety of machinery - Principles of risk assessment EN 1677-1:2000Components for slings - Safety Part 1: Forged steel components - Grade 8 EN 1492-1:2000Textile slings
31、 - Safety Part 1: Flat woven webbing slings made of man-made fibres EN 1492-2:2000Textile slings - Safety Part 2: Round slings made of man-made fibres prEN 13414-1:1999Steel wire rope slings Safety Part 1: Wire rope slings 3 Terms and Definitions For the purpose of this Part of EN 1677, the definiti
32、ons given in EN 1677-1:2000 apply. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 6 EN 1677-2:2000 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
33、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 for the design, manufacture and testing to ensure the specified levels of performance are met. Since failure can be caused by the inco
34、rrect choice of grade and specification of hook, this Part of EN 1677 also gives requirements for marking and the manufacturers certificate. Errors in fitting can also lead to failure and this Part of EN 1677 contains dimensional requirements to allow correct fit. Risk of injury due to sharp edges,
35、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 818-6:2000. Table 1 contains those hazards which require action to reduce risk identified by risk assessment as being specific and significant for fo
36、rged steel lifting hooks with latch, Grade 8. Table 1: Hazards and associated requirements Hazards identifiedRelevant clauseRelevant in annex A ofof annex A ofclause/subclause of EN 1050: 1996EN 292-2: 1991/ A1: 1995this Part of EN 1677 1Mechanical1.3.25 Hazard due to4.1.2.35 Inadequacy of4.1.2.55 S
37、trength4.2.45 1.7.37 1.7.49 1.3Cutting hazard1.3.45.4 1.8Friction or abrasion hazard 1.3.45.4 15Errors of fitting1.5.45.2 Hazard9 17Falling objects1.3.35.6 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 7 EN 1677-2:2000 5 Safety requir
38、ements 5.1 Design The articulation and relative movement shall be in accordance with 5.1 of EN1677-1:2000. 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 specified so that the eye of the hook can acco
39、mmodate a pin, but the eye of the hook need not be circular. The form of the upper end shall be either of the eye type or the clevis type as designated in table 2 and figure 1. Each hook shall have a spring loaded latch conforming to 5.6 to ensure that the load cannot become accidentally unhooked. T
40、able 2: Forms of hooks FormDescriptionPrincipal use EEye typeChain slings, wire rope slings and textile slings CClevis typeMechanically assembled chain slings 5.2 Dimensions The principal dimensions of the hooks shall conform to table 3, in which the hook dimensions are related to the working load l
41、imit. NOTE 1: With an eye type hook, connecting devices may be required between the hook and the rest of the sling. NOTE 2: For direct use in wire ropeslings and textile slings, dimension F should be larger than the minimum value given in table 3. In addition, the following requirements shall be met
42、: 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 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, tha
43、t can be admitted through the actual throat opening O1. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 8 EN 1677-2:2000 1. Clevis type 2. Eye type 3. Maximum diameter of bar Figure 1: Dimensions of hooks Licensed Copy: sheffieldun shef
44、fieldun, na, Fri Nov 17 08:41:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 9 EN 1677-2:2000 Table 3: Dimensions of hooks (see figure 1) CodeWorkingD min.O min.O1 min.F min.H max.L max. Numberload limit (WLL) tmmmmmmmmmmmm 30,2511886128 40,515111181711 50,8191414102114 61,12221716122517 71,5262
45、018142920 82302321163423 92,5342624183826 103,15382927204329 114423230234832 135,3493735265537 146524037285940 168604643326846 1810675148367651 1911,2715451388054 2012,5755753408557 2215826358449363 2316856560469665 25209572685110772 2621,29875705211175 282510681765712081 3231,511991856413591 364013
46、41029672152102 405015011510781170115 456316812912090190129 5.3 Materials and heat treatment Materials and heat treatment shall be in accordance with 5.2 of EN 1677-1:2000. 5.4 Manufacturing methods and workmanship Manufacturing methods and workmanship shall be in accordance with 5.3 of EN 1677-1:200
47、0. 5.5 Mechanical properties The mechanical properties shall conform to 5.4 of EN 1677-1:2000 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 10 EN 1677-2:2000 5.6 Hook latches The latch shall engage in the point of the hook to form a c
48、omplete closure of mating surfaces. With the hook in any orientation the spring shall ensure that the latch is held positively in the closed position. Latches operated solely by gravity shall not be used. NOTE: The force required to fully open the latch should not exceed that which can be applied ma
49、nually.Table 4 contains guidance on the minimum initial torque and maximum torque during latch opening necessary to fulfil these requirements. Table 4: Torque values for latches - guidance Code numberMinimum initial torque Maximum torque during opening fromup to and includingNmNm 350,050,1 670,10,2 8100,20,4 11140,30,6 16180,751,5 192312 252824 32453,57 The spring shall be constructed from corrosion protected material and shall be able to withstand at least 10 000 complete openings of the latch without fracture. The latch shall be able to withstand