1、BRITISH STANDARD BS EN 13411-5:2003 Terminations for steel wire ropes Safety Part 5: U-bolt wire rope grips ICS 21.060.70; 53.020.30 +A1:2008BS EN 13411-5:2003+A1:2008 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 4 June 2003 BSI ISBN 978 0
2、 580 60259 7 National foreword This British Standard is the UK implementation of EN 13411-5:2003+A1:2008. It supersedes BS EN 13411-5:2003, which is now withdrawn. The start and finish of the text introduced or altered by amendment is indicated im the text by tags. Tags indicating to CEN text carry
3、the number of the CEN amendment . For example, text altered be CEN amendment A1 is indicated by !“. The UK participation in its preparation was entrusted to Technical Committee MHE/2, Wire ropes. A list of organizations represented on this committee can be obtained on request to its secretary. This
4、publication does not purport to include all the necessary provisions of a contract. Users of are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. 30 June 2008 Amendments/corrigenda issued since publication Amd. No. Date Commen
5、ts Implementation of CEN amendment A1:20082009 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13411-5:2003+A1 October 2008 ICS 21.060.70; 53.020.30 Supersedes EN 13411-5:2003 English Version Terminations for steel wire ropes - Safety - Part 5: U-bolt wire rope grips Terminaisons pour cbles en
6、acier - Scurit - Partie 5: Serre-cbles trier en U Endverbindungen fr Drahtseile aus Stahldraht - Sicherheit - Teil 5: Drahtseilklemmen mit U-frmigem Klemmbgel This European Standard was approved by CEN on 25 March 2003 and includes Amendment 1 approved by CEN on 18 September 2008. CEN members are bo
7、und 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 application to the
8、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 its own language and notified to the CEN Management Centre has the same st
9、atus 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, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Roman
10、ia, 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 2008 CEN All rights of exploitation in any form and by any means reserved
11、 worldwide for CEN national Members. Ref. No. EN 13411-5:2003+A1:2008: EEN 13411-5:2003+A1:2008 (E) 2 Contents Page Foreword4 Introduction .5 1 Scope 5 2 Normative references 5 3 Terms and definitions .6 4 List of hazards6 Table 1 Hazards and associated requirements.6 5 Safety requirements and/or me
12、asures 7 5.1 Materials .7 5.2 Mechanical properties.7 6 Verification of safety requirements7 6.1 Qualification of personnel 7 6.2 Type testing7 7 Information for use 8 7.1 Identification marking .8 7.2 Fitting instructions 9 7.3 Certificate .9 Annex A (informative) Specification for construction and
13、 sizes for one design of grip - 1 10 A.1 General10 A.2 Material .10 A.3 Dimensions.11 Figure A.1 Wire rope grip 11 Figure A.2 Bridge .11 Figure A.3 U-bolt 11 Figure A.4 Collar nut11 Table A.1 Dimensions (see Figures A1, A2, A3 and A4) 12 A.4 Fitting instructions 12 Figure A.5 Spacing for grips .12 T
14、able A.2 Torque and number of wire rope grips.13 Annex B (informative) Specification for construction and sizes for one design of grip - 2 14 B.1 General14 B.2 Material .14 B.3 Dimensions.15 Table B.1 Dimensions (see Figures B.1, B.2, B.3 and B.4) 16 B.4 Fitting instructions 17 Figure B.5 Sequence o
15、f fitting grips 17 Table B.2 Torque and number of grips 18 Annex ZA (informative) ! ! ! !Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC“ “ “ “.19 BS EN 13411-5:2003+A1:2008EN 13411-5:2003+A1:2008 (E) 3 Annex ZB (informative) ! ! ! !Relationship be
16、tween this European Standard and the Essential Requirements of EU Directive 2006/42/EC“ “ “ “ 20 Bibliography21 BS EN 13411-5:2003+A1:2008EN 13411-5:2003+A1:2008 (E) 4 Foreword This document (EN 13411-5:2003+A1:2008) has been prepared by Technical Committee CEN/TC 168 “Chains, ropes, webbing, slings
17、 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 April 2009, and conflicting national standards shall be withdrawn at the latest
18、 by December 2009. This document supersedes EN 13411-5:2003. This document includes Amendment 1, approved by CEN on 2008-09-18. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. This document has been prepared under a mandate given to CEN by the Eur
19、opean Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). !For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document.“ Annexes A and B are informative. This European Standard also contai
20、ns a Bibliography. The other Parts of this European Standard are: Part 1: Thimbles for steel wire rope slings Part 2: Splicing of eyes for wire rope slings Part 3: Ferrules and ferrule-securing Part 4: Metal and resin socketing Part 6: Asymmetric wedge socket Part 7: Symmetric wedge socket According
21、 to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, L
22、ithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. BS EN 13411-5:2003+A1:2008EN 13411-5:2003+A1:2008 (E) 5 Introduction This European Standard has been prepared to provide a means of conforming with the esse
23、ntial safety requirements of the Machinery Directive and associated EFTA Regulations. Purchasers ordering to this standard are advised to specify in their purchasing contract that the supplier operates a quality assurance system applicable to the relevant part of this standard (e.g. EN ISO 9001) to
24、ensure themselves that products claimed to comply consistently achieve the required level of quality. 1 Scope This European Standard specifies the minimum requirements for U-bolt wire rope grips manufactured from ferrous materials and the safe behaviour of eye terminations secured by U-bolt wire rop
25、e grips for use as intended by the manufacturer. Suitable uses include suspending static loads and single use lifting operations which have been assessed by a competent person taking into account appropriate safety factors. U-bolt wire rope grips are not suitable for use with spiral ropes. This stan
26、dard does not cover U-bolt wire rope grips as the primary securing devices on mine hoists, crane hoists or eye terminations for slings for general lifting service. Examples of grips together with fitting instructions are given in informative annexes A and B. The hazards covered by this standard are
27、identified in clause 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 listed hereafter. For dated references, subsequen
28、t 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 292-2:1991, Safety of machinery Basic concepts,
29、 general principles for design Part 2: Technical principles and specifications. EN 1050:1996, Safety of machinery Principles for risk assessment. EN 1562, Founding Malleable cast irons. EN 12385-1:2002, Steel wire ropes Safety Part 1: General requirements. EN 12385-2:2003, Steel wire ropes Safety Pa
30、rt 2: Definitions, designation and classification. EN 20898-2, Mechanical properties of fasteners Part 2: Nuts with specified proof load values Coarse thread (ISO 898-2:1992). EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws and studs (ISO
31、 898-1:1999). BS EN 13411-5:2003+A1:2008EN 13411-5:2003+A1:2008 (E) 6 EN ISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts - Product grades A, B and C (ISO 4759-1:2000). EN ISO 7500-1, Metallic materials - Verification of static uniaxial testing machines - Part 1: Tension/co
32、mpression testing machines (ISO 7500-1:1999). 3 Terms and definitions For the purposes of this European Standard the terms and definitions given in EN 12385-2:2003 and the following apply: 3.1 U-bolt wire rope grip U-bolt wire rope grip: assembly consisting of a U-bolt, bridge and nuts that allow fo
33、r two parts of rope to be pressed together when the nuts are tightened 3.2 grip-secured eye termination grip-secured eye termination: eye termination secured by wire rope grips fitted in accordance with the manufacturers instructions 4 List of hazards Accidental release of a load, or release of a lo
34、ad due to failure of a wire rope grip puts at risk either directly or indirectly the safety or health of those persons within the danger zone. Temperature hazard is not covered as in use temperature is limited by the wire rope. Table 1 contains those hazards that require action to reduce risk identi
35、fied by risk assessment as being specific and significant for wire rope grips. 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 Relevant clause/subclause of this standard 1 Mechanical hazard due to inadequacy of str
36、ength 1.3.2 4.1.2.3 4.1.2.5 4.2.4 1.7.3 4.3.1 4.2.4 5 5 6 6 1.7 Puncture hazard 1.3 5 10.4 Errors of fitting hazard 1.5.4 7 BS EN 13411-5:2003+A1:2008EN 13411-5:2003+A1:2008 (E) 7 5 Safety requirements and/or measures 5.1 Materials 5.1.1 U-bolt Carbon steel with at least property class 5.8 but not m
37、ore than property class 8.8 in accordance with EN ISO 898-1. 5.1.2 Bridge Malleable cast iron grade W40-05 or B35-10 in accordance with EN 1562; or forged non-ageing carbon steel. 5.1.3 Nut Carbon steel with at least property class 5 in accordance with EN 20898-2 and product grade A in accordance wi
38、th EN ISO 4759-1. 5.2 Mechanical properties 5.2.1 Grip security/tensile efficiency of grip-secured eye termination When tested in accordance with 6.2.2 the grip-secured eye termination shall withstand a force of at least 80% of the minimum breaking force of the rope held for 5 minutes without the ro
39、pe slipping more than 1 mm at the grip-secured eye termination. 5.2.2 Pulsatory fatigue behaviour of grip-secured eye termination When tested in accordance with 6.2.3 the grip-secured eye termination shall withstand a minimum of 20 000 cycles. The same grip-secured eye termination subjected to the p
40、ulsatory test above shall then be tested in accordance with 6.2.2, after which the grips shall not exhibit any visible cracks, deformation or other damage. 6 Verification of safety requirements 6.1 Qualification of personnel All testing and examination shall be carried out by a competent person. 6.2
41、 Type testing 6.2.1 General In order to prove the design, material and method of manufacture, testing shall be carried out on each class of rope for which the grips are designed. The grade of the rope shall be the highest for which the grips are designed. Where grips are intended for use with single
42、 layer ropes with a fibre core and a steel core, testing shall be carried out on both. At least three assemblies having a grip-secured eye termination at one end shall be tested. NOTE The number of tests is regarded as two for assemblies having grip-secured eye terminations at both ends. BS EN 13411
43、-5:2003+A1:2008EN 13411-5:2003+A1:2008 (E) 8 For both tests described below, the applied force shall be transmitted to the grip-secured eye termination via a round pin(s). The angle subtended by the eye shall not exceed 30. The minimum length of free rope between the outer grips for assemblies havin
44、g grip-secured eye terminations at each end shall be at least 30d, where d is the nominal rope diameter. The test machines used in the tests specified in 6.2.2 and 6.2.3 shall conform to EN ISO 7500-1. Any change of design, specification of material, method of manufacture or any dimension outside no
45、rmal manufacturing tolerances that may lead to a modification of the mechanical properties shall require that the type testing specified in 6.2.2 and 6.2.3 are carried out on the modified components. 6.2.2 Grip security and tensile test The test procedure shall generally be in accordance with that d
46、escribed in 6.4.1 of EN 12385-1:2002 except that after a force equivalent to 20 % of the minimum breaking force of the rope has been applied it may be necessary to re-tighten the grips in accordance with the manufacturers instructions. The test may be discontinued when the applied force reaches a va
47、lue equivalent to 80 % of the minimum breaking force of the rope. 6.2.3 Pulsatory fatigue test Apply a force equivalent to 20 % of the minimum breaking force of the rope and if required by the manufacturers instructions re-tighten the grips. Subject each assembly to a cyclic tension along the rope a
48、xis of between 15 % and 30 % of the relevant minimum breaking force of the rope. Re-tightening of the grips shall be in accordance with the manufacturers instructions. Ensure that the frequency of force application does not exceed 5 Hz. 6.2.4 Acceptance criteria for type tests If all three assemblie
49、s pass all of the above tests, the component of the size submitted for type testing shall be deemed to conform to this part of EN 13411. If one assembly fails any one of the above tests, two further assemblies shall be tested and both shall pass all of the tests in order for the component of the size submitted for testing to be deemed to conform to this part of EN 13411. If two or three assemblies fail any one of the above tests, the component of
