1、BRITISH STANDARD BS EN Terminations for steel wire ropes Safety Part 6: Asymmetric wedge socket ICS 53.020.30; 77.140.99 13411-6:2004 + A1:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 7 July 2004 National foreword This British Standard
2、 is the UK implementation of EN 13411-6:2004+A1:2008. It supersedes BS EN 13411-6:2004 which is withdrawn. The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text al
3、tered by 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 publication does not purport to include all the necess
4、ary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication ISBN 978 0 580 60260 3 BSI 2009 BS EN 13411-6:2004+A1:2008 Date Comments 30 June 2009 Implementation
5、of CEN amendment A1:2008 /corrigenda EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13411-6:2004+A1 October 2008 ICS 21.060.70; 53.020.30 Supersedes EN 13411-6:2004 English Version Terminations for steel wire ropes - Safety - Part 6: Asymmetric wedge socket Terminaisons pour cbles en acier - S
6、curit - Partie 6: Bote coin asymtrique Endverbindungen fr Drahtseile aus Stahldraht - Sicherheit - Teil 6: Asymmetrische Seilschlsser This European Standard was approved by CEN on 24 March 2004 and includes Amendment 1 approved by CEN on 18 September 2008. CEN members are bound to comply with the CE
7、N/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 CEN Management Centre or
8、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 status as the official vers
9、ions. 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, Romania, Slovakia, Slovenia, S
10、pain, 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 worldwide for CEN nation
11、al Members. Ref. No. EN 13411-6:2004+A1:2008: EEN 13411-6:2004+A1:2008 (E) 2 C o n t e n t s page Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 List of significant hazards 6 5 Safety requirements and/or measures 7 6 Verification of safety requirements9 7 I
12、nformation for use 12 Annex A (informative) Asymmetric wedge socket with cast socket body Design 1 .14 Annex B (informative) Asymmetric wedge socket with cast socket body Design 2 .17 Annex C (informative) Recommendations for safe use and inspection 20 Annex ZA (informative) ! ! ! !Relationship betw
13、een this European Standard and the Essential Requirements of EU Directive 98/37/EC“ “ “ “.23 Annex ZB (informative) ! ! ! !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC“ “ “ “.24 Bibliography 25 BS EN 13411-6:2004+A1:2008EN 13411-6:2004+A1:2008
14、 (E) 3 Foreword This document (EN 13411-6:2004+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 status of a national standard, either by publicati
15、on of an identical text or by endorsement, at the latest by April 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This document supersedes EN 13411-6:2004. This document includes Amendment 1, approved by CEN on 2008-09-18. The start and finish of text intr
16、oduced or altered by amendment is indicated in the text by tags !“. This document 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 EU Directive(s), see inf
17、ormative Annexes ZA and ZB, which are integral parts of this document.“ Annexes A, B and C are informative. This document includes a Bibliography. EN 13411 with the general title Terminations for steel wire ropes Safety, consists of the following parts: Part 1: Thimbles for steel wire rope slings Pa
18、rt 2: Splicing of eyes for wire rope slings Part 3: Ferrules and ferrule-securing Part 4: Metal and resin socketing Part 5: U-bolt wire rope grips Part 6: Asymmeteric wedge socket Part 7: Symmetric wedge socket According to the CEN/CENELEC Internal Regulations, the national standards organizations o
19、f 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, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slo
20、vakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. BS EN 13411-6:2004+A1:2008EN 13411-6:2004+A1:2008 (E) 4 Introduction This European Standard is a Type C Standard as stated in EN 1070. This European Standard has been prepared to provide a means of conforming with the essential requirem
21、ents 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 an independently verified quality assurance system to ensure themselves that products claimed to comply consistently ac
22、hieve the required level of quality. The wedge sockets concerned and the extent to which hazards, hazardous situations and events are covered are indicated in the scope of this document. When provisions of this Type C standard are different from those which are stated in Type A or B standards, the p
23、rovisions of this Type C standard take precedence over the provisions of the other standards, for asymmetric wedge sockets that have been designed and produced according to the provisions of this Type C standard. BS EN 13411-6:2004+A1:2008EN 13411-6:2004+A1:2008 (E) 5 1 Scope This European Standard
24、specifies the minimum requirements, for asymmetrical wedge socket terminations for stranded steel wire ropes. Examples of the construction and sizes of two separate designs of asymmetric wedge sockets are given in informative annexes A and B. The informative annex C gives recommendations for safe us
25、e and inspection. This European Standard deals with all significant hazards, hazardous situations and events relevant to asymmetric wedge sockets for terminations for steel wire ropes, when used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer. This sta
26、ndard applies to terminations of steel wire ropes with asymmetrical wedge sockets which are manufactured after the date of its publication. This standard does not cover rope fatigue. 2 Normative references The following referenced documents are indispensable for the application of this document. For
27、 dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1050:1996, Safety of machinery Principles for risk assessment. EN 1369: 1996, Founding - Magnetic particle inspection. EN 1371-1:1997, Found
28、ing Liquid penetrant inspection Part 1: Sand, gravity die and low pressure die castings. EN 10045-1, Metallic materials - Charpy impact test Part 1: Test method. EN 12385-2:2002, Steel wire ropes - Safety - Part 2: Definitions, designation and classification. EN 45012, General requirements for bodie
29、s operating assessment and certification/registration of quality systems ISO/IEC Guide 62:1996). EN ISO 7500-1, Metallic materials - Verification of static uniaxial testing machines - Part 1: Tension/compression testing machines (ISO 7500-1:1999). EN ISO 12100-2:2003, Safety of machinery Basic conce
30、pts, general principles for design Part 2: Technical principles and specifications (ISO 12100-2:2003). 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 12385-2:2002 and the following apply. 3.1 asymmetric wedge socket assembly consisting of a
31、socket body, wedge, and pin; when assembled the centre line of the pin is directly in line with the longitudinal axis of the live portion of the rope 3.2 socket body principal component of a wedge socket termination having an internal tapered form (see Figure 1) suitable for receiving a wedge (see 3
32、.3) and the rope with which the wedge is associated 3.3 wedge flat tapered component with peripheral groove, suitable for fitting into a tapered socket body to accommodate a rope of matching nominal diameter, see Figure 1 BS EN 13411-6:2004+A1:2008EN 13411-6:2004+A1:2008 (E) 6 3.4 pin removable comp
33、onent intended to facilitate connection of the socket body to its anchorage point 3.5 lot number of asymmetric wedge sockets from which samples are selected for testing purposes which are of the same type and dimension, each of their constituent components manufactured during the same production run
34、 from material of the same cast and subjected to the same heat treatment process 4 List of significant hazards This standard contains all the significant hazards, hazardous situations and events, as far as they have been dealt with in this standard, identified by risk assessment as significant for t
35、his type of steel wire rope termination which require action to eliminate or reduce the risk. In particular hazards caused by accidental release of a load, or release of a load due to failure of an asymmetric wedge socket puts at risk, either directly or indirectly, the safety or health of those per
36、sons within the hazard zone. Errors in the fitting of accessories can also lead to premature failure and this standard contains dimensional requirements to allow correct fit. Table 1 contains those hazards that require action to reduce risk identified by risk assessment as being specific and signifi
37、cant for asymmetric wedge sockets. Table 1 Hazards and associated requirements Hazards identified in annex A of EN 1050:1996 Relevant clause of annex A of EN ISO 12100-2:2003 Relevant clause/ subclause of this Part of EN 1.1.5 Mechanical hazard due to 1.3.1 5 inadequacy of strength 4.1.2.3 5 4.1.2.4
38、 5 4.2.4 7 4.3.2 7 1.3 Cutting or severing hazard 1.3.4 7 15 Errors of fitting 4.3.2 7 BS EN 13411-6:2004+A1:2008EN 13411-6:2004+A1:2008 (E) 7 5 Safety requirements and/or measures 5.1 Geometry of wedge and socket body Asymmetric wedge socket terminations for ropes shall conform to the following geo
39、metrical criteria (see Figure 1): The longitudinal axis of the live portion of the rope shall be perpendicular to the longitudinal axis of the pin. The difference between the wedge angle () and the socket angle () shall be not greater than 2. The internal side surfaces of the socket body and the wed
40、ge in contact with the rope shall be straight. The clamping length between socket body and the wedge in contact with the live portion of the rope shall be a minimum length (P) equal to 4,3 times the nominal rope diameter. The rope groove in the socket body and the wedge shall not exhibit protrusions
41、, marks or casting joints that would affect the intimate contact with the rope. Key 1 Socket body 2 Wedge Figure 1 Functional dimensions (pin and securing means not shown) BS EN 13411-6:2004+A1:2008EN 13411-6:2004+A1:2008 (E) 8 5.2 Security of the pin The pin shall be provided with a means for secur
42、ing it in position when in operation. 5.3 Mechanical properties 5.3.1 Termination and wedge security When tested in accordance with 6.2.2 the assembled and loaded termination, after initial settlement, shall during the noted two minute period exhibit no further movement between the rope and the term
43、ination, monitored either as movement of the tail of the rope, or as relative movement between the rope and the wedge. After release of the specified load when tested in accordance with 6.2.2 no relative movement shall occur between the wedge and socket body. 5.3.2 Manufacturing proof force and defo
44、rmation test When tested in accordance with 6.2.3 and 6.3.1, the socket body arms and pin shall show no sign of permanent deformation. 5.3.3 Fatigue behaviour of the socket body and pin When tested in accordance with 6.2.4 the socket body and pin shall not exhibit any indications of cracks after 750
45、00 load cycles. The socket shall also exhibit no sign of local permanent deformation in the pin eye holes. 5.3.4 Termination efficiency When tested in accordance with 6.2.5 the efficiency of the assembled termination shall be at least 80% of the minimum breaking force of the rope. 5.3.5 Low temperat
46、ure properties The materials of the socket, body and pin when tested in accordance with 6.2.6 shall possess minimum low temperature ductility and toughness qualities at 20C as follows: Steel socket body and/or pin: Minimum average Charpy impact value of 27 J, with no individual value less than 18 J.
47、 Spheroidal graphite cast iron and any other cast irons: socket body: Minimum average Charpy impact value of 12 J, with no individual value less than 9 J. BS EN 13411-6:2004+A1:2008EN 13411-6:2004+A1:2008 (E) 9 6 Verification of safety requirements 6.1 Qualifications of personnel All testing and exa
48、mination shall be carried out by a competent person. 6.2 Type testing 6.2.1 General Two type tests shall be carried out for each requirement, in accordance with 6.2.2 to 6.2.5, on assembled terminations of each design, material and method of manufacture, using the highest minimum breaking force of r
49、ope for which the socket is designed. If the four requirements tests are carried out using the same socket body, wedge and pin, they shall be conducted in the order of termination and wedge security, deformation, fatigue and tensile efficiency testing, renewing the rope as necessary. The testing machine shall conform to the requirements of EN ISO 7500-1. If the dimensional criteria or the chemical composition, or heat treatment of the socket body and pin are subseq
