1、BS EN 958:2017Mountaineering equipment Energy absorbing systemsfor use in klettersteig (viaferrata) climbing Safetyrequirements and test methodsBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 958:2017 BRITISH STANDARDNational forewordThis British Standard is th
2、e UK implementation of EN 958:2017. It supersedes BS EN 958:2006+A1:2010 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee SW/136/5, Sports, Playground and other Recreational Equipment - Mountaineering Equipment.A list of organizations represented on thi
3、s committee can be obtained 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. The British Standards Institution 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 89955 3 ICS
4、 97.220.40Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2017.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 958:2017E
5、UROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 958 March 2017 ICS 97.220.40 Supersedes EN 958:2006+A1:2010English Version Mountaineering equipment - Energy absorbing systems for use in klettersteig (via ferrata) climbing - Safety requirements and test methods quipement dalpinisme et descalade -
6、 Absorbeurs dnergie utiliss en Via Ferrata - Exigences de scurit et mthodes dessai Bergsteigerausrstung - Fangstodmpfer fr die Verwendung auf Klettersteigen (Via Ferrata) - Sicherheitstechnische Anforderungen und Prfverfahren This European Standard was approved by CEN on 16 January 2017. CEN members
7、 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 application
8、to the CEN-CENELEC 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-CENELEC Management
9、 Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lit
10、huania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Mar
11、nix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 958:2017 EBS EN 958:2017EN 958:2017 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 4 4 Safety requ
12、irements . 6 4.1 Design 6 4.1.1 Construction 6 4.1.2 Connecting device . 6 4.1.3 Connection to the safety line . 6 4.1.4 Initial arrangement 6 4.1.5 Rest attachment point . 6 4.2 Operation of the EAS 6 4.2.1 General 6 4.2.2 Force to initiate operation . 7 4.2.3 Dynamic performance . 7 4.2.4 Dynamic
13、strength of the EAS under wet conditions . 7 4.3 Static strength of the energy absorbing system . 7 4.3.1 General 7 4.3.2 Static strength of the whole system 8 4.3.3 Breaking strength of the components of elasticated arms 8 4.3.4 Breaking strength of the textile components of non-elasticated arms an
14、d harness attachment point . 8 4.3.5 Energy absorber initiation force . 8 4.3.6 Breaking strength of the rest attachment point 8 5 Test methods 9 5.1 Design 9 5.1.1 General 9 5.1.2 Measurement of the distance between the two arm extremities 9 5.1.3 Measurement of the overall length of the EAS 9 5.2
15、Operation tests . 9 5.2.1 General 9 5.2.2 Conditioning and test conditions for energy absorbing systems with textile components . 9 5.2.3 Apparatus . 9 5.2.4 Procedure 10 5.3 Strength test . 12 5.3.1 Determination of static strength of the whole system 12 5.3.2 Fatigue test for elasticated arms 12 5
16、.3.3 Breaking strength of the textile components of non-elasticated arms 13 5.3.4 Breaking test of the rest attachment point . 13 6 Marking 14 7 Information supplied by the manufacturer 14 Annex A (informative) Standards on mountaineering equipment . 16 Annex ZA (informative) Relationship between th
17、is European Standard and the essential requirements of Directive 89/686/EEC aimed to be covered . 18 BS EN 958:2017EN 958:2017 (E) 3 European foreword This document (EN 958:2017) has been prepared by Technical Committee CEN/TC 136 “Sports, playground and other recreational facilities and equipment”,
18、 the secretariat of which is held by DIN. 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 September 2017, and conflicting national standards shall be withdrawn at the latest by September 2017. Att
19、ention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 958:2006+A1:2010. In comparison to the previous edition EN 958:2006+A1:2010,
20、 the following technical changes have been made: a) in the scope, energy absorbing systems (EAS) according to this document have been limited to users weighing not less than 40 kg (total weight without equipment) and no more than 120 kg (total weight including the equipment); b) additional design re
21、quirements for the arm and overall lengths; c) in 4.2, the maximum braking length was changed to 2200 mm; d) in Clauses 6 and 7, the requirements of 40 kg and 120 kg was added; e) in 4.3.3 a fatigue test was added. This document has been prepared under a mandate given to CEN by the European Commissi
22、on and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive 89/686/EEC, see informative Annex ZA, which is an integral part of this document. According to the CEN-CENELEC Internal Regulations, the national standards organisat
23、ions of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malt
24、a, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 958:2017EN 958:2017 (E) 4 1 Scope This European Standard specifies safety requirements and test methods for energy absorbing systems (EAS) for use in climbi
25、ng on a Via Ferrata, for users weighing not less than 40 kg (total weight without equipment) and no more than 120 kg (total weight including the equipment). NOTE This European Standard is one of a package of standards for mountaineering equipment, see Annex A. 2 Normative references The following do
26、cuments, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 565, Mountaineering
27、equipment - Tape - Safety requirements and test methods EN 1891, Personal protective equipment for the prevention of falls from a height - Low stretch kernmantel ropes EN 12275, Mountaineering equipment - Connectors - Safety requirements and test methods EN ISO 2307, Fibre ropes - Determination of c
28、ertain physical and mechanical properties (ISO 2307) ISO 6487, Road vehicles Measurement techniques in impact tests Instrumentation ISO 7000, Graphical symbols for use on equipment Registered symbols 3 Terms and definitions For the purposes of this document, the following terms and definitions apply
29、. 3.1 Via Ferrata route consisting of a fixed climbing installation including a safety line where the user is not always supervised Note 1 to entry: The mere presence of a wire cable/rope on a mountain route does not constitute a Via Ferrata (e.g. Hrnli Ridge on Matterhorn). 3.2 safety line flexible
30、 or rigid, horizontal, vertical or sloping, continuous or discontinuous installation, used as protection against fall from a height and possible progression aid 3.3 energy absorbing system (EAS) device connecting the climber to the safety line, using an energy absorber to limit the impact forces on
31、the climber and the fixed installation Note 1 to entry: See Figure 1. 3.4 energy absorber part of the EAS which limits the impact force during a climbers fall Note 1 to entry: See Figure 1. BS EN 958:2017EN 958:2017 (E) 5 3.5 braking length increase in the distance between the connection to the safe
32、ty line and the connection to the harness after the climbers fall 3.6 initial arrangement original configuration of an un-activated energy absorber 3.7 arm part of the EAS between the energy absorber and the connecting device to the safety line of the Via Ferrata; an arm may be elasticated or non-el
33、asticated Note 1 to entry: See Figure 1. 3.8 elasticated arms arms with a static elongation of the arm material, as measured in 5.2.4.5, greater than 5 % 3.9 rest attachment point specific attachment point intended to attach the user to the safety line or to the anchor points of the Via Ferrata to t
34、ake a rest Note 1 to entry: See Figure 1. Key 1 connecting device (to Via Ferrata) 4 energy absorber 2 arm 5 harness attachment point (to climber) 3 rest attachment point Figure 1 Example of an energy absorbing system BS EN 958:2017EN 958:2017 (E) 6 4 Safety requirements 4.1 Design 4.1.1 Constructio
35、n 4.1.1.1 General All load bearing connections shall be designed so that they cannot be altered or disassembled by the user, with the exception of removable connecting devices. EAS shall not have any sharp or rough edges that may cut, abrade or cause injury to the user. 4.1.1.2 Distance between the
36、two arm extremities When measured in accordance with 5.1.2, the distance between the two extremities of the arms (without connecting devices) shall be 1 000 mm, unless there is only a single arm. 4.1.1.3 Overall length of EAS When measured in accordance with 5.1.3, the length of the energy absorbing
37、 system without connecting devices shall be 1 500 mm 4.1.2 Connecting device If the connecting device is a connector according to EN 12275, it shall be a type K connector. If an EAS is not fitted with a connector of type K according to EN 12275, refer to the information supplied by the manufacturer
38、of the EAS (see Clause 7). 4.1.3 Connection to the safety line There shall be at least two arms intended for attachment to the safety line, unless designed for a continuous system which does not permit disconnection of the EAS from the safety line (except at entry and exit points), where just one ar
39、m could be used. 4.1.4 Initial arrangement The initial arrangement of the energy absorber shall be designed in such a way that it can easily be checked by visual examination by the user. 4.1.5 Rest attachment point The rest attachment point shall activate the energy absorber in case of fall. 4.2 Ope
40、ration of the EAS 4.2.1 General Table 1 summarizes the dynamic performance requirements of the EAS, which are described in detail in 4.2.3 to 4.2.4. BS EN 958:2017EN 958:2017 (E) 7 Table 1 Summary of dynamic test requirements of the EAS Symbol Test 1 Test 2 Test 3 Test 4 M 40 kg 120 kg 120 kg 120 kg
41、 EAS wet or dry Dry Dry Dry Wet Arm (s) The two arms connected The two arms connected If symmetrical test one arm. If asymmetrical test each arm. Most constraining (configuration with the maximum braking length) Fmax3,5 kN 6 kN 6 kN 8 kN Lmax 2 200 mm 2 200 mm 2 200 mm 2 200 mm M: rigid steel mass e
42、qual to the maximum user weights (with equipment) and minimum user weights (without equipment). Fmax: max. allowable impact force during dynamic test. Lmax: max. braking length. 4.2.2 Force to initiate operation When tested in accordance with 5.2.4.2, the static force to initiate operation of the EA
43、S shall be greater than 1,3 kN (see Table 2). 4.2.3 Dynamic performance The requirements of the dynamic tests 1, 2 and 3 shall be fulfilled (see Table 1). a) When tested in accordance with 5.2.4.3 with a rigid steel mass of 40 kg the maximum impact force shall not exceed 3,5 kN and the maximum braki
44、ng length shall not exceed 2 200 mm. b) When tested in accordance with 5.2.4.3 with a rigid steel mass of 120 kg the maximum impact force shall not exceed 6 kN and the maximum braking length shall not exceed 2 200 mm. 4.2.4 Dynamic strength of the EAS under wet conditions After conditioning the sele
45、cted sample according to 5.2.4.4, when tested in accordance with 5.2.4.3, using a rigid steel mass of 120 kg, the maximum impact force shall not exceed 8 kN, and the maximum braking length shall not exceed 2 200 mm. 4.3 Static strength of the energy absorbing system 4.3.1 General Table 2 summarizes
46、the static strength requirements of the EAS, which are described in detail in 4.3.2 to 4.3.5. BS EN 958:2017EN 958:2017 (E) 8 Table 2 Summary of static test requirements of the EAS Symbol Minimum static strength kN Finit1,3 Fstat12 Fstat-elast arm12 Fstat non-elast arm15 Frest ap12 Finit: minimum st
47、atic strength to initiate operation Fstat: minimum static strength of whole system after dynamic tests Fstat-elast arm: minimum static strength after fatigue test of elasticated arm Fstat non-elast arm: minimum static strength of non-elastic arm Frest ap: minimum static strength of rest attachment p
48、oint 4.3.2 Static strength of the whole system When tested in accordance with 5.3.1 after being subjected to the dynamic test in accordance with 5.2.4.3, the EAS shall withstand a static force greater than 12 kN (see Table 2). 4.3.3 Breaking strength of the components of elasticated arms The decreas
49、e of breaking strength after the fatigue test in accordance with 5.3.2.2 compared to the breaking strength when new shall not exceed 30 % and the breaking strength shall be more than 12 kN (see Table 2). All elasticated arms shall be checked unless the manufacturer states that the elasticated arms are manufactured from the same material, and have identical strengths, performance, design and construction. 4.3.4 Breaking strength of the textile components of non-elasticated arms and harness attachment point Every textile component of non-elasticat
