1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58adjustment devicesThe European Standard EN 12841:2006 has the status of a British StandardICS 13.34
2、0.99; 13.340.60Personal fall protection equipment Rope access systems Rope BRITISH STANDARDBS EN 12841:2006BS EN 12841:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2006 BSI 2006ISBN 0 580 48970 1Amendments issued since publ
3、icationAmd. No. Date Commentscontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard was published by BSI. It is the UK implementation of EN 12841:2006.The UK participation in
4、its preparation was entrusted to Technical Committee PH/5, Industrial safety belts and harnesses.A list of organizations represented on PH/5 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a EUROPEAN STANDARDNORME EUROPENNEEURO
5、PISCHE NORMEN 12841August 2006ICS 13.340.99; 13.340.60English VersionPersonal fall protection equipment - Rope access systems -Rope adjustment devicesEquipements de protection individuelle pour la prventiondes chutes de hauteur - Systmes daccs par corde -Dispositif de rglage de corde pour maintien a
6、u poste detravailPersnliche Absturzschutzausrstung - Systeme frseiluntersttztes Arbeiten - SeileinstellvorrichtungenThis European Standard was approved by CEN on 19 July 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Euro
7、peanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, F
8、rench, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Repub
9、lic, 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.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORM
10、ALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12841:2006: EEN 12841:2006 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 5 2 N
11、ormative references 5 3 Terms and definitions .5 4 Requirements.8 4.1 General8 4.2 Type A rope adjustment devices9 4.3 Type B rope adjustment devices10 4.4 Type C rope adjustment devices10 5 Test methods12 5.1 Test apparatus .12 5.2 Test specimens12 5.3 Conditioning.12 5.4 General tests 13 5.5 Stati
12、c tests16 5.6 Dynamic tests.18 5.7 Descent test23 6 Marking .24 7 Information supplied by the manufacturer .25 Annex A (informative) List of functional requirements .27 A.1 General27 A.2 Maintenance of rope adjustment devices within the users reach .27 A.3 Anticipation of emergency situations27 A.4
13、Care when selecting anchor lines27 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 89/686/EEC29 Bibliography 30 Figures Figure 1 Locking test 15 Figure 2 Minimum working strength test 17 Figure 3 Example of stopper knot . 17 Figure 4
14、Example of stopper device 18 Figure 5 Test lanyard for the dynamic strength test of types B and C rope adjustment devices 19 Figure 6 Dynamic tests for type A rope adjustment devices . 21 Figure 7 Dynamic strength test for types B and C rope adjustment devices. 22 Figure 8 Descent test 23 EN 12841:2
15、006 (E) 3 Foreword This document (EN 12841:2006) has been prepared by Technical Committee CEN/TC 160 “Protection against falls from a height including working belts”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publicati
16、on of an identical text or by endorsement, at the latest by February 2007, and conflicting national standards shall be withdrawn at the latest by February 2007. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and suppor
17、ts essential requirements of EU Directive 89/686/EEC. For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement
18、 this European Standard: Austria, Belgium, 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 Kin
19、gdom. EN 12841:2006 (E) 4 Introduction In rope access systems, rope adjustment devices are used in combination with anchor lines, which could be a working line or a safety line, normally made of ropes conforming to type A of EN 1891. Rope adjustment devices are intended to be used to link sit harnes
20、ses (in accordance with EN 813) or full body harnesses (in accordance with EN 361) to a working line and a safety line to allow access, egress and changes in the work position, to give support and to protect against falls. Attention is drawn to the limitations of rope adjustment devices. Type A rope
21、 adjustment devices are for use on safety lines to prevent a fall in the event of failure of the working line or its components. However in extreme circumstances, such as failure of the working line or its components during improper use of the system, type A rope adjustment devices may be called upo
22、n to prevent or arrest a limited fall. This is reflected in the test requirements. Type B and C rope adjustment devices are for ascending and descending a working line respectively, but also have a fall prevention function. The design of each type may be incorporated into another when, in every case
23、, they should meet the higher requirements of any common or similar test. In a rope access system, the worker should always be protected by a type A rope adjustment device connected to a safety line and a type B or C rope adjustment device connected to a working line. The two rope adjustment devices
24、 with their respective anchor line are all components of the protective system. It is fundamental for the safe use of a rope access system that the worker is always connected to both anchor lines, and that any slack in the anchor lines and connecting lanyards is avoided. EN 12841:2006 (E) 5 1 Scope
25、This European Standard applies to rope adjustment devices intended for use in rope access systems. It specifies the requirements, test methods, marking and information supplied by the manufacturer. Rope adjustment devices conforming to this European Standard may be designed for the use of one person
26、, or in case of rescue, for two persons simultaneously. The rope adjustment devices as specified are not suitable for use in a fall arrest system. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition
27、cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 362, Personal protective equipment against falls from a height Connectors EN 364:1992, Personal protective equipment against falls from a height Test methods EN 365, Personal p
28、rotective equipment against falls from a height General requirements for instructions for use, maintenance, periodic examination, repair, marking and packaging EN 892, Mountaineering equipment Dynamic mountaineering ropes Safety requirements and test methods EN 1891, Personal protective equipment fo
29、r the prevention of falls from a height Low stretch kernmantel ropes EN ISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verification and calibration of the force-measuring system (ISO 7500-1:2004) prEN ISO 9227, Corrosion t
30、ests in artificial atmospheres Salt spray test (ISO 9227:2006) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 adjustable anchor line anchor line with a rope adjustment device connected to it 3.2 anchor line flexible line connected at least a
31、t one end to an anchor to provide a means of support, restraint or other safeguard for a person NOTE An anchor line may be a working line or a safety line. 3.3 anchor secure part of construction or structure to which an anchor line is connected EN 12841:2006 (E) 6 3.4 arrest distance arrest distance
32、 Hain metres, which the type A rope adjustment device uses to take up the fall, as measured in the dynamic performance test NOTE Dynamic performance test refers to 5.6.2. 3.5 braking force maximum force Fmaxin kilonewtons, measured at the anchor during the braking period of the dynamic performance t
33、est NOTE Dynamic performance test refers to 5.6.2. 3.6 component part of a system at a point of sale by the manufacturer, supplied with packaging, marking and information supplied by the manufacturer NOTE Harnesses and connectors are examples of components of a system. 3.7 attachment point primary p
34、oint of connection to the rope adjustment device, as described by the manufacturer 3.8 descent control element integral element of the type C rope adjustment device, normally operated by hand, used to control the velocity of descent down the descent line 3.9 hands-free locking element integral part
35、or function of the descent control element of a type C rope adjustment device which completely stops the descent and thereby prevents an uncontrolled descent or a fall if the user fails to engage the rope adjustment device 3.10 panic-locking element integral part or function of the descent control e
36、lement of a type C rope adjustment device which completely stops the descent and thereby prevents an uncontrolled descent or a fall if the user panics and operates the rope adjustment device beyond its intended descent control parameters 3.11 personal fall protection system assembly of components fo
37、r protection against falls from a height at work when the risk of a fall exists, including at least a body holding device connected to a reliable anchor NOTE Excludes systems for professional and private sports activities. 3.12 maximum rated load maximum mass in kilograms of personnel, including too
38、ls and equipment, to be used with the rope adjustment device, as specified by the manufacturer 3.13 release prevention function mechanism or method to prevent the rope adjustment device from accidentally releasing the anchor line EN 12841:2006 (E) 7 3.14 rope access system personal fall protection s
39、ystem, which comprises two separately secured sub-systems, one as the working line and the other as the safety line, which are used for getting to and from the place of work, and which can be used for work positioning and rescue 3.15 rope adjustment device component which, when fitted to an anchor l
40、ine of appropriate diameter and type, will enable the user to vary his or her position along it NOTE Rope adjustment devices are sub-divided into Types A, B and C. The same rope adjustment device may conform to more than one type. 3.16 Type A rope adjustment device: safety line adjustment device rop
41、e adjustment device for a safety line which accompanies the user during changes of position and/or allows adjustment of the safety line, and which locks automatically to the safety line under static or dynamic loading 3.17 Type B rope adjustment device: working line ascender manually operated rope a
42、djustment device which, when attached to a working line, locks under load in one direction and slides freely in the opposite direction NOTE Type B rope adjustment devices are intended always to be used in conjunction with a Type A rope adjustment device connected to a safety line. 3.18 Type C rope a
43、djustment device: working line descender manually operated, friction inducing rope adjustment device which allows the user to achieve a controlled downward motion and a stop, with hands off, anywhere on the working line NOTE Type C rope adjustment devices are intended always to be used in conjunctio
44、n with a Type A rope adjustment device connected to a safety line. 3.19 safety line anchor line provided as a safeguard 3.20 working line anchor line used primarily for support during access, egress and work positioning 3.21 work positioning technique that enables a person to work supported in tensi
45、on or suspension by personal protective equipment in such a way that a fall is prevented NOTE Work positioning in a rope access system is a specific technique, and is not intended to conform to work positioning in accordance with EN 358. EN 12841:2006 (E) 8 4 Requirements 4.1 General 4.1.1 Anchor li
46、nes Rope adjustment devices shall be tested in accordance with Clause 5. All the tests, with the exception of 5.4.7, shall be performed on two adjustable anchor lines, one to the minimum and the other to the maximum diameter as marked on the rope adjustment device. NOTE For rope adjustment devices w
47、hich clearly specify in the information supplied by the manufacturer that they are to be used only with one defined anchor line of a specific diameter, it is only necessary to carry out the tests on that anchor line. If rope adjustment devices are specifically designed for use with types of anchor l
48、ines other than those conforming to EN 1891 Type A ropes, each type and model specified in the information supplied by the manufacturer of the rope adjustment device shall be tested. For Type A rope adjustment devices intended to be used with more than one type or model of anchor line conforming to
49、EN 1891 Type A ropes, the rope adjustment device shall be tested with each type or model of anchor line. This can be done either fully in accordance with this European Standard or as a minimum the rope adjustment device shall meet the requirements of 4.2.5 and 4.2.6 when tested on anchor lines to EN 1891 Type A different from those listed in the information supplied by the manufacturer. 4.1.2 Compatibility A rope adjustment device shall be compatible with and capable of attachment to an anchor lin
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