1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1891:1998 The Europ
2、ean Standard EN 1891:1998 has the status of a British Standard ICS 13.340.99 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Personal protective equipment for the prevention of falls from a height Low stretch kernmantel ropesThis British Standard, having been prepared under th
3、e direction of the Health and Environment Sector Board, was published under the authority of the Standards Board and comes into effect on 15 September 1998 BSI 1998 ISBN 0 580 29836 1 BS EN 1891:1998 Amendments issued since publication Amd. No. Date Text affected National foreword This British Stand
4、ard is the English language version of EN 1891:1998. The UK participation in its preparation was entrusted to Technical Committee PH/5, Industrial safety belts and harnesses, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enqu
5、iries 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 represented on this committee can be obtained on request to its secretary. Cross-references The Bri
6、tish 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 Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A Briti
7、sh 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 confer immunity from legal obligations. Summary of pages This document comprises a front
8、 cover, an inside front cover, the EN title page, pages 2 to 16, an inside back cover and a back cover.CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of explo
9、itation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1891:1998 E EUROPEAN STANDARD EN 1891 NORME EUROPE ENNE EUROPA ISCHE NORM April 1998 ICS 13.340.99 Descriptors: Personal protective equipment, accident prevention, protection against fall, ropes, textiles,
10、definitions, specifications, characteristics, elongation, sliding, tests, marking, information English version Personal protective equipment for the prevention of falls from a height Low stretch kernmantel ropes Equipement de protection individuelle pour la pre vention des chutes de hauteur Cordes t
11、resse es gaine es a faible coefficient dallongement Perso nliche Schutzausru stung zur Verhinderung von Abstu rzen Kernmantelseile mit geringer Dehnung This European Standard was approved by CEN on 25 March 1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipula
12、te 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 member. This European Standard exis
13、ts 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 members are the national standards bod
14、ies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 1891:1998 BSI 1998 Foreword This European Standard has been prepared by Technical Committee
15、CEN/TC 160, Protection against falls from 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 publication of an identical text or by endorsement, at the latest by October 1998, and conflicting nat
16、ional standards shall be withdrawn at the latest by October 1998. 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 EU Directive(s), s
17、ee informative annex ZA, which is an integral part of this standard. The annex A is 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, Denmark
18、, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 0 Introduction 3 1 Scope 3 2 Normative references 3 3 Definitions 3 3.1 Low stretch kernmantel rope 3 3.2 Rope access 3
19、3.3 Work positioning 3 3.4 Type A ropes 3 3.5 Type B ropes 3 4 Requirements 3 4.1 Materials 3 4.2 Rope diameter D 3 4.3 Knotability K 3 4.4 Sheath slippage S s 4 4.5 Elongation E 4 4.6 Shrinkage R 4 4.7 Mass per unit length M 4 4.8 Mass of the outer sheath material S p 4 4.9 Mass of the core materia
20、l C 4 4.10 Fall arrest peak force F 4 4.11 Dynamic performance 4 4.12 Static strength 4 5 Test methods 5 5.1 Samples 5 5.2 Conditioning 5 5.3 Rope diameter D 5 5.4 Knotability K 5 5.5 Sheath slippage S S 6 5.6 Elongation E 8 5.7 Shrinkage R 8 5.8 Mass per unit length M, core material C and sheath ma
21、terial S P 9 5.9 Dynamic tests 9 5.10 Static strength test of terminations 12 6 Marking 12 7 Information to be supplied by the manufacturer including instructions for use 13 Annex A (informative) Recommendations for inspection and care of low stretch kernmantel ropes in use 14 Annex ZA (informative)
22、 Clauses of this European Standard addressing essential requirements or other provisions of EU Directives 16Page 3 EN 1891:1998 BSI 1998 Introduction Ropes for use in rope access, rescue and in speleology are used in similar ways and therefore require the same characteristics. They are used in combi
23、nation with ascending, descending and safety devices for work positioning in rope access; lowering or raising casualties in rescue; as a means of ascent, descent and horizontal motion in speleology. The characteristics required are low extension during normal working procedure but with the capacity
24、to withstand forces generated by a fall. Some energy absorption of these impact forces is also desirable, the amount usually a compromise with the acceptable extension during normal working practice. 1 Scope This European Standard applies to low stretch textile ropes of kernmantel construction from
25、8,5 mm to 16 mm diameter, for use by persons in rope access including all kinds of work positioning and restraint; for rescue and in speleology. Two types of low stretch kernmantel rope are defined: A and B. The European Standard specifies requirements, testing, marking and information to be supplie
26、d by the manufacturer including instructions for use of such low stretch kernmantel ropes. NOTE 1 It is possible that rope not conforming to this European Standard may also be suitable for the activities described above. NOTE 2 Ropes used for protection during any free climbing activity in rope acce
27、ss, rescue or speleology should take account of other standards, e.g. EN 892. Dynamic mountaineering rope may also be used for protection during rope access and work positioning. 2 Normative references This European Standard incorporates, by dated or undated reference, provisions from other publicat
28、ions. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision.
29、For undated references the latest edition of the publication referred to applies. EN 364:1992, Personal protective equipment against falls from a height Test methods. EN 365:1992, Personal protective equipment against falls from a height General requirements for instructions for use and for marking.
30、 EN 701:1995, Fibre ropes for general service General specification. EN 919:1995, Fibre ropes for general service Determination of certain physical and mechanical properties. EN 892, Mountaineering equipment Dynamic mountaineering ropes Safety requirements and test methods. 3 Definitions For the pur
31、poses of this European Standard the following definitions shall apply: 3.1 low stretch kernmantel rope a textile rope consisting of a core enclosed by a sheath, designed for use by persons in rope access including all kinds of work positioning and restraint; for rescue and speleology NOTE The core i
32、s usually the main load bearing element and typically consists of parallel elements which have been drawn and turned together in single or several layers, or of braided elements. The sheath is generally braided and protects the core, for example from external abrasion and ultraviolet degradation. 3.
33、2 rope access the technique of using ropes, in combination with other devices, for getting to and from the place of work and for work positioning 3.3 work positioning a technique which enables a person to work supported in tension or suspension by personal protective equipment, in such a way that a
34、fall is prevented 3.4 type A ropes low stretch kernmantel ropes designed for general use by persons in rope access including all kinds of work positioning and restaint; in rescue and in speleology 3.5 type B ropes low stretch kernmantel ropes of a lower performance than type A ropes, requiring great
35、er care in use 4 Requirements 4.1 Materials Materials used in the manufacture of low stretch kernmantel ropes shall be of continuous virgin synthetic fibre. The materials used for the construction of the sheath and the core shall be known to have a melting point 1958C. 4.2 Rope diameter D When calcu
36、lated as the arithmetic mean of the six measurements described in 5.3, the rope diameter D shall be a minimum of 8,5 mm and a maximum of 16 mm. 4.3 Knotability K The rigidity of the low stretch kernmantel rope shall be such that the knotability K shall be less than 1,2 when determined in the knot te
37、st specified in 5.4.Page 4 EN 1891:1998 BSI 1998 4.4 Sheath slippage S s Sheath slippage S s in a longitudinal direction relative to the core shall be determined as specified in 5.5. With the rope diameter D as specified in 5.3, the sheath slippage for type A ropes shall not exceed 2 0m m+1 0(D29 mm
38、) for ropes up to 12 mm diameter, and 20 mm + 5 (D2 12 mm) for ropes with a diameter between 12,1 mm and 16 mm. For type B ropes the sheath slippage shall not exceed 15 mm. Measurements shall be according to value V in 5.5.6 and shall be reported as a percentage as described in 5.5.6. 4.5 Elongation
39、 E When tested as described in 5.6, the elongation E shall not exceed 5 %. 4.6 Shrinkage R Shrinkage R shall be determined as described in 5.7. 4.7 Mass per unit length M The mass per unit length M of 1000 mm of low stretch kernmantel rope shall be determined as described in 5.8. 4.8 Mass of the out
40、er sheath material S p When tested as described in 5.8, the minimum mass of the material used in the sheath alone, as a percentage of the total mass of the low stretch kernmantel rope, shall be: S min = . 100 in percentage 2 2 2 D 2 D2 2 2 2 D 2 which can be simplified to: S min = . 100 in percentag
41、e 4D2 4 D 2 where S = sheath and D = rope diameter as measured in 5.3. If the construction of the low stretch kernmantel rope is such that separating the sheath and the core is impracticable, an appropriate substitute method of determining the percentage mass of the outer sheath material may be used
42、. 4.9 Mass of the core material C When tested as described in 5.8, the minimum mass of the material used in the core alone, as a percentage of the total mass of the low stretch kernmantel rope, shall be: for type A ropes: C min = . 100 in percentage 12 2 D 2 which can be simplified to: C min = . 100
43、 in percentage 48 D 2 for type B ropes: C min = . 100 in percentage 10 2 D 2 which can be simplified to: C min = . 100 in percentage 40 D 2 where C = core and D = rope diameter as measured in 5.3. If the construction of the low stretch kernmantel rope is such that separating the sheath and the core
44、is impracticable, an appropriate substitute method of determining the percentage mass of the core material may be used. 4.10 Fall arrest peak force F When tested as described in 5.9.4, the peak force shall not exceed 6 kN. 4.11 Dynamic performance When tested as described in 5.9.5, the low stretch k
45、ernmantel rope shall withstand five falls without releasing the mass. 4.12 Static strength 4.12.1 Static strength without terminations When tested according to the appropriate parts of 4.1, 5.1, 6, 8.1, 8.2, 8.5 and 9.5 of EN 919:1995, the low stretch kernmantel rope shall sustain a force of at leas
46、t 22 kN for type A ropes and at least 18 kN for type B ropes. 4.12.2 Static strength with terminations Terminations may be made with knots or by other methods. When tested as described in 5.10, the low stretch kernmantel rope including terminations shall sustain a force of (15 ) kN for type A ropes
47、and 0 +0,5 (12 ) kN for type B ropes, each for a period of 0 +0,5 3 min. It shall be possible to create a termination (loop) suitable for use as an attachment point anywhere on the low stretch kernmantel rope, for example, a figure of eight knot.Page 5 EN 1891:1998 BSI 1998 Dimensions in millimetres
48、 Figure 1 Gauge for determining knotability K 5 Test methods 5.1 Samples The number and length of rope samples to be tested are noted in each test clause. The samples shall correspond to low stretch kernmantel ropes to be marketed in every respect except for colour, for which there is no requirement
49、. 5.2 Conditioning All the rope samples shall be conditioned in an atmosphere of less than 10% humidity for at least 24 h. The rope samples shall then be stored at a temperature of (20 2)8C and a humidity of (65 5) % for at least 72 h. Tests shall be carried out at a temperature of (23 5)8C. 5.3 Rope diameter D 5.3.1 Sample One unused rope sample having a minimum length of 3 000 mm shall be used for the test. 5.3.2 Procedure 5.3.2.1 Attach one end of the rope sample to a suitable fixt
