ISO 10333-2-2000 Personal fall-arrest systems - Part 2 Lanyards and energy absorbers《个体防跌落系统 第2部分 缓冲器》.pdf

1、Reference number ISO 10333-2:2000(E) ISO 2000 INTERNATIONAL STANDARD ISO 10333-2 First edition 2000-03-15 Personal fall-arrest systems Part 2: Lanyards and energy absorbers Systmes individuels darrt de chute Partie 2: Longes et absorbeurs dnergieISO 10333-2:2000(E) PDF disclaimer This PDF file may c

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6、ht office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 734 10 79 E-mail copyrightiso.ch Web www.iso.ch Printed in Switzerland ii ISO 2000 All rights reservedISO 10333-2:2000(E) ISO 2000 All rights reserved iii Contents Page Foreword.iv Introduction.v 1 Scope 1 2 Normative ref

7、erences 2 3 Terms and definitions .2 3.1 Lanyards and energy absorbers 2 3.2 General definitions 4 4 Requirements.4 4.1 General4 4.2 Lanyard .4 4.3 Energy absorber 6 5 Test methods8 5.1 Apparatus .8 5.2 Lanyard tests10 5.3 Energy absorber tests.11 6 Instructions for general use, marking, packaging a

8、nd maintenance.14 6.1 Instructions for general use .14 6.2 Marking .15 6.3 Packaging.16ISO 10333-2:2000(E) iv ISO 2000 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of prepari

9、ng International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in lia

10、ison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft Internation

11、al Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part of ISO 10333

12、may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 10333-2 was prepared by Technical Committee ISO/TC 94, Personal safety Protective clothing and equipment, Subcommittee SC 4, Personal equipment for protect

13、ion against falls. ISO 10333 consists of the following parts, under the general title Personal fall-arrest systems: Part 1: Full-body harnesses Part 2: Lanyards and energy absorbers Part 3: Self-retracting lifelines Part 4: Vertical rails and vertical lifelines which incorporate a sliding-type fall

14、arrester Part 5: Connectors The systems performance tests will be the subject of a future part 6 to ISO 10333.ISO 10333-2:2000(E) ISO 2000 All rights reserved v Introduction In cases where the hazard of falling from a height exists and where, for technical reasons or for work of very short duration,

15、 safe access cannot be otherwise provided, it is necessary to consider the use of personal fall-arrest systems (PFAS). Such use should never be improvised and its adoption should be specifically provided for in the appropriate formal provisions for safety in the work place. PFAS complying with this

16、part of ISO 10333 should satisfy ergonomic requirements and should only be used if the work allows means of connection to a suitable anchor device of demonstrated strength and if it can be implemented without compromising the safety of the user. Personnel should be trained and instructed in the safe

17、 use of the equipment and be observant of such training and instruction. This part of ISO 10333 is based on current knowledge and practice concerning the use of PFAS that incorporate a full body harness as specified in ISO 10333-1. This part of ISO 10333 presumes that the manufacturer of the PFAS, s

18、ubsystems or components will, for the sake of consistency and traceability, operate a quality management system which will comply with national and regional regulations in force at the time. Guidance on the form this quality management system may take can be found in ISO 9000 (all parts), Quality ma

19、nagement and quality assurance standards.INTERNATIONAL STANDARD ISO 10333-2:2000(E) ISO 2000 All rights reserved 1 Personal fall-arrest systems Part 2: Lanyards and energy absorbers 1 Scope This part of ISO 10333 specifies requirements, test methods, instructions for use and maintenance, marking, la

20、belling and packaging, as appropriate, for lanyards and energy absorbers. Lanyards and energy absorbers are used together as a connecting subsystem in personal fall-arrest systems (PFAS) which will be specified in a future International Standard (see ISO 10333-6 in the Bibliography). Two classes of

21、energy absorbers are specified for the purposes of this part of ISO 10333: a) Type 1: used in PFAS where, due to installation, the potential free-fall distance can be limited to a maximum of 1,8 m and, if a fall takes place, the arresting force is limited to a maximum of 4,0 kN; b) Type 2: used in P

22、FAS where, due to installation, the potential free-fall distance can be limited to a maximum of 4,0 m and, if a fall takes place, the arresting force is limited to a maximum of 6,0 kN. This part of ISO 10333 is applicable only to lanyards and energy absorbers limited to single-person use of a total

23、mass not exceeding 100 kg. NOTE Users of fall-protection equipment whose total mass (including tools and equipment) exceeds 100 kg are advised to seek advice from the equipment manufacturer regarding the suitability of this equipment, which may need additional testing. For the purposes of this part

24、of ISO 10333, energy absorbers may be supplied integral to a lanyard, integral to a full body harness (FBH), or may be supplied separately. The scope of this part of ISO 10333 does not extend to: a) PFAS that incorporate lanyards without energy absorbers or without a means of energy dissipation; b)

25、special lanyards and energy absorbers which are integral (i.e. can only be separated by mutilation or by special tool) to the PFAS components as specified in ISO 10333-4. This part of ISO 10333 does not specify those additional requirements that would apply when lanyards and energy absorbers are sub

26、jected to special conditions of use (where, for example, there exist unusual limitations concerning access to the place of work and/or particular environmental factors). Thus treatments to ensure the durability of the materials of construction (such as heat treatment, anti-corrosion treatment, prote

27、ction against physical and chemical hazards) are not specified in this part of ISO 10333, but should comply with appropriate International Standards or, failing that, with national standards and other specifications dealing with relevant physical characteristics and/or the safety of users. In partic

28、ular, when it is considered necessary to test the corrosion resistance of metallic parts of the equipment, reference should be made to ISO 9227.ISO 10333-2:2000(E) 2 ISO 2000 All rights reserved 2 Normative references The following normative documents contain provisions which, through reference in t

29、his text, constitute provisions of this part of ISO 10333. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 10333 are encouraged to investigate the possibility of applying the most recent

30、 editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 1140:1990, Ropes Polyamide Specification. ISO 1141:1990, Ropes Pol

31、yester Specification. ISO 1834:1999, Short link chain for lifting purposes General conditions of acceptance. ISO 1835:1980, Short link chain for lifting purposes Grade M (4), non-calibrated,for chain slings etc. ISO 2307:1990, Ropes Determination of certain physical and mechanical properties. ISO 31

32、08:1974, Steel wire ropes for general purposes Determination of actual breaking load. ISO 4878:1981, Textiles Flat woven webbing slings made of man-made fibre. ISO 9227:1990, Corrosion tests in artificial atmospheres Salt spray tests. ISO 10333-1: 1) , Personal fall-arrest systems Part 1: Full body

33、harnesses. ISO 10333-4, Personal fall-arrest systems Part 4: Vertical rails and vertical lifelines which incorporate a sliding- type fall arrester. ISO 10333-5, Personal fall-arrest systems Part 5: Connectors. ISO 14567, Personal protective equipment for protection against falls from a height Single

34、-point anchor devices. EN 892:1996, Mountaineering equipment Dynamic mountaineering ropes Safety requirements and test methods. EN 1891:1998, Personal protective equipment for prevention of falls from a height Low stretch kernmantel ropes. 3 Terms and definitions For the purposes of this part of ISO

35、 10333, the following terms and definitions apply. 3.1 Lanyards and energy absorbers 3.1.1 lanyard finished length of flexible material, which in conjunction with an energy absorber is used as a connecting subsystem in PFAS 3.1.2 adjustable lanyard lanyard which incorporates a mechanism which allows

36、 its length to be shortened or lengthened 1) To be published.ISO 10333-2:2000(E) ISO 2000 All rights reserved 3 3.1.3 energy absorber component designed to dissipate the kinetic energy generated during a fall, and which limits the arresting forces applied to the PFAS, anchor device and user 3.1.4 en

37、ergy-absorbing lanyard lanyard with an integral energy absorber 3.1.5 FBH with energy absorber FBH with an integral energy absorber 3.1.6 permanent extension difference in the pin centre lengths of an energy absorber before and after deployment 3.1.7 pin centre length (PCL) straight line distance me

38、asured between the bearing point of one energy absorber termination to the other, with the absorber under tension S e eFi gu re1 . Figure 1 Example of an energy absorber (upper view) and an energy-absorbing lanyard (lower view) 3.1.8 deployment when the energy absorber begins and continues to perman

39、ently extend in order to dissipate the energy applied to i t,iti ssai dtoha ved ep loy ed NOTE In the case of the tear-web/tear-stitch types, tearing produces a permanent extension; in the case of the friction types, dragging of the rope or webbing through the friction device produces a permanent ex

40、tension. 3.1.9 free-fall distance total vertical distance through which a worker falls under the forces of gravity and air resistance only, from the start of the fall to the onset of the arresting forceISO 10333-2:2000(E) 4 ISO 2000 All rights reserved 3.1.10 total mass total sum of the workers mass

41、 plus all attached clothing and equipment 3.2 General definitions 3.2.1 component constituent part of a PFAS (3.2.3) or subsystem (3.2.2) that has completed the manufacturers production cycle and is available for purchase 3.2.2 subsystem constituent part of a PFAS (3.2.3) which may consist of one or

42、 more components, and is used to connect the user from the fall-arrest attachment element of the FBH to the anchor device NOTE A subsystem performs the two essential functions in PFAS of a) connecting, and b) arresting and energy absorbing. 3.2.3 personal fall-arrest system PFAS assembly of intercon

43、nected components and subsystems, including a FBH worn by the user, that when connected to a suitable anchor device will arrest a fall from a height NOTE A PFAS minimizes the fall-arrest forces, controls the total fall distance so as to prevent collision with the ground or other relevant obstruction

44、, and maintains the user in a suitable post-fall arrest attitude for rescue purposes. 4 Requirements 4.1 General To ensure that components assembled into a personal fall-arrest system perform correctly, it is recommended that they be tested in accordance with ISO 10333-6 1 . 4.2 Lanyard 4.2.1 Fibre

45、ropes and webbing 4.2.1.1 Fibre ropes, webbing and sewing threads for lanyards shall be made from virgin high-tenacity filament or multifilament synthetic fibre or fibres suitable for the intended use. 4.2.1.2 The number of strands of a laid rope shall be at least three. Three-strand polyamide ropes

46、 shall comply with ISO 1140, three-strand polyester ropes with ISO 1141. 4.2.1.3 Lanyards constructed from braided rope shall comply with EN 892 (single rope) or EN 1891, type A. Any equivalent material is acceptable. 4.2.1.4 Where lanyards are specified for, or when it is known that lanyards will b

47、e used in work carried out near welding or oxy-cutting stations or heat sources, lanyards shall be protected by suitable heat-protective means. 4.2.2 Chains Chains shall comply with the requirements for 6,0 mm chains given in ISO 1835. Egg-shaped or similar end links and all connecting links shall b

48、e compatible with the chain in all respects. After manufacture, chain lanyards shall be proof tested to the levels given in ISO 1834.ISO 10333-2:2000(E) ISO 2000 All rights reserved 5 4.2.3 Terminations 4.2.3.1 One end of a lanyard may be permanently spliced or fixed to a FBH in accordance with ISO

49、10333-1, or to an energy absorber according to this part of ISO 10333, or to a connector which meets the requirements of ISO 10333-5. The free end(s) of the lanyard shall be terminated in such a manner that they can be connected into a PFAS by an appropriate connector which meets the requirements of ISO 10333-5. 4.2.3.2 Eye splices in laid fibre rope shall consist of four tucks using all the yarns in the strands and two tapered tucks. The length of the splicing tails emerging after the l