BS 8513-2009 Personal fall protection equipment - Twin-legged energy-absorbing lanyards - Specification《防坠落人身保护设备 双腿能量吸收系索 规范》.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsWB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1Personal fall protection equipment Twinlegged energyabsorbing lanyards SpecificationBS 8513:2009BS 8513:2009 BRIT

2、ISH STANDARDPublishing and copyright informationThe BSI copyright notice displayed in this document indicates when the document was last issued. BSI 2009 ISBN 978 0 580 59919 4ICS 13.340.60The following BSI references relate to the work on this standard: Committee reference PH/5 Draft for comment 08

3、/30169728 DCPublication historyFirst published June 2009Amendments issued since publicationDate Text affected BRITISH STANDARD BSI 2009 iBS 8513:2009ContentsForeword ii1 Scope 12 Normative references 13 Terms and definitions 14 Requirements 35 Test methods 46 Marking 107 Information to be supplied b

4、y the manufacturer 108 Packaging 11Bibliography 12List of figuresFigure 1 Twin-legged energy-absorbing lanyard 2Figure 2 Arrangement for dynamic performance test 6Figure 3 Arrangement for measurement across legs and across the opening of the connector gate 7Figure 4 Arrangement for dynamic test in Y

5、-configuration 7Figure 5 Arrangement for static strength test through leg 8Figure 6 Arrangement for static strength test across both legs 9Figure 7 Arrangement for static strength test in Y-configuration 9List of tablesTable 1 Testing scheme 5Summary of pagesThis document comprises a front cover, an

6、 inside front cover, pages i to ii, pages 1 to 12, an inside back cover and a back cover.BS 8513:2009ii BSI 2009BRITISH STANDARDForewordPublishing informationThis British Standard is published by BSI and came into effect on . It was prepared by Technical Committee PH/5, 30 June 2009Personal fall pro

7、tection. A list of organizations represented on this committee can be obtained on request to its secretary.Information about this documentThis standard does not include requirements or testing for resistance of textile materials to UV degradation and abrasion. Tests for these features are under deve

8、lopment and it is envisaged that they will be included in a future revision of the standard.Hazard warningsWARNING. This British Standard calls for the use of substances and/or procedures that can be injurious to health if adequate precautions are not taken. It refers only to technical suitability a

9、nd does not absolve the user from legal obligations relating to health and safety at any stage.Presentational conventionsThe provisions of this standard are presented in roman (i.e. upright) type. Its requirements are expressed in sentences in which the principal auxiliary verb is “shall”.Commentary

10、, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element.Contractual and legal considerationsThis publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct applicati

11、on.Compliance with a British Standard cannot confer immunity from legal obligations.BRITISH STANDARD BSI 2009 1BS 8513:20091 ScopeThis British Standard specifies the requirements, test methods, marking and information to be supplied by the manufacturer for twin-legged energy-absorbing lanyards for u

12、sers with a mass of up to 100 kg including clothing and equipment. Twin-legged energy-absorbing lanyards conforming to this British Standard can be used as components in the personal fall protection systems specified in BS EN 363.2 Normative referencesThe following referenced documents are indispens

13、able for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.BS EN 362:2004, Personal protective equipment against falls from a height ConnectorsBS EN 364:1993

14、, Personal protective equipment against falls from a height Test methodsBS EN 365:2004, Personal protective equipment against falls from a height General requirements for instructions for use, maintenance, periodic examination, repair, marking and packagingBS EN ISO 9227, Corrosion tests in artifici

15、al atmospheres Salt spray testsISO 1835, Short link chain for lifting purposes Grade M(4), noncalibrated, for chain slings etc.ISO 2232, Round drawn wire for general purpose nonalloy steel wire ropes and for large diameter steel wire ropes Specifications3 Terms and definitionsFor the purposes of thi

16、s British Standard, the following terms and definitions apply.3.1 twinlegged energyabsorbing lanyardcomponent of a personal fall protection system comprising an energy absorber and two integral lanyards NOTE The configuration is illustrated in Figure 1.3.2 legone of the integral lanyards and its con

17、nectorNOTE The legs describe the upper parts of a Yshaped configuration of a twinlegged energyabsorbing lanyard designed to enable a user to attach to a second attachment point. A leg may be of synthetic fibre rope, wire rope, webbing or chain. 3.3 lower limbthat part of a twin-legged energy-absorbi

18、ng lanyard which incorporates the energy absorber and a connector 3.4 energy absorberelement or component of a twin-legged energy-absorbing lanyard, which is designed to dissipate the kinetic energy developed during a fall from a height BS 8513:20092 BSI 2009BRITISH STANDARD3.5 braking forcemaximum

19、force Fmaxin kilonewtons, measured at the lower limb during the braking period of a dynamic test 3.6 connectoropenable device used to connect components, which enables the user to assemble a system in order to link himself/herself directly or indirectly to an anchor BS EN 362:20043.7 maximum rated l

20、oadmaximum mass of the user, including tools and equipment carried, with which the twin-legged energy-absorbing lanyard can be used, as specified by the manufacturerFigure 1 Twinlegged energyabsorbing lanyard214344Key1 Leg2 Lower limb3 Energy absorber4 ConnectorsBRITISH STANDARD BSI 2009 3BS 8513:20

21、094 Requirements4.1 Materials and construction4.1.1 GeneralThe two legs shall both be permanently attached to one end of the lower limb.NOTE 1 The legs may be connected to the lower limb directly, e.g. by stitching, or indirectly, e.g. by means of a closed link, such as a Dring or Oring.NOTE 2 The t

22、wo legs may be of different lengths.The free end of the lower limb and each of the legs shall be terminated with an integral connector conforming to BS EN 362.It shall not be possible to dismantle a twin-legged energy-absorbing lanyard without mutilating it. The length of a twin-legged energy-absorb

23、ing lanyard, when measured with the longest leg and lower limb (including connectors) laid out straight and held taut by hand, shall not exceed 1.5 m.4.1.2 Fibre ropes and webbingFibre ropes, webbing and sewing threads for twin-legged energy-absorbing lanyards shall be made from virgin filament or m

24、ultifilament synthetic fibres. The breaking tenacity of the synthetic fibres shall be not less than 0.6 N/tex.4.1.3 Wire ropesWire ropes for twin-legged energy-absorbing lanyards shall be made from steel. The ferrules of the terminations shall be made from a ductile metallic material e.g. aluminium.

25、Wire ropes, which are not made from stainless steel, shall be galvanized in accordance with ISO 2232.4.1.4 ChainsChains shall, as a minimum, conform to the performance requirements of chain made from 6 mm diameter wire as specified in ISO 1835. Egg-shaped or similar end links and all connecting link

26、s shall be compatible with the chain in all respects.4.2 Corrosion resistanceTwin-legged energy-absorbing lanyards with metallic components shall be tested in accordance with 5.8. When a twin-legged energy-absorbing lanyard with metallic components is tested in accordance with 5.8, none of the metal

27、lic components shall show evidence of corrosion of the base metal. The presence of tarnishing and/or white scaling shall be deemed acceptable.NOTE Conformity to this requirement does not imply suitability for use in a marine environment.BS 8513:20094 BSI 2009BRITISH STANDARD4.3 Static preloadingWhen

28、 tested in accordance with 5.2, using a test force of 2 kN, the permanent extension of the energy absorber after preloading shall be not greater than 50 mm. 4.4 Dynamic performanceWhen each leg in turn is tested in accordance with 5.3, with a rigid steel mass of 100 kg, the braking force, Fmax, shal

29、l not exceed 6 kN. The arrest distance, H, in metres (m) shall be as given by the formula: H 2L + 1.75whereL is the length of the leg and lower limb including connectors, in metres (m).4.5 Dynamic test in YconfigurationWhen tested in accordance with 5.4, with a rigid steel mass of 100 kg, the brakin

30、g force, Fmax, shall not exceed 6 kN, neither of the legs or the lower limb shall break and the connectors shall remain attached.4.6 Static strength through legWhen tested in accordance with 5.5, with a test force of 15 kN, each leg and the fully deployed lower limb energy absorber shall not break.

31、4.7 Static strength across both legsWhen tested in accordance with 5.6, with a test force of 22 kN, the legs shall not break.4.8 Static strength in YconfigurationWhen tested in accordance with 5.7, with a test force of 15 kN, the twin-legged energy-absorbing lanyard shall not break.4.9 Marking and i

32、nformationMarking of the twin-legged energy-absorbing lanyard shall be in accordance with Clause 6.Information shall be supplied with the twin-legged energy-absorbing lanyard in accordance with Clause 7.5 Test methods5.1 SamplesTesting shall be carried out on a minimum of five twin-legged energy-abs

33、orbing lanyards in accordance with the scheme given in Table 1.NOTE Each test may be carried out on a separate twinlegged energyabsorbing lanyard at the manufacturers discretion.BRITISH STANDARD BSI 2009 5BS 8513:2009Table 1 Testing schemeTest Sample numberLeg numberStatic preload (5.2) 1 Dynamic pe

34、rformance (5.3) 2 13 2Dynamic test in Y-configuration (5.4) 4 Static strength through leg (5.5) 2 13 2Static strength across both legs (5.6) 5 Static strength in Y-configuration (5.7) 4 Corrosion resistance (5.8) 1 5.2 Static preload test5.2.1 ApparatusThe static preloading test apparatus shall conf

35、orm to BS EN 364:1993, 5.3.1.5.2.2 MethodInstall the twin-legged energy-absorbing lanyard in the test apparatus and submit it to the specified static preloading test force between the end of the longest leg and the end of the lower limb. Maintain the force for a period of 3 min. Measure the length o

36、f the energy absorber before and after the test and determine the magnitude of any permanent extension.Alternatively, install the lanyard in the test frame, suspended from the longest leg and suspend a mass of 204 kg for 3 min from the end of the lower limb. Measure the length of the energy absorber

37、 before and after the test and determine the magnitude of any permanent extension.5.3 Dynamic performance test5.3.1 ApparatusThe dynamic performance test apparatus, structure and quick release device shall conform to BS EN 364:1993, 4.4 and 4.6, respectively. The rigid steel mass shall be (100 null

38、1) kg and otherwise shall conform to BS EN 364:1993, 4.5.5.3.2 Method5.3.2.1 Attach the mass incorporating the force measurement instrument to the connector at the lower limb and attach one of the legs by its connector to the rigid structural anchorage point. 5.3.2.2 Raise the mass by the full heigh

39、t of the combined leg and lower limb and at a maximum of 300 mm horizontally from the rigid structural anchorage point. Hold the mass by the quick release device.BS 8513:20096 BSI 2009BRITISH STANDARD5.3.2.3 Let the mass fall and measure the peak force during the fall arrest stage. After the fall an

40、d with the mass at rest, measure the displacement, H, of the point of attachment of the mass (see Figure 2).5.3.2.4 Using a new test specimen, repeat the test on the other leg.Figure 2 Arrangement for dynamic performance testDimensions in millimetres3006435127HKey1 Leg 12 Leg 23 Lower limb energy ab

41、sorber4 Force measurement instrument5 Rigid steel mass6 Quick release device7 Rigid anchor point5.4 Dynamic test in Yconfiguration5.4.1 ApparatusThe dynamic test apparatus, structure and quick release device shall conform to BS EN 364:1993, 4.4 and 4.6, respectively, but with two anchor points posit

42、ioned in accordance with 5.4.2.1 and 5.4.2.2. The rigid steel mass shall be (100 null 1) kg and shall otherwise conform to BS EN 364:1993, 4.5.BRITISH STANDARD BSI 2009 7BS 8513:20095.4.2 Method5.4.2.1 With the connector gate closed on leg 1, measure the distance, Lt, across the legs and across the

43、opening of the connector gate on leg 2 when the legs are extended at a force of (50 null 5) N (see Figure 3).Figure 3 Arrangement for measurement across legs and across the opening of the connector gate132LtKey1 Leg 12 Leg 23 Lower limb energy absorber5.4.2.2 Secure compatible anchor points distance

44、d (Lt 10 )50mm (outer dimension) apart in the test apparatus. Install the twin-legged energy-absorbing lanyard in a Y-configuration in the test apparatus, ensuring that all connector gates are closed. Attach the rigid steel mass to the free end of the lower limb.5.4.2.3 Raise the mass as far as the

45、lower limb allows without deploying the energy absorber. Hold the mass by the quick release device at a maximum distance of 300 mm away from the line of the anchor points (see Figure 4). Allow the mass to fall and measure the peak force at the fall arrest stage.Figure 4 Arrangement for dynamic test

46、in YconfigurationDimensions in millimetres1(L t-10)300727356405-a) Front view b) Side viewKey1 Leg 12 Leg 23 Lower limb4 Force measurement instrument5 Rigid steel mass6 Quick release device7 Rigid anchorage pointsBS 8513:20098 BSI 2009BRITISH STANDARD5.5 Static strength test through leg5.5.1 Apparat

47、usThe static strength test apparatus shall conform to BS EN 364:1993, 4.1.5.5.2 Method 5.5.2.1 Install one of the legs and the lower limb (with the energy absorber fully deployed) in the test apparatus and submit them to the specified test force (see 4.6) between the two end points (see Figure 5). M

48、aintain the force for a period of (180 null 15) s.Figure 5 Arrangement for static strength test through leg213FKey1 Leg 12 Leg 23 Lower limb energy absorber (fully deployed)F Direction of test force5.5.2.2 Repeat 5.5.2.1 using the other leg.5.6 Static strength test across both legs5.6.1 ApparatusThe

49、 test apparatus shall conform to BS EN 364:1993, 4.1.5.6.2 MethodInstall the legs in the test apparatus and submit them to the specified test force (see 4.7) between the two end points (see Figure 6). Maintain the force for a period of (180 null 15) s.5.7 Static strength test in Yconfiguration 5.7.1 ApparatusThe test apparatus shall conform to BS EN 364:1993, 4.1.BRITISH STANDARD BSI 2009 9BS 8513:20095.7.2 Method5.7.2.1 With the connector gate closed on leg 1, measure the distance, Lt, acro