CSA Z259 11-2005 Energy absorbers and lanyards (Second Edition Update No 1 October 2007).pdf

1、Z259.11-05(reaffirmed 2015)Energy absorbers and lanyardsLegal Notice for StandardsCanadian Standards Association (CSA) standards are developed through a consensus standards development process approved by the Standards Council of Canada. This process brings together volunteers representing varied vi

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15、d in this Legal Notice, you may not load or use this document or make any copies of the contents hereof, and if you do make such copies, you are required to destroy them immediately. Use of this document constitutes your acceptance of the terms and conditions of this Legal Notice.Update No. 1Z259.11

16、-05October 2007Note: General Instructions for CSA Standards are now called Updates. Please contact CSA Information Products Sales or visit www.ShopCSA.ca for information about the CSA Standards Update Service.Title: Energy absorbers and lanyards originally published February 2005The following revisi

17、ons have been formally approved and are marked by the symbol delta () in the margin on the attached replacement pages:Revised Clause 6.1.3.1New NoneDeleted NoneCSA Z259.11-05 originally consisted of 33 pages (x preliminary and 23 text), each dated February 2005. It now consists of the following page

18、s:February 2005 iiix, 114, and 1723October 2007 15 and 16 Update your copy by inserting these revised pages.Keep the pages you remove for reference. Canadian Standards Association Energy absorbers and lanyardsOctober 2007Figure 8Frequency response characteristics for the force-measuring instrumentat

19、ion when testing personal fall arrest systems(See Clause 6.1.1.4.)6.1.1.5 Drop test structure6.1.1.5.1 Natural frequencyThe natural frequency of the drop test structure measured along the vertical axis of the point of anchorage of the tested system shall be at least 200 Hz.6.1.1.5.2 Elastic deformat

20、ionThe maximum elastic deformation of the test structure at the point of anchorage of the tested system shall be 1.0 mm (0.04 in) for a 20.0 kN (4500 lbf) load applied in the intended direction of loading.Legend: a = 1/4 dBb = + 1/2 dB, 1 dBc = + 1/2 dB, 3 dBd = 9 dB/octavee = 24 dB/octavefH= 60 Hzf

21、L= 0.1 HzfN= 100 Hzg = 30 dBgbcde1001020304050afffL H NLog frequency (Hz)Output/input ratio (dB)15(Replaces p. 15, February 2005)Z259.11-05 Canadian Standards AssociationOctober 20076.1.1.6 Wire-rope test linkA wire-rope test link equipped with thimble eyes and splices secured with mechanical sleeve

22、s shall be provided for the energy absorber tests. The test link shall be fabricated from Type 302 stainless steel in a 9.5 mm (0.37 in) diameter, 7 19 aircraft-cable construction. Its length shall be capable of introducing a 1.8 m (5.9 ft) free drop.6.1.2 Dynamic drop test6.1.2.1 The test mass spec

23、ified in Clause 6.1.1.1 shall be suspended from a hoist through a quick-release mechanism (see Figure 9). The load cell shall be attached to an eyebolt on the drop test structure. One end of the energy absorber to be tested shall be attached to the load cell, and the other end shall be attached to t

24、he test mass. If the energy absorber has a total length of less than 1 m (3.3 ft), a wire-rope test link (see Clause 6.1.1.6) shall be employed to achieve the required drop distance.6.1.2.2 The test mass shall be lowered until the energy absorber is at full tension. The following information shall b

25、e recorded:(a) Lmin, the initial length of the energy absorber or integral energy absorber and lanyard, m; and(b) Ei, the initial elevation of the attachment point above an immovable reference point (such as the floor below the test mass), m.6.1.2.3 The test mass shall be raised until the attachment

26、 point has been lifted a distance equal to the free-fall drop height of 1.8 m (5.9 ft). The drop mass shall be released by means of the quick-release mechanism.Subsequent to each dynamic drop test, the following information shall be measured, calculated, and recorded:(a) h, the free-fall height, m;(

27、b) m, the test mass, kg;(c) Ef, the final elevation of the attachment point above the immovable reference point, m;(d) x, the permanent elongation, or Ef Ei , m;(e) Fp, the peak impact force measured during the dynamic drop test, kN; and(f) Favg, the average arrest force, or (1+h/x) mg/1000, kN.6.1.

28、3 Static resistance test6.1.3.1 Initial static resistance testThe energy absorber shall be subjected to a tensile force of 2.0 kN (450 lbf) across its ends. The force shall be applied gradually over 30 s to reduce any dynamic effect, and then the full force shall be maintained for 2 min. Elongation

29、shall be measured 5 min after release of the force.6.1.3.2 Final static resistance testThis test shall be undertaken after the energy absorber has been dynamically drop-tested in accordance with Clause 6.1.2.The energy absorber shall be subjected to a tensile force of 16.0 kN (3600 lbf) across its e

30、nds. The force shall be applied gradually over 3 min to avoid any dynamic effect, and then the full force shall be maintained for 5 min.Subsequent to each final static resistance test, the force shall be removed and the following information shall be recorded:(a) Lmin, as defined in Clause 6.1.2;(b)

31、 Lmax, the final length of the energy absorber or lanyard, or combination thereof, m; and(c) xmax, maximum elongation, or Lmax Lmin, m.(Replaces p. 16, February 2005)16CSA Standards Update ServiceZ259.11-05February 2005Title: Energy absorbers and lanyardsPagination: 33 pages (x preliminary and 23 te

32、xt), each dated February 2005To register for e-mail notification about any updates to this publicationgo to www.ShopCSA.caclick on E-mail Services under MY ACCOUNTclick on CSA Standards Update ServiceThe List ID that you will need to register for updates to this publication is 2017211.If you require

33、 assistance, please e-mail techsupportcsa.ca or call 416-747-2233.Visit CSAs policy on privacy at www.csagroup.org/legal to find out how we protect your personal information.Published in February 2005 by Canadian Standards AssociationA not-for-profit private sector organization5060 Spectrum Way, Sui

34、te 100, Mississauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4044Visit our Online Store at www.ShopCSA.caZ259.11-05Energy absorbers and lanyardsCSA StandardISBN 1-55397-627-4Technical Editor: Walter Dick Canadian Standards Association 2005All rights reserved. No part of this publication may be

35、 reproduced in any form whatsoever without the prior permission of the publisher.February 2005 iiiContents Canadian Standards Association Energy absorbers and lanyardsTechnical Committee on Fall Protection vWorking Group on Energy Absorbers and Lanyards viiiPreface ixForeword x1Scope 11.1 General 11

36、.2 Applications 11.3 Exclusions 11.4 Terminology 11.5 Units of measure 12 Reference publications 13 Definitions 24 Design requirements 34.1 Other materials and construction 34.2 Materials 34.2.1 Fibre webbing and rope 34.2.2 Wire rope and chain 44.3 Connecting components 44.4 Integral connections 44

37、.5 Energy absorber design requirements 44.5.1 Energy absorber classifications 44.5.2 Energy absorber components 44.6 Lanyard design requirements 44.6.1 Lanyard classifications 44.6.2 Design requirements Class A: Rope lanyard 54.6.3 Design requirements Class B: Web lanyard 54.6.4 Design requirements

38、Class C: Wire rope lanyard 64.6.5 Design requirements Class D: Positioning lanyard 64.6.6 Design requirements Class E: Chain positioning lanyard 74.6.7 Design requirements Class F: Adjustable positioning lanyard 74.6.8 Design requirements Y lanyard 85 Test requirements 95.1 General 95.2 Energy absor

39、ber test requirements 95.2.1 Summary 95.2.2 Samples to be tested 95.2.3 Initial static resistance test 95.2.4 Dynamic drop tests 95.2.5 Final static resistance test 115.3 Lanyard test requirements 115.3.1 Summary 115.3.2 Samples to be tested 115.3.3 Flammability test requirement Class D 12Z259.11-05

40、 Canadian Standards Associationiv February 20055.3.4 Abrasion test requirement Class D 125.3.5 Wet and frozen tensile test requirement Class D 125.3.6 Positioning lanyard test requirements Class D 135.3.7 Residual static test requirement Classes A, B, C, D, E, and F 135.3.8 Dynamic drop test require

41、ments Eyebolt and beam wrap Classes A, B, C, and E 135.3.9 Dynamic drop test requirement Eyebolt Class F 135.3.10 Adjustable lanyard slippage test requirement Classes A, B, D, and F 136Testing 136.1 Energy absorber testing 136.1.1 Test equipment 136.1.2 Dynamic drop test 166.1.3 Static resistance te

42、st 166.1.4 Sample conditioning 176.2 Lanyard testing 186.2.1 Test equipment 186.2.2 Flammability test Class D 186.2.3 Abrasion test Class D 196.2.4 Wet and frozen tensile test Class D 196.2.5 Dynamic drop test Positioning lanyard Class D 206.2.6 Dynamic drop test Classes A, B, C, and E 206.2.7 Dynam

43、ic drop test Class F 216.2.8 Residual static test Classes A, B, C, D, E, and F 216.2.9 Adjustable lanyard slippage test Classes A, B, D, and F 217 Marking and reference literature 227.1 Marking 227.1.1 Energy absorber marking 227.1.2 Lanyard marking 227.2 Reference literature Energy absorber 227.3 I

44、nstructions 22AnnexesA (informative) Lanyard length 23Tables1 Energy absorber test requirements 102 Lanyard test requirements 12Figures1 Rope lanyard Class A 52 Web lanyard Class B 63 Wire rope lanyard Class C 64 Positioning lanyard Linemans pole strap Class D 65 Chain positioning lanyard Class E 76

45、 Adjustable positioning lanyard Class F 87 Test mass 148 Frequency response characteristics for the force-measuring instrumentation when testing personal fall arrest systems 159 Energy absorber dynamic drop test 1710 Lanyard drop test 1911 Abrasion conditioner 2012 Method of attaching the test lanya

46、rd around the beam 21 Canadian Standards Association Energy absorbers and lanyardsFebruary 2005 vTechnical Committee on Fall ProtectionJ. Arteau cole de technologie suprieure,Montral, QubecChairR. Wingfield Gravitec Systems Inc.,Bainbridge Island, Washington, USAVice-ChairA.L. Albert Workplace Healt

47、h, Safety and Compensation Commission of New Brunswick,Fredericton, New BrunswickT. Best Unistrut Canada Ltd.,Ajax, OntarioC. Budziak NSafe Engineering Inc.,Oakville, OntarioAssociateR. Cavan Human Resources Development Canada, Ottawa, OntarioA. Chantelois Prochute Scurit Inc.,St-Lambert, QubecG. Ch

48、islett Aliant,St. Johns, Newfoundland and LabradorR. Cislo Alberta Human Resources and Employment,Edmonton, AlbertaP.B. Clemmons J.E. Lortie Cie Limite,Montral, QubecD. Constable Electrical CSA Z259.1 now covers body belts and saddles.The purpose of this Standard is to specify requirements for the p

49、erformance, design, testing, labelling, and marking of energy absorbers and lanyards. The major differences from the previous edition are as follows:(a) The term “energy absorber” has replaced “shock absorber” to better describe the function of this device. Fall arrest involves dissipation of the dynamic energy generated in falling in addition to minimizing the shock of stopping the fall.(b) Energy absorbers and lanyards have been placed in