BS EN 813-2008 Personal fall protection equipment - Sit harnesses《个人防跌落装备 坐式安全带》.pdf

1、BS EN 813:2008ICS 13.340.60NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDPersonal fallprotection equipment Sit harnessesThis British Standardwas published underthe authority of theStandards Policy andStrategy Committee on 30September 2008 BSI 2008ISBN 978 0 58

2、0 53394 5Amendments/corrigenda issued since publicationDate CommentsBS EN 813:2008National forewordThis British Standard is the UK implementation of EN 813:2008. Itsupersedes BS EN 813:1997 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PH/5, Industria

3、l safety belts and harnesses.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard c

4、annot confer immunityfrom legal obligations.BS EN 813:2008EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 813August 2008ICS 13.340.60 Supersedes EN 813:1997 English VersionPersonal fall protection equipment - Sit harnessesEquipement de protection individuelle pour la prventioncontre les chutes de

5、hauteur - Ceintures cuissardesPersnliche Absturzschutzausrstung - SitzgurteThis European Standard was approved by CEN on 4 July 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national stan

6、dard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other l

7、anguage made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finla

8、nd,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 NORMALISATIONEUROPISCHES KOMITEE

9、 FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 813:2008: EBS EN 813:2008EN 813:2008 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and

10、definitions .4 4 Requirements.5 5 Test methods8 6 Marking .14 7 Information supplied by the manufacturer .14 8 Packaging .14 Annex A (informative) Safety precautions for the ergonomic test procedure of a sit harness.15 Annex B (informative) Significant technical changes between this document and the

11、 previous edition of this European Standard.16 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 89/686/EEC17 Figures Figure 1 Examples of sit harnesses and elements 6 Figure 2 Example of a sit harness design with typical load bearing p

12、arts exerting pressure to the body indicated (by arrows). 7 Figure 3 Bowline knot. 10 Figure 4 Lanyard for dynamic strength test. 11 Figure 5 Dynamic strength test . 12 Figure 6 Static strength test. 13 BS EN 813:2008EN 813:2008 (E) 3 Foreword This document (EN 813:2008) has been prepared by Technic

13、al 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 publication of an identical text or by endorsement, at the latest by February 2009, an

14、d conflicting national standards shall be withdrawn at the latest by February 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. Th

15、is document supersedes EN 813:1997. This document 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 89/686/EEC. Annex B provides details of significant technical changes between this

16、European Standard and the previous edition EN 813:1997. 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 impleme

17、nt this European Standard: Austria, Belgium, Bulgaria, 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 an

18、d the United Kingdom. BS EN 813:2008EN 813:2008 (E) 4 1 Scope This European Standard specifies requirements, testing, marking and information to be supplied by the manufacturer for sit harnesses to be used in restraint, work positioning and rope access systems, where a low point of attachment is req

19、uired. Sit harnesses are not suitable to be used for fall arrest purposes. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referen

20、ced document (including any amendments) applies. EN 358, Personal protective equipment for work positioning and prevention of falls from a height Belts for work positioning and restraint and work positioning lanyards EN 363:2008, Personal fall protection equipment Personal fall protection systems EN

21、 364:1992, Personal protective equipment against falls from a height Test methods EN 365, Personal protective equipment against falls from a height General requirements for instructions for use, maintenance, periodic examination, repair, marking and packaging EN 892, Mountaineering equipment Dynamic

22、 mountaineering ropes Safety requirements and test methods EN ISO 9227, Corrosion tests in artificial atmospheres Salt spray tests (ISO 9227:2006) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 363:2008, and the following apply. 3.1 element part of a

23、 component NOTE Webbing, attachment elements and fittings are examples of elements. 3.2 component part of a system at a point of sale by the manufacturer, supplied with packaging, marking and instructions for use NOTE A sit harness is an example of a component of a system. 3.3 fastening and adjustme

24、nt element device which enables the sit harness to be fastened and allows adjustment to be made to meet the fitting requirements of the wearer NOTE A buckle is an example of a fastening and adjustment element. 3.4 attachment element part or parts of the sit harness intended for the load bearing conn

25、ection to other components BS EN 813:2008EN 813:2008 (E) 5 3.5 attachment point specific connecting point on the sit harness for the load bearing connection to other components, consisting of one or more attachment elements 3.6 sit harness arrangement of straps, fittings, buckles, back supports or o

26、ther elements in the form of a waist belt with a ventral attachment point and connecting support encircling each leg suitably arranged so that a conscious person can be supported in a sitting position NOTE 1 Sit harnesses may be fitted with shoulder straps. NOTE 2 A sit harness may be incorporated i

27、nto a garment or in a full body harness. 3.7 load bearing parts parts of the sit harness intended to transmit forces NOTE 1 Attachment elements, leg loops and waist belts are examples of load bearing parts. NOTE 2 Accessory parts and clothing are examples of non-load bearing parts. 3.8 back support

28、part of the sit harness intended to give physical support to the lower back of the wearer 3.9 maximum rated load (for the sit harness) maximum mass of a person or persons, including tools and equipment, to be used with the sit harness, as specified by the manufacturer NOTE Maximum rated load is expr

29、essed in kilograms. 4 Requirements 4.1 Ergonomics When tested in accordance with 5.3.1, the sit harness shall be shown to: a) be capable of adjustment to enable correct positioning on the user; b) be able to support the user in an upright sitting position while in suspension; c) allow the person wea

30、ring the sit harness to undertake a specified range of movements without undue discomfort; d) consist of metal fittings with no contact with the groin, the inside of the thighs, the armpits or the small of the back; e) remain correctly adjusted. BS EN 813:2008EN 813:2008 (E) 6 Key 1 attachment point

31、 (consisting of two attachment elements) 2 straps connecting leg loops to waist belt 3 leg loop 4 waist belt 5 fastening and adjustment element 6 back support Figure 1 Examples of sit harnesses and elements 4.2 Design, materials and construction 4.2.1 Materials 4.2.1.1 When checked in accordance wit

32、h 5.3.2.1, webbing and sewing threads shall be known to be made from virgin filament or multifilament synthetic fibres suitable for their intended use and the breaking tenacity of the synthetic fibres shall be known to be at least 0,6 N/tex. NOTE Polyamide and polyester are typical examples of mater

33、ials considered suitable for normal use. However, other materials can be more appropriate in certain circumstances. 4.2.1.2 When checked in accordance with 5.3.2.2, thread used for sewing shall be known to be physically compatible in its mechanical properties with the webbing and the shade of thread

34、 shall be such as to contrast with the shade of the webbing to facilitate visual inspection. 4.2.2 Attachment points 4.2.2.1 When checked in accordance with 5.3.2.3, the sit harness shall have at least one attachment point located at the front and to the centre. 4.2.2.2 When the sit harness has side

35、 or back attachment elements, it shall in addition to this European Standard conform to EN 358. 4.2.2.3 When checked in accordance with 5.3.2.7, shoulder straps fitted to the sit harness shall not contain attachment points. 4.2.3 Load bearing parts 4.2.3.1 When checked in accordance with 5.3.1.6, it

36、 shall be determined which parts of the sit harness are load bearing parts that exert pressure on the body. BS EN 813:2008EN 813:2008 (E) 7 Figure 2 Example of a sit harness design with typical load bearing parts exerting pressure to the body indicated (by arrows) 4.2.3.2 When checked in accordance

37、with 5.3.2.5, the width of load bearing parts where they impact on the body shall be a minimum of 43 mm (see Figure 2). Load bearing parts in other areas (typically the inner thighs where they may cause discomfort) may be less than 43 mm wide. NOTE Typically, 150 of the leg loops are load bearing pa

38、rts that exert pressure to the legs. 4.2.4 Back support 4.2.4.1 A back support shall be fitted to the waist belt. 4.2.4.2 When checked in accordance with 5.3.2.6, the minimum length of the back support shall be 50 mm longer than half the circumference of the waist belt, when adjusted to the maximum

39、circumferential length (waist size) specified by the manufacturer. The minimum width of the back support shall be 100 mm for a length of 200 mm centred on the spine of the wearer and shall be a minimum of 60 mm elsewhere. 4.2.5 Fastening and adjustment elements 4.2.5.1 When checked in accordance wit

40、h 5.3.2.8, fastening and adjustment elements shall be so designed and constructed that, when correctly fastened, they can be released only by at least two different, deliberate, manual actions. 4.2.5.2 When checked in accordance with 5.3.2.9, metal and other parts shall be free from sharp edges and

41、burrs that could cause injury. 4.2.5.3 When checked in accordance with 5.5, the slippage of fastening and adjustment elements shall be not more than 20 mm. If fastening and adjustment elements can be fastened or adjusted in more than one manner, each manner of fastening or adjustment shall be tested

42、. 4.2.6 Accessibility When checked in accordance with 5.3.2.4, the complete sit harness shall be capable of visual inspection, e.g. for signs of wear or chemical attack. This shall also apply when the sit harness is incorporated into a garment. BS EN 813:2008EN 813:2008 (E) 8 4.3 Dynamic strength Wh

43、en tested in accordance with 5.4, at each front attachment point, with a torso dummy having a minimum mass of 100 kg or a mass equivalent to the maximum rated load, whichever is the greater mass, the sit harness shall withstand one drop test without releasing the torso dummy and no load bearing part

44、 of the sit harness shall break or rupture. No element of the sit harness shall become detached. 4.4 Static strength When tested at each front attachment point in accordance with 5.5, with a force equivalent to 10 times the maximum rated load and not less than 15 kN applied for 3 min, no load bearin

45、g part shall break or rupture. No element of the sit harness shall become detached. 4.5 Corrosion resistance After testing in accordance with 5.6, metal parts of the sit harness shall not show evidence of corrosion that would affect their function. White scaling or tarnishing is acceptable if the fu

46、nction is not impaired. NOTE Conformity with this requirement does not imply suitability for use in a marine environment. 4.6 Marking and information Marking shall be in accordance with Clause 6. Information shall be supplied with the sit harness in accordance with Clause 7. 5 Test methods 5.1 Test

47、samples Four new sit harnesses shall be provided: two for the purposes of the tests specified in 5.3 and two for the purposes of the tests specified in 5.4 and 5.5. One sample provided from the test specified in 5.3 shall be used for the corrosion resistance test of 5.6. 5.2 Test subjects The test s

48、ubjects shall be two persons of different height, within the range 160 cm to 190 cm, and of different weight, within the range 60 kg to 110 kg. Each person shall be within the size range for the sit harness being examined and shall wear lightweight clothing. There shall be a size difference of at le

49、ast 15 cm between the two persons and weight difference of at least 30 kg. 5.3 Examination of design 5.3.1 Ergonomics 5.3.1.1 The tests shall be carried out by each of the test persons for each front attachment point of the sit harness designated by the manufacturer. 5.3.1.2 The test subject shall don the sit harness in accordance with the information supplied by the manufacturer. 5.3.1.3 Suspend the test subject clear of the ground by means of a suitable lifting/lowering device connected to the attachment point. The test subjects shall be dir