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1、BRITISH STANDARD BS EN 926-1:1996 Paragliding equipment Paragliders Part 1: Requirements and test methods for structural strength The European Standard EN 926-1:1995 has the status of a British Standard ICS 97.220.40 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 08:52:21 GMT+00:00 2006, Unc
2、ontrolled Copy, (c) BSI BS EN 926-1:1996 This British Standard, having been prepared under the direction of the Consumer Products and Services Sector Board, was published under the authority of the Standards Board and comes into effect on 15 March 1996 BSI 01-2000 The following BSI references relate
3、 to the work on this standard: Committee reference SW/136/6 Draft for comment 93/304592 DC ISBN 0 580 25460 7 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee SW/136, Sports, playground and other recreational equipment, to
4、 Subcommittee SW/136/6, Paragliding, upon which the following body was represented: British Hang-gliding and Paragliding Association Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 08:52:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS
5、EN 926-1:1996 BSI 01-2000i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN 926-13 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 08:52:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 926-1:1996 ii BSI 01-2000 National foreword This British
6、Standard has been prepared by Subcommittee SW/136/6 and is the English language version of EN 926-1:1995 Paragliding equipment Paragliders Part 1: Requirements and test methods for structural strength, published by the European Committee for Standardization (CEN). EN 926-1 was produced as a result o
7、f international discussions in which the United Kingdom took an active part. A British 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 conf
8、er immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 6 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in
9、 the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 08:52:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 926-1 May 1995 ICS 97.220.40 Descriptors: Sports, sports equipment, paragliders, qualificati
10、on, safety, tests, mechanical strength, testing conditions English version Paragliding equipment Paragliders Part 1: Requirements and test methods for structural strength Equipment pour le parapente Parapentes Partie 1: Prescriptions et mthodes dessai concernant la rsistance de la structure Ausrstun
11、g fr Gleitschirme Gleitschirme Teil 1: Anforderungen und Prfverfahren an die Baufestigkeit This European Standard was approved by CEN on 1995-05-02. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status o
12、f 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 exists in three official versions (English, French, German). A versi
13、on 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 bodies of Austria, Belgium, Denmark, Finland, France, Germany, Gree
14、ce, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1995 All rights of
15、reproduction and communication in any form and by any means reserved in all countries to CEN and its members. Ref. No. EN 926-1:1995 E Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 08:52:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 926-1:1995 BSI 01-2000 2 Foreword This European Standar
16、d has been prepared by the Technical Committee CEN/TC 136, Sports, playground and other recreational equipment, the secretariat of which is held by DIN. EN 926-1 deals with the structural strength test of a paraglider under static and dynamic loads. prEN 926-2 deals with the flight test for the qual
17、ification of a paraglider. 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 November 1995, and conflicting national standards shall be withdrawn at the latest by November 1995. According to the CEN
18、/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Fore
19、word2 0Introduction3 1Scope3 2Definition3 3Requirements3 4Test methods3 5Inspection5 6Test report5 Annex A (informative) Recommendations for the information to be supplied by the manufacturer with each paraglider6 Figure 1 Test rig for shock loading test4 Figure 2 Test rig for sustained loading test
20、5 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 08:52:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 926-1:1995 BSI 01-20003 0 Introduction EN 926-1 and prEN 926-2 are intended to provide a method of qualifying paragliders. The aim of these standards is to enhance safety, thus eliminating
21、 paragliders which display unacceptable behaviour in given situations on the basis of recognized tests set in these two standards. 1 Scope This European Standard is applicable to paragliders as defined in clause 2. This part of EN 926 specifies requirements and test methods for the resistance of a p
22、araglider to static and dynamic loads and sets the minimum strength threshold for its qualification. 2 Definition For the purposes of this standard, the following definition applies. paraglider ultralight glider with no primary rigid structure, for which take-off and landing are on foot, the pilot b
23、eing installed in a harness connected to the wing NOTEThere are two possible designs: single-seater and two-seater paragliders. 3 Requirements 3.1 Shock loading When tested according to 4.4 the wing shall not be damaged. 3.2 Sustained loading When tested according to 4.5 the wing shall not be damage
24、d. 4 Test methods 4.1 Apparatus 4.1.1 Tow vehicle. A tow vehicle ballasted and capable of providing a force in excess of 6 000 N to the paraglider wing, equipped with a device for the attachment of the paraglider and with the instrumentation required for measurement and readings of the different tes
25、t parameters; see Figure 1 and Figure 2. 4.1.2 Weak link, calibrated for instantaneous break at 6 000 N 600 N. 4.1.3 Cable, 60 m in length, capable of withstanding a force greater than that of the weak link. 4.1.4 Electronic sensor, equipped with an electronic strain gauge for measuring the force. 4
26、.1.5 Measurement circuit, with a graph clearly showing the load (N) against time (s). 4.1.6 Video recording equipment 4.2 Test specimen Select a test specimen that conforms to the manufacturing record for that model (see Annex A). 4.3 Test conditions Weather conditions: wind speed less than 5 m/s. 4
27、.4 Shock loading test 4.4.1 Principle The paraglider is subjected to an opening shock load and the wing is visually inspected for damage. 4.4.2 Procedure The test rig is shown in Figure 1. NOTENumbers given in brackets refer to the legend in Figure 1. Carry out the first shock loading test using a w
28、eak link to limit the loads to a maximum of 6 000 N. Place the paraglider (1) on the ground in the configuration for instant inflation. Connect the risers (2) to the weak link (3) and the latter to a cable 60 m long (4) whose other end is connected to one or more electronic sensors (5). Lay out the
29、cables on the ground in such a way that the distance between the rear axle of the tow vehicle and the weak link is between 8 m and 10 m and so that the test shock load can be applied almost instantaneously. Record the test on video. Increase the speed of the tow vehicle as rapidly as possible until
30、either: a) the weak link breaks; or b) the paraglider fails. 4.5 Sustained loading test 4.5.1 Principle The paraglider is towed until the load obtained corresponds to a mean load factor of eight times the maximum all-up flying weight recommended by the manufacturer. After completion of the loading t
31、est, the wing is visually inspected for damage. 4.5.2 Procedure The test rig is shown in Figure 2. Attach the risers of the paraglider to the electronic sensors 0,8 m apart on the tractor vehicle. A controller is positioned on the tow vehicle in order to operate the paraglider control lines to stabi
32、lize the wing. Record the test on video. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 08:52:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 926-1:1995 4 BSI 01-2000 Figure 1 Test rig for shock loading test Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 08:52:21 GMT+00:00 2006, Unc
33、ontrolled Copy, (c) BSI EN 926-1:1995 BSI 01-20005 Increase the speed of the vehicle as gradually as possible, enabling the controller to obtain satisfactory stabilization of the flight path of the paraglider, keeping the load factor less than three times the maximum permissible load. When the parag
34、lider has stabilized, continue to increase the speed until the load obtained corresponds to a mean load factor of eight times the maximum all-up flying weight recommended by the manufacturer, for a minimum duration of 5 s and with variation not exceeding 1g. 5 Inspection On completion of each test,
35、a check shall be made that the wing has not suffered any visual damage, e.g. incipient tears, rupture of suspension lines, deformation. 6 Test report The test report shall include at least the following (indications): a) name and address of the manufacturer; b) type and reference of the paraglider t
36、ested; c) date and place of the test; d) video of the tests; e) details of the tests, i.e. values of loads in newtons and load times in seconds; f) details of any damage after the test. Figure 2 Test rig for sustained loading test Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 08:52:21 GMT+0
37、0:00 2006, Uncontrolled Copy, (c) BSI EN 926-1:1995 6 BSI 01-2000 Annex A (informative) Recommendations for the information to be supplied by the manufacturer with each paraglider The manufacturing record supplied by the manufacturer should include the following information: A.1 Name and address of
38、manufacturer A.2 Designation of paraglider A.2.1 Year and month of manufacture of the model tested A.2.2 Serial number A.3 Plan with dimensions and tolerances A.3.1 Upper surface A.3.2 Lower surface A.3.3 Cell walls (ribs) A.3.4 Wing tips and stabilizers A.3.5 Rigging A.3.6 Method of assembly A.4 Te
39、chnical characteristics A.4.1 Maximum wing span A.4.2 Surface area calculated according to the following formula: MAX SPAN MEAN CHORD chord = maximum length of cell walls (ribs) A.4.3 The minimum and maximum all-up weights in flight, i.e. the weight of the whole equipment, comprising harness, pilot,
40、 helmet, clothing, boots, instruments, emergency parachute and ballast A.5 Description of materials All the materials used should be listed, with: a) name of the material; b) manufacturers name and references; c) where and how much is used in or on the paraglider; d) the characteristics and tests ca
41、rried out on this material by the supplier or manufacturer. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 08:52:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 08:52:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 926-1:1996 BSI
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