DIN EN 131-6-2015 Ladders - Part 6 Telescopic ladders German version EN 131-6 2015《梯子 第6部分 伸缩梯 德文版本EN 131-6-2015》.pdf

1、May 2015 Translation by DIN-Sprachendienst.English price group 12No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 97

2、.145!%Bf“2315867www.din.deDDIN EN 131-6Ladders Part 6: Telescopic ladders;English version EN 131-6:2015,English translation of DIN EN 131-6:2015-05Leitern Teil 6: Teleskopleitern;Englische Fassung EN 131-6:2015,Englische bersetzung von DIN EN 131-6:2015-05chelles Partie 6: chelles tlscopiques;Versio

3、n anglaise EN 131-6:2015,Traduction anglaise de DIN EN 131-6:2015-05www.beuth.deDocument comprises 24 pagesIn case of doubt, the German-language original shall be considered authoritative.04.15 DIN EN 131-6:2015-05 2 A comma is used as the decimal marker. National foreword This document (EN 131-6:20

4、15) has been prepared by Technical Committee CEN/TC 93 “Ladders” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the DIN-Normenausschuss Holzwirtschaft und Mbel (DIN Standards Committee Timber and Furniture), Working Committee NA 042-04-20 AA Spiegelaus-schus

5、s zu CEN/TC 93 Leitern. This standard includes safety requirements within the meaning of the Produktsicherheitsgesetz (ProdSG) (German Product Safety Act). Where this standard has been identified by the Ausschuss fr Produktsicherheit (German Committee for Product Safety) and reference to it has been

6、 published in the Gemeinsames Ministerialblatt (German Joint Ministerial Gazette) by the Bundesanstalt fr Arbeitsschutz und Arbeitsmedizin (BAuA) (German Federal Institute for Occupational Safety and Health), it is to be presumed that telescopic ladders which comply with this standard fulfil the rel

7、evant health and safety requirements. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 131-6 March 2015 ICS 97.145 English Version Ladders - Part 6: Telescopic ladders chelles - Partie 6: chelles tlscopiques Leitern - Teil 6: Teleskopleitern This European Standard was approved by CEN on 3 Januar

8、y 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtai

9、ned on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN

10、-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland,

11、 Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre:

12、 Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 131-6:2015 EEN 131-6:2015 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Functional dimensions

13、7 4.1 General dimensions 7 4.2 Specific dimensions 7 5 Requirements .7 5.1 General requirements 7 5.2 Distance between rungs/steps .7 5.3 Additional requirements for the top of leaning ladders .7 5.4 Locking of the rung/step sections .7 5.5 Design .8 6 Testing 8 6.1 General 8 6.2 Drop test .8 6.3 St

14、rength test of stiles 9 6.4 Bending test of the stiles 9 6.5 Lateral deflection test of the ladder 10 6.6 Bottom stile ends test 11 6.7 Rungs/steps strength test . 11 6.7.1 Rungs/steps strength test locked position . 11 6.7.2 Rungs/steps strength test unlocked position 12 6.7.3 Torsion test of rungs

15、/steps . 13 6.7.4 Pull out test of rung/step . 13 6.8 Test of opening restraints and hinges of standing ladders . 13 6.9 Test of locking mechanism 14 6.9.1 Cyclic test of locking mechanism . 14 6.9.2 Static test of locking mechanism 15 6.9.3 Cyclic test of hinge joints 15 6.9.4 Requirements 15 6.10

16、Feet pull test 16 6.11 Torsion on ladder length 16 6.12 Test methods for plastic ladders 17 6.13 Test methods for plastic rung/step brackets . 17 7 Marking and User Instruction 17 7.1 General . 17 7.2 Marking 17 7.3 User instruction 18 Annex A (normative) Test sequence 19 Annex B (informative) A-dev

17、iations 20 B.1 Deviations from the Netherlands 20 B.2 Deviations from Sweden 21 Bibliography . 22 DIN EN 131-6:2015-05 EN 131-6:2015 (E) 3 Foreword This document (EN 131-6:2015) has been prepared by Technical Committee CEN/TC 93 “Ladders”, the secretariat of which is held by DIN. This European Stand

18、ard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2015, and conflicting national standards shall be withdrawn at the latest by September 2015. Attention is drawn to the possibility that some of the elements

19、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. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. This European Standar

20、d is one of a series about ladders. The other standards of this series are listed in Clause 2 and in the Bibliography. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, B

21、ulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,

22、 Turkey and the United Kingdom. DIN EN 131-6:2015-05 EN 131-6:2015 (E) 4 1 Scope This European Standard specifies the general design features, requirements and test methods and defines terms for leaning and standing telescopic ladders. Ladders with extension elements are not covered by this part of

23、EN 131. This part of the standard is intended to be used in conjunction with EN 131-1:2007+A1:2011, EN 131-2:2010+A1:2012, EN 131-3:2007 and if applicable EN 131-4:2007. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispens

24、able for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 131-1:2007+A1:2011, Ladders - Part 1: Terms, types, functional sizes EN 131-2:2010+A1:2012, Ladders - Part 2: R

25、equirements, testing, marking EN 131-3:2007, Ladders - Part 3: User Instructions EN 131-4:2007, Ladders - Part 4: Single or multiple hinge-joint ladders 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 131-1 and the following apply. 3.1 telescopic ladd

26、er ladder consisting of three or more rung/step sections with telescopic stiles Note 1 to entry: Ladders with extension elements like in Figure 1 are not covered by this part of EN 131. DIN EN 131-6:2015-05 EN 131-6:2015 (E) 5 Figure 1 Extension elements not covered by this part of EN 131 3.2 hinge-

27、joint telescopic ladder ladder including one or more hinge-joint devices with at least one predetermined lockable position 3.3 rung/step section section of ladder that consists of one rung/step connected to two telescopic stiles 3.4 rung/step bracket part that attaches the rung/step to the stile 3.5

28、 rung/step section locking mechanism mechanism that locks a rung/step section 3.6 locking indicator mechanism or part that indicates that one rung/step section or part of one rung/step section is locked/unlocked DIN EN 131-6:2015-05 EN 131-6:2015 (E) 6 3.7 locking pin part that locks each rung/step

29、section and that is engaged when the locking mechanism is locked 3.8 top bar connection between the upper parts of the two stiles where the distance between the topmost connection and the upper end of the ladder is less than, or equal to, 15 mm Note 1 to entry: See Figure 2. Note 2 to entry: If the

30、distance between the end of the stiles and the upper connection of the two stiles do fulfill the requirement of l3, as defined in EN 131-1:2007+A1:2011, 3.37, it should be considered as a rung/step (see Figure 3). Dimensions in millimetres Figure 2 Top bar Figure 3 Rung/step 3.9 protection against s

31、queezing mechanism or part that minimizes the risk of squeezing when the ladder is shortened Note 1 to entry: For example brake system. 3.10 release function function which releases the locking mechanism 3.11 base section section starting from the lower end of the ladder DIN EN 131-6:2015-05 EN 131-

32、6:2015 (E) 7 3.12 ascendable part part of the ascending leg consisting only of fully extended rung/step sections 3.13 storage position position where none of the rung/step sections are extended 4 Functional dimensions 4.1 General dimensions Dimensions are given in EN 131-1:2007+A1:2011. 4.2 Specific

33、 dimensions The inner width b1shall be measured at the upper edge of the shortest rung. The outside width b2shall be measured at the outside of the contact points to the ground. l3shall be minimum 0,5 l5and maximum l5+ 15 mm measured in the middle line between the stiles. 5 Requirements 5.1 General

34、requirements The drawings in this part of EN 131 are examples only and products do not need to correspond. However, dimensions are binding. For other requirements EN 131-2:2010+A1:2012, Clause 4 requirements apply. 5.2 Distance between rungs/steps When the ladder is in use position the rungs/steps a

35、llowed to stand on shall always be equally spaced in accordance with EN 131-1:2007+A1:2011. In the position of use the construction shall not allow different distances between the rungs/steps with a tolerance of 2 mm in the ascendable part of the ladder and ensure that the rung/step sections that ar

36、e not extended shall be stacked on top of the ladder. It shall not be possible for the user to alter these distances without manipulation. 5.3 Additional requirements for the top of leaning ladders The top of the ladder has to be designed in a way that a 2-point area of contact between the top of th

37、e ladder and a vertical plane can be assured. 5.4 Locking of the rung/step sections The ladder has to be designed in way that all extended rung/step sections are locked when the ladder is in the using position. Every rung/step section shall have a locking mechanism for each stile. Each locking mecha

38、nism shall visibly indicate whether it is locked or unlocked. NOTE Visible indication can for example be a coloured area or a visible locking pin. DIN EN 131-6:2015-05 EN 131-6:2015 (E) 8 It shall be clear if the locking mechanisms are in locked position or not when visually examining the erected la

39、dder standing in front of the ladder holding on to it. 5.5 Design Screws and nuts shall be secured against loosening, for example by means of self-locking or mechanically locked safety mechanisms. It shall not be possible to separate rung/step sections without using tools. The design shall seek to m

40、inimize the existence of shearing and squeeze points and where they do exist to minimize the shearing and squeezing effects as far as practicable. NOTE 1 Shear or squeeze points exist if the distance between two accessible parts relative to each other is less than 25 mm and more than 7 mm in any pos

41、ition during movement (see EN 581-1). The unlocking and sliding in of the ladder shall be possible in a safe way. The ladder shall be designed in a way that squeezing between the rungs/steps is avoided. NOTE 2 Protection against squeezing can be assured by a permanent braking function of the ladder

42、or by a special stop or distance device. If a permanent breaking function is used a typical time for collapsing a section of 300 mm is 1,5 s if the movement is uniform. If only a distance device is used for protection against squeezing between the rung/steps this device shall be located at least 80

43、mm from the manufacturers recommended position of the users hands during collapse of the ladder. 6 Testing 6.1 General For all tests, unless otherwise stated in the particular test, the following tolerances apply: 1 mm for longitudinal measurements; 5 mm for the measurement of the distance between t

44、he supports and the overhanging length; 1 for the measurement of angles; 1 % for static forces and torque. Tests shall be performed at a temperature between 15 C and 25 C. Where the ascendable side cannot be determined by the construction of the product, or where it is a multiple part combination la

45、dder, the ladder shall be tested twice regarding 6.3 and 6.4. Conduct strength test and bending test on one side then rotate the ladder 180 about the longitudinal axis and repeat 6.3 and 6.4. Inspect the ladder before testing to confirm condition and operation of all parts by fully extend the ladder

46、. Perform drop test according to 6.2 as preconditioning for each ladder, with the exception of test block D (bottom stile end test) and F (feet pull test), see Annex A. 6.2 Drop test Place the extended ladder in vertical position. Let the ladder fall in the direction of use from vertical to horizont

47、al position by its own weight. Repeat the test with ladder rotated 180 about the longitudinal axis. DIN EN 131-6:2015-05 EN 131-6:2015 (E) 9 Bring the ladder back to storage position. 6.3 Strength test of stiles Extend the ladder to its maximum length. The test shall be carried out on the complete l

48、adder. In the case of combination ladders the test shall be carried out on the complete extended ladder. Sectional ladders shall be tested at full length with all permitted pieces. The test shall be carried out without supporting legs if not permanently fixed to the ladder. The ladder shall be placed horizontally on supports situated 200 mm from each end of the ladder. If it is not possible to use the 200 mm distance it is allowed to reduce the distance equally at the top and the bottom. The supports shall be cylindrical