BS EN 131-7-2013 Ladders Mobile ladders with platform《梯子 带有平台的可移动梯》.pdf

1、BSI Standards PublicationBS EN 131-7:2013LaddersPart 7: Mobile ladders with platformBS EN 131-7:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 131-7:2013.The UK participation in its preparation was entrusted to TechnicalCommittee B/512, Ladders.A list of o

2、rganizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 20

3、13ISBN 978 0 580 76348 9ICS 97.145Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2013.Amendments issued since publicationDate Text affectedBS EN 131-7:2

4、013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 131-7 July 2013 ICS 97.145 English Version Ladders - Part 7: Mobile ladders with platform chelles - Partie 7: chelles mobiles avec plate-forme Leitern - Teil 7: Mobile Podestleitern This European Standard was approved by CEN on 15 May 2013. CEN

5、 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 obtained on appl

6、ication 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-CENELEC Ma

7、nagement 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, Italy, Lat

8、via, 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 Management Centre: Avenue Marnix 17, B-10

9、00 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 131-7:2013: EBS EN 131-7:2013EN 131-7:2013 (E) 2 Contents Page Foreword 3 1 Scope 3 2 Normative references 3 3 Terms and definitions .3 4 Requirements .6 4.1 General

10、6 4.2 Surface finishes .6 4.3 Materials .6 4.4 Stabiliser .7 4.5 Ballast .7 5 Dimensional requirements 7 5.1 Ascending legs 7 5.2 Supporting legs 8 5.3 Platform and toe board .8 5.4 Working area 8 5.5 Wheels and castors .9 5.6 Prevention of falls: Guardrails, Middle rails .9 5.7 Handrails 10 6 Testi

11、ng . 11 6.1 General . 11 6.2 Torsion test of steps, rungs, wide rungs . 11 6.3 Bending test for steps, rungs, wide rungs . 11 6.4 Platform and complete product test . 12 6.5 Protection bending test 14 6.6 Side handrail testing 14 6.7 Stability test . 14 6.8 Stiffness test . 16 6.9 Test for products

12、equipped with spring wheels 17 6.10 Kick-up test of the platform . 18 6.11 Test of opening restraint devices . 18 6.12 Test of hooks . 18 6.13 Bottom stile end test 18 6.14 Feet pull test 18 6.15 Test method for plastic ladders 18 6.16 Marking durability . 18 7 Marking, User and safety instruction .

13、 19 7.1 Marking 19 7.2 User Instruction 19 Bibliography . 20 BS EN 131-7:2013EN 131-7:2013 (E) 3 Foreword This document (EN 131-7:2013) has been prepared by Technical Committee CEN/TC 93 “Ladders”, the secretariat of which is held by DIN. This European Standard shall be given the status of a nationa

14、l standard, either by publication of an identical text or by endorsement, at the latest by January 2014, and conflicting national standards shall be withdrawn at the latest by January 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

15、rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This European Standard 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 n

16、ational standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

17、Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. 1 Scope This European Standard defines terms and specifies the general design characteristics of mobile ladders with platform. It applies to mo

18、bile ladders with a working platform, with a maximum area of 1 m2, and a maximum platform height of 5 m, to be used only by one person at the time. The maximum load is 150 kg which includes a maximum combined load of the user and any tools, equipment and materials It does not apply to portable ladde

19、rs according to EN 131-1, to portable ladders according to EN 131-4, to portable ladders for fire service use according to EN 1147, to loft ladders according to EN 14975, to step stools according to EN 14183, to Stairs, stepladders and guard-rails according to EN ISO 14122-3 and to insulating ladder

20、s according to EN 50528. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced docu

21、ment (including any amendments) applies. EN 131-2, Ladders Part 2: Requirements, testing, marking EN 131-3, Ladders - Part 3: User Instructions 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. BS EN 131-7:2013EN 131-7:2013 (E) 4 Table 1 Terms and

22、definitions Dimensions in millimetres No Term Definition Figure 3.1 ascending leg leg of a ladder with climbing supports Figure 1 3.2 supporting leg leg of a ladder without climbing supports 3.3 stile lateral part of a ladder which supports the rungs or steps as well as cross struts of supporting le

23、gs 3.4 preventions from falls 3.4.1 guard rail device to hold and protect from falls, installed on the platform of mobile platform ladders 3.4.2 middle rail element of the guard rail, placed between the top rail and the platform 3.4.3 gate at the ascending leg rigid or flexible device, parallel to t

24、he platform, to hold and to protect from falls 3.5 platform topmost standing surface which is different from a step Figure 2 3.6 toe board side protection fixed at the platform or the guard rail 3.7 handrail device for mobile ladders parallel to the ascending leg, which allows a secure grip during t

25、he ascending/descending 3.8 wheel device to facilitate the movement of the mobile platform ladder Note 1 to entry: Wheels can be: used only use for transportation; or used for transportation and as load bearing element; fitted with brakes. 3.9 stabiliser device to increase the stability of the mobil

26、e platform ladder BS EN 131-7:2013EN 131-7:2013 (E) 5 3.10 ballast permanent/fixed load applied to the mobile platform ladder used to increase its resistance to overturning 3.11 angle of inclination of the ascending leg angle between the floor and the imaginary line joining the upper edges of the si

27、des of the front steps Figure 3 3.12 distance between the bottom end and the lowest rung/wide rung/ step l4distance from the lower end of the ladder to the upper edge of the lowest rung/wide rung/step, measured in the middle line between the stiles 3.13 distance between rungs/wide rungs/steps l5dist

28、ance between the rungs/wide rungs/steps and between the top rung/wide rung/step and the platform measured in the middle line between the stiles at the upper edges 3.14 climbing height h vertical distance between the ground and the top of the platform measured vertically when all feet are in contact

29、with the ground 3.15 inner width of ascending leg b1usable distance between the inner sides of the stiles measured at the level of the platform 3.16 Rung (g) climbing support with a standing surface from front to back of less than 50 mm and at least 20 mm Figure 4 3.17 wide rung (g) climbing support

30、 with a standing surface from front to back equal to or greater than 50 mm and less than 80 mm Figure 5 3.18 Step (g) climbing support with a standing surface from front to back equal to or greater than 80 mm BS EN 131-7:2013EN 131-7:2013 (E) 6 Figure 6 3.19 distance between the bottom end and the l

31、owest rung/ wide rung/ step h1vertical distance between the floor and the top of the first rung/wide rung/step Figure 7 3.20 distance between rungs/ wide rungs/ steps h2vertical distance between the rungs/wide rungs/steps and between the top rung/wide rung/step and the platform measured in the middl

32、e line between the stiles at the upper edges 3.21 clearance e clearance between two rungs of consecutive ascending legs 4 Requirements 4.1 General A mobile platform ladder shall be designed and manufactured to prevent accidental slips of product and/or user. The marking shall be legible and durable.

33、 The durability of the marking shall be verified. Wide rungs/steps and platforms shall be designed to be horizontal when the product is used on a flat floor. Wide rungs, rungs, steps and platforms made of metal or plastics shall have a textured surface on the working face to reduce slipping. The con

34、tact surface of the coverings shall adhere firmly to the rungs or steps. 4.2 Surface finishes This requirement shall be according EN 131-2. The coating of wooden parts shall be transparent and permeable to water vapour. This does not apply to platform components manufactured from plywood materials.

35、4.3 Materials 4.3.1 General The requirements on materials shall be according to EN 131-2 apply unless otherwise stated. 4.3.2 Wood Wood used for the platform should be of durable quality and be suitable for both indoor and outdoor use. The coating shall be transparent and permeable to water vapour.

36、BS EN 131-7:2013EN 131-7:2013 (E) 7 Coatings applied to platform components manufactured from plywood materials shall be permeable to water but may be opaque. The surface of the platform shall be slip resistant. 4.4 Stabiliser If the design makes stabilisers necessary to fulfil the stability test re

37、quirements, they shall be supplied with the ladder. It shall be clear that the product is meant to be used with stabilisers. Specific safety instruction shall be visible on the ladder and may be repeated on the stabilisers. 4.5 Ballast If the design makes ballasts necessary to fulfil the stability t

38、est requirements, they shall be supplied with the ladder. It shall be clear that the product is meant to be used with a ballast. Specific safety instruction shall be visible on the ladder and may be repeated on the ballast. 5 Dimensional requirements 5.1 Ascending legs 5.1.1 Ascending legs with angl

39、e 60 75 The dimensional requirements for ascending legs angle 60 75are shown in Table 2. Table 2 Dimensional requirements for ascending legs with angle 60 75 Dimensions in millimetres b1h g l4l5min. 400 20 0,5 l5230 max. 5 000 l5+ 15 300 This product is ascended and descended facing the ladder. Hand

40、rails can be added to this product. 5.1.2 Ascending legs with angle 45 0,5 m2This test shall be carried out in addition to the previous test described in 6.4.1.1. If the platform area is more than 0,5 m2, put 2 loads of each 2 600 N on two plates of max. 100 mm 100 mm distributed equally in the midd

41、le of the platform (see Figure 13). Requirement: no disassembly, cracking or rupture shall occur. NOTE This load is applied for the foreseeable misuse of the platform by two people. Figure 13 Platform test for platform area 0,5 m26.4.2 Complete product test The product is placed in the use position.

42、 The stability devices/ ballast shall be fitted in position. Place the test load F = 3 500 Nin the middle of the ascending leg uniformly distributed on the surface of the rung/wide rung/step for a period of 1 min (see Figure 14). Requirement: no disassembly, cracking or rupture shall occur. BS EN 13

43、1-7:2013EN 131-7:2013 (E) 14 Figure 14 Complete product test 6.5 Protection bending test 6.5.1 Tests on guardrails (principal guardrails and top handrail of the gate) To eliminate the free movements apply a preload of 20 N horizontally for a period of 1 min. The position of the handrail under the pr

44、eload is the starting point for the measurement of bending. Apply the test load of 300 N horizontally for one minute distributed over a length of 100 mm and a depth equal to the principal guardrail in the most unfavourable position and direction, and then measure the deflection. Requirement: maximum

45、 deflection under load 35 mm. Apply the test load of 1 250N vertically for one minute distributed over a length of 100 mm and a width equal to the principal guardrail in the most unfavourable position, and then pull the load off. Requirement: no disassembly, cracking or rupture shall occur. 6.5.2 Te

46、st on middle rail (intermediate guardrail and the middle rail of the gate) Apply the test load of 1 250 N vertically for 1 min, than put the load off. Requirement: no disassembly, cracking or rupture shall occur. 6.6 Side handrail testing This test shall be according to EN 131-2. 6.7 Stability test

47、6.7.1 Platform 0,5 m2Place the mobile platform ladder in position of use, complete with any ballast and/or stabilisers, with any brake device activated on an even and solid ground. The castors shall be placed in the most unfavourable position. Apply a test load of 750 N distributed centred on a rigi

48、d steel plate of max. 200 mm 200 mm located on the centre of the platform. BS EN 131-7:2013EN 131-7:2013 (E) 15 Apply a suitable system to prevent slippage of the ladder towards the direction of the horizontal force. This system shall not change the resistance to overturning of the mobile platform l

49、adder and shall have a height above the ground not greater than 10 mm. Apply gradually to the level of the platform a horizontal pulling force F = 300 N to the edge of the platform in the most unfavourable position and direction (see Figures 15 and 16). For platform heights greater than 2,5 m, the pulling force is increased to F = 450 N when the product is intended for outdoor use or where it might be affected by wind. The test is passed if the mobile platform ladder does not overturn. Key F load Figure 15 Stability test