1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12561-7:2011Railway applications TankwagonsPart 7: Platforms and laddersBS EN 12561-7:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation o
2、f EN 12561-7:2011.It supersedes BS EN 12561-7:2004 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee RAE/1/-/9, Railway Applications - Wagons (Tank/Freight).A list of organizations represented on this committee can beobtained on request to its secretary.T
3、his publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 72813 6ICS 45.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published unde
4、r the authority of theStandards Policy and Strategy Committee on 31 July 2011.Amendments issued since publicationDate Text affectedBS EN 12561-7:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12561-7 June 2011 ICS 45.060.20 Supersedes EN 12561-7:2004English Version Railway applications - T
5、ank wagons - Part 7: Platforms and ladders Applications ferrovaires - Wagons citernes - Partie 7: Plate-formes et chelles Bahnanwendungen - Kesselwagen - Teil 7: Arbeitsbhnen und Leitern This European Standard was approved by CEN on 3 June 2011. CEN members are bound to comply with the CEN/CENELEC I
6、nternal 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 application to the CEN-CENELEC Management Centre or to
7、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 Management Centre has the same status as the official
8、 versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovaki
9、a, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide fo
10、r CEN national Members. Ref. No. EN 12561-7:2011: EBS EN 12561-7:2011EN 12561-7:2011 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Ladders .44.1 General 44.2 Main dimensions 64.3 Design values .64.4 Marking .65 Platforms 95.1 General 95.2 Design values 10
11、6 Walkways . 106.1 General . 106.2 Main dimensions . 106.3 Design values 107 Characteristics of the grating 107.1 Resistance to friction . 107.2 Grating structure. 118 Fixing . 11Bibliography . 12Figures Figure 1 Terms 5Figure 2 Examples of rung cross sections 5Figure 3 Main dimensions of end ladder
12、s .7Figure 4 Main dimensions of lateral ladders .8Figure 5 Clearance above and behind rung 8Figure 6 Location of protective device 9BS EN 12561-7:2011EN 12561-7:2011 (E) 3 Foreword This document (EN 12561-7:2011) has been prepared by Technical Committee CEN/TC 256 “Railway applications”, the secreta
13、riat 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 December 2011, and conflicting national standards shall be withdrawn at the latest by December 2011. Attention is draw
14、n 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. This document supersedes EN 12561-7:2004. This European Standard Railway applications Tank wagons consi
15、sts of the following parts: Part 1: Identification plates for tank wagons for the carriage of dangerous goods; Part 2: Bottom emptying devices for liquid products including vapour return; Part 3: Bottom filling and emptying devices for gases liquefied under pressure; Part 4: Devices for top filling
16、and emptying of liquid products; Part 5: Devices for vapour return while filling or emptying of liquid products; Part 6: Manholes; Part 7: Platforms and ladders; Part 8: Heating connections. The changes made during this revision are editorial because of the change of the title of part 1 and the nece
17、ssary updates of references. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Gree
18、ce, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 12561-7:2011EN 12561-7:2011 (E) 4 1 Scope This European Standard applies to ladders, platforms and
19、walkways on tank wagons fitted with top devices. It does not apply to crossing gangways nor to steps in so far as they are covered by UIC leaflets. This European Standard defines the important dimensions for manufacturers and operators of such tank wagons and takes into consideration the relevant an
20、d applicable construction and safety guidelines. This European Standard applies to new tank wagons built after the 1st January 2010. In consideration of the smaller loading gauge within the UK, this European Standard does not apply to wagons operating exclusively therein. 2 Normative references The
21、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 referenced document (including any amendments) applies. EN 795, Protection against falls from a height Anchor
22、 devices Requirements and testing EN 14564,Tanks for transport of dangerous goods Terminology EN ISO 6346:1995, Freight containers Coding, identification and marking (ISO 6346:1995) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 14564 and the followi
23、ng apply. 3.1 platform level floor at the top of the tank for inspection, maintenance and operational purposes 3.2 walkway structure supporting grating to provide access between ladders and platforms 3.3 protective device device to deflect operating personnel from protruding parts of a moving tank w
24、agon in accordance with UIC 535-2 4 Ladders 4.1 General Where tank wagons are fitted with ladders, they shall either be fitted with one fixed ladder located at the end or with a fixed ladder on each side of the tank wagon. NOTE 1 The end ladder is usually fitted at the crossing gangway. Ladders shal
25、l be fitted with 2 lateral handrails. BS EN 12561-7:2011EN 12561-7:2011 (E) 5 NOTE 2 For traffic of continental tank wagons running in Great Britain, the kinematic gauge for Great Britain rules defined in the Technical Specification for Interoperability for freight wagons (TSI) also apply and to avo
26、id conflict between these rules, local arrangement for handrail should be allowed to stay in the gauge. The pitch of the ladder as shown in Figure 1 shall be between 75 and 90. Where the pitch is less than 75 steps shall be used in place of rungs. The depth of the steps shall be at least 80 mm. Key
27、1 Pitch 2 Handrails 3 String 4 Rung Figure 1 Terms The rungs and the steps shall be welded to the strings and shall be slip-resistant. Rung slip resistance can, for example, be achieved by using square or flat bars with a cross section as shown in Figure 2. Figure 2 Examples of rung cross sections B
28、S EN 12561-7:2011EN 12561-7:2011 (E) 6 If they are from square or rectangular section, they shall not have sharp edges. Steps shall have a grating according to the requirements of Clause 7. 4.2 Main dimensions The main dimensions of ladders shall be as shown in Figure 3 and Figure 4. All the rungs s
29、hall be equally spaced. The sides of square steel rungs shall be between 20 mm to 30 mm. Different shaped rungs of equivalent strength are permitted provided they are slip resistant (e.g. rectangular steel rungs with a cross section of 40 mm 8 mm). The clearance above and behind each rung shall be a
30、s shown in Figure 5. The handrail shall be made from circular cross section tubes or bars of at least 20 mm outside diameter. The ladder handrail shall be connected to the toe plates of the walkways or platforms. The clearance around the handrail shall be at least 100 mm. Where lateral ladders protr
31、ude more than 250 mm from the chassis of the tank wagon, a protective device shall be fitted at a height of between 1 200 mm to 1 400 mm above the rail (see Figure 6). The lateral ladders shall not infringe the loading gauge. 4.3 Design values Ladders shall be designed to withstand a static load of
32、2,0 kN in the centre of any rung. The maximum allowable elastic deformation under this load shall not exceed 1/200 of the width. 4.4 Marking A warning sign for overhead electrical danger shall be located near to each ladder in accordance with EN ISO 6346:1995, Annex C or Technical Specification for
33、Interoperability for Freight Wagons. BS EN 12561-7:2011EN 12561-7:2011 (E) 7 Dimensions in millimetres Key 1 Top of crossing gangway Figure 3 Main dimensions of end ladders BS EN 12561-7:2011EN 12561-7:2011 (E) 8 Dimensions in millimetres Key 1 Top of rail Figure 4 Main dimensions of lateral ladders
34、 Dimensions in millimetres Key 1 Tank Figure 5 Clearance above and behind rung BS EN 12561-7:2011EN 12561-7:2011 (E) 9 Key 1 Protective device Figure 6 Location of protective device 5 Platforms 5.1 General Platforms shall be built in accordance with the following requirements: to be at least around
35、the manhole, protective covers and the area around the nozzles; to be flat and horizontal; to have a free width of at least 300 mm; to have sufficient clearance around manlid swing bolts to allow easy operation; to be surrounded by a toe plate of 20 mm minimum height, except where a ladder or a walk
36、way is attached; to be fitted with a fixed point in accordance with EN 795 to which a safety line can be attached; to have a grating according to the requirements of Clause 7. The platform, including the toe plates shall not infringe the loading gauge. The width of the platform and the height of the
37、 toe plates may need to be reduced for domestic traffic in Great Britain (see Technical Specification for Interoperability for Freight Wagons). BS EN 12561-7:2011EN 12561-7:2011 (E) 10 5.2 Design values The platform shall be designed to withstand a load of 3 kN uniformly distributed over an area of
38、600 mm 300 mm. The deflection under this load shall not exceed 10 mm or 1/200 of the span, whichever is the smaller. 6 Walkways 6.1 General Walkways shall be built in accordance with the following requirements: to be flat and may have a maximum longitudinal slope of 5; to be surrounded by a toe plat
39、e of minimum 20 mm height, except where a ladder or a platform is attached; to be fitted with a safety rail with a minimum clearance of 100 mm around it (see Figures 3 and 4); to have a grating according to the requirements of Clause 7. It is recommended to have walkways at the same level as the pla
40、tform. 6.2 Main dimensions The width of the walkways shall not be less than 500 mm and shall not infringe the loading gauge. The width of the walkways, the height of the toe plates and the clearance around the safety rail may need to be reduced for domestic traffic in Great Britain (see Technical Sp
41、ecification for Interoperability for Freight Wagons). 6.3 Design values The walkway shall be designed to withstand a load of 3 kN uniformly distributed over an area of 600 mm 300 mm. The deflection under this load shall not exceed 10 mm or 1/200 of the span, whichever is the smaller. 7 Characteristi
42、cs of the grating 7.1 Resistance to friction The average value of the friction coefficient measured in three directions (lengthwise, breadthwise and diagonally) shall reach the following minimum values: a) in dry condition 0,65; b) in wet condition (water) 0,65; c) in oiled condition 0,30. Friction
43、coefficient values shall be ascertained by means of a 100 mm 100 mm movable plate, on which a rubber pad with 80 I.R.H.D. hardness shall be glued; this plate shall be loaded to 750 N. For the measurements carried out with water or oil, the grating shall be fully immersed. BS EN 12561-7:2011EN 12561-
44、7:2011 (E) 11 7.2 Grating structure To ensure that the gratings are sufficiently well adapted to winter conditions, a ratio of at least 50 % of void area to total area shall be observed. Only apertures with a minimum area of 400 mm shall be taken into account to determine this ratio. The void area i
45、s the free space afforded, in the vertical direction, by the grating apertures. 8 Fixing Where ladders, platforms and walkways are fixed to the shell of the tank wagon, doubler plates shall be used. The fixings shall be properly secured to discourage theft and minimise the risk of working loose. The
46、 attachment of the ladder to the vehicle shall not introduce unacceptable stresses during all conditions of operation. BS EN 12561-7:2011EN 12561-7:2011 (E) 12 Bibliography 1 ISO 48, Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD) 2 ISO 1496-3, S
47、eries 1 freight containers Specification and testing Part 3: Tank containers for liquids, gases and pressurized dry bulk 3 RID, Regulations concerning the International Carriage of Dangerous Goods by Rail1)implementing Commission Directives 2003/28/EC and 2003/29/EC. 4 TSI Rolling Stock Freight Wago
48、ns 5 UIC 535-2, Standardisation and positioning on wagons of steps, end platforms, gangways, handrails, tow hooks, automatic coupler (AC), automatic draw-on coupling and brake valve controls on the UIC member RUs and OSJD member Rus 2)1) Commonly known as RID. 2) May be purchased from: Railway Techn
49、ical Publications (ETF), 16 rue Jean Rey, F-75015 Paris. This page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other standards-related publications, information and services. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.British Standards Institution (BSI)raising standards worldwideBSI Group
