1、July 2017 English price group 8No 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 93.100!%hEnglish version EN 131465:2
2、012 + AC:2017,English translation of DIN EN 13146-5:2017-07Bahnanwendungen Oberbau Prfverfahren fr Schienenbefestigungssysteme Teil 5: Bestimmung des elektrischen Widerstands;Englische Fassung EN 131465:2012 + AC:2017,Englische bersetzung von DIN EN 13146-5:2017-07Applications ferroviaires Voie Mtho
3、des dessai pour les systmes de fixation Partie 5: Dtermination de la rsistance lectrique;Version anglaise EN 131465:2012 + AC:2017,Traduction anglaise de DIN EN 13146-5:2017-07SupersedesDIN EN 131465:201206www.beuth.deDocument comprises 12 pagesDTranslation by DIN-Sprachendienst.In case of doubt, th
4、e German-language original shall be considered authoritative.07.17 DIN EN 13146-5:2017-07 2 A comma is used as the decimal marker. National foreword This document (EN 13146-5:2012 + AC:2017) has been prepared by Technical Committee CEN/TC 256 “Railway applications” (Secretariat: DIN, Germany). The r
5、esponsible German body involved in its preparation was DIN-Normenausschuss Fahrweg und Schienenfahrzeuge (DIN Standards Committee Railway), Working Committee NA 087-00-01-04 UA “Fastening systems”. This standard is based on the English reference version. Amendments This standard differs from DIN EN
6、13146-5:2003-02 as follows: a) in the foreword, the standard series EN 13146 Railway applications Track Test methods for fastening systems has been completed; b) normative references have been updated; c) reference and alternative methods have been included; d) the conductivity of the water used in
7、the test has been limited; e) the conditioning of the test specimens has been amended; f) the correction factor for water conductivity has been deleted; g) the standard has been editorially revised. Based on EN 13146-5:2012/AC:2017, the following corrections have been made to DIN EN 13146-5:2012-06:
8、 a) a new subclause has been included: 5.6 “Water collection and re-cycling equipment”; b) the first paragraph of Clause 7 has been corrected; c) Key 4 of Figure 1 has been amended. Previous editions DIN EN 13146-5: 2003-02, 2012-06 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13146-5 April
9、2012 + AC May 2017 ICS 93.100 Supersedes EN 13146-5:2002 English Version Railway applications Track Test methods for fastening systems Part 5: Determination of electrical resistance Applications ferroviaires Voie Mthodes dessai pour les systmes de fixation Partie 5: Dtermination de la rsistance lect
10、rique Bahnanwendungen Oberbau Prfverfahren fr Schienenbefestigungssysteme Teil 5: Bestimmung des elektrischen Widerstands This European Standard was approved by CEN on 26 November 2011 and the Corigendum on 24 May 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
11、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 any CEN member. This Europ
12、ean 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 versions. CEN members are
13、 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, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Rom
14、ania, Serbia, 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: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any fo
15、rm and by any means reserved worldwide for CEN national Members. Ref. No. EN 13146-5:2012 + AC:2017 E EN 13146-5:2012 + AC:2017 (E) 2 Contents Page Foreword 3 1 Scope 5 2 Normative references 5 3 Terms and definitions, symbols and abbreviations . 5 3.1 Terms and definitions . 5 3.2 Symbols and abbre
16、viations . 5 4 Principle . 5 5 Apparatus . 5 5.1 Rail 5 5.2 Water . 6 5.3 Spray equipment . 6 5.4 Electricity supply . 6 5.5 Instruments . 6 5.6 Water collection and re-cycling equipment 6 6 Test specimens (reference method) 6 7 Procedure (reference method) 7 8 Test specimens Alternative method 9 9
17、Procedure Alternative method . 9 10 Calculations . 9 11 Test report . 9 Annex A (informative) Resistance/time plot 10 DIN EN 13146-5:2017-07 EN 13146-5:2012 + AC:2017 (E) 3 Foreword This document (EN 13146-5:2012) has been prepared by Technical Committee CEN/TC 256 “Railway applications “, the secre
18、tariat 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 October 2012, and conflicting national standards shall be withdrawn at the latest by October 2012. Attention is draw
19、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 13146-5:2002. This document has been prepared under a mandate given to CEN
20、by the European Commission and the European Free Trade Association. The main changes in this revision are as follows: a) reference and alternative methods are now included; b) the conductivity of the water used in the test is limited; c) conditioning of the test specimens; d) the correction factor f
21、or water conductivity is deleted. In consequence of these changes, the measured resistance may be significantly different from that obtained by the previous method. This European Standard is one of the series EN 13146 “Railway applications Track Test methods for fastening systems“ which consists of
22、the following parts: Part 1: Determination of longitudinal rail restraint; Part 2: Determination of torsional resistance; Part 3: Determination of attenuation of impact loads; Part 4: Effect of repeated loading; Part 5: Determination of electrical resistance; Part 6: Effect of severe environmental c
23、onditions; Part 7: Determination of clamping force; Part 8: In service testing; Part 9: Determination of stiffness. DIN EN 13146-5:2017-07 EN 13146-5:2012 + AC:2017 (E) 4 These support the requirements in the series EN 13481 “Railway applications Track Performance requirements for fastening systems“
24、. This document includes the corrigendum EN 13146-5:2012/AC:2017 which adds a new sub-clause 5.6 and corrects the first paragraph of Clause 7 and Key 4 to Figure 1. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to impleme
25、nt this European Standard: 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, Slovakia, Slovenia, Spain, Sweden, Switz
26、erland, Turkey and the United Kingdom. DIN EN 13146-5:2017-07 EN 13146-5:2012 + AC:2017 (E) 5 1 Scope This European Standard specifies a laboratory test procedure for determining the electrical resistance, in wet conditions, between the running rails provided by a fastening system fitted to a steel
27、or concrete sleeper, bearer or element of slab track. It is also applicable to embedded rail. This test procedure applies to a complete fastening assembly. It is relevant to signalling currents, not to traction currents. A reference procedure and an alternative procedure are included. 2 Normative re
28、ferences 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 document (including any amendments) applies
29、. EN 27888, Water quality Determination of electrical conductivity (ISO 7888) EN 13481-1:2012, Railway applications Track Performance requirements for fastening systems Part 1: Definitions 3 Terms and definitions, symbols and abbreviations 3.1 Terms and definitions For the purposes of this document,
30、 the terms and definitions given in EN 13481-1:2012 apply. 3.2 Symbols and abbreviations For the purposes of this document, the following symbols apply. Rmeasured resistance for each test, in ; R arithmetic mean of test results, in ; conductivity of water used, in mS/m. 4 Principle The electrical re
31、sistance between two short lengths of rail fastened to the support is measured whilst the whole support and fastenings are sprayed with water at a controlled rate. 5 Apparatus 5.1 Rail For surface mounted rail systems, two short lengths (approximately 0,5 m) of the section for which the fastening as
32、sembly under test is designed. For embedded rail systems the rail is included in the test specimen. The rail shall be unlaminated and have neither loose rust on the surface nor be polished on the foot. DIN EN 13146-5:2017-07 EN 13146-5:2012 + AC:2017 (E) 6 5.2 Water A supply of potable water supply
33、with a conductivity of (50 null 5) mS/m measured in accordance with EN 27888 at the temperature at the time of spraying and corrected to a temperature of 25oC. NOTE 1 Correction factors for temperature are given in EN 27888. NOTE 2 The conductivity of the water may be adjusted to the specified limit
34、s by the addition of sodium chloride or distilled water. 5.3 Spray equipment A frame which can be moved parallel to the rails, incorporating four spray nozzles as shown in Figure 1. The nozzles shall have a diameter 3,6 mm and a spray cone of (100 to 125)o. The equipment shall include a means of con
35、trolling and measuring the flow of water to each nozzle. 5.4 Electricity supply Alternating current supply of (30 null 3) V RMS and (50 null 15) Hz. 5.5 Instruments Instruments to measure the applied voltage and resultant current flow between the rails with an accuracy of 1 % which permit the calcul
36、ation of resistance over the range 1 null 102 to 1 null 106. The equipment shall have a capability to print out a record of calculated resistance against time. The calibration of the instruments shall be verified with equipment having certified traceability to European or International Standards usi
37、ng the International System of units (SI). null 5.6 Water collection and re-cycling equipment Water sprayed onto the sleeper and fastening assemblies may be collected and re-cycled through the test rig, provided that the conductivity and temperature are maintained within the limits set out in 5.2. I
38、f such a procedure is used it is important to ensure that the entire water circulation system is designed to prevent collection of stagnant water and that the system is flushed through with clean water regularly. Failure to do this can lead to the creation of conditions in which harmful bacteria (e.
39、g. Legionella) collect and breed in the test rig. NOTE Guidance on the control of Legionella in cold water systems is available at: https:/osha.europa.eu/en/tools-and-publications/publications/factsheets/100 null 6 Test specimens (reference method) Three steel or concrete sleepers or bearers (with t
40、wo rails only) or elements of slab track with cast-in fastening components or holes and rail seats as made without modification for this test. DIN EN 13146-5:2017-07 EN 13146-5:2012 + AC:2017 (E) 7 For embedded rail with mechanical fastening assemblies the length of the test specimen shall be equal
41、to the nominal sleeper spacing in EN 13481-1:2012, Table 1. For embedded rail with adhesive fastening systems the length of the test specimen shall be (500 to 750) mm. All test specimens shall include two running rails. Each specimen is tested individually. The test specimens are described as sleepe
42、rs in the test procedure. 7 Procedure (reference method) null The test shall be carried out under cover and protected from rain and draughts in a room which is ventilated and has an air temperature (15 to 30)oC. Fit the rails to one sleeper using all the fastening components as assembled in track. S
43、upport the sleeper, which shall be surface dry, on two electrically insulating blocks, not less than 50 mm thick, as shown in Figure 1. The use of wood blocks was recommended in earlier versions of this standard but wood in a wet environment may harbour harmful bacteria (e.g. Legionella) and therefo
44、re shall not be used in this application.null If the sleeper has not been used for this test before, carry out the spraying procedure and leave for no less than 24 h or until surface dry, whichever is longer, before performing the test. Set up the measuring instruments as shown in Figure 2 and conne
45、ct to the electrical supply. Move the spray equipment over the sleeper, anchor the equipment in position and spray with water at (10 to 20)oC at a rate of (7 null 1) l/min from each nozzle for 2 min. Record the voltage and current during spraying and for not less than 10 min after spraying has cease
46、d. Repeat the test twice more on the other two similar test specimens. If a specimen has been previously tested, allow no less than 120 h, or the time taken for the specimen to become surface dry, whichever is the longer, between tests. A typical resistance/time plot is shown in Figure A.1. DIN EN 1
47、3146-5:2017-07 EN 13146-5:2012 + AC:2017 (E) 8 Key 1 spray frame 2 spray nozzles as described in 5.3 3 test sleepers as described in Clause 6 4 nullblocks made from electrically insulating materialnull 5 plastics pads Figure 1 Test arrangement Figure 2 Measurement circuit DIN EN 13146-5:2017-07 EN 1
48、3146-5:2012 + AC:2017 (E) 9 8 Test specimens Alternative method One steel or concrete sleeper or bearer or embedded rail specimen in accordance with Clause 6. The test specimen is described as a sleeper in the test procedure. 9 Procedure Alternative method Follow the procedure in Clause 7. When the
49、test on the single sleeper is complete, leave the sleeper to dry for at least 120 h and then repeat the procedure. After the second test, leave the sleeper to dry for at least 120 h and then repeat the procedure. 10 Calculations For each test, find the minimum resistance Rfrom the resistance-time plot. The result of the test R is the arithmetic mean of the three values of Robtained. 11 Test re
