SIST EN 16729-1:2016
(Main)Railway applications - NDT on rails in track - Part 1: Requirements for ultrasonic inspection and evaluation principles
Railway applications - NDT on rails in track - Part 1: Requirements for ultrasonic inspection and evaluation principles
This document applies to testing of rails installed in track for detecting internal rail defects. The document applies to measuring equipment fitted to dedicated test vehicles or trolleys. This standard does not define the requirements for vehicle acceptance. This document does not deal with production testing of rails in a production plant. The document specifies the requirements for measuring principles and systems in order to produce comparable test results in respect of location, type and size of rail defects. This standard is not aiming to give any guidelines for managing the results of ultrasonic rail testing.
Bahnanwendungen - ZfP an Schienen im Gleis - Teil 1: Anforderungen für Ultraschall-Untersuchungen und Bewertungsgrundlagen
Diese Europäische Norm gilt für die Prüfung von in Gleisen eingebauten Schienen auf innere Fehler.
Der vorliegende Teil dieser Europäischen Norm gilt für die an speziell dafür vorgesehenen Prüffahrzeugen oder -rollwagen befestigte Prüfausrüstung. Diese Norm definiert nicht die Anforderungen an die Fahrzeugabnahme. Die vorliegende Norm behandelt nicht die Zfp-Prüfung von Schienen bei der Herstellung in einer Fertigungsanlage.
Diese Norm legt die Anforderungen an die Prüfgrundsätze und -systeme fest, um vergleichbare Ergebnisse in Bezug auf Lage, Art und Größe der Schienenfehler zu erhalten. Die vorliegende Norm zielt nicht darauf ab, Beurteilungsmaßstäbe für den Umgang mit den Ergebnissen der Ultraschallprüfung von Schienen bereitzustellen.
Applications ferroviaires - Infrastructure - Essais non destructifs sur les rails de voie - Partie 1: Exigences pour les principes d'évaluation et d'inspection par ultrasons
La présente Norme Européenne s'applique aux essais sur des rails en voie dans le but d’y détecter des discontinuités internes.
Cette partie de la présente Norme s'applique aux équipements d’essais utilisés sur les véhicules dédiés ou sur les dispositifs propulsés manuellement. La présente Norme ne définit pas les exigences pour l'homologation des véhicules. Cette partie de la norme ne s’applique pas aux essais par ultrasons des rails en usine.
La norme spécifie les exigences pour les principes et systèmes d'essai afin d’obtenir des résultats comparables en tenant compte de l'emplacement, du type et de la taille des discontinuités dans les rails. La présente Norme n'a pas pour objectif de donner des directives pour la gestion des résultats des tests ultrasons.
Cette norme s’applique uniquement aux rails dont les profils répondent aux exigences de la norme EN 13674-1
Železniške naprave - NDT na progi - 1. del: Zahteve za ultrazvočni pregled in merila za ovrednotenje
Ta dokument se uporablja za preskušanje tračnic, nameščenih na progi, da se ugotovijo notranje okvare tračnic. Dokument se uporablja za merilno opremo, ki je nameščena na namenskih vozilih ali vozičkih za preskušanje. Ta standard ne določa zahtev za prevzem vozila. Ta dokument ne zajema proizvodnega preskušanja tračnic v proizvodnem obratu. Ta dokument določa zahteve za merilne principe in sisteme, da se zagotovijo primerljivi rezultati preskusa v zvezi z lokacijo, vrsto in velikostjo okvar tračnic. Namen tega standarda ni podajanje smernic za upravljanje rezultatov ultrazvočnega preskusa tračnic.
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Bahnanwendungen - ZfP an Schienen im Gleis - Teil 1: Anforderungen für Ultraschall-Untersuchungen und BewertungsgrundlagenApplications ferroviaires - Infrastructure - Essais non destructifs sur les rails de voie - Partie 1: Exigences pour les principes d'évaluation et d'inspection par ultrasonsRailway applications - NDT on rails in track - Part 1: Requirements for ultrasonic inspection and evaluation principles93.100Gradnja železnicConstruction of railwaysICS:Ta slovenski standard je istoveten z:EN 16729-1:2016SIST EN 16729-1:2016en01-julij-2016SIST EN 16729-1:2016SLOVENSKI
STANDARD
SIST EN 16729-1:2016
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16729-1
May
t r s x ICS
{ uä s r r English Version
Railway applications æ Infrastructure æ Nonædestructive testing on rails in track æ Part
sã Requirements for ultrasonic inspection and evaluation principles Applications ferroviaires æ Infrastructure æ Essais non destructifs sur les rails de voie æ Partie
sã Exigences pour les principes d 5évaluation et d 5inspection par ultrasons
Bahnanwendungen æ Infrastruktur æ Zerstörungsfreie Prüfung an Schienen im Gleis æ Teil
sã Anforderungen an Ultraschallprüfungen und Bewertungsgrundlagen This European Standard was approved by CEN on
s t March
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x y t {æ sã t r s x ESIST EN 16729-1:2016
EN 16729-1:2016 (E) 2 Contents Page European foreword . 3 Introduction . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 5 4 Basics . 6 4.1 General . 6 4.2 Principle of ultrasonic testing in track . 7 4.3 Ultrasonic testing speed and detection of discontinuities . 7 4.4 Simulation of internal reflectors in reference rails . 7 5 Detection of reference reflectors . 10 6 Control of positioning accuracy . 13 Annex A (normative)
Simulated reflectors in reference rails . 14 Annex B (informative)
Simulated reflectors in reference rails . 33 Annex C (informative)
Ultrasonic test areas in rails tested with test vehicles or manually-propelled devices . 37 Annex ZA (informative)
Relationship between this European standard and the Essential Requirements of EU Directive 2008/57/EC . 39 Bibliography . 40
SIST EN 16729-1:2016
EN 16729-1:2016 (E) 3 European foreword This document (EN 16729-1:2016) has been prepared by Technical Committee CEN/TC 256 “Railway applications”, the secretariat 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 November 2016, and conflicting national standards shall be withdrawn at the latest by November 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN 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, and supports essential requirements of EU Directive 2008/57/EC. For relationship with EU Directive 2008/57/EC, see informative Annex ZA, which is an integral part of this document. This series of European Standards EN 16729, Railway applications — Infrastructure — Non-destructive testing on rails in track, consists of: — Part 1: Requirements for ultrasonic inspection and evaluation principles; — Part 2: Eddy current testing of rails in track [planned]; — Part 3: Requirements for identifying internal and surface rail defects [planned]; — Part 4: Qualification of personnel for non-destructive testing on rails [planned]. 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, 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, Turkey and the United Kingdom. SIST EN 16729-1:2016
EN 16729-1:2016 (E) 4 Introduction This European Standard represents the actual state of the art of automated ultrasonic testing of rails in track applied by European railway companies. SIST EN 16729-1:2016
EN 16729-1:2016 (E) 5 1 Scope This European Standard applies to testing of rails installed in track for detecting internal discontinuities. This part applies to testing equipment fitted to dedicated test vehicles or manually-propelled devices. This European Standard does not define the requirements for vehicle acceptance. This part of the standard does not apply to ultrasonic testing of rails in a production plant. The European Standard specifies the requirements for testing principles and systems in order to produce comparable results with regard to location, type and size of discontinuities in rails. This European Standard is not aiming to give any guidelines for managing the result of ultrasonic rail testing. This European Standard applies only to rail profiles meeting the requirements of EN 13674-1. 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 document (including any amendments) applies. EN 1330-4, Non-destructive testing - Terminology - Part 4: Terms used in ultrasonic testing EN 13674-1, Railway applications - Track - Rail - Part 1: Vignole railway rails 46 kg/m and above 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1330-4 and the following apply. 3.1 parts of the rail components that constitute the rail itself as shown in Figure 1 SIST EN 16729-1:2016
EN 16729-1:2016 (E) 6
Key 1 field side 2 gauge corner side 3 rail head 4 rail web 5 rail foot
running surface
gauge corner area
rail head side area
rail head fillet radius area
rail web area
rail foot fillet radius area
rail foot area Figure 1 — Parts of the rail 3.2 simulated reflector artificial feature designed to represent a real defect of a known size, orientation and position 3.3 functional reflector artificial feature designed to dynamically test an ultrasonic system at normal operation speed 4 Basics 4.1 General In order to verify the performance of the automated ultrasonic systems for rail testing there shall be defined reference reflectors in a test track. These reference reflectors shall be recorded and reported at the normal operational speed of the test vehicle/system. SIST EN 16729-1:2016
EN 16729-1:2016 (E) 7 The reference rail in the test track shall be constructed from new rail to provide the correct head profile and running surface condition. Rails with corrosion on the running surface shall be cleaned to allow the transmission of ultrasound prior to any testing, for example using a powered steel wire brush. A signal shown on the display of an ultrasonic instrument or system as a result of received ultrasonic pulse is called an indication. Evidence obtained by non-destructive testing. In test systems according to this standard ultrasound at a frequency range of 2 MHz to 5 MHz is used. A flat-bottomed hole (FBH) shall be machined using a twist drill at the appropriate diameter followed by a slot drill hole of the same diameter to the required depth to generate the flat end of the hole. Accuracy in diameter and depth shall be within 0,1 mm. Accuracy in angle shall be within 0,1°. A side drilled hole (SDH) shall be machined using a twist drill at the appropriate diameter. Accuracy in diameter shall be within 0,1 mm. Accuracy in angle shall be within 0,1°. An electrical discharge machined (EDM) notch shall be machined to the desired shape and orientation with an accuracy of 0,1 mm. Accuracy in angle shall be within 0,1°. Due to wear of the rail, dimension might vary. If the rail is used for distance and sensitivity setting of Ultrasonic Testing (UT) inspection devices this needs to be taken into account. 4.2 Principle of ultrasonic testing in track Ultrasonic waves transmitted into the rail will be reflected from the surfaces of the rail body. Fractures and other discontinuities within the rail, as well as the boundary of the rail will act as reflecting surfaces. By receiving, recording and interpreting the returned ultrasonic signals, it is possible to detect discontinuities within a rail installed in track before they present an unacceptable risk to the integrity and strength of the rail. Annex C gives examples of test areas in rails tested with test vehicles or manually propelled devices. 4.3 Ultrasonic testing speed and detection of discontinuities Ultrasonic beams have a width which is determined by the size of the transducer and the frequency. All reflectors interact with the ultrasonic beam. The beam sweeps across the reflector when the vehicle and / or manually-propelled device travels along the track. Ultrasound will be reflected and detected by the transducer. All ultrasonic systems use a threshold level in a gate and the system will record a response when the reflection is above the threshold level. By controlling the gain in the ultrasonic system and the gate threshold level the number of responses for a given size of reflector can be defined. A reflector can be sized by setting the system parameters so that a known number of responses are received from a known sized reference reflector. The relationship of the number of responses and the size of the reference reflector is known. This applies to all the reflectors in Annex A. The maximum testing speed depends upon the rail profile (longitudinal and transverse), reflector size to be detected, the beam width, sampling frequency and the number of responses required for an indication to be recorded. 4.4 Simulation of internal reflectors in reference rails Reference rails incorporating sets of reference reflectors selected from Annex A shall be created. In addition, reference rails incorporating sets of reference reflectors selected from Annex B may be created. They shall be installed in the left and right rails of a section of track if test vehicles are used. If only trolleys or manually-propelled devices are used the reference rails may be installed out-of-track. The length of the reference rails is not defined by this standard. When in track carrying traffic, the distance between the simulated reflectors and functional reflectors should be assessed by the Infrastructure Manager with consideration to the structural integrity of the rail. Reference reflectors shall be orientated to check probes scanning in both directions. SIST EN 16729-1:2016
EN 16729-1:2016 (E) 8 To prevent the influence of water and dirt on the ultrasonic responses, reference holes and notches shall be plugged with a synthetic compound. Where the reference rails carry traffic the infrastructure manager shall carry out a risk assessment to determine if reinforcement of the reference reflectors is necessary (fishplates or similar) and determine the maintenance regime of the reference rails. When several values are given for a certain quantity in Table 1, they are all mandatory. If a range is given for a quantity the user may chose a value within this range. For example reflector No. 01 consists of three holes in a rail. All holes have a diameter of 6 mm. The distance from the running surface to the centre of the hole is 7 mm for the first hole and 10 mm and 20 mm for the second and third hole respectively. This leads to three holes in a rail for reflector No. 01. No. 02 consists of four holes in a rail. Two holes for the forward direction and two holes for the backward direction. The distance from the running surface (see Figure A.2) can be chosen within a range of 10 mm to 20 mm. The holes per direction have a diameter of 5 mm and 10 mm respectively. This leads to four holes in a rail for reflector No. 02. Table 1 — Artificial reflectors in reference rails (normative references) No. Figure, shown in Annex A Type S/Fa Des
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.