International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference CLC/TR 50507:2007
Title Railway applications - Interference limits of existing track circuits used on European railways
Project Number 16679
Abstract/Scope This Technical Report has been written to define the interference limits of existing track circuits used on European railways. The purpose of this Technical Report is to provide an overview, a reference and a source of information for other specifications and specifications that are presently in preparation. As required by the CENELEC rules, it will be updated as needed and will be finally replaced by a future specification or standard. According to CENELEC rules, the existing national specifications are not required to be replaced by this Technical Report. They will remain in use as the basis for approval of vehicles in the respective countries. Where available, the national specifications are referenced in Annex A of this Technical Report. The two main parts of this Technical Report are: 1) the List of European track circuit equipment; 2) the National Annex. The contents of these two parts have been provided by railway infrastructure representatives. Not all EU countries have provided information and in some cases the information may be incomplete. In 4.5, the track circuits are classified into preferred and non-preferred types ) with regard to their future use on interoperable lines. This definition provides an indication which types of track circuits are preferred for new signalling projects. In Annex A the interference limits and test specifications are defined within a template prepared by CENELEC, which is intended to ensure a large degree of common content and to facilitate comparisons between national specifications. The content of Annex A is based on existing national specifications. This Technical Report will remain informative until it is replaced by a specification. It may, however, be used as a basis for defining requirements, for example in improved national specifications. If the content is used in the TSI, the TSI document shall clearly define the consequences of the requirements. The vehicles have only to be made compatible with the track circuits used on the lines where they run, as defined in EN 50238. Normally an approval certificate will be restricted to these lines or countries.


Current Stage code 6060
Current Stage code date 2007-05-09
Current Stage code deadline  
Deadline date for vote 2006-12-07


Order Voucher  


IEC Technical Body IEC/TC 9
Reference Document  
ICS 45.060.01 - Railway rolling stock in general
Keywords Railway; Rolling stock; Track circuit; Compatibility
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2007-05-09   export to doc file  EN
5099 2007-01-16 2007-04-16  
5060 2007-01-02 2007-01-16 export to doc file  EN
5020 2006-09-22 2006-12-22 export to doc file  EN
3090 2006-09-01 2006-12-01  
3060 2006-09-01 2006-12-07  
3060 2006-01-31 2006-08-31  
3020 2005-01-31 2005-05-07  
1000 2004-12-07 2005-06-07  

Implementation Dates

date of Ratification (DOR) (1) 2007-01-16
date of Availability (DAV) (2) 2007-05-09
date of Announcement (DOA) (3) -
date of Publication (DOP) (4) -
date of Withdrawal (DOW) (5) -


Superseded by  
Normative reference (6) EN 50238:2003

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.