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



Reference EN 61377-2:2002
Title Railway applications - Rolling stock - Combined testing - Part 2: Chopper-fed direct current traction motors and their control
Project Number 14063
Abstract/Scope Applies to the combinations of motor(s), chopper and their control, and its object is to specify a)the performance characteristics of electric drives consisting of a chopper, direct current motors, and the related control system b)methods of verifying these performance characteristics by tests. In traction drives, a combined system with chopper and direct current motor(s) without any control between the mechanical output and the chopper is not usual. It is not, therefore, considered in this standard. EN 60349-1 applies to chopper-fed direct current motors, EN 61287-1 to power electronic convertors, and EN 60571 to electronic equipments. As a consequence, EN 60349-1 describes the tests to demonstrate the compliance of the motor to its specification, while EN 61287-1 does the same for the chopper.


Current Stage code 6060
Current Stage code date 2002-09-25
Current Stage code deadline 2003-06-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 9
Reference Document IEC 61377-2:2002 (EQV)
ICS 45.060 - Railway rolling stock
Keywords Railway applications; Rolling stock; Motor; Chopper-fed traction
Note EN following parallel vote
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2002-09-25 2003-06-01 export to doc file  EN
5099 2002-09-01 2002-11-01  
5061 2002-06-24 2002-09-01  
5020 2002-03-15 2002-05-17  
4099 2002-03-12 2002-03-15  
4020 2000-09-08 2001-02-15  
3099 2000-09-04 2000-09-08  

Implementation Dates

date of Ratification (DOR) (1) 2002-09-01
date of Availability (DAV) (2) 2002-09-25
date of Announcement (DOA) (3) 2002-12-01
date of Publication (DOP) (4) 2003-06-01
date of Withdrawal (DOW) (5) 2005-09-01


Superseded by  
Normative reference (6) IEC 60050-411:1996
IEC 60050-551:1998
IEC 60050-811:1991
EN 60349-1:2000
IEC/TR 60349-3:1995
IEC 60571:1998
IEC 60850:2000
IEC 61287-1:1995
IEC/TS 61287-2:2001

(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.