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



Reference EN 60034-3:2008
Title Rotating electrical machines - Part 3: Specific requirements for synchronous generators driven by steam turbines or combustion gas turbines
Project Number 20703
Abstract/Scope Applies to three-phase synchronous generators, having rated outputs of 10 MVA and above driven by steam turbines or combustion gas turbines. Provides common requirements as well as specific requirements for air, hydrogen or liquid cooled synchronous generators and supplements the basic requirements given in IEC 60034-1. Gives also the precautions to be taken when using hydrogen cooled generators. The scope of this new edition has been limited with respect to the previous edition.


Current Stage code 6060
Current Stage code date 2008-07-11
Current Stage code deadline 2009-03-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 2
Reference Document IEC 60034-3:2007 (EQV)
ICS 29.160 - Rotating machinery
Keywords Machine; Rotating; Generator; Synchronous; Steam turbine
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2008-07-11 2009-03-01 export to doc file  EN  FR  DE
5099 2008-06-01 2008-08-01  
5061 2008-04-28 2008-06-01  
5060 2007-10-23 2007-11-05 export to doc file  EN
5020 2007-08-17 2007-10-19  
3090 2007-08-14 2007-08-17  
5060 2007-02-09 2007-02-28 export to doc file  EN
5020 2006-06-02 2006-11-03  
1090 2006-05-30 2006-06-02  

Implementation Dates

date of Ratification (DOR) (1) 2008-06-01
date of Availability (DAV) (2) 2008-07-11
date of Announcement (DOA) (3) 2008-09-01
date of Publication (DOP) (4) 2009-03-01
date of Withdrawal (DOW) (5) 2011-06-01


Supersedes EN 60034-3:2005
Superseded by  
Normative reference (6) EN 60034-1:2004
EN 60034-4:1995
EN 60045-1:1993
EN 60079-0:2009

(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.