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



Reference EN 62340:2010
Title Nuclear power plants - Instrumentation and control systems important to safety - Requirements for coping with Common Cause Failure (CCF)
Project Number 22259
Abstract/Scope Gives requirements related to the avoidance of CCF of I&C systems that perform category A functions; additionally requires the implementation of independent I&C systems to overcome CCF, while the likelihood of CCF is reduced by strictly applying the overall safety principles of IEC SC 45A (notably IEC 61226, IEC 61513, IEC 60880 and IEC 60709); gives an overview of the complete scope of requirements relevant to CCF.


Current Stage code 6060
Current Stage code date 2010-05-14
Current Stage code deadline 2011-05-01
Deadline date for vote 2010-12-03


Order Voucher  


IEC Technical Body IEC/SC 45A
Reference Document IEC 62340:2007 (EQV)
ICS 27.120.20 - Nuclear power plants. Safety
Keywords Nuclear; Power plant; Instrumentation; Safety; Common Cause Failure (CCF)
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2010-05-14 2011-05-01 export to doc file  EN  FR  DE
5099 2010-05-01 2010-09-01  
5061 2010-03-26 2010-05-01  
5060 2010-02-15 2010-03-15 export to doc file  EN
5020 2009-12-11 2010-02-12 export to doc file  EN
1599 2009-12-01 2010-01-01  
1561 2009-10-28 2009-12-01  
1560 2009-07-28 2009-08-10 export to doc file  EN
1520 2009-04-24 2009-07-24 export to doc file  EN
1099 2009-04-01 2009-05-01  
1000 2008-12-03 2009-04-01  

Implementation Dates

date of Ratification (DOR) (1) 2010-05-01
date of Availability (DAV) (2) 2010-05-14
date of Announcement (DOA) (3) 2010-11-01
date of Publication (DOP) (4) 2011-05-01
date of Withdrawal (DOW) (5) 2013-05-01


Superseded by  
Normative reference (6)
IAEA SG-D11:1986
IAEA guide NS-G-1.3:2002
EN 60671:2011
EN 60709:2010
IEC 60780:1998
EN 60880:2009
IEC 60980:1989
EN 61000 series
IEC 61226:2005
IEC 61513:2001

(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.