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



Reference EN 60671:2011
Title Nuclear power plants - Instrumentation and control systems important to safety - Surveillance testing
Project Number 22265
Abstract/Scope Lays down principles for testing I&C systems performing category A, B and C functions, per IEC 61226, during normal power operation and shutdown, so as to check the functional availability especially with regard to the detection of faults that could prevent the proper operation of the functions important to safety. Covers the possibility of testing at short intervals or continuous surveillance, as well as periodic testing at longer intervals. It also establishes basic rules for the design and application of the test equipment and its interface with the systems important to safety. The main change with respect to the previous edition includes an extension of the scope to cover all systems important to safety, and a requirement gradation for systems and equipment performing category A, B and C functions.


Current Stage code 6060
Current Stage code date 2011-08-12
Current Stage code deadline 2012-08-08
Deadline date for vote 2011-05-31


Order Voucher  


IEC Technical Body IEC/SC 45A
Reference Document IEC 60671:2007 (EQV)
ICS 27.120.20 - Nuclear power plants. Safety
Keywords Nuclear; Power plant; Instrumentation; Safety; Surveillance
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2011-08-12 2012-08-08 export to doc file  EN  FR  DE
5099 2011-08-08 2011-09-05  
5060 2011-07-04 2011-07-25 export to doc file  EN
5020 2011-05-06 2011-07-01 export to doc file  EN  FR  DE
4099 2011-04-07 2011-04-22  
1560 2010-05-18 2010-06-01 export to doc file  EN
1520 2010-02-12 2010-05-14  
1099 2010-02-01 2010-03-01  
1000 2009-11-04 2010-01-31  

Implementation Dates

date of Ratification (DOR) (1) 2011-08-08
date of Availability (DAV) (2) 2011-08-12
date of Announcement (DOA) (3) 2012-02-08
date of Publication (DOP) (4) 2012-08-08
date of Withdrawal (DOW) (5) 2014-08-08


Superseded by  
Normative reference (6) IAEA guide NS-G-1.3
EN 60880
EN 60987
EN 61226
IEC 61513
EN 62138

(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.