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



Reference CLC/TS 61643-12:2006
Title Low-voltage surge protective devices - Part 12: Surge protective devices connected to low-voltage power systems - Selection and application principles
Project Number 13651
Abstract/Scope Applies to surge protective devices (SPD's) used to protect, under specific conditions, electrical systems and equipment against various overvoltage and impulse curents (e.g. lightning, switching surges). Information is provided on equipment to be protected, system characteristics, insulation levels, overvoltages, methods of installation, location, co-ordination and failure modes of SPD's, as well as equipment failure consequences.


Current Stage code 6060
Current Stage code date 2006-08-11
Current Stage code deadline  
Deadline date for vote 2006-04-01


Order Voucher  


IEC Technical Body IEC/SC 37A
Reference Document IEC 61643-12:2002 (MOD)
ICS 29.240 - Power transmission and distribution networks
29.240.10 - Substations. Surge arresters
Keywords Surge; Protective device; LV; Power distribution system
Note Superseded by CLC/TS 61643-12:2009
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2006-08-11   export to doc file  EN
5099 2006-04-15 2006-06-21  
5060 2006-04-15 2006-04-15 export to doc file  EN
5020 2006-02-10 2006-04-14 export to doc file  EN
3090 2005-10-20 2006-04-01  
1090 2005-10-20 2006-04-01  
4092 2005-09-13    
4092 2000-10-03 2001-04-03  
1090 2000-10-03 2001-04-03  
4098 2000-02-22    
4020 2000-01-28 2000-06-30  
4020 2000-01-24 2000-06-30  

Implementation Dates

date of Ratification (DOR) (1) 2006-04-15
date of Availability (DAV) (2) 2006-08-11
date of Announcement (DOA) (3) 2006-11-15
date of Publication (DOP) (4) -
date of Withdrawal (DOW) (5) -


Superseded by CLC/TS 61643-12:2009
Normative reference (6)  

(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.