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



Reference EN 60027-2:2007
Title Letter symbols to be used in electrical technology - Part 2: Telecommunications and electronics
Project Number 20776
Abstract/Scope Defines rules for the use and writing of letter symbols for telecommunications and electronics.


Current Stage code 6060
Current Stage code date 2007-04-25
Current Stage code deadline 2008-04-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 25
Reference Document IEC 60027-2:2005 (EQV)
ICS 01.060 - Quantities and units
Keywords Telecommunication; Electronic equipment; Letter symbol
Note Partially superseded by EN 80000-13:2008 (Subclauses 3.8 and 3.9)
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2007-04-25 2008-04-01 export to doc file  EN  FR  DE
5099 2007-04-01 2007-08-01  
5061 2007-02-26 2007-04-01  
5060 2006-12-18 2007-01-08 export to doc file  EN
5020 2006-07-14 2006-12-15 export to doc file  EN
1090 2005-12-06 2006-06-06  

Implementation Dates

date of Ratification (DOR) (1) 2007-04-01
date of Availability (DAV) (2) 2007-04-25
date of Announcement (DOA) (3) 2007-10-01
date of Publication (DOP) (4) 2008-04-01
date of Withdrawal (DOW) (5) 2010-04-01


Supersedes HD 60027-2:2003
Superseded by EN 80000-13:2008
Normative reference (6) ISO 31-0:1992
ISO 31-11:1992
ISO/IEC 2382-16:1996
IEC 60027-1:1992
EN 60027-3:2007
IEC 60050-101:1998
IEC 60050-131:2002
IEC 60050-191:1990
IEC 60050-351:1998
IEC 60050-702:1992
IEC 60050-704:1993
IEC 60050-705:1995
IEC 60050-712:1992
IEC 60050-713:1998
IEC 60050-715:1996
IEC 60050-721:1991
IEC 60050-722:1992
IEC 60050-723:1997
IEC 60050-725:1994
IEC 60050-726:1982
IEC 60050-731:1991
EN 60122-1:2002
EN 60375:2003
IEC 60747-1:1983
IEC 60748-1:2002
EN 61703:2002
IEC/TR 61931:1998

(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.