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



Reference EN 50423-1:2005
Title Overhead electrical lines exceeding AC 1 kV up to and including AC 45 kV - Part 1: General requirements - Common specifications
Project Number 14245
Abstract/Scope This standard applies to bare and covered conductor overhead lines and overhead insulated cable systems with nominal voltage exceeding AC 1 kV up to and including AC 45 kV and with rated frequencies below 100 Hz. In general the requirements in EN 50341-1 apply. This standard specifies additional requirements and simplifications that apply only for this voltage range. In connection with EN 50341-1, this standard specifies the general requirements that shall be met for the design and construction of new overhead lines to ensure that the line is suitable for its purpose with regard to safety of persons, maintenance, operation and environmental considerations. This standard does not apply to: – overhead electric lines inside closed electrical areas as defined in HD 637 S1; – catenary systems of electrified railways unless explicitly required by another standard.


Current Stage code 6060
Current Stage code date 2005-01-12
Current Stage code deadline 2005-10-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 11
Reference Document  
ICS 29.240.20 - Power transmission and distribution lines
Keywords Electical line; Overhead
Note To be read in conjunction with EN 50341-1 * Superseded by EN 50341-1:2012
Special National Condition(s)  


Categories - Aspects
Product Life Cycle
1 Others Manufacturing, Use B2B, DfE


Deadline Date
6060 2005-01-12 2005-10-01 export to doc file  EN  FR  DE
5099 2004-10-01 2005-04-01  
5061 2004-08-24 2004-10-01  
5020 2004-01-09 2004-07-09  
3090 2003-11-26 2003-12-31  
2020 2003-02-05 2003-09-30  
1000 2000-12-05 2001-06-05  

Implementation Dates

date of Ratification (DOR) (1) 2004-10-01
date of Availability (DAV) (2) 2005-01-12
date of Announcement (DOA) (3) 2005-04-01
date of Publication (DOP) (4) 2005-10-01
date of Withdrawal (DOW) (5) 2007-10-01


Superseded by EN 50341-1:2012
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.