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



Reference EN 50540:2010
Title Conductors for overhead lines - Aluminium Conductors Steel Supported (ACSS)
Project Number 21773
Abstract/Scope This draft European Standard specifies the electrical and mechanical characteristics of ACSS conductors made of round or formed annealed aluminium wires and steel wires stranded in alternate directions, made of one or a combination of any of the following. 1.1 Outer/conductive layers Annealed Aluminium wire as per requirements of Clause 5. 1.2 Steel core a) Galvanized steel wire type ST6A according to EN 50189 and requirements of Clause 5; b) Zn95Al5 alloy coated steel wire with MM (mischmetal) as per EN 10244-2 and mechanical and mass of coating requirements as per Tables 2 and 3, in the following options: i Extra High Strength; ii Ultra High Strength. NOTE MM elements are mandatory. Coatings without MM can be used, if agreed between Supplier and Purchaser. Tests without MM must show the same behaviour than the MM coatings. c) Aluminium-clad steel wire 20,3 % conductivity in the following options: - as per EN 61232 with class designation 20 SA; - aluminium-clad steel wire Extra High Strength with designation 20 EHSA as per Table 4. d) Aluminium-clad steel wire 14 % conductivity, Extra High Strength with designation 14 EHSA as per Table 5.


Current Stage code 6060
Current Stage code date 2010-04-23
Current Stage code deadline 2011-04-01
Deadline date for vote 2008-12-31


Order Voucher  


IEC Technical Body  
Reference Document  
ICS 29.240.20 - Power transmission and distribution lines
Keywords Conductor; Overhead line; Aluminium; Steel Supported; ACSS
Note Related to BT/ES0023/NOT
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2010-04-23 2011-04-01 export to doc file  EN  FR  DE
6020 2010-04-21    
5060 2010-04-21 2010-04-23 export to doc file  EN
5099 2010-04-01 2010-08-01  
5061 2010-02-22 2010-04-01  
5060 2010-01-19 2010-02-19 export to doc file  EN
5020 2009-08-14 2010-01-15 export to doc file  EN
3090 2009-07-07 2009-08-07  
1560 2008-09-16 2008-09-30 export to doc file  EN
1520 2008-06-13 2008-09-12 export to doc file  EN
1099 2008-02-01 2008-07-09  

Implementation Dates

date of Ratification (DOR) (1) 2010-04-01
date of Availability (DAV) (2) 2010-04-23
date of Announcement (DOA) (3) 2010-10-01
date of Publication (DOP) (4) 2011-04-01
date of Withdrawal (DOW) (5) 2013-04-01


Superseded by  
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.