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



Reference EN 60865-1:2012
Title Short-circuit currents - Calculation of effects - Part 1: Definitions and calculation methods
Project Number 22838
Abstract/Scope IEC 60865-1:2011 is applicable to the mechanical and thermal effects of short-circuit currents. It contains procedures for the calculation of: the electromagnetic effect on rigid conductors and flexible conductors, the thermal effect on bare conductors. For cables and insulated conductors, reference is made, for example, to IEC 60949 and IEC 60986. For the electromagnetic and thermal effects in d.c. auxiliary installations of power plants and substations reference is made to IEC 61660-2. Only a.c. systems are dealt with in this standard. This third edition cancels and replaces the second edition published in 1993 and constitutes a technical revision. The main changes with respect to the previous edition are: - The determinations for automatic reclosure together with rigid conductors have been revised. - The influence of mid-span droppers to the span has been included. For vertical cable-connection the displacement and the tensile force onto the lower fixing point may now be calculated. Additional recommendations for foundation loads due to tensile forces have been added. The subclause for determination of the thermal equivalent short-circuits current has been deleted (it is now part of IEC 60909-0). The regulations for thermal effects of electrical equipment have been deleted. The standard has been reorganized and some of the symbols have been changed to follow the conceptual characteristic of international standards.


Current Stage code 6060
Current Stage code date 2012-03-23
Current Stage code deadline 2012-08-28
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 73
Reference Document IEC 60865-1:2011 (EQV)
ICS 17.220.01 - Electricity. Magnetism. General aspects
29.240.20 - Power transmission and distribution lines
Keywords Short-circuit; Current; Calculation; Effect
Note Supersedes EN 60865-1:1993 * 2011-10-28: Publication editing allocated to
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2012-03-23 2012-08-28 export to doc file  EN  FR  DE
5099 2011-11-28 2011-12-26  
5060 2010-10-01 2010-10-18 export to doc file  EN
5020 2010-02-05 2010-07-09  
1090 2010-02-02 2010-02-05  

Implementation Dates

date of Ratification (DOR) (1) 2011-11-28
date of Availability (DAV) (2) 2012-03-23
date of Announcement (DOA) (3) 2012-02-28
date of Publication (DOP) (4) 2012-09-23
date of Withdrawal (DOW) (5) 2014-11-28


Supersedes EN 60865-1:1993
Superseded by  
Normative reference (6) EN 60909-0
IEC 60909 series
IEC 60949
IEC 60986:2000
EN 61660-2

(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.