BS EN 60865-1:2012 - Short-circuit currents. Calculation of effects. Definitions and calculation methods

BS EN 60865-1:2012

Short-circuit currents. Calculation of effects. Definitions and calculation methods

Status : Current   Published : April 2012



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.

Standard NumberBS EN 60865-1:2012
TitleShort-circuit currents. Calculation of effects. Definitions and calculation methods
Publication Date30 April 2012
Normative References(Required to achieve compliance to this standard)IEC 60909-0, IEC 60909, IEC 60949, IEC 61660-2, EN 61660-2, EN 60909, EN 60909-0, IEC 60986
Informative References(Provided for Information)IEC 61936-1
ReplacesBS EN 60865-1:1994, IEC 60865-1:1993
International RelationshipsEN 60838-2-2:2006,EN 60865-1:2012,IEC 60865-1:2011
Draft Superseded By08/30190022 DC
DescriptorsThermoelectricity, Electric current, Rigid conductors, Fault currents, Equations, Mathematical calculations, Flexible conductors, Electric conductors, Electromagnetism, Short-circuit currents
Title in FrenchCourants de court-circuit. Calcul des effets. Définitions et méthodes de calcul
Title in GermanKurzschlussströme. Berechnung der Wirkung. Begriffe und Berechnungsverfahren
ISBN978 0 580 64565 5
File Size2.109 MB

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