PD IEC/TR 60865-2:2015 - Short-circuit currents. Calculation of effects. Examples of calculation

PD IEC/TR 60865-2:2015

Short-circuit currents. Calculation of effects. Examples of calculation

Status : Current   Published : May 2015



IEC TR 60865-2:2015(E) shows the application of procedures for the calculation of mechanical and thermal effects due to short circuits as presented in IEC 60865-1. Thus, this technical report is an addition to IEC 60865-1. It does not, however, change the basis for standardized procedures given in that publication. This second edition cancels and replaces the first edition published in 1994 and constitutes a technical revision. It includes the following changes. The determinations for auto reclosure together with rigid conductors have been revised. The configurations in cases of flexible conductor arrangements have been changed. 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 be calculated now. 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 (is part of IEC 60909-0:2001 now). The standard IEC 60865-1:2011 has been reorganized and some of the symbols have been changed to follow the conceptual characteristic of international standards.

Standard NumberPD IEC/TR 60865-2:2015
TitleShort-circuit currents. Calculation of effects. Examples of calculation
Publication Date31 May 2015
Normative References(Required to achieve compliance to this standard)IEC 60909-0:2001, IEC 60865-1:2011
Informative References(Provided for Information)IEC 61936-1, EN 1990
ReplacesPD 6575-2:1995, IEC 60865-2:1994
International RelationshipsIEC TR 60865-2:2015
DescriptorsElectrical faults, Fault currents, Electric current, Symbols, Formulae (mathematics), Mathematical calculations, Equations, Short-circuit currents
ISBN978 0 580 84957 2
File Size2.066 MB

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