Abstract
High short-circuit currents induce electromagnetic
forces between subconductors of bundled conductors in 2.1 Recurrent Method2)
substations, which are large enough that the conductors
clash together. During this phenomenon significant
stresses appear in the phase conductors and
bundle spacers. This report briefly reviews some
theoretical studies which have been carried out to
develop methods to predict approximately the stresses
under such conditions and describes the results of a
comparative parameter study which illustrates the
sensitivity of the stresses to suspension bus design
factors such as short-circuit current, conductor
size, bundle spacing and subspan length.
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