Abstract
The design cf overhead lines must consider both
static stresses <such as extreme temperatures,
ice, asy mietrical ice, wind, erection leads,
combined loadings, etc ... > and dynamic stresses
<such as conductor breakage, ice shedding,
galopping, short-circuit, wind gusts),
Generally, if static loads can be easily
evaluated, such is net the case for dynamic
overloads which occur only very occasionally.
The predetermination of such overloads with a
guaranteed accuracy <mainly through empirical
correlations> would enable the designer to accept
reduced factors of safety, and hence to red~ce the
overall cost of a line while maintaining its
reliability.
This report provides such a tool, which is also
suitable for the calculations of stresses under
static conditicns,even in complex
combinations,taking particularly into account the
flexibility cf the supports.
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