Abstract
The knowledge of the maximum compressive forces acting on bundle cond\J.ctor spacers
under fault conditions is essential to the rational design of their structural strength,
The results of a wide investigation carried out both theoretically and experimentally are
shown in the report; relationships are stated which permit the computation of the max-
1
imum forces in terms of all the involved line parameters and for any given fault current
and duration,
To reach results of general validity, the behaviour in time of the compressive
force under given fault current has been explored; this proved to be of essential importance
for understanding the dynamic phenomenon and for expressing it in correct mathematical
form. It has been found that fault current and fault time must be individually con-
Aidered for the determination of the maximum forces on the spacers and cannot be cumuWlfated
into one single parameter, as has been proposed, .
The mathematical model proposed for the investigation of the dynamic actio~ has
shown a very satisfactory agreei:nent with the experimental tests,
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