Abstract
Installation of inter-phase spacer can effectively protects against line fault caused by conductor galloping, non-synchronous swing and sleet jump etc large amplitude vibration, but sag of the conductor is changed if inter-phase spacer is installed. And installation of initial inter-phase spacer will cause change of inter-phase distance, which cause difficulty of successive installation. The empirical equation can’t accurately analyze change of the inter-phase distance caused during installation of the inter-phase spacer. In this paper, accurate conductor installation inter-phase spacer analysis model is established with non-linear finite element method. Change of the conductor sag after installation of the inter-phase spacer is calculated, and influence on inter-phase distance caused by different installation sequence is analyzed. The research result provides effective analysis method for length control of actual line installed inter-phase spacers, and ensures manufacturing and successful installation of the inter-phase spacer.
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