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This paper presents a new method for calculating sag and tension in overhead transmission lines located in mountainous terrain. The traditional "equivalent span" concept can produce inaccurate results for such terrain. The proposed method analyzes the change in state of each individual span, accounting for the effects of suspension and tension insulators as well as running-out blocks. It is based on inelastic catenary theory and develops a change-of-state equation relating the unstretched length of the cond

Author

Sangyt Karna

Language

EN