Enhanced fretting fatigue resistance of conductors for high voltage overhead lines. MIP: Pfisterer Sefag AG

• Unité de recherche: INNOSUISSE
• Numéro de projet: 17144.1 PFEN-IW
• Titre du projet anglais: Enhanced fretting fatigue resistance of conductors for high voltage overhead lines. MIP: Pfisterer Sefag AG

Description succincte (Allemand)

Enhanced fretting fatigue resistance of conductors for high voltage overhead lines

Description succincte (Anglais)

Enhanced fretting fatigue resistance of conductors for high voltage overhead lines. MIP: Pfisterer Sefag AG

Résumé des résultats (Abstract) (Allemand)

There is a need to improve the fretting fatigue resistance of conductors for high voltage overhead lines in order to increase their current-carrying capacity and lifetime. Here we develop a procedure for this purpose, applicable to new or existing power lines at the critical location, i.e. the suspension clamp. To this end, a procedure based on the materials creep response is proposed to relax and homogenize the macroscopic stress state of the wires within the conductor, improving performance of the Sefag clamps.

Résumé des résultats (Abstract) (Anglais)