H - Electricity – 01 – B
Patent
H - Electricity
01
B
H01B 17/32 (2006.01)
Patent
CA 2649223
An elongated member has an outer sleeve-like rigid insulator shell (1) surrounding a high voltage conductor (5) extending in the longitudinal direction of the shell and a gap (10) inside the shell next to the internal wall of the shell at least partially surrounding said conductor and filled with a medium (11) of a material of with electrically insulating properties. Said medium is formed by an electrically insulating material containing hollow spaces at least partially filled with gas, and the material is adapted to expand upon a temperature rise thereof by reversibly compressing said hollow spaces and reducing the volume thereof.
L'invention concerne un élément allongé à coque (1) isolante rigide externe en forme de manchon (1) entourant un conducteur haute tension(5) s'étendant dans la direction longitudinale de la coque et un espace (10) à l'intérieur de la coque à proximité de la paroi interne de la coque, entourant au moins partiellement ledit conducteur et rempli d'un milieu (11) d'un matériau doté de propriétés électrique d'isolation. Ledit milieu comporte un matériau électriquement isolant contenant des espaces creux au moins partiellement remplis de gaz ; le matériau est adapté pour s'étendre lors d'une augmentation de température de celui-ci en comprimant de façon réversible lesdits espaces creux et en réduisant le volume de ceux-ci.
Chalikia Gerd A.
Hedlund Roger
Sjoeberg Peter
Abb Technology Ltd
Marks & Clerk
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