G - Physics – 01 – V
Patent
G - Physics
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V
G01V 9/00 (2006.01) G01V 3/02 (2006.01) H02G 1/10 (2006.01) H02G 9/02 (2006.01)
Patent
CA 2213641
The underground-laying depth of an electric power cable is obtained on the basis of temperature data of the electric power cable laid underground, ambient temperature data of a place where the electric power cable is laid underground, calorific power data of the electric power cable, thermal resistivity of soil where the electric power cable is laid underground, and radiation thermal resistivity of the surface of the electric power cable. The ambient temperature means the temperature of a place which is not influenced by the heat of the electric power cable.
La profondeur d'enfouissement d'un câble électrique souterrain est déterminée d'après les caractéristiques thermiques du câble ainsi enfoui, la température ambiante du site d'enfouissement dudit câble, les caractéristiques d'énergie calorifique du câble électrique, la résistivité thermique du sol où le câble électrique est enfoui et la résistivité thermique rayonnante de la surface du câble électrique. La température ambiante est la température d'un endroit qui ne subit pas l'influence thermique du câble électrique.
Hata Ryosuke
Nakura Yuji
Yamaguchi Masayoshi
Marks & Clerk
Sumitomo Electric Industries Ltd.
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