HEAT INSULATION TUBE FOR SUPERCONDUCTIVE CABLE AND SUPERCONDUCTIVE CABLE

• Main Author: MINAMINO TADAHIKO
• Format: Patent
• Language: English; Japanese
• Published: 04.08.2016
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

PROBLEM TO BE SOLVED: To provide a heat insulation tube for superconductive cable capable of identifying a damaged part when local damage is generated on a heat insulation tube caused by an accident such earth fault on a super conductive cable itself, and the super conductive cable.SOLUTION: There is provided a heat insulation tube for superconductive cable having an inner tube housing both of a cable core having a superconductive conductor layer and a coolant for cooling the cable core, an outer tube forming a vacuum layer on an outer side of the inner tube and an optical fiber arranged in a longer direction of the inner tube in the vacuum layer. Further it has a heat insulation material layer arranged between the inner layer and the outer layer. The heat insulation material layer has a multilayer structure by laminating a plurality of heat insulation materials and the optical fiber is arranged between layers of the heat insulation material layer.SELECTED DRAWING: Figure 1 【課題】超電導ケーブル自体に地絡などの事故が生じ、その事故に伴って断熱管に局所的な破損が生じた場合、その破損個所を特定できる超電導ケーブル用断熱管、及び超電導ケーブルを提供する。【解決手段】超電導導体層を有するケーブルコア及び前記ケーブルコアを冷却する冷媒の双方を収納する内管と、前記内管の外側に真空層を形成する外管と、前記真空層内で前記内管の長手方向に配置される光ファイバと、を備える超電導ケーブル用断熱管。さらに、前記内管と前記外管との間に配置される断熱材層を備えることが挙げられる。前記断熱材層は、複数の断熱材を積層した多層構造であり、前記光ファイバは、前記断熱材層の層間に配置されることが挙げられる。【選択図】図１