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Patent Searching and Data


Title:
METHOD OF MONITORING TEMPERATURE OF COMPRESSION JOINT TUBE
Document Type and Number:
Japanese Patent JP2001167860
Kind Code:
A
Abstract:

To provide a method of monitoring temperature of a compression joint tube using a shape memory alloy that can detect abnormal overheating of the compression joint tube and prevent corona noise, as variation by shape memory effect is generated in a direction that is not protruded from the compression jointing tube.

A shape memory alloy 5 is wound on a compression jointing tube 3a of an electric transmission line in coil shape. Before and after the compression jointing tube 3a is overheated, abnormal overheating of the compression jointing tube 3a is detected visually by monitoring the change in the coil pitch by using a telescope from a distance.


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Inventors:
NAGANO KOJI
Application Number:
JP1999000352675
Publication Date:
June 22, 2001
Filing Date:
December 13, 1999
Export Citation:
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Assignee:
HITACHI CABLE
International Classes:
H01R43/00; (IPC1-7): H01R43/00