抄録
The article reviews recent technology trend in power cables used for transmission in oversea. Especially, this article deals with the power transmission cable system feature and technology including typical main construction projects of underground and submarine power cables in America, Europe, and Asian countries. The review puts emphasis on the subjects of transmission power capacity calculation, cable types, cable joint, cable and joint design in installation and construction, cable quality evaluation test, field test method and maintenance and aging diagnosis methods as well as recent main oversea standards in comparison with those in Japan.