MATERIAL FOR ELECTRICAL WIRING AND TRANSFORMER

摘要

A material for electrical wirings provided with a cooling function. The material is characterized in that it comprises a slender hollow conductor (1) in which an operating liquid is sealed. Preferably, pieces (3) for electric connections are provided on the end parts or other parts of the hollow conductor (1). By such a configuration, when used for the wirings of electrical apparatuses, by virtue of the heat radiation due to the action of the operating liquid in the hollow conductor (1), there is no necessity to provide other cooling means in the electrical apparatuses, and the material for electrical wirings can contribute to the reduction of the size of the electrical apparatus. Also, this invention relates to a transformer in which the material for electrical wirings is used for the coil on its low voltage side. Since the coil heated by the large current flowing through it dessipates the heat by itself, there is no necessity to provide other coiling means.