Cu ALLOY MATERIAL, METHOD OF MANUFACTURING Cu ALLOY CONDUCTOR USING THE SAME, Cu ALLOY CONDUCTOR OBTAINED BY THE METHOD, AND CABLE OR TROLLEY WIRE USING THE Cu ALLOY CONDUCTOR

A method of manufacturing a Cu alloy conductor with use of a rolled material formed in a continuous casting and rolling process by using a molten Cu alloy, comprising:

• adding and dissolving Sn of 0.1-0.4 weight %, at least a kind of an additive element of 0.01-0.7 weight % having a larger affinity with oxygen than Sn, and a sum of the Sn and the additive element of 0.3-0.8 weight %, to a Cu matrix containing oxygen of 0.001-0.1 weight % (10-1000 weight ppm) to form the molten Cu alloy;
• performing a continuous casting with the molten Cu alloy, as well as rapidly quenching a casting material to a temperature at least 15° C. lower than a melting point of the molten Cu alloy;
• controlling the casting material at a temperature equal to or lower than 900° C.;
• and
• performing a plurality of hot rolling processes to the casting material such that a temperature of a final hot rolling is within a range of from 500 to 600° C. to form the rolled material.