Compound type single core power cable

The present utility model belongs to a power cable, exactly to a compound type single core powder cable. The prior power cables, optical cables and communication telephone cables only have single function. Through improvement, though a number of compound cables which combine optical fibers with the power cables appear, the weight of the cables is increased, and the protection intensity is reduced. The present utility model aims to provide a compound type single core powder cable which is characterized in that the periphery of a single core high voltage power cable is spirally surrounded with an additional cable for transmitting data information and signals, the additional cable is supported by a support band which is provided with a support body and a thermovent, and the additional cable is protected by a protective belt, thus solving problems that the prior compound power cables have single function and the protection intensity is low.