ELECTRIC POWER CABLE, ELECTRIC POWER CABLE SYSTEM, METHOD FOR GROUNDING ELECTRIC POWER CABLE SYSTEM AND METHOD FOR CONSTRUCTING ELECTRIC POWER CABLE SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide technology capable of maintaining safety even if an electric power cable is laid over a long distance.SOLUTION: In an electric power cable including, from the center to an outer periphery, a conductor, an insulator, an inner shield layer, an inner corrosion prevention layer, an external shield layer, and an external corrosion prevention layer, at one end of an axial direction of the electric power cable, only the inner shield layer in the inner shield layer and the external shield layer is directly grounded, at the other end of the axial direction of the electric power cable, only the external shield layer in the inner shield layer and the external shield layer is directly grounded.SELECTED DRAWING: Figure 1