▎ 摘　　要

NOVELTY - The cable has a heating element (1) that is provided with copper wires (2) symmetrically inside, and an insulating layer (4) is provided on an outside of the heating element. A shielding layer (5) is closely attached to an outer side of the insulating layer, and a sheath (6) is provided on an outer side of the shielding layer. The sheath is provided with a fiber fabric layer (601) and an oil-resistant nano layer (602). An outermost layer of the sheath is arranged as the oil-resistant nano layer, and the fiber fabric layer is located between the oil-resistant nano layer and the shielding layer USE - Electric heating cable for oil pipeline. ADVANTAGE - The uniformity of the thermal conductivity of the copper wire is improved by coating a graphene material thermally conductive coating on the outer side of the copper wire. The cable improves the heat conduction efficiency, and at the same time, and the electric tracing cable is used in actual use by coating the oil-resistant nano layer outside the fiber fabric layer of the sheath. The electric heating cable has the function of oil resistance when the oil pipeline ruptures. The damage caused by oil pollution to the electric heating cable is reduced, such that greatly improving the service life of the heating cable. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the electric heating cable for oil pipeline. Heating element (1) Copper wire (2) Insulating layer (4) Shielding layer (5) Sheath (6) Fiber fabric layer (601) Oil-resistant nano layer (602)