▎ 摘　　要

NOVELTY - Multilayer electrically conductive wire has a central support core. A set of pairs of layers around the central support core comprises intercalary layer made of a non-carbon based material and a graphene layer. A first layer of a first pair of layers is arranged on an outer surface of the central support core enveloping the outer surface of the central support core. The first layer and a second layer separates each graphene layer from another graphene layer by one of the intercalary layers. USE - Multilayer electrically conductive wire for use in an aeronautics field to lighten an airplane. ADVANTAGE - The multilayer electrically conductive wire has improved conductivity while optimizing the manufacturing cost, reduces weight, retains the interest of airplanes made of composite material, and monitors composite structures very present in the aeronautics field. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a method for manufacturing a multilayer electrically conductive wire, which involves: (a) continuously unwinding a conductive wire under construction comprising central core from a first coil; (b) depositing successive pairs of layers around the central core comprising for each deposition of a pair of layers a first sub-step of inserting the conductive wire under construction into a device for depositing a coating of an intercalary layer made of a non-carbon based material, a second sub-step of continuously inserting a portion of the conductive wire comprising on the outer surface the intercalary layer arranging in the preceding first sub-step into a chamber for chemical vapor deposition (CVD) of graphene into which gas comprising carbon is introduced and in which is deposited a graphene layer on the outer surface of the intercalary layer; and (c) winding the multilayer conductive wire having pairs of layers around a second coil; (2) a production line for the manufacture of a multilayer electrically conductive wire, which comprises a first device for unwinding/winding from a first coil comprising in the initial state the central core, a device for arranging a coating of intercalary layers made of a non-carbon material, a device for chemical vapor deposition (CVD) of graphene, comprising a chamber and at least one nozzle for injecting a gas comprising carbon into the chamber to deposit a graphene layer on the intercalary layer; and (3) an apparatus for the manufacture of a multilayer electrically conductive wire, which comprises a negative pressure chamber comprising a pressure less than atmospheric pressure, the production line for the manufacture of a multilayer electrically conductive wire housed in the negative pressure chamber. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of multilayer electrically conductive wire. Central core (10) Conductive layers (11) Electrical insulator (19) Intercalary layer (110) Graphene layer (131)