Patent ID: 11955256
Assignee: PROTERIAL, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A signal transmission cable, comprising:
a conductor;
an insulator covering around the conductor,
a shield layer covering around the insulator;
a sheath covering around the shield layer, and
a plating base layer is provided between the insulator and the shield layer to cover around the insulator,
wherein the shield layer comprises a plating layer provided to cover the plating base layer to be in contact with an outer peripheral surface of the plating base layer,
wherein a surface roughness of an outer peripheral surface of the plating layer is less than a surface roughness of an inner peripheral surface of the plating layer,
the outer peripheral surface of the plating base layer is roughened to have a surface roughness of 2 μm or more, and
the arithmetic mean roughness Ra of the inner peripheral surface of the plating layer is 2 μm or more and the arithmetic mean roughness Ra of the outer peripheral surface of the plating layer is less than 2 μm, and
wherein the insulator comprises a fluoropolymer and the plating base layer comprises polyethylene or polypropylene.