Patent ID: 6271466
Filing Date: 2001-08-07
Classification: H01B

Abstract:
A grounding cable for use in preventing a high frequency noise that is generated from an electronic device, would remain in the grounding cable, and is transmitted to electric devices, said grounding cable comprising:a conductor, having an inductance L; anda non-metallic conductive material, having a small electric resistance R, disposed, directly or via an insulating layer, on said conductor, electrically contacting said conductor, and operable to consume the high-frequency noise flowing on a surface of said conductor via the electric resistance of said non-metallic conductive material by virtue of a skin effect;wherein when said non-metallic conductive material is disposed on said conductor via said insulating layer, said conductor and said non-metallic conductive material electrically contact each other at two points spaced apart in a longitudinal direction of said conductor; andwherein the electric resistance R of said non-metallic conductive material and the inductance L of said conductor satisfy the formula: 2.pi.fL/R.ltoreq.1 where f is a resonance frequency of the high-frequency noise.