Patent ID: 7665451

Claim:
A high tension ignition cable for a spark-ignition internal combustion engine, the cable having a resistance per unit length of less than 7 kΩ/m, and comprising: a conductor care formed at least partly with a non-metallic conducting material in a form of a plurality of elongated fibres of carbon fibre or graphite fibre; a semi-conducting layer formed by semiconductor material and having a resistivity that is in a range of 100 Ω·m to 1000 M Ω·m, the semi-conducting layer being disposed substantially around the outside of the conductor core and being configured to damp and dissipate high frequency electrical energy in the cable without changing a resistance of the conductor core, the semiconductor material being flexible; an insulating layer formed by insulating material and disposed around the outside of the semi-conducting layer, a protecting layer disposed outside the insulating layer, the protecting layer being formed by protecting material to protect other components of the cable from damage; and an outermost layer disposed at the outmost of the cable for protecting the cable against corrosion or degradation, the outmost layer being formed of a halogen free flame retardant material.