Patent ID: 9669733
Date: 2017-06-06
CPC Classifications: B60M

Claim:
1. A self-insulated power supply line for a vehicle, the self-insulated power supply line comprising: an insulating protective casing forming an elongated cavity; a plurality of conducting elements external to the insulating protective casing; a flexible belt element including portions made of ferromagnetic material, the flexible belt element being housed inside the elongated cavity of the insulating protective casing; wherein, responsive to magnetic attraction originating from outside the insulating protective casing, the flexible belt element is configured to be mobile between: wherein movement of the vehicle along the self-insulated power supply line creates movement of the flexible belt element between the low position and the high position to allow sequential power supply of the plurality of conducting elements; and at least one traction current return electric line external to the insulating protective casing and accessible from a road surface, wherein the at least one traction current return electric line comprises detecting means adapted to measure the presence of a dispersion current in the first power supply line to detect a potential danger; the detecting means being furthermore adapted to measure the dispersion current running in the first power supply line following electrical dispersion on the road surface between one of the plurality of conducting elements that is live and another of the plurality of conducting elements adjacent to the one of the plurality of conducting elements that is live; wherein the detecting means are adapted to distinguish between: