Shielding of high voltage cables

摘要

A magnetically shielded cable arrangement, comprising at least two AC cables (201-203) comprising a spaced portion extending between two close portions of parallel cables, such spaced portion sequentially including a diverging portion, a widely spaced portion and a converging portion, and an EMF shielding system (1) laid over said at least two AC cables (201-203), said EMF shielding system (1) comprising a conductor (2, 3, 11, 12) having two branches (2, 3) forming a median portion (4, 5) and end portions (7-10), the median portion width being equal to or larger than the AC cables distance in the widely spaced portion and the width at the extremities of the end portions (7-10) being larger than the AC cables distance in the close portions and smaller than the AC cables distance in the widely spaced portion, said conductor (2, 3, 11, 12) comprising an inner electrical path (2a, 3a) and an outer electrical path (2e, 3e) connected together (11, 12) at relevant longitudinal ends.

主权项

1. A magnetically shielded cable arrangement, comprising:
at least two alternating current (AC) cables comprising a spaced portion extending between two close portions of parallel cables, the spaced portion sequentially including a diverging portion, a widely spaced portion, and a converging portion; and an electromagnetic field (EMF) shielding system laid over the at least two AC cables; wherein the EMF shielding system comprises a conductor having two branches forming a median portion and end portions, wherein a width of the median portion is greater than or equal to a first AC cables distance in the widely spaced portion, wherein a width at extremities of the end portions is greater than a second AC cables distance in the close portions and less than the first AC cables distance in the widely spaced portion, and wherein the conductor comprises an inner electrical path and an outer electrical path connected together at relevant longitudinal ends.