Electricity: conductors and insulators – Overhead – With conductor vibration damping means
Patent
1997-12-18
1999-09-14
Reichard, Dean A.
Electricity: conductors and insulators
Overhead
With conductor vibration damping means
191 39, 248 61, H02G 714
Patent
active
059526092
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to an overhead traction wire support.
SUMMARY OF THE INVENTION
It is the object of the present invention to provide an overhead traction wire support which is of structurally simple design. This object is met with an overhead traction wire support comprising a first plate about which there is arranged, on at least one side, at least one leg which can be fastened to a ceiling or a wall of a structure. Furthermore, the overhead traction wire support comprises a second plate, which is produced from an electrically conducting material. The second plate is held at a distance from the first plate via at least one insulator. A current conductor along which a current collector can slide is fastened in an electrically conducting fashion to the second plate on the side which faces away from the first plate. Furthermore, at least one current amplification line is arranged on the second plate parallel to the current conductor.
The arrangement of at least one current amplification line on the second plate, which is produced from an electrically conducting material, produces a mechanically simple electrical coupling of the current conductor to the one or more current amplification lines. The overhead traction wire support according to the invention is thus suitable not only for AC voltage supply but also for DC voltage supply having a high power requirement, and can thus be tuned individually to the respective application.
The overhead traction wire support according to the invention, which is equally well suited both for busbars and for contact wires of all types (e.g., grooved contact wires), has a simple design.
By using insulators in the overhead traction wire support to space the first and second plates apart from one another, there is a further improved flow of current to the current conductor from the current amplification lines via the second plate.
An overhead traction wire support in which the first plate is of greater width and/or length than the second plate affords an increased electrical voltage endurance in the case of a horizontal installation--in which case both the first plate and the second plate extend horizontally--since the edges of the first plate which are situated further to the outside radially, can thereby act as rain-breaking edges. This prevents moisture from being deposited on the second plate.
An overhead traction wire in which legs are provided on the parallel sides of the first plate affords further improved stability, and thus an improved level of vibration response of the current conductor by comparison with the current collector.
The legs by means of which the overhead traction wire support can be fastened to the ceiling or to the wall of a structure, can either be joined in one piece to the first plate, or be constructed as separate parts.
An overhead traction wire support in which the legs have different lengths and/or can be supported at differing angles with respect to the first plate is particularly well suited for fastening to walls which extend with a slope, and for horizontal current collection or for fastening to walls which extend vertically or virtually vertically in the case of lateral current collection.
An overhead traction wire support with length adjustable legs, which can include plate structure for varying the angle of mounting with respect to a wall, is equally well suited both for walls which extend at a slope or with a camber, and ceilings. Using such an overhead traction wire support, it is possible for the position of the current conductor during installation to be matched in a simple way to any track elevations which occur.
In yet another embodiment, at least one damping element may be provided between an insulator and first plate and/or between the insulator and the second plate (this can be parallel to the insulator). The advantage of such an embodiment is that vibrations occurring when the track is traveled over, which are transmitted via the current collector to the current conductor, are damped in the o
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Patel Dhiro R
Reichard Dean A.
Siemens AG
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