ELECTRICAL CABLE JUNCTION

Abstract

This electrical cable junction (10) comprises two electrical cables, each cable having at least one conductor (121, 122), and an electrically insulating layer (141, 142) surrounding at least one conductor (121, 122). The junction (10) also includes a connector (18) interconnecting the two cables at at least one conductor (121, 122) of each cable. The junction (10) further includes a deflector (20) arranged around the connector (18). Figure for the abbreviation: Fig. 1

Description

Title of the invention: ELECTRICAL CABLE JUNCTION

[0001] The present invention relates to an electrical cable junction.

[0002] It is particularly applicable, but not exclusively so, in the field of medium voltage cable loops.

[0003] To apply high voltages and high currents in a medium voltage cable loop, terminations are usually used.

[0004] However, the use of terminations presents several drawbacks. Indeed, terminations are expensive and bulky devices. Furthermore, their installation is time-consuming and their maintenance is complex.

[0005] The present invention aims to remedy the aforementioned drawbacks of the prior art.

[0006] To this end, the present invention proposes an electrical cable junction comprising two electrical cables, each of the electrical cables comprising at least one conductor, an electrically insulating layer surrounding the at least one conductor, the junction further comprising a fitting interconnecting the two cables at the level of the at least one conductor of each cable, the junction being notable in that it further comprises a deflector arranged around the fitting.

[0007] Thus, the present invention constitutes an accessory smaller than a termination, very practical, for example, for closing a loop of medium-voltage cable, at a lower cost, with quick installation and simple maintenance. It allows the application of high voltages and the flow of high-intensity currents without excessive temperature rise. In addition, the deflector prevents the strengthening of the electric field at the connection point.

[0008] In a particular embodiment, the deflector is metallic.

[0009] This allows the deflector to electrically connect the two cables.

[0010] In a particular embodiment, the deflector is cylindrical.

[0011] This shape allows for better distribution of the electric field and avoids field reinforcements.

[0012] In a particular embodiment, the cables are medium voltage cables.

[0013] For the same purpose as indicated above, the present invention also proposes a medium voltage cable loop, remarkable in that it includes an electrical cable junction such as is succinctly described above.

[0014] The special characteristics and advantages of the medium voltage cable loop being similar to those of the electrical cable junction, they are not repeated here. Brief description of the drawings

[0015] Other aspects and advantages of the invention will become apparent from the following detailed description of particular embodiments, given by way of non-limiting examples, with reference to the accompanying drawings, in which:

[0016] [Fig-1] is a schematic representation of an electrical cable junction according to the present invention, in a particular embodiment. Description of embodiment(s)

[0017] As shown in [Fig.1], in a particular embodiment, an electrical cable junction 10 according to the present invention comprises two electrical cables.

[0018] Each of the electrical cables, arranged on either side of the junction, comprises respectively at least one conductor 12b 122, an electrically insulating layer 14i, 142 which surrounds the respective conductor 12b 122 and, optionally, an outer sheath 16i, 162 which surrounds the electrically insulating layer 14b 142.

[0019] The junction 10 further includes a fitting 18 which interconnects the two cables at the level of at least one conductor 12B 122 of each cable.

[0020] According to the present invention, the junction 10 further comprises a deflector 20 arranged around the fitting 18. The effect of the deflector 20 is to avoid the reinforcement of the electric field at the fitting 18. By way of non-limiting example, this is useful when measuring partial discharges, because the deflector makes it possible to avoid the presence of electrical signals at the fitting 18 which would distort the measurement.

[0021] As shown in [Fig. 1], the deflector 20 is in the form of a sleeve with a rounded shape at each end. The width of the deflector 20, that is, its dimension in the longitudinal direction of the joint 10, is greater than the width of the fitting 18. In other words, the deflector 20 extends beyond the fitting 18 on both sides.

[0022] The deflector 20 can be metallic, which allows it to both electrically connect the two cables at the level of their respective conductors 12b 122 and to avoid the reinforcement of the electric field at the connection 18.

[0023] In addition, the deflector 20 can be cylindrical, as illustrated in the particular embodiment of [Fig.1].

[0024] By way of non-limiting example, the cables may be medium voltage electrical cables.

[0025] A medium voltage cable loop according to the invention includes an electrical cable junction as described above, adapted to close the cable loop.

Claims

Demands

1. Electrical cable junction (10) comprising two electrical cables, each of the electrical cables comprising at least one conductor (12i, 122), an electrically insulating layer (14b 142) surrounding the at least one conductor (12b 122), the junction (10) further comprising a connector (18) interconnecting the two cables at the level of the at least one conductor (12i, 122) of each cable, the junction (10) being characterized in that it further comprises a deflector (20) disposed around the connector (18).

2. Junction (10) according to claim 1, characterized in that the deflector (20) is metallic.

3. Junction (10) according to claim 1 or 2, characterized in that the deflector (20) is cylindrical.

4. Junction (10) according to any one of the preceding claims, characterized in that the cables are medium voltage cables.

5. Medium voltage cable loop, characterized in that it comprises an electrical cable junction (10) according to any one of the preceding claims.

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