High voltage joint

1. A device for connecting an end of a HV cable to an HV installation, comprising

a) a pre-fabricated pipe-like unit, which comprises

b) a connection piece made out of an electrically conducting material and

c) an insulator tube which is connected to the connection piece in a fluid-tight way and

d) a fluid-filled cable connector which is a part of the pre-fabricated pipe-like unit and which is connected to the connection piece in a fluid-tight way and which can provide a connection of a metallic layer of a fluid-filled cable to the pipe-like unit if the fluid-filled cable is connected to the pipe-like unit.

2. A device according to claim 1 wherein the connection piece comprises a receiving part of a connection system whereby the connection system establishes an electrical and mechanical connection between a conductor of the HV cable and the connection piece.

3. A device according to claim 1 whereby the connection piece has a non-deforming outer shape.

4. A device according to claim 2 wherein the connection piece forms a fluid-tight cavity and where a wall of the cavity forms the receiving part of the connection system.

5. A device according to claim 2 , wherein the receiving part of the connection system has two openings, one being the opening to enter a counter part of the connection system and one connecting the receiving part of the connection system with a second receiving part of a second connection system.

6. A device according to claim 1 comprising a single-piece pre-moulded body with a continuous opening and including field shaping elements.

7. A device according to claim 1 wherein the fluid-filled cable connector is made out of a conducting material.

8. A device according to claim 6 wherein the fluid-filled cable connector comprises an inner region which is suitable to contact deflectors and a middle region which has a hole.

9. A device according to claim 1 wherein the pipe-like unit comprises only one connection piece, only one fluid-filled cable connector and only one insulation tube.

10. A device according to claim 1 wherein a termination lug is connected to the connection piece.

11. A device according to claim 1 wherein the pipe-like unit comprises two insulation tubes, two fluid-filled cable connectors and one connection piece.

12. A cable joint comprising a device according to claim 1 and at least one fluid-filled high voltage cable.

13. A termination comprising a fluid-filled high voltage cable and a device according to claim 10 .

14. A method for installing the device of claim 1 , comprising the following steps:

a) Providing a bare end of a fluid-filled cable comprising a conductor, a semiconducting layer and metallic layer and a protection layer, by removing said layers from the conductor;

b) Placing the pipe-like unit on the bare end of the fluid-filled cable and fixing the conductor to the connection piece.

15. A method according to claim 14 with the device of claims 6 and 9 and two HV cables from which at least one is a fluid-filled one, where the installation of the field shaping elements is done by

a) Slipping the body in a park position on one of the cables prior to connecting them, and

b) After connecting the cables, slipping the body on the pipe-like unit, so that all fluid-filled cable connectors contact a field deflector.

16. A method according to claim 14 with the device of claims 6 and 11 and two HV cables from which at least one is a fluid-filled one, where the installation of the field shaping elements is done by

a) Slipping the body in a park position on one of the cables prior to connecting them, and

b) After connecting the cables, slipping the body on the pipe-like unit, so that all fluid-filled cable connectors contact a field deflector.

17. A method according to claim 14 with the device of claim 8 comprising the steps

a) Connecting a pump to the hole in the side of the fluid-filled cable connector

b) Using a pump to remove any undesired fluids, e.g. air.