ELECTRICAL PENETRATION ARRANGEMENT FOR THE CONNECTION OF ELECTRICAL DEVICES IN CONTAINMENT STRUCTURES

• US 20120321029A1
• Filed: 12/20/2011
• Published: 12/20/2012
• Est. Priority Date: 12/20/2010
• Status: Active Grant

• Current Assignee: Schott AG (Carl-Zeiss-Stiftung)
• Original Assignee: Schott AG (Carl-Zeiss-Stiftung)
• Inventors: BERNAUER, Johann
• Granted Patent: US 9,373,945 B2
• Time in Patent Office: Days
• US Class Current: 376/293
• CPC Class Codes: G21C 13/036 the tube passing through the vessel wall, i.e. continuing on both sides of the wall
• CPC Class Codes: G21F 7/005 Shielded passages through walls; Locks; Transferring devices between rooms between glove-boxes G21F7/047
• CPC Class Codes: H02G 3/22 Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
• CPC Class Codes: H05K 5/0247 Electrical details of casings, e.g. terminals, passages for cables or wiring
• CPC Class Codes: Y02E 30/30 Nuclear fission reactors

Abstract

An electrical penetration arrangement through the wall of a containment structure, comprising a pipe penetration having a pipe which is disposed in the wall of a containment structure, penetrating the wall, so that a first opening of the pipe is disposed outside of the containment structure, and a second opening is disposed inside the structure. Power feedthroughs are disposed in the pipe penetration having conductors sealed along their axial direction by a hermetically sealing, electrically insulating material, in which cables coming from outside can be connected to first conductor ends, and cables coming from inside the containment structure can be connected to second conductor ends. Power feedthroughs are fastened in the pipe of the pipe penetration and sealed by hermetically sealing material, so that the power feedthroughs form a hermetically sealing barrier, and the first conductor ends are disposed in the interior of the pipe.

Claims

1. An electrical penetration arrangement through the wall of a containment structure, comprising:

a pipe penetration having a pipe, which is disposed in the wall of a containment structure, penetrating the wall, so that a first opening of the pipe is disposed outside at the containment structure, and a second opening of the pipe is disposed inside the containment structure,

a plurality of power feedthroughs disposed in the pipe penetration having conductors sealed along their axial direction by a hermetically sealing, electrically insulating material, in which cables coming from outside of the containment structure can be connected to first conductor ends, and cables coming from inside the containment structure can be connected to second conductor ends,

and wherein

the power feedthroughs are fastened in the pipe of the pipe penetration, sealed by the hermetically sealing material, so that the power feedthroughs form a hermetically sealing barrier along the axial direction of the pipe, and wherein

the first conductor ends are disposed in the interior of the pipe at a distance to the first opening, and wherein

electrical conductors are connected to the first conductor ends, and wherein

a junction box is fastened to the outside of the pipe and electrical cables are fed through the wall of said box, and

the electrical conductors and the electrical cables are connected together using connectors, which are disposed within the pipe along the axial section between the first opening and the first conductor ends of the power feedthroughs.

2. The electrical penetration arrangement according to claim 1, wherein the junction box comprises a length of 0.75 meters or less measured in the axial direction of the pipe of the pipe penetration.

3. The electrical penetration arrangement according claim 1, wherein the distance from the conductor ends to first opening of the pipe amounts to more than 1 meter.

4. The electrical penetration arrangement according claim 1, comprising at least one power feedthrough module, in which a plurality of power feedthroughs are disposed in a flange, and the power feedthrough module is fastened to the flange in a sealed manner in the pipe of the pipe penetration.

5. The electrical penetration arrangement according to claim 1, wherein the distance of the connectors to the first pipe opening, measured in the axial direction of the pipe, lies in the range of 20 to 60 centimeters.

6. The electrical penetration arrangement according to claim 1, wherein the electrical cables are inserted into the junction box transverse to the longitudinal direction of the pipe.

7. The electrical penetration arrangement according to claim 1, comprising a support plate disposed in the pipe of the pipe penetration that comprises openings through which the electrical connections extend between the conductor ends and the conductors, wherein the connectors are disposed at the support plate.

8. The electrical penetration arrangement according to claim 1, wherein the penetrations are disposed closer to the second opening than to the first opening of the pipe.

9. The electrical penetration arrangement according to claim 1, wherein the feedthroughs are double-wall power feedthroughs, in which a hermetically sealing, electrically insulating material is disposed in each of two housing elements through which conductors are fed, wherein the housing elements enclose a hermetically sealed interior, into which the conductors extend, wherein the conductors of the first housing element are electrically connected to the conductors of the second housing element, and wherein the conductors extending out of the first housing element form the first conductor ends of the penetration, and the conductors extending out of the second housing element form the second conductor ends of the penetration.

10. The electrical penetration arrangement of claim 1, the electrical penetration arrangement penetrating through the wall of a containment structure of a nuclear power plant.