Claims
- 1. An insulating cap for a loadbreak bushing comprising:
- an outer conductive jacket having an interior surface and an exterior surface, the interior surface having a substantially smooth, dome-shaped upper portion;
- a ground wire receiving member extending from the exterior surface of the conductive jacket; and
- an insulation member positioned within the outer conductive jacket, the insulation member having an interior surface defining a loadbreak bushing receiving space dimensioned to receive and lock the cap on the loadbreak bushing, and an exterior surface with a dome-shaped upper portion which conforms to the dome-shaped upper portion of the interior surface of the conductive jacket, the dome-shaped portion of the insulation member controlling electrical stresses formed therein and whereby the outer conductive jacket is maintained at ground potential at all times.
- 2. An insulating cap defined in claim 1, wherein the outer conductive jacket comprises a conductive rubber material.
- 3. An insulating cap as defined in claim 1, wherein the ground wire receiving member is an integral tab of said conductive jacket and has a bore therethrough for connection of a ground wire.
- 4. An insulating cap as defined in claim 1, further comprising an eyelet assembly mounted to a top end section of the conductive jacket for use with a removal tool.
- 5. An insulating cap as defined in claim 1, wherein the insulation member is made from EPDM rubber.
- 6. An insulating cap for a loadbreak bushing comprising:
- an outer conductive material having an exterior surface and an interior surface; and
- an insulation member positioned in adjacent relationship to the interior surface of the outer conductive material, the insulation member having an interior surface and an exterior surface, the interior surface of the insulation member defining a loadbreak bushing receiving space dimensioned to receive and lock the cap on the loadbreak bushing, whereby the insulation member controls electrical stresses formed therein and the outer conductive material is maintained at ground potential at all times.
- 7. An insulating cap as defined in claim 6, wherein the interior surface of the outer conductive material includes a substantially smooth, dome-shaped upper portion and said insulation member exterior surface conforms thereto for controlling electrical stresses formed therein.
- 8. An insulating cap defined in claim 6, wherein the outer conductive material comprises a conductive rubber material.
- 9. An insulating cap as defined in claim 6, wherein the exterior surface of the conductive material includes a ground wire receiving member, said ground wire receiving member being an integral tab of said conductive material and having a bore therethrough for connection of a ground wire.
- 10. An insulating cap as defined in claim 6, further comprising an eyelet assembly mounted to a top end section of the conductive material for use with a removal tool.
- 11. An insulating cap as defined in claim 6, wherein the insulation member is made from EPDM rubber.
- 12. An insulating cap as defined in claim 6, further including a ground wire receiving member electrically connected to the outer conductive material.
- 13. An insulating cap as defined in claim 6, wherein the outer conductive material comprises a conductive paint.
- 14. An insulating cap as defined in claim 6, wherein the outer conductive material comprises conductive rubber.
- 15. In combination,
- a high-voltage loadbreak bushing;
- an insulating cap dimensioned for being placed over the loadbreak bushing, the insulating cap including an inner insulation member having an exterior surface and an interior surface defining a loadbreak bushing receiving space dimensioned to receive and lock the insulating cap on the loadbreak bushing; and
- an outer conductive material having an exterior surface and an interior surface which substantially surrounds the exterior surface of the insulation member, whereby the insulation member controls electrical stresses formed therein and the outer conductive material is maintained at ground potential at all times.
- 16. An insulating cap as defined in claim 15, further including a ground wire receiving member electrically connected to the outer conductive material.
- 17. An insulating cap as defined in claim 15, wherein the outer conductive material comprises a conductive paint.
- 18. An insulating cap as defined in claim 15, wherein the outer conductive material comprises conductive rubber.
- 19. An insulating cap as defined in claim 15, wherein an upper portion of the interior surface of the outer conductive material includes a substantially smooth, dome-shaped section and said insulation member exterior surface conforms thereto for controlling electrical stresses formed therein.
- 20. An insulating cap as defined in claim 15, wherein the insulation member is made from EPDM rubber.
Parent Case Info
This application claims priority from U.S. Provisional Application Ser. No. 60/035503 filed on Jan. 15, 1997.
US Referenced Citations (5)