Removable shed sleeve for switch

Patent metadata

Field	Value
Publication number	US-10614976-B2
Application number	US-201514882861-A
Country	US
Kind code	B2
Filing date	Oct 14, 2015
Priority date	Mar 2, 2012
Publication date	Apr 7, 2020
Grant date	Apr 7, 2020

Abstract

A method for assembling a housing for a high voltage electrical switch includes providing a tubular body having a top portion and a bottom portion opposite the top portion, wherein the tubular body is configured to receive a vacuum bottle assembly within the tubular body; sliding a first shed sleeve over an outside surface of the top portion without creating a permanent bond, wherein an interior surface of the first shed sleeve forms a dielectric interface between the outside surface of the top portion and the interior surface of the first shed sleeve; and sliding a second shed sleeve over an outside surface of the bottom portion without creating a permanent bond, wherein an interior surface of the second shed sleeve forms a dielectric interface between the outside surface of the bottom portion and the interior surface of the second shed sleeve.

First claim

What is claimed is:

1. A method for assembling a housing for a high voltage electrical switch, the method comprising:
providing a tubular body having an integrated shed sleeve, a first portion, a second portion, wherein the tubular body is configured to receive a vacuum bottle assembly within the tubular body, and wherein the integrated shed sleeve is integral to the tubular body, the integrated shed sleeve, the first portion, and the second portion being positioned along different portions of the tubular body;
sliding a first shed sleeve over an outside surface of the first portion without creating a permanent bond, wherein an interior surface of the first shed sleeve forms a dielectric interface between the outside surface of the first portion and the interior surface of the first shed sleeve, and wherein the first shed sleeve includes a plurality of radially extending fins;
sliding a second shed sleeve over an outside surface of the second portion without creating a permanent bond, wherein an interior surface of the second shed sleeve forms a dielectric interface between the outside surface of the second portion and the interior surface of the second shed sleeve,
selecting the first shed sleeve from a group of shed sleeves having creep distances between fins of the first shed sleeve that are different than creep distances between a plurality of radially extending fins of the integrated shed sleeve.

2. The method of claim 1 , wherein the first shed sleeve is retained on the outside surface of the first portion via an interference or friction fit, and wherein the second shed sleeve is retained on the outside surface of the second portion via an interference or friction fit.

3. The method of claim 1 , further comprising:
selecting the first shed sleeve from a group of shed sleeves including ethylene-propylene-dienemonomer (EPDM) elastomer shed sleeves and silicone shed sleeves based on an outer diameter of the first portion, and
selecting the second shed sleeve from another group of shed sleeves including ethylene-propylene-dienemonomer (EPDM) elastomer shed sleeves and silicone shed sleeves based on an outer diameter of the second portion.

4. The method of claim 1 , wherein the second shed sleeve includes a plurality of radially extending fins, and wherein the method further comprises:
selecting one of the first shed sleeve and the second shed sleeve from a group of shed sleeves having creep distances between fins that are different than creep distances between fins of the other of the first shed sleeve and the second shed sleeve.

5. The method of claim 1 , wherein the outside surface of the first portion includes a first outside diameter,
wherein the first shed sleeve includes a first opening with a first inside diameter that is smaller than the first outside diameter,
wherein sliding the first shed sleeve over the outside surface of the first portion includes stretching the first shed sleeve over the first outside diameter of the first portion, and
wherein the integrated shed sleeve extends in a direction along the tubular body that is non-parallel to a direction of at least one of the first portion and the second portion.

6. The method of claim 1 , wherein the outside surface of the second portion includes a second outside diameter,
wherein the second shed sleeve includes a second opening with a second inside diameter that is smaller than the second outside diameter,
wherein sliding the second shed sleeve over the outside surface of the second portion includes stretching the second shed sleeve over the second outside diameter of the second portion, and
wherein the integrated shed sleeve extends in a direction along the tubular body that is non-parallel to a direction of at least one of the first portion and the second portion.

7. A method for assembling a housing for a high voltage electrical switch, the method comprising:
providing a tubular body having at least a first portion, the tubular body further including an integrated shed sleeve that is integral to the tubular body, the first portion and the integrated shed sleeve being positioned along different portions of the tubular body, wherein the tubular body is configured to receive a vacuum bottle assembly within the tubular body;
sliding a first shed sleeve over an outside surface of the first portion without creating a permanent bond, wherein an interior surface of the first shed sleeve forms a dielectric interface between the outside surface of the first portion and the interior surface of the first shed sleeve, and wherein the first shed sleeve is retained on the outside surface of the first portion via an interference or friction fit; and
selecting the first shed sleeve from a group of shed sleeves based on a creep distance between a plurality of radially extending fins of the first shed sleeve being different than a creep distance between a plurality of radially extending fins of the integrated shed sleeve.

8. The method of claim 7 , wherein the outside surface of the first portion has a first outside diameter,
wherein the first shed sleeve includes a first opening with a first inside diameter that is smaller than the first outside diameter, and
wherein sliding the first shed sleeve over the outside surface of the first portion includes stretching the first shed sleeve over the first outside diameter of the first portion.

9. The method of claim 7 , wherein the first shed sleeve comprises one of an ethylene-propylene-dienemonomer (EPDM) elastomer or silicone, and
wherein the tubular body further includes a side interface, the first portion being non-parallel to the side interface, the method further comprising:
sliding a second shed sleeve over an outside surface of the side interface without creating a permanent bond, wherein an interior surface of the second shed sleeve forms a dielectric interface between the outside surface of the side interface and the interior surface of the second shed sleeve, and wherein the second shed sleeve is retained on the outside surface of the side interface via an interference or friction fit.

10. The method of claim 7 , further comprising:
removing the first shed sleeve from the outside surface of the first portion; and
installing, over the outside surface of the first portion, a replacement shed sleeve that includes a plurality of radially extending fins, wherein the replacement shed sleeve is retained on the outside surface of the first portion via an interference fit.

11. The method of claim 10 , wherein the replacement shed sleeve includes an ethylene-propylene-dienemonomer (EPDM) elastomer, silicone, or a thermoplastic elastomer.

12. The method of claim 10 , further comprising:
selecting, from a plurality of differently-sized shed sleeves, the replacement shed sleeve that is configured to fit over the outside surface of the first portion.

13. The method of claim 10 , wherein the replacement shed sleeve forms a dielectric interface between the outside surface of the first portion and an interior surface of the replacement shed sleeve.

14. The method of claim 10 , wherein the plurality of radially extending fins for the replacement shed sleeve include a second creep distance that is different than the creep distance between the plurality of radially extending fins of the first shed sleeve.

15. The method of claim 10 , wherein the removing is performed without a structural change to the outside surface of the first portion.

16. The method of claim 10 , further comprising:
providing the high voltage electrical switch, and wherein the first portion is a top portion of the t

Assignees

• Thomas & Betts Int Llc

Inventors

• Borgstrom Alan D
• Higgins Kieran

Classifications

• H01H2033/6623

  Details relating to the encasing or the outside layers of the vacuum switch housings · CPC title

• H01H31/023

  Base and stationary contacts mounted thereon · CPC title

• H01H2223/00

  Casings · CPC title

• Y10T29/49105

  Switch making · CPC title

• H01H33/662 Primary

  Housings or protective screens · CPC title