Caps for power distribution system components

Patent metadata

Field	Value
Publication number	US-10460858-B2
Application number	US-201815950376-A
Country	US
Kind code	B2
Filing date	Apr 11, 2018
Priority date	Apr 14, 2017
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

The present disclosure provides embodiments of power distribution system components, such as arresters, isolators, bushings, and fuses that include one or more end caps that have predefined heat resistant characteristics that can withstand high temperatures without melting, flowing or generating sparks when subject to such high temperatures.

First claim

What is claimed is:

1. A power distribution system component comprising:
a housing having a first end and a second end, wherein a first electrical terminal extends from the first end and a second electrical terminal extends from the second end;
a first end cap disposed at the first end of the housing, the first end cap being a substantially solid structure from a center aperture of the first end cap to an outer wall of the first end cap, the first end cap being made of a heat resistive material that softens when subject to high levels of heat but does not melt, flow or generate sparks when subject to high levels of heat for a predetermined period of time; and
a second end cap disposed at the second end of the housing.

2. The power distribution system component according to claim 1 further comprising an insulating cover releasably secured to the first electrical terminal.

3. The power distribution system component according to claim 2 , wherein the insulating cover is made of a heat resistive material that may soften when subject to high levels of heat but does not melt, flow or generate sparks when subject to high levels of heat for a predetermined period of time.

4. The power distribution system component according to claim 1 , wherein the housing comprises a tubular body having a hollow core.

5. The power distribution system component according to claim 1 , wherein the housing comprises a tubular body having a hollow core and a plurality of fins extending radially outward from the tubular body.

6. The power distribution system component according to claim 1 , wherein the first end cap comprises a cylindrical shaped member having a center aperture to permit the first electrical terminal to pass through the first end cap.

7. The power distribution system component according to claim 1 , wherein the first end cap comprises a base portion and a fin portion extending from the base portion.

8. The power distribution system component according to claim 7 , wherein the base portion comprises a cylindrical shaped member and the fin portion extending from the base portion comprises a cylindrical shaped member.

9. The power distribution system component according to claim 1 , wherein the first end cap comprises a base and a cover removably attached to the base.

10. The power distribution system component according to claim 9 , wherein the cover is pivotally secured to the base.

11. The power distribution system component according to claim 9 , wherein the base comprises a cylindrical shaped member having a center aperture to permit the first electrical terminal to pass through the base.

12. The power distribution system component according to claim 9 , wherein the cover comprises a cylindrical shaped member having a central opening capable of enclosing the first electrical terminal passing through the base when the cover is in a closed position.

13. The power distribution system component according to claim 9 , wherein the cover comprises a dome.

14. The power distribution system component according to claim 1 , wherein the second cap is made of a heat resistive material that may soften when subject to high levels of heat but does not melt, flow or generate sparks when subject to high levels of heat for a predetermined period of time.

15. The power distribution system component according to claim 14 , wherein the second end cap comprises a cylindrical shaped member having a center aperture to permit the second electrical terminal to pass through the second end cap.

16. The power distribution system component according to claim 14 , wherein the second end cap comprises a cylindrical shaped base portion and a fin portion extending from the base portion.

17. The power distribution system component according to claim 1 , wherein the power distribution system component comprises an arrester.

18. A power distribution system component comprising:
a housing having a first end and a second end, wherein a first electrical terminal extends from the first end and a second electrical terminal extends from the second end;
a first end cap disposed at the first end of the housing, the first end cap having a base and a cover removably attached to the base, the base being a substantially solid structure from a center aperture of the base to an outer wall of the base, the first end cap is made of a heat resistive material that softens when subject to high levels of heat but does not melt, flow or generate sparks when subject to high levels of heat for a predetermined period of time; and
a second end cap at the second end of the housing.

19. The power distribution system component according to claim 18 , wherein the cover is pivotally secured to the base.

20. The power distribution system component according to claim 18 , wherein the base comprises a cylindrical shaped member having a center aperture to permit the first electrical terminal to pass through the base.

21. The power distribution system component according to claim 18 , wherein the cover comprises a cylindrical shaped member having a central opening capable of enclosing the first electrical terminal passing through the base.

22. The power distribution system component according to claim 21 , wherein the cover comprises a dome.

23. The power distribution system component according to claim 18 , wherein the second cap is made of a heat resistive material that may soften when subject to high levels of heat but does not melt, flow or generate sparks when subject to high levels of heat for a predetermined period of time.

24. The power distribution system component according to claim 23 , wherein the second end cap comprises a cylindrical shaped member having a center aperture to permit the second electrical terminal to pass through the second end cap.

25. The power distribution system component according to claim 23 , wherein the second end cap comprises a cylindrical shaped base portion and a fin portion extending from the base portion.

26. The power distribution system component according to claim 18 , wherein the power distribution system component comprises an arrester.

Assignees

• Hubbell Inc

Inventors

• Khatri Mohamed Fayaz
• Rau Austen William

Classifications

• H01T4/04

  Housings (H01T4/06 takes precedence) · CPC title

• H01C1/028

  the resistive element being embedded in insulation with outer enclosing sheath · CPC title

• H01C1/02 Primary

  Housing; Enclosing; Embedding; Filling the housing or enclosure · CPC title

• H01C7/12

  Overvoltage protection resistors; Arresters · CPC title

• H01C1/084

  using self-cooling, e.g. fins, heat sinks · CPC title