Single phase underground fused tap

• US 10,460,886 B2
• Filed: 01/26/2019
• Issued: 10/29/2019
• Est. Priority Date: 01/26/2018
• Status: Active Grant

• Current Assignee: Robert K. Jones
• Original Assignee: Robert K. Jones
• Inventors: Jones, Robert K.
• Primary Examiner(s): Hammond, Briggitte R.
• Application Number:
  US16/258,541
• Publication Number:
  US 20190237275A1
• Time in Patent Office: 276 Days
• CPC Class Codes: H01H 85/042 General constructions or structure of high voltage fuses, i.e. above 1000 V
• CPC Class Codes: H01H 85/143 Electrical contacts; Fastening fusible members to such contacts
• CPC Class Codes: H01H 85/20 Bases for supporting the fuse; Separate parts thereof
• CPC Class Codes: H01H 85/205 Electric connections to contacts on the base
• CPC Class Codes: H01H 85/22 Intermediate or auxiliary parts for carrying, holding, or retaining fuse, co-operating with base or fixed holder, and removable therefrom for renewing the fuse
• CPC Class Codes: H01H 9/085 contact separation effected by removing contact carrying element
• CPC Class Codes: H01H 9/102 Fuses mounted on or constituting the movable contact parts of the switch

Abstract

A fused tap for an elbow connector that properly insulates and houses an interruption device or fuse to provide protection on underground distribution power lines. The interruption device is replaceable without the need of replacing the entire assembly. The fused tap provides flexibility in installation for existing and new underground distribution lines and/or feeders.

Claims

1. An apparatus comprising:

a first insulated interface covering a first conductive probe tip comprising a first metal conductor casing having a threaded first probe end, the first insulated interface having a first molded rubber sleeve end;

a second insulated interface covering a second conductive probe tip comprising a second metal conductor casing having a threaded second probe end, the second insulated interface having a second molded rubber sleeve end;

a fuse having a first conductive end and a second conductive end;

the first conductive end and the second conductive end comprising threaded terminals;

the first conductive end of the fuse connecting to the first conductive probe tip;

the second conductive end of the fuse connecting to the second conductive probe tip;

the second molded rubber sleeve end inserted into the first molded rubber sleeve end;

the threaded first probe end configured to electrically connect to the first conductive end by screwing into the threaded terminal of the first conductive end; and

the threaded second probe end configured to electrically connect to the second conductive end by screwing into the threaded terminal of the second conductive end.

3. The apparatus of claim 1, wherein the first molded rubber sleeve end of the first insulated interface is configured to receive the second molded rubber sleeve end of the second insulated interface in a male-female connection mechanism.

4. The apparatus of claim 3, further comprising an external clamp to releasably secure the connection between the first insulated interface and second insulated interface.

5. The apparatus of claim 4, further comprising a parking bracket releasably secured to the apparatus by a nut and bolt assembly pressing against the outer surface of the apparatus to releasably secure the apparatus in a fixed position.

6. The apparatus of claim 5, further comprising a locking groove configured to releasably connect an external bushing probe to the second insulated interface.

7. The apparatus of claim 6, further comprising guides attached to the front of a contact assembly of the second metal conductor casing disposed within the second insulated interface for positioning the external bushing probe into electrical contact with the contact assembly.

8. The apparatus of claim 6, further comprising a pulling eye to allow insertion or removal of an external bushing probe from the second insulated interface.

9. The apparatus of claim 8, further comprising an external bushing removably connected to the locking groove to provide electrical connections to new or existing lines.

10. The apparatus of claim 1, further comprising a voltage test plug for testing the presence of voltage at a capacitive voltage tap.

11. The apparatus of claim 1, further comprising a grounding eye affixed to each of the first insulated interface and second insulated interface.

2. A method comprising:

providing a first insulated interface covering a first conductive probe tip comprising a first metal conductor casing having a threaded first probe end, the first insulated interface having a first molded rubber sleeve end;

providing a second insulated interface covering a second conductive probe tip comprising a second metal conductor casing having a threaded second probe end, the second insulated interface having a second molded rubber sleeve end;

providing a fuse having a first conductive end and a second conductive end;

the first conductive end and the second conductive end comprising threaded terminals;

electrically connecting the first conductive end of the fuse to the first conductive probe tip by screwing the first threaded probe end into the threaded terminal of the first conductive end;

electrically connecting the second conductive end of the fuse connecting to the second conductive probe tip by screwing the second threaded probe end into the threaded terminal of the second conductive end; and

inserting the second molded rubber sleeve end into the first molded rubber sleeve end.

12. The method of claim 2, wherein the second molded rubber sleeve end of the second insulated interface is inserted into the first molded rubber sleeve end of the first insulated interface in a male-female connection mechanism.

13. The method of claim 12, further comprising the step of releasably securing the connection between the first insulated interface and second insulated interface with an external clamp.

14. The method of claim 13, further comprising the step of releasably securing the apparatus in a fixed position relative to a parking bracket by pressing a nut and bolt against the outer surface of the apparatus.

15. The method of claim 14, further comprising the step of releasably connecting an external bushing probe to the second insulated interface by pressing the external bushing probe into a locking groove on the second insulated interface.

16. The method of claim 15, further comprising the step of positioning the external bushing probe into electrical contact with a contact assembly of the second metal conductor casing disposed within the second insulated interface by inserting the external bushing probe into contact with guides attached to the front of the contact assembly.

17. The method of claim 15, further comprising the step of affixing a pulling eye to the first insulated interface to allow insertion or removal of an external bushing probe from the second insulated interface.

18. The method of claim 17, further comprising the step of removably connecting an external bushing to the locking groove to provide electrical connections to new or existing lines.

19. The method of claim 2, further comprising the step of testing for the presence of voltage at a capacitive voltage tap with a voltage test plug.

20. The method of claim 2, further comprising the step of affixing a grounding eye to each of the first insulated interface and second insulated interface.