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Dedicated grounding wire clamp for power cable wiring terminal

A technology of terminal blocks and grounding clamps, which is applied in the direction of electrical connection seats and connection contact materials, etc., can solve problems such as safety accidents, loss of grounding protection of cable heads, etc., and achieve the effects of preventing injuries, ensuring safety, and being easy to manufacture

Inactive Publication Date: 2020-03-10
NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above two kinds of grounding clamps can be firmly clamped to the wire, so that the cable and the grounding clamp are in close contact, ensuring that the clamp will not loosen and form a false hang when the clamp is vibrated during the construction process. However, after the cable is removed, the cable head loses Grounding protection, when there is induction electricity or wrong operation reverse power transmission, safety accidents will occur

Method used

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  • Dedicated grounding wire clamp for power cable wiring terminal
  • Dedicated grounding wire clamp for power cable wiring terminal
  • Dedicated grounding wire clamp for power cable wiring terminal

Examples

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Embodiment 1

[0031] refer to figure 1 , this embodiment provides a special grounding clamp for power cable terminals, including a clamping mechanism and a connecting mechanism arranged on the clamping mechanism; the clamping mechanism includes two splints 2 and Connect the fixed module; the connection mechanism includes a wire 1 connecting two splints 2, and the splint 2 is connected to a grounding wire. The fixing module includes a lead screw 3 connected to the two splints 2, a through hole with an internal thread is provided on the splint 2, and a positive hole matching the internal thread is provided at one end of the lead screw 3. external thread, the other end of the screw 3 is provided with a reverse external thread matching the internal thread. A handle 4 is provided at the end of the lead screw 3 .

[0032] In this embodiment, the splint 2 is a copper plate with a cuboid structure, and the wire 1 is a copper wire with an insulating layer, which is fixed on the copper plate by bol...

Embodiment 2

[0037] refer to figure 2 , this embodiment provides a special grounding clamp for power cable terminals, which is an improvement on the basis of Embodiment 1: the fixing module includes a connecting rod 5 connected to the splint 2, and two connecting rods 5 The rods 5 are cross-connected, and a connecting piece is arranged between the two connecting rods 5 . The connecting piece can be a spring 6 or a bolt 7, and of course, the spring 6 and the bolt 7 can also be provided at the same time. The connecting rod 5 is welded on the splint 2 . The two connecting rods 2 are cross-connected, and the connecting piece is fixed at the lower part of the crossing part, which is similar to scissors. Of course, it can also be designed that the ends of the two connecting rods 2 are connected together, like tweezers, and the connecting piece is arranged between the two connecting rods 2 . Through the elastic force of the spring 6 and the tightness of the bolt 7, the adjustment of the dista...

Embodiment 3

[0039] refer to image 3 , This embodiment provides a special grounding clamp for power cable terminals, which is an improvement on the basis of Embodiment 1 or 2: the lower part of the inner side of the clamping plate 2 is provided with a limiting structure. The limiting structure is a limiting block 8 welded on the lower part of the splint 2 . The thickness of the limiting block 8 matches the thickness of the head of the connecting terminal 9 . Since the terminal is usually fixed on the fixture, the advantage of this design is that the splint 2 can just clamp the terminal 9 through the limit block 2 instead of clamping the fixture. When the terminal is disassembled, it can always be grounded. Ensure the personal safety of operators.

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Abstract

The invention provides a dedicated grounding wire clamp for a power cable wiring terminal, and belongs to the grounding wire technology field. The wire clamp comprises a clamping mechanism and a connecting mechanism arranged on the clamping mechanism. The clamping mechanism comprises two clamping plates and a fixing module connected with the clamping plates. The connecting mechanism comprises a lead for connecting the two clamping plates, and the clamping plates are connected with a grounding wire. The two clamping plates with the grounding wires are tightly fixed to a wiring terminal of a cable, the wiring terminal of the cable is always protected by the grounding wires in a process of unfastening the wiring terminal, after unfastening and when wiring is recovered, and damages to maintainers caused by induced electricity or misoperation reverse power transmission can be effectively prevented.

Description

technical field [0001] The invention relates to the technical field of grounding wires, in particular to a special grounding wire clip for a power cable terminal. Background technique [0002] With the development of the national economy and the continuous transformation and upgrading of urban and rural power grids, the number and length of power cables have increased rapidly. Power cables are generally connected to other electrical equipment through terminal blocks. When performing maintenance tests on power cables or the electrical equipment connected to them on site, it is generally necessary to untie the terminal blocks of the cables from the electrical equipment. [0003] At present, the actual situation on site is that after the cable terminal is completely untied, the short-circuit grounding wire is suspended at the three-phase cable terminal. But in the process of untying the cable terminal, the cable head is easy to lose the grounding protection. At the same time,...

Claims

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Application Information

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IPC IPC(8): H01R4/64H01R11/26
CPCH01R4/64H01R11/26
Inventor 杜岩伟李书军李智健孟丽英杜宇轩张向伍段晓张丰林杜好申杜文
Owner NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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