CN206274554U - A kind of dismountable portable high-pressure ground wire - Google Patents

Abstract

The utility model discloses a detachable portable high-voltage grounding wire, which comprises several groups of grounding components, grounding wires, confluence clips, and grounding terminals. Short-circuit wire; one end of the grounding wire is connected to the confluence clamp, and the other end is connected to the grounding terminal; each group of grounding components also includes a first copper nose and a threaded joint, and the first copper nose is connected to the wire clamp of the same group, and is provided with an internal thread , the threaded joint is fixed at one end of the short-circuit line of the same group, and is screw-cooperated with the internal thread of the first copper nose; the other end of the short-circuit line of each group of grounding components is respectively connected to the confluence clamp. The utility model is not only convenient and quick to disassemble and carry, but also can reduce the cumbersomeness of winding short-circuit wires and grounding wires, thereby shortening the power transmission time, reducing the deviation of power transmission and stopping, and improving the reliability of power supply. characteristics.

Description

A detachable portable high-voltage grounding wire

technical field

The utility model relates to a high-voltage grounding wire, in particular to a detachable portable high-voltage grounding wire.

Background technique

With the improvement of people's living standards and the development of the economy and society, the power load and the scale of the power grid continue to expand, and the planned power outage maintenance and emergency repair construction operations of power grid enterprises are also increasing. These operations are inseparable from a very important safety tool, that is, the high-voltage grounding wire.

The high-voltage grounding wire is used in the construction of lines and substations. It is used to prevent electrostatic induction electric shocks near electrified bodies or to ensure safety when closing the switch by mistake. It is a safety barrier to protect maintenance personnel and a lifeline for electric power employees. It can prevent sudden calls Harm to the human body. Therefore, the installation of grounding wire is an important electrical safety technical measure. When switching operations or handling the first electrical work ticket to arrange safety measures, it is often necessary to connect the grounding wire (such as some main transformer maintenance or 35kV lines) during overhaul).

Since the grounding wires currently used are combined with poles, on the one hand, it is inconvenient to carry; on the other hand, it is very troublesome to arrange the grounding wires after removing the grounding wires, especially for the 35kV grounding wires with long wires, which requires at least three people to cooperate with each other , time-consuming and labor-intensive. It is not uncommon for power outages and transmission deviations to occur due to overtime switching operations such as assembly, disassembly, and connection of wires. Strict, at the same time, the user's tolerance for power outage deviation is almost zero.

Therefore, it is imperative to develop a portable high-voltage grounding wire to improve the efficiency of arranging safety measures during power outage maintenance of substation equipment. New methods, new technologies, and new tools will reduce the power transmission deviation of substation equipment and provide ample space for maintenance work. Time, promote the lean management of power grid equipment and improve the quality service concept of State Grid Corporation.

Utility model content

The utility model provides a detachable portable high-voltage grounding wire, which overcomes the shortcomings of the currently used grounding wires and rods in one.

The technical solution adopted by the utility model to solve the technical problem is: a detachable portable high-voltage grounding wire, including several groups of grounding components, grounding wires, confluence clips, and grounding terminals, and each group of grounding components includes an insulating operating rod, installation Conductor clips and short-circuit wires at the top of the insulated operating rod; one end of the ground wire is connected to the bus clamp, and the other end is connected to the ground terminal; each group of ground components also includes a first copper nose and a threaded joint, and the first copper nose is connected to the same group. The wire clip is provided with an internal thread, and the threaded joint is fixed at one end of the short-circuit line of the same group, and is screwed with the internal thread of the first copper nose; the other end of the short-circuit line of each group of grounding components is respectively connected to the confluence clamp.

Further, the first copper nose includes a connecting arm and a threaded sleeve. The connecting arm includes an upper body and a lower body connected integrally, the angle between them is 120°-160°, and the upper body is provided with screw holes or The through hole is used to lock the first copper nose on the wire clamp with the screw; the thread is sleeved on the bottom of the lower body to be screwed with the threaded joint.

Further, the threaded joint includes a screw for screwing with the first copper nose and a crimping sleeve arranged coaxially with the screw, and one end of the short-circuit wire is crimped in the crimping sleeve.

Further, the ground terminal is a second copper lug.

Further, one end of the ground wire and the other end of each short-circuit wire are respectively crimped in the junction clip.

Further, the insulating operating rod is a telescopic rod body.

Further, the number of the grounding components is three groups.

Compared with the prior art, the utility model has the following beneficial effects:

The utility model connects the wire clip and the short-circuit wire by setting the first copper nose and the threaded joint, which is not only convenient for quick disassembly and carrying, but also can reduce the cumbersomeness of winding the short-circuit wire and the ground wire, thereby shortening the power transmission time and reducing downtime. The deviation of power transmission improves the reliability of power supply, and at the same time, it has the characteristics of being reliable and firm, and the conductive contact surface meets the requirements.

The utility model will be described in further detail below with reference to the accompanying drawings and embodiments; however, a detachable portable high-voltage ground wire of the utility model is not limited to the embodiments.

Description of drawings

Fig. 1 is a structural representation of the utility model (partial structural section);

Fig. 2 is the first copper nose of the present utility model and the exploded schematic diagram one of threaded joint (partial structural cross-sectional view);

Fig. 3 is the exploded schematic diagram two (partial structural section) of the first copper nose of the present utility model and threaded joint;

Fig. 4 is a schematic diagram of the connection between the second copper lug and the grounding wire of the present invention.

detailed description

For the embodiment, please refer to Fig. 1-Fig. 4, a detachable portable high-voltage grounding wire of the present invention includes three groups of grounding components, grounding wire 7, bus clamp 6, and grounding terminal, and each group of grounding components includes An insulated operating rod 1, a wire clamp 2 installed on the top of the insulating operating rod 1, and a short-circuit wire 5; one end of the grounding wire 7 is connected to the confluence clamp 6, and the other end is connected to the grounding terminal; each group of grounding components also includes a first copper nose 3 and Threaded joint 4, the first copper nose 3 is connected on the wire clamp 2 of the same group, and is provided with internal thread, and threaded joint 4 is fixed on one end of the short-circuit line 5 of the same group, and the internal thread of the first copper nose 3 spirally Cooperate; the other end of the short-circuit wire 5 of each group of grounding components is respectively connected to the bus clamp 6 .

In this embodiment, the first copper nose 3 includes a connecting arm 31 and a threaded sleeve 32, and the connecting arm 31 includes an integrally connected upper body 311 and a lower body 312, the angle between them is 120°-160°, Take a better value of 150°. The upper body 311 is provided with two screw holes (or it can also be a through hole, so that the first copper nose 3 can also be called a double eye copper nose), so as to lock the first copper nose 3 on the wire clamp 2 with the screw 9; The threaded sleeve 32 is arranged at the bottom of the lower body 312 to screw fit with the threaded joint 4 . The threaded joint 4 includes a screw rod 41 for screw fit with the first copper nose 3 and a crimping sleeve 42 coaxially arranged with the screw rod 41, and one end of the short-circuit line 5 is crimped on the crimping sleeve 42 middle. The depth of the threaded sleeve 32 is 30mm, the thread pitch is 1mm, the wall thickness is 1.5mm, and the diameter is 18mm; the length of the screw 41 is 30mm, and the diameter is 18mm; the wall thickness of the crimping sleeve 42 is 1.5mm, short The cross-sectional area of route 5 is 25 mm ² .

In this embodiment, the grounding terminal is the second copper nose 8, the structure of which is shown in Figure 4, specifically the single-eye copper nose. One end of the ground wire 7 and the other end of each short-circuit wire 5 are respectively crimped in the junction clip 6 . The insulating operating rod 1 is a telescopic rod body. The wire clamp 2 can be fixed or movable.

In this embodiment, the wire clamp 2 is formed by die-casting high-quality aluminum alloy; the insulating operating rod 1 is made of epoxy resin color tube, which has good insulation performance, high strength, light weight, bright color, and smooth appearance; the short-circuit wire 5 and the ground wire 7 are Annealed copper wire, made of multi-strands of high-quality annealed copper wire, and covered with a soft, high-temperature resistant transparent insulating sheath, which can prevent the wear of the grounding copper wire during use, and the copper wire meets the fatigue test requirements to ensure The safety of workers in operation.

When installing the grounding wire, separate the three short-circuit wires 5 into the first copper lug 3 and fix it on the corresponding position of the wire clip 2 on the insulating operating rod 1, and then fix the second copper lug 8 on the grounding clip or the ground pin. Constitute a complete set of grounding wires. When disassembling and sorting the grounding wires, separate the grounding wires from poles, separate the insulating operating rod 1 and the grounding wires for sorting and winding, and then put them into a dedicated grounding wire carrying bag.

The carrying bag is designed as a left and right double-pack structure, with an insulating operating rod 1 on the left and a bundled grounding wire on the right. At the same time, when there is a need for a long grounding wire, it can be crossed with other grounding wires to reduce the types of grounding wire configurations.

A detachable portable high-voltage grounding wire of the utility model has the following advantages over the existing traditional high-voltage grounding wire:

1. Easy to carry and improve work efficiency. When a portable grounding wire is needed, it can be disassembled and carried in the carrying bag without carrying it on the shoulder; when packing the grounding wire, it no longer needs three people to cooperate, only one person is required to operate, eliminating the time-consuming and labor-intensive phenomenon caused by improper coordination , greatly improving work efficiency.

2. Strong applicability, the insulating operation rod of the detachable portable high-voltage grounding wire and the grounding wire are threaded through the second copper nose and threaded joint. The second copper nose can be designed into a uniform model, and the long grounding wire is required When used, it can be cross-used with other grounding wires, reducing the configuration types of grounding wires, making it convenient to switch between grounding wires of different voltage levels and different lengths, and has strong applicability.

3. Good economic benefits. When an interval switch and line are powered off for maintenance, by using a detachable portable high-voltage grounding wire, installing and removing an interval grounding wire can save 15 minutes of operating time. When a bus is turned over for maintenance, if there are 4 intervals on the bus, one hour of power outage time can be saved. Taking State Grid Longyan Power Supply Company as an example, there are nearly 80 substations of 110kV and above, assuming that each substation shuts down an average of 4 buses every year. Then a total of 320 hours of outage time can be saved. If the average load current of the stopped bus is calculated as 800A, the electricity cost loss will be reduced by 400,000 yuan.

The above embodiments are only used to further illustrate a detachable portable high-voltage grounding wire of the present invention, but the present invention is not limited to the embodiments, and any simple modification made to the above embodiments according to the technical essence of the present invention , equivalent changes and modifications all fall within the protection scope of the technical solution of the utility model.

Claims (7)

1. a kind of dismountable portable high-pressure ground wire, including some groups of grounding assemblies, ground wires, conflux folder, ground terminal, Each group grounding assembly includes insulating bar, the conductor grip at the top of insulating bar, short-circuit line respectively；The one of ground wire End connection is confluxed folder, and the other end connects ground terminal；It is characterized in that：Each group grounding assembly respectively further comprise the first copper lug and Nipple, the first copper lug is connected in the conductor grip with group, and is provided with internal thread, and nipple is fixed on the short circuit with group One end of line, and with the internal thread threaded engagement of the first copper lug；The other end of the short-circuit line of each group grounding assembly is connected respectively Conflux folder.

2. dismountable portable high-pressure ground wire according to claim 1, it is characterised in that：The first copper lug bag Including linking arm and thread bush, linking arm includes the connected upper segment body and lower segment body of one, angle therebetween is 120 °- 160 °, and upper segment body is provided with screw or through hole, and the first copper lug is locked in conductor grip with attachment screw；Screw thread is set in down Segment body bottom, with the nipple threaded engagement.

3. dismountable portable high-pressure ground wire according to claim 1 and 2, it is characterised in that：The nipple Including for the screw rod with the first copper lug threaded engagement and with the screw coaxial set line ball set, the short-circuit line One end is crimped in line ball set.

4. dismountable portable high-pressure ground wire according to claim 1, it is characterised in that：The ground terminal is the Two copper lugs.

5. dismountable portable high-pressure ground wire according to claim 1, it is characterised in that：The one of the ground wire End, and the other end of each short-circuit line is crimped in the folder that confluxes respectively.

6. dismountable portable high-pressure ground wire according to claim 1, it is characterised in that：The insulating bar is The scalable body of rod.

7. dismountable portable high-pressure ground wire according to claim 1, it is characterised in that：The number of the grounding assembly Measure is three groups.