CN118352202A - Drop-out fuse shielding cover for ground potential live working and working method thereof - Google Patents
Drop-out fuse shielding cover for ground potential live working and working method thereof Download PDFInfo
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- CN118352202A CN118352202A CN202410493453.6A CN202410493453A CN118352202A CN 118352202 A CN118352202 A CN 118352202A CN 202410493453 A CN202410493453 A CN 202410493453A CN 118352202 A CN118352202 A CN 118352202A
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- out fuse
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000010276 construction Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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Abstract
The invention belongs to the technical field of live working, and provides a drop-out fuse shielding cover for ground potential live working and a working method thereof, wherein the drop-out fuse shielding cover comprises a shielding body and an elastic buckle arranged on the inner wall of the shielding body; the elastic buckle comprises a connecting plate fixed on the shielding body, and a first elastic plate and a second elastic plate which are symmetrically arranged on two sides of the connecting plate; the drop-out fuse can be directly clamped through the elasticity of the first elastic plate and the second elastic plate, the whole shielding cover can be quickly fixed on the drop-out fuse, and compared with a traditional fixing mode, the operation mode is simple, and the working efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of live working, and particularly relates to a drop-out fuse shielding cover for ground potential live working and a working method thereof.
Background
Drop-out fuses are common 10kV overhead line equipment, and are commonly used as a 10kV switch in customer demarcations, transformer stations and small branch lines. With the continuous improvement of the power supply reliability, live working modes are often adopted when user access, equipment overhaul and other works are carried out. Drop-out fuses are often encountered when conducting operations such as live connection of the upper leads of the fuses to ground potential. At present, no proper ground potential shielding tool is used for insulating and shielding the fuse, so that the operation risk is increased, and meanwhile, in order to ensure the safety, operators can only use a longer insulating operation rod to carry out the operation, and the operation difficulty is increased.
The inventor finds that in the traditional insulating shielding cover structure, the fuse is fixed by utilizing a mode of clamping the fuse by arranging a notch on the plugboard, and the fixing mode is complex and is not beneficial to operation; in the insulating shielding cover structure, the through kerf is firstly opened by the clamping head, then the shielding object is placed in the insulating shielding cover with the opening, then the clamping head is removed, the opened cover body is restored under the elastic action of the cover body, the purpose of covering the shielding object is realized, the fixing mode needs the matching of the clamping head and the like, and the problems of complex fixing mode, complex operation and the like exist; in addition, the existing insulating shielding cover is single in type, and cannot balance operation difficulty and fixing stability, so that problems such as difficult installation or poor fixing stability are caused.
Disclosure of Invention
In order to solve the problems, the invention provides the drop-out fuse shielding cover for the live working of the ground potential and the working method thereof, wherein the elasticity of the first elastic plate and the second elastic plate in the elastic buckle can be used for directly clamping the drop-out fuse, so that the whole shielding cover can be quickly fixed on the drop-out fuse.
In order to achieve the above object, in a first aspect, the present invention provides a drop-out fuse shielding cover for live working at ground potential, which adopts the following technical scheme:
a drop-out fuse shielding cover for ground potential live working comprises a shielding body and an elastic buckle arranged on the inner wall of the shielding body;
The elastic buckle comprises a connecting plate fixed on the shielding body, and a first elastic plate and a second elastic plate which are symmetrically arranged on two sides of the connecting plate; the first elastic plate and the second elastic plate are used for directly clamping the drop-out fuse, and the shielding cover is fixed on the drop-out fuse.
Further, the first elastic plate and the second elastic plate both comprise a clamping plate and a guide plate; the guide plate is arranged obliquely outwards relative to the connecting plate.
Further, the shielding cover is classified into various types according to the distance between the first elastic plate and the second elastic plate; the type of the shield is determined according to the length of the insulating rod, the weight of the shield and the wind level of the construction day.
Further, the length of the insulating rod, the weight of the shielding cover and the wind level of the construction day are weighted and summed to obtain a selected reference value; and determining the type of using the shielding cover according to the comparison of the selected reference value and the preset range.
Further, the shielding body comprises a water level plate fixed with the connecting plate, and a first side plate and a second side plate which are vertically arranged at two ends of the horizontal plate; the first elastic plate and the second elastic plate are respectively connected with the end parts of the first side plate and the second side plate, which are far away from the horizontal plate.
Further, the shielding body is a groove body; an insulating rod connecting piece is arranged on the outer wall of the shielding body.
Further, the two ends of the shielding body are respectively provided with a shield.
Further, an arc-shaped groove is formed in the shield; the two shields are respectively provided with a first lead baffle and a second lead baffle.
Further, the first lead baffle and the second lead baffle are all arranged to be arc-shaped plates with the radian and the arc-shaped grooves.
In order to achieve the above purpose, the second aspect of the present invention further provides a working method of a drop-out fuse shielding cover for live working at a ground potential, which adopts the following technical scheme:
The working method of the drop-out fuse shield for ground potential live working, which adopts the drop-out fuse shield for ground potential live working described in the first aspect, comprises the following steps: the first elastic plate and the second elastic plate are used for directly clamping the drop-out fuse, and the shielding cover is fixed on the drop-out fuse.
Compared with the prior art, the invention has the beneficial effects that:
1. The inner wall of the shielding body is provided with an elastic buckle, and the elastic buckle comprises a connecting plate fixed on the shielding body, and a first elastic plate and a second elastic plate which are symmetrically arranged on two sides of the connecting plate; the drop-out fuse can be directly clamped through the elasticity of the first elastic plate and the second elastic plate, so that the whole shielding cover can be quickly fixed on the drop-out fuse, and compared with a traditional fixing mode, the operation mode is simple, and the working efficiency is improved;
2. In the invention, the shielding cover is divided into a plurality of types according to the distance between the first elastic plate and the second elastic plate; the type of the shield is determined according to the length of the insulating rod, the weight of the shield and the wind level of the construction day. The length of the insulating rod, the weight of the shielding cover and the wind level of the current construction day are weighted and summed to obtain a selected reference value; determining the type of using the shielding cover according to the comparison between the selected reference value and the preset range; the problems that the insulating shielding cover is single in type and cannot balance operation difficulty and fixing stability are solved, and on the basis of clamping stability, the difficulty of field operation can be reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification, illustrate and explain the embodiments and together with the description serve to explain the embodiments.
FIG. 1 is a view showing the overall structure of embodiment 1 of the present invention;
FIG. 2 is a schematic view of an elastic buckle according to embodiment 1 of the present invention;
FIG. 3 is a side view of the overall structure of embodiment 1 of the present invention;
FIG. 4 is a top view showing the overall structure of embodiment 1 of the present invention;
FIG. 5 is a schematic view showing the use state of embodiment 1 of the present invention;
Wherein, 1, a shielding body; 2. an elastic buckle; 21. a connecting plate; 22. a first elastic plate; 2201. a clamping plate; 2202. a guide plate; 23. a second elastic plate; 3. an insulating rod connector; 4. a shield; 5. a first lead shield; 6. a second lead shield; 7. a drop-out fuse.
Detailed Description
The invention will be further described with reference to the drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
Live working: live working refers to a working method for overhauling and testing high-voltage electrical equipment without power failure.
Ground potential: the operator can climb the electric pole to reach the designated position and use the insulating operation pole to carry out live working.
Drop-out fuse shield: the exposed electrified part of the fuse is insulated and shielded, so that the safety of personnel in the operation process is ensured.
Example 1:
In the traditional insulating shielding cover structure, a slot opening on a plugboard is utilized to clamp a fuse for fixing, or structures such as a clamp head are utilized for fixing, specifically, for example, the clamp head firstly opens a through cutting joint, then places a shielding object into an insulating shielding cover with an opening, then removes the clamp head, and the unfolded cover body returns under the elastic action of the cover body, so that the purpose of covering the shielding object is realized; the two fixing modes have the problems of complex structure, complex operation and the like. In view of the above problems, as shown in fig. 1,2,3, 4 and 5, the present embodiment provides a drop-out fuse shielding cover for live working at ground potential, which includes a shielding body 1 and an elastic buckle 2 disposed on an inner wall of the shielding body 1;
The elastic buckle 2 comprises a connecting plate 21 fixed on the shielding body 1, and a first elastic plate 22 and a second elastic plate 23 symmetrically arranged on two sides of the connecting plate 21.
The first elastic plate 22 and the second elastic plate 23 are directly clamped with the drop-out fuse 7 through elasticity, so that the whole shielding cover is quickly fixed on the drop-out fuse 7.
Optionally, the shielding body 1 is an insulator such as rubber, plastic and the like; the shielding body 1 can be provided with a rectangular groove body or an arc groove body and other structures, and can wrap the drop-out fuse 7 in three directions; the inner wall of the shielding body 1 is the side surface close to the drop-out fuse 7 when shielding. The connecting plate 21 can be connected with the inner wall of the shielding body 1 through bolt connection, glue bonding or the like; the connection plate 21, the first elastic plate 22, and the second elastic plate 23 are also provided as insulators.
In this embodiment, the first elastic plate 22 and the second elastic plate 23 each include a clamping plate 2201 and a guide plate 2202; the guide plate 2202 is arranged obliquely outwards relative to the connecting plate, so that the drop-out fuse 7 can be clamped into the elastic buckle 2, and meanwhile the risk that the drop-out fuse 7 is separated from the elastic buckle 2 is reduced.
The existing insulating shielding cover is single in type, cannot balance the influences of operation difficulty, fixing stability and the like, and causes the problems of difficult installation or poor fixing stability and the like; in view of the above, in the present embodiment, as shown in table 1, the shield cover is classified into a plurality of types according to the distance w between the first elastic plate 22 and the second elastic plate 23; it will be appreciated that the distance w between the first and second elastic plates 22, 23 can affect the stability of the grip and the difficulty of the operation. For example, the distance w between the first elastic plate 22 and the second elastic plate 23 is selected to be larger, so that the shielding cover is relatively easy to be clamped onto the drop-out fuse when the insulating rod is used for clamping, but the distance w between the first elastic plate 22 and the second elastic plate 23 is selected to be too large, so that the shielding cover is easy to fall off due to insufficient holding force although the operation is convenient. For another example, the distance w between the first elastic plate 22 and the second elastic plate 23 is smaller, so that the stability is good, the holding force is large, and the problem that the shielding cover falls off is not easy to occur; however, if the distance w between the first elastic plate 22 and the second elastic plate 23 is too small, a large force is required to engage the shielding cover with the drop-out fuse when the shielding cover is clamped by the insulating rod, which is inconvenient to operate.
In order to solve the balance problem between the operation difficulty and the fixing stability, in this embodiment, the type of using the shielding cover is determined according to the length D of the insulating rod, the weight G of the shielding cover, and the wind level F of the day of construction.
It can be understood that the larger the length D of the insulating rod is, the better the sight is, the force application is convenient, and the smaller the length D of the insulating rod can be allowed to be selected, so as to ensure the installation stability of the shielding cover; conversely, the smaller the length D of the insulating rod, the worse the line of sight, the more convenient the application of force, allowing the selection of the type with a greater length D of the insulating rod, so as to guarantee the ease of installation of the shielding cover.
Particularly, when considering the installation convenience, the type of the insulation rod with a larger length D cannot be selected without limitation because the weight G of the shielding cover and the requirement of the wind level F on the construction day on the clamping stability are also considered.
In view of the above, in this embodiment, the selection reference value X is obtained by performing weighted summation on the length D of the insulating rod, the weight G of the shielding cover, and the current wind level F on the construction day; determining the type of using the shielding cover according to the comparison between the selected reference value and the preset range; the larger the reference value X, the smaller the corresponding distance w. Optionally:
X＝γD+βG+δF
Wherein γ, β, and δ are weights. The weight and the preset range can be set in advance or adjusted according to actual conditions, historical data, experiments and the like.
The type of shadow mask of fig. 1
Specifically, the shielding body 1 includes a water plane plate fixed with the connecting plate 21, and a first side plate and a second side plate vertically arranged at two ends of the horizontal plate, wherein an elastic space formed by the water plane plate, the first side plate and the second side plate is used for accommodating the drop-out fuse 7; the first elastic plate 22 and the second elastic plate 23 are respectively connected with the ends of the first side plate and the second side plate, which are far away from the horizontal plate.
An insulating rod connecting piece 3 can be arranged on the outer wall of the shielding body 1, a connecting hole can be formed in the insulating rod connecting piece 3, a universal gun shooting operating rod can be adopted for the insulating rod, and the gun shooting operating rod is connected with the insulating rod connecting piece 3 through the connecting hole, so that the universal gun shooting operating rod is used, the drop-out fuse 7 and upper and lower pile heads thereof are conveniently and safely shielded, the safety of operators is improved, and personal, power grid and equipment injuries caused by the fact that the fuse is not shielded and a live body is exposed in the ground potential operation process are avoided; the insulating rod connection 3 and the insulating rod can also be realized with other conventional components, which are not described in detail here.
Specifically, the staff can send the shielding cover to the drop-out fuse 7 by means of the insulating rod, and the elastic buckle 2 is used for rapidly clamping the shielding cover on the drop-out fuse 7.
The two ends of the shielding body 1 are respectively provided with a shield 4 for shielding the upper pile head, the lower pile head and the exposed wires of the drop-out fuse 7; optionally, an arc groove is formed in the shield 4, a first lead baffle 5 and a second lead baffle 6 are respectively arranged on the two shields, and the first lead baffle 5 and the second lead baffle 6 are all arc plates with the arc shape and the arc groove are all arc-shaped plates for shielding leads.
When the shielding cover in the embodiment is used, a worker sends the shielding cover to the position of the drop-out fuse 7 to be shielded by means of the insulating rod, and applies force to the shielding body 1 by means of the insulating rod, so that the elastic buckle 2 is clamped on the drop-out fuse 7, and the shielding cover is mounted.
Example 2:
The present embodiment provides a working method of a drop-out fuse shielding cover for live working at ground potential, which adopts the drop-out fuse shielding cover for live working at ground potential as described in embodiment 1, comprising: the first elastic plate and the second elastic plate are used for directly clamping the drop-out fuse, and the shielding cover is fixed on the drop-out fuse.
The above description is only a preferred embodiment of the present embodiment, and is not intended to limit the present embodiment, and various modifications and variations can be made to the present embodiment by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present embodiment should be included in the protection scope of the present embodiment.
Claims (10)
1. The drop-out fuse shielding cover for the live working of the ground potential is characterized by comprising a shielding body and an elastic buckle arranged on the inner wall of the shielding body;
The elastic buckle comprises a connecting plate fixed on the shielding body, and a first elastic plate and a second elastic plate which are symmetrically arranged on two sides of the connecting plate; the first elastic plate and the second elastic plate are used for directly clamping the drop-out fuse, and the shielding cover is fixed on the drop-out fuse.
2. The drop-out fuse shield for ground potential live working of claim 1, wherein the first elastic plate and the second elastic plate each comprise a clamping plate and a guide plate; the guide plate is arranged obliquely outwards relative to the connecting plate.
3. The drop-out fuse shield for ground potential live working of claim 1, wherein the shield is classified into a plurality of types according to a distance between the first elastic plate and the second elastic plate; the type of the shield is determined according to the length of the insulating rod, the weight of the shield and the wind level of the construction day.
4. A drop-out fuse shield for ground potential live working as defined in claim 3, wherein the selected reference value is obtained by weighted summation of the length of the insulating rod, the weight of the shield and the current wind level of the construction; and determining the type of using the shielding cover according to the comparison of the selected reference value and the preset range.
5. The drop-out fuse shield for ground potential live working of claim 1, wherein the shield comprises a water plate fixed to the connection plate, and a first side plate and a second side plate vertically disposed at both ends of the horizontal plate; the first elastic plate and the second elastic plate are respectively connected with the end parts of the first side plate and the second side plate, which are far away from the horizontal plate.
6. The drop-out fuse shield for ground potential live working of claim 1, wherein the shield is a trough; an insulating rod connecting piece is arranged on the outer wall of the shielding body.
7. The drop-out fuse shield for ground potential live working of claim 1, wherein shields are provided at both ends of the shield, respectively.
8. The drop-out fuse shield for live working at ground potential of claim 7, wherein the shield is provided with an arcuate slot; the two shields are respectively provided with a first lead baffle and a second lead baffle.
9. The drop-out fuse shield for ground potential hot-line work of claim 8, wherein the first lead baffle and the second lead baffle are each configured as an arcuate plate having an arc shape that is substantially perpendicular to the arcuate slot.
10. A method for operating a drop-out fuse shield for live working at ground potential, characterized in that the drop-out fuse shield for live working at ground potential according to any one of claims 1 to 9 is employed, comprising: the first elastic plate and the second elastic plate are used for directly clamping the drop-out fuse, and the shielding cover is fixed on the drop-out fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410493453.6A CN118352202A (en) | 2024-04-23 | 2024-04-23 | Drop-out fuse shielding cover for ground potential live working and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410493453.6A CN118352202A (en) | 2024-04-23 | 2024-04-23 | Drop-out fuse shielding cover for ground potential live working and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118352202A true CN118352202A (en) | 2024-07-16 |
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ID=91811726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410493453.6A Pending CN118352202A (en) | 2024-04-23 | 2024-04-23 | Drop-out fuse shielding cover for ground potential live working and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118352202A (en) |
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2024
- 2024-04-23 CN CN202410493453.6A patent/CN118352202A/en active Pending
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