CN205583175U - Grounding -wire fixed apparatus - Google Patents
Grounding -wire fixed apparatus Download PDFInfo
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- CN205583175U CN205583175U CN201620394893.7U CN201620394893U CN205583175U CN 205583175 U CN205583175 U CN 205583175U CN 201620394893 U CN201620394893 U CN 201620394893U CN 205583175 U CN205583175 U CN 205583175U
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- Prior art keywords
- metal sleeve
- fixing device
- ground wire
- wire fixing
- metal
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Abstract
The utility model provides a grounding -wire fixed apparatus, it includes metal sleeve, and this metal sleeve one end is equipped with and fixes the binding post structure that the electricity is connected that cooperatees, and the surface that should be equipped with electric connection structure's metal sleeve one end is equipped with the insulating layer, and this metal sleeve is still including exposed metal part. The utility model discloses grounding -wire fixed apparatus is metal conducting material, through being provided with the structure that the electricity is connected that matches with fixed binding post, makes the electric tie point of fixing binding post extend out to set up the insulating layer, make its and the electrified parts on next door keep safe insulation, the earth connection chuck can direct centre gripping in this grounding -wire fixed apparatus's exposed metal part. The firm degree height of this kind of structrual installation, the installation is dismantled conveniently, the flexible operation, simple structure makes simply easy simultaneously.
Description
Technical field
This utility model relates to field of power distribution, refers in particular to a kind of low tension switch ground wire fixing device.
Background technology
Distribution low tension switch earth lead is one of the most frequently used Work tool of power supply station's distribution operation maintenance personnel, for
During low-voltage circuit interruption maintenance, by low tension switch leading-out terminal protective grounding, to ensure the people of field personnel
Body safety, protective grounding is: being exposed by the equipment that may present the voltage-to-ground of danger in case of a fault can
Current-carrying part carries out ground connection and is referred to as protective grounding, with the metal shell of electro-mechanical part phase-splitting insulation on electrical equipment,
Generally cause because of insulation damages or other reasons unexpected charged, easily cause accident of human electric shock, for ensureing
Personal safety, it is to avoid or the hazardness of reduction accident, frequently with protective grounding in electrical engineering.One group of low pressure
Switch earth lead is made up of fixing device part and earth lead part.The earth lead part knot of all earth leads
Structure is just as, and is made up of three-phase copper metal wire and fixed chuck, metal wire by wrapped with insulation with protect
Barrier safety, ground connection chuck has for earth lead is fixedly connected on on-the-spot earth rod or ground connection busbar above formula device
Effect ground connection.At present on the market, have three kinds of low-voltage grounding wire fixture structures optional, including Direct rotating type,
Flat rotating and jaw type, three kinds of fixing devices utilize its metal clip head, earth lead are fixedly mounted on low pressure
The terminals metal position of switch lower end, the earth lead being connected on metal collet forms ground protection system
System.The low-voltage grounding wire that power supply station commonly uses at present is jaw type, is carrying out low pressure service work protective grounding
During operation, the exposed metal/bare metal position that jaw type low-voltage grounding wire is directly sandwiched in low tension switch leading-out terminal is installed fixing.
According to regulation, main mother in standard " GB7251.1-2005 low-voltage complete switch equipment and control equipment "
Electricity between line, vertical bus, denominator line and main circuit switch charging member and between grounded metal part
Gas gap should be not less than between 20mm, i.e. 0.4KV panel switches charging equipment and grounding apparatus should ensure that to
The safe distance of few 2cm.Simultaneously as the present high request to power supply reliability, when after distribution low tension switch
When section circuit needs upkeep operation, we may only have a power failure to needing repair line way switch, but can not disconnect
Other switch adjacent being in same power distribution cabinet with operation switch, so, other adjacent switch leading-out terminal is just
It is in electriferous state.But in real work, the adjacent low-pressure line-outgoing switching space in electricity room low-voltage cabinet is past
Toward the least, limited by space in low-voltage cabinet, also actually be difficult to all be clipped in low tension switch three-phase and go out
Ensure and the safe distance between adjacent outlet switch outlet terminal while in line terminals,
Therefore it provides a kind of can effectively separate earthed switch and adjacent belts electric switch, safe and reliable
Low tension switch ground wire fixing device is the most necessary.
Summary of the invention
Based on this, this utility model is to provide a kind of safe and reliable ground wire fixing device.
Its technical scheme is as follows:
This utility model provides a kind of ground wire fixing device, and it includes metal sleeve, this metal sleeve one end
Being provided with the structure of the electrical connection that matches with link terminal, this is provided with metal sleeve one end of electric connection structure
Outer surface be provided with insulating barrier, this metal sleeve also includes bare metal part.
This utility model ground wire fixing device is conductive metal material, is provided by and link terminal
Match the structure electrically connected, and makes the contact point of the electrical connection of link terminal extend out, and arranges
Insulating barrier so that it is keeping safe insulation with the charging member on side, earth lead chuck can be clamped directly at this
The bare metal part of ground wire fixing device.It is high that this structure installs soundness, easy installation and removal,
Flexible operation, simultaneously simple in construction, it is simple easy to make.
Below further technical scheme is illustrated:
Better embodiment, this metal sleeve one end match with link terminal electrical connection structure be to set
Put the female thread in this metal sleeve one end.As long as this ground wire fixing device is screwed under low tension switch
On the bolt of terminated line terminal, then the low voltage three-phase earthing clamp head clamping completing ground connection is fixed on this
The bare metal part of ground wire fixing device, install i.e. complete, operate the most simple and convenient fast, and
Can effectively and side charging member keep safe insulation.
As replaceable embodiment, match the knot electrically connected with link terminal in this metal sleeve one end
Structure can also is that the detonation configuration that coordinate urgent with link terminal, can be by direct for this ground wire fixing device
It is plugged on the bolt of low tension switch lower end binding post, swift and convenient to operate.
Better embodiment, the outer surface of this metal sleeve other end also is provided with insulating barrier, as insulation handle,
This metal sleeve interlude is bare metal part.This structure is convenient to hand-held, and can be by
Ground wire fixing device is installed by instrument.
Better embodiment, this metal sleeve uses brass material, good conductivity, good corrosion resistance, intensity
Greatly.
Better embodiment, the insulating barrier set by this metal sleeve is rubber, has good insulating, more
Durable non-damageable advantage.
Better embodiment, the surface of the bare metal part of this metal sleeve is provided with anti-slip veins.This anti-slip veins
Structure can increase after low-voltage grounding wire is installed the bare metal part of metal collet and ground wire fixing device it
Between frictional force, prevent from coming off, be effectively improved installation soundness.
Better embodiment, this anti-slip veins is rhombus anti-slip veins, or concavo-convex anti-slip veins, or salient point anti-slip veins,
Or twill anti-slip veins, or the anti-slip veins of other pattern forms, embodiment is not restricted.
Better embodiment, the bare metal structure length of this metal sleeve is 3.5cm, it is sufficient to be convenient to ground connection
Line metal collet is installed.
Better embodiment, the insulation handle length of this metal sleeve is 5.5cm, facilitates hand-held.
Below the principle of preceding solution, effect etc. are illustrated:
This utility model ground wire fixing device is conductive metal material, is provided by and link terminal
Match the structure electrically connected, and makes the contact that is electrically connected of link terminal extend out, and arranges insulating barrier,
Making it keep safe insulation with the charging member on side, it is solid that earth lead chuck can be clamped directly at this earth lead
Determine the bare metal part of device.It is high that this structure installs soundness, and light weight, simple in construction are easy to carry,
Easy installation and removal, flexible operation, simultaneously simple in construction, it is simple easy to make.
In-site installation low-voltage grounding wire, is first connected on low tension switch lower end terminals by this ground wire fixing device
On the bolt of son, then the low voltage three-phase earth lead chuck completing ground connection is fixedly clamped successively at device gold
Belong to exposed conducting position, install and i.e. complete.The lifting effect highly significant that on-the-spot low-voltage grounding wire is installed,
After using this utility model ground wire fixing device, completely solve on-the-spot low-voltage grounding wire because of mounting distance not
The problem that foot cannot be installed safely, effectively prevents field operation personnel from making earth lead metal position because of insufficient space
Or self encounter side apart from close charging equipment by mistake, largely reduce the work of field operation personnel
Industry security risk.
Use this ground wire fixing device can be effectively improved the firmness that low-voltage grounding wire is installed, the most anti-
Only in operation process, earth lead surprisingly comes off the risk caused.Operating personnel uses this ground wire fixing device to pacify
Attaching ground wire faster and more convenient operation, is effectively increased work efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model ground wire fixing device；
Fig. 2 is the structural representation of female thread one end of this utility model ground wire fixing device；
Fig. 3 is the installation front schematic view of this utility model ground wire fixing device；
Fig. 4 is the seating side view of this utility model ground wire fixing device；
Fig. 5 is the installation top view of this utility model ground wire fixing device.
Description of reference numerals:
Metal sleeve 100, bare metal part 200, insulating barrier 300, female thread 400, earth lead chuck
500, binding post 600.
Detailed description of the invention
Below embodiment of the present utility model is described in detail:
Referring to Fig. 1～Fig. 5, this utility model ground wire fixing device includes metal sleeve 100, this metallic sheath
Cylinder 100 one end are provided with the female thread 400 of the electrical connection that matches with link terminal, these metal sleeve two ends
Outer surface is respectively equipped with insulating barrier 300, and this metal sleeve interlude has bare metal part 200.As long as should
Ground wire fixing device is screwed on the bolt of low tension switch lower end binding post 600, then will complete
The low voltage three-phase earth lead chuck 500 of ground connection is fixedly clamped in the bare metal part of this ground wire fixing device,
Install i.e. complete, operate the most simple and convenient fast, and can effectively and side charging member holding pacify
All insulation.
This utility model ground wire fixing device is conductive metal material, is provided by and link terminal
Match female thread 400 structure electrically connected, and makes the contact point of the electrical connection of link terminal extend out,
And insulating barrier 300 is set so that it is keeping safe insulation with the charging member on side, earth lead chuck can be straight
Connect the bare metal part 200 being clamped in this ground wire fixing device.It is high that this structure installs soundness, peace
Dress convenient disassembly, flexible operation, simultaneously simple in construction, it is simple easy to make.
In the present embodiment, this metal sleeve 100 uses brass material, good conductivity, good corrosion resistance, by force
Degree is big.
In the present embodiment, the insulating barrier 300 set by this metal sleeve is rubber, has good insulating, more
Add durable non-damageable advantage.
In the present embodiment, the surface of the bare metal part 200 of this metal sleeve is provided with rhombus anti-slip veins.Should
Anti-slip veins structure can increase metal collet and the bare metal of ground wire fixing device after low-voltage grounding wire is installed
Frictional force between part, prevents from coming off, and is effectively improved installation soundness.This anti-slip veins can also is that recessed
Convex anti-slip veins, or salient point anti-slip veins, or twill anti-slip veins, or the anti-slip veins of other pattern forms, implement
Example is not restricted.
In the present embodiment, the bare metal structure length of this metal sleeve is 3.5cm, the insulation of this metal sleeve
Handle length is 5.5cm.As seen in figures 3-5, after using the present embodiment ground wire fixing device, grounding parts
Divide distance b1 in three directions, b2, b3 between the band electric switch of side all big than the earthing mode of prior art
Big increase, safety is greatly improved.
Embodiment described above only have expressed detailed description of the invention of the present utility model, its describe more concrete and
In detail, but therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that,
For the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to
Making some deformation and improvement, these broadly fall into protection domain of the present utility model.
Claims (9)
1. a ground wire fixing device, it is characterised in that it includes metal sleeve, this metal sleeve one end
Being provided with the structure of the electrical connection that matches with link terminal, this is provided with metal sleeve one end of electric connection structure
Outer surface be provided with insulating barrier, this metal sleeve also includes bare metal part.
Ground wire fixing device the most according to claim 1, it is characterised in that this metal sleeve one end with
The match structure of electrical connection of link terminal is provided in the female thread of this metal sleeve one end, or this gold
Matching with link terminal in genus sleeve one end, the structure electrically connected is urgent with link terminal to be coordinated
Detonation configuration.
Ground wire fixing device the most according to claim 1 or claim 2, it is characterised in that this metal sleeve is another
The outer surface of one end also is provided with insulating barrier, and as insulation handle, this metal sleeve interlude is bare metal portion
Point.
Ground wire fixing device the most according to claim 1 or claim 2, it is characterised in that this metal sleeve is adopted
Use brass material.
Ground wire fixing device the most according to claim 1 or claim 2, it is characterised in that this metal sleeve institute
The insulating barrier arranged is rubber.
Ground wire fixing device the most according to claim 3, it is characterised in that this metal sleeve exposed
The surface of metal part is provided with anti-slip veins.
Ground wire fixing device the most according to claim 6, it is characterised in that this anti-slip veins is that rhombus is prevented
Sliding stricture of vagina, or concavo-convex anti-slip veins, or salient point anti-slip veins, or twill anti-slip veins.
Ground wire fixing device the most according to claim 3, it is characterised in that this metal sleeve exposed
The a length of 3.5cm of metal structure.
Ground wire fixing device the most according to claim 3, it is characterised in that the insulation of this metal sleeve
Handle length is 5.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620394893.7U CN205583175U (en) | 2016-05-03 | 2016-05-03 | Grounding -wire fixed apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620394893.7U CN205583175U (en) | 2016-05-03 | 2016-05-03 | Grounding -wire fixed apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205583175U true CN205583175U (en) | 2016-09-14 |
Family
ID=56859736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620394893.7U Active CN205583175U (en) | 2016-05-03 | 2016-05-03 | Grounding -wire fixed apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205583175U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112134035A (en) * | 2020-08-06 | 2020-12-25 | 广东电网有限责任公司广州供电局 | Grounding downlead and grounding system |
| CN112599989A (en) * | 2020-11-20 | 2021-04-02 | 国家电网有限公司 | Novel safety leakage protector |
-
2016
- 2016-05-03 CN CN201620394893.7U patent/CN205583175U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112134035A (en) * | 2020-08-06 | 2020-12-25 | 广东电网有限责任公司广州供电局 | Grounding downlead and grounding system |
| CN112599989A (en) * | 2020-11-20 | 2021-04-02 | 国家电网有限公司 | Novel safety leakage protector |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |