CN209401869U - A kind of improvements in security structure of ground line - Google Patents
A kind of improvements in security structure of ground line Download PDFInfo
- Publication number
- CN209401869U CN209401869U CN201822154690.2U CN201822154690U CN209401869U CN 209401869 U CN209401869 U CN 209401869U CN 201822154690 U CN201822154690 U CN 201822154690U CN 209401869 U CN209401869 U CN 209401869U
- Authority
- CN
- China
- Prior art keywords
- ground line
- insulating bar
- cable core
- gib head
- security structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010276 construction Methods 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 20
- 210000000481 breast Anatomy 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 description 24
- 210000003128 head Anatomy 0.000 description 19
- 230000001681 protective effect Effects 0.000 description 11
- 230000007935 neutral effect Effects 0.000 description 10
- 238000012360 testing method Methods 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000012795 verification Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000002650 habitual effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 210000000162 simple eye Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The utility model discloses a kind of improvements in security structures of ground line, insulating bar including inner hollow, the gib head for being fixed on insulating bar top, the cable core for being connected to gib head bottom and being located in insulating bar hollow cavity and connects with cable core and the ground line outside insulating bar.The utility model is structurally reasonable, easy to use, is directly penetrated out of insulating bar with the copper wire of the insulating layer with pressure-resistant 15kV or more, and one end and hook connect, and the other end is connect with the copper wire at three-phase short circuit.Since fulcrum force is changed when installing, stress point is transferred to hand from the gib head at the top of insulating bar, rapid operation when connecting charging equipment, even if operating personnel holds insulating bar in bosom, human body is also constantly in safe condition, improves the security reliability and working efficiency of work of connecting wires.
Description
Technical field
The utility model relates to distribution network construction technical fields, and in particular to a kind of improvements in security structure of ground line.
Background technique
Ground line is exactly the line for being directly connected to the earth, is referred to as safety return circuit line, it is just direct high pressure when dangerous
The earth is imputed to, at last a lifeline.In power construction, service work, in order to ensure the safety constructed and overhauled, ground connection
The installation of line is an essential important process project.It is grounded in the power system: being in order in the equipment having had a power failure
With the important tool for guaranteeing staff when unexpectedly occurring voltage on route.Ground line is exactly to connect in portions such as electrical appliance enclosures
Position is timely by route derived from the unsafe charge or leakage current that generate by a variety of causes.
High-voltage grounding wire is to close on to guarantee that safety is used when electrical body generates electrostatic induction electric shock or false switching in order to prevent.
High-voltage grounding wire generally comprises conductor grip, short-circuit line, ground line, the auspicious son of ground connection, confluence folder and earth clip.High-voltage connecting
The operation stick of ground wire uses epoxy resin color tube, and good insulation preformance, intensity is high, light-weight, in bright gay color, smooth in appearance；It connects
Ground annealed copper wire is twisted using multiply high quality soft copper wire, and overcoating soft, transparent insulation layer resistant to high temperature, can prevent from making
To the abrasion of grounded copper wire in, copper wire reaches fatigue strength testing requirement, it is ensured that operating personnel's safety in operation.
The component part of earthing mode can be divided into electrical equipment and distribution system two parts.
1. the grounded part of electrical equipment
(1) grounding body: being in close contact with the earth and one or a set of conductor of electrical connection is formed with the earth.
(2) exposed conductive part: the conductive part that electrical equipment can touch.Not charged when normal, when failure, may
It charges, usually the metal shell of electrical equipment.
(3) main ground terminal daughter board: various ground connection (such as working earthing, protective grounding) in a building or part building
Terminal and bonding wire terminal combination.Such as arranged in rows, then referred to as main grounding terminal block.
(4) protective wire (PE): by above-mentioned exposed conductive part, main ground terminal daughter board, grounding body and power ground point
(or artificial earthing's point) any part makees the conductor being electrically connected.Conductor for connecting multiple exposed conductive parts is known as protecting
Protect main line.
(5) it is grounded: being directly connected to the protective wire of grounding body by main ground terminal daughter board or by exposed conductive part.For
The ground line for connecting multiple ground terminal daughter boards is known as being grounded main line.
(6) equipotential link: refer to the electricity that the current potential of each exposed conductive part and the outer current-carrying part of device is substantially equal
Gas connection.
2. the grounded part of distribution system
(1) phase line (L).The conductor of electric energy is conveyed, it is earth-free under normal circumstances.
(2) neutral conductor (N).It is connected with system neutral, and the conductor of conveying electric energy effect can be played.
(3) neutral conductor (PEN) is protected.Have the conductor of protective wire and neutral conductor effect concurrently.
(4) power ground point.A bit (the usually neutral point) that power supply can be grounded is grounded.
The earthing mode of China's distribution system provides that classification is still with distribution system and electrical equipment using IEC
Ground connection combine to divide, be generally divided into TN, TT, IT system etc..The meaning that above-mentioned letter indicates: first letter indicates that power supply connects
The relationship of place over the ground.Wherein T expression is directly grounded；I indicates earth-free or passes through impedance earth.Second letter indicates electrical
The exposed conductive part and ground relationship of equipment.Wherein T indicates to be directly grounded with connectionless independent of power ground point；N is indicated
Directly it is connect with power-supply system grounding point or the conductor drawn with the point.
The case where whether being merged according to the neutral conductor with protective wire, TN system are divided into TN-C, TN-S and TN-C-S system again
System.TN-C system: protective wire and the neutral conductor merge into protective earthing-neutral conductor.TN-S system: protective wire is separated with the neutral conductor.TN-C-S system
System: protective earthing-neutral conductor is merged into the protective wire and the neutral conductor of close one section of source side, is divided into protective wire and the neutral conductor after certain point.
High voltage short circuit is grounded the quality that resistance requirement over the ground determines ground line, generally according to power industry DL-T879-
2004 technical stipulations require the ground line of each sectional area to ground resistance not be greater than following numerical value:
D.C. resistance is measured between Wiring nose, for 16mm2,25mm2,35mm2,50mm2,70mm2,95mm2,120mm2
Various sections, average every meter of resistance value should be respectively smaller than 1.24m Ω, 0.79m Ω, 0.56m Ω, 0.40m Ω, 0.28m Ω,
0.21m Ω, 0.16m Ω.
High-voltage grounding wire classification:
(1) high-voltage grounding wire can be divided into according to use environment: indoor master-row type ground line (JDX-NL) and outdoor route
Type is grounded (JDX-WS).(2) high-voltage grounding wire can be divided into according to voltage class: 10kV ground line, 35kV high-voltage grounding wire,
110kV ground line, 220kV high-voltage grounding wire, 500kV high-voltage grounding wire
(1) 10kV high-voltage grounding wire insulating bar partial-length: the handshake part 700mm length: 300mm metal joint part is long
Degree: 50mm joint number: 1 bar diameter: 30mm overall length (not including wire clamp): 1050mm
(2) 35kV is grounded nominal section: the total radical of 25mm2: 810 average diameters (mm): 0.2mm calculates section:
(mm2): 25.43 metal joint partial-lengths: 50mm joint number: 1 bar diameter: 30mm
(3) 110kV high-voltage grounding wire nominal section: the total radical of 35mm2: 1136 average diameters (mm): 0.2mm, which is calculated, to be cut
Face: (mm2): 35.67 insulating bar partial-lengths: the handshake part 1360mm length: 700mm metal joint partial-length: 140mm section
Number: 2 bar diameters: 30mm overall length (not including wire clamp): 2200mm
(1) when hanging earthing conductor: first linking earth clip, be followed by connecing electric folder；When removing ground line, it is necessary to first disconnect electricity by program
Folder, after tear earth clip open.
(2) it installs: the electricity folder that connects that eyes copper lug in annealed copper wire split-phase is fixed on grounding rod will be grounded and (connect electricity to accompany admittedly
Fixed pattern and movable) on corresponding position, simple eye copper lug that ground line closes in phase is fixed on earth clip or ground needle, constitutes one
The complete ground line of set.
(3) whether the voltage class for verifying grounding rod is consistent with the voltage class of operation equipment.
(4) ground connection annealed copper wire has split-phase type and combined type, and grounding rod has flat and two-man act hook-type wire clamp.
Before portable short-circuit grounding wire, answers first electrical verification confirmation to have a power failure, carried out after confirming no-voltage in equipment.First
Earthing clamp is connected in grounded screen or band iron part, conducting wire end line class is then tightened in equipment respectively with ground operation bar and is led
On line.When removing short-circuit grounding wire, sequence is just contrary to the above.
The short-circuit grounding wire of installing, the distance of it and charging equipment, it is contemplated that be grounded the influence of string pendulum, safe distance is answered
Numerical value as defined in new not less than " electric power safety working regulation ".
Forbid not having to wire clamp and carry out ground short circuit with the method for winding.
Hitch point makees grounding connection if any grounding point, application of grounding wire clamp or dedicated copper rod;It such as can benefit without dead earth point
With;Temporary grounding point then can be used, earthing pole embedment subterranean depth should be not less than 0.6m.
Portable short-circuit grounding wire should be kept properly.Every time before use, should all go through whether it intact, annealed copper wire without
Naked dew, nut are not loosened, otherwise must not be used.
Portable short-circuit grounding wire round of visits is every twice-a-decade, examines the same exfactory inspection of project.Through pass the test
Portable short-circuit grounding wire should should generally be reported after being subjected to short circuit according to short circuit current size and appearance test and judge is subjected to
It is useless.
Most of existing ground connection the Line tool is carried out using ground wire operating lever, and the weight of one group of 15 meters of length ground line is
30 jin, operating personnel is mostly portable a copper wire when installing ground line, holds an insulating bar on the other hand toward power failure work
It is hung on route, since stress point is in gib head, so arduously.Direct body contact's ground wire directly contributes the person once accident occurs
Electric shock.
Utility model content
The purpose of the utility model is to provide a kind of laborsaving, human bodies easy to operate and ground wire to be in connecing for absolute state of insulation
The improvements in security structure of ground wire.
To achieve the goals above, the technical solution that the utility model is taken is as follows:
A kind of improvements in security structure of ground line, insulating bar including inner hollow, the gib head for being fixed on insulating bar top,
It is connected to gib head bottom and the cable core that is located in insulating bar hollow cavity and connect with cable core and outside the insulating bar
The ground line in portion.
The upper end of the cable core is solid by wiring construction and gib head bottom as a further improvement of the utility model,
Fixed connection.
The wiring construction includes being fixedly connected on the gib head of gib head bottom to connect as a further improvement of the utility model,
Line terminals, the cable core connector for being fixed at cable core upper end and by cable core connector and gib head connecting terminal pressure
It is connected to connection bolt together.
The cable core lower end and ground line pass through ground line terminal bonding as a further improvement of the utility model,
It connects together.
The ground line terminal outer sheath is equipped with transparent hose as a further improvement of the utility model,.
Insulating layer is coated with outside the cable core as a further improvement of the utility model,.
The compressive resistance of the insulating layer is 15kV as a further improvement of the utility model,.
The insulating bar is clamped rubber sleeve, setting in the middle part of the rubber sleeve as a further improvement of the utility model,
There is through-hole, the cable core penetrates through through-hole.
T shape clamping footing, the insulation are provided on the rubber sleeve end face as a further improvement of the utility model,
Bar bottom end face offers the T connected in star to match with T shape clamping footing；The T shape clamping footing is connected in T connected in star.
Elastic clamping pieces are provided on the gib head as a further improvement of the utility model,.
Compared with prior art, it is had the beneficial effect that acquired by the utility model:
The utility model is structurally reasonable, easy to use, with the copper wire of the insulating layer with pressure-resistant 15kV or more directly from exhausted
It is penetrated in edge bar, one end and hook connect, and the other end is connect with the copper wire at three-phase short circuit.Since fulcrum force occurs when installing
Change, stress point is transferred to hand from the gib head at the top of insulating bar, rapid operation when connecting charging equipment, even if operating personnel
Insulating bar is held in bosom, human body is also constantly in safe condition, improves the security reliability and work effect of work of connecting wires
Rate.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the utility model；
Attached drawing 2 is the portion the A enlarged diagram of attached drawing 1；
Attached drawing 3 is the portion the B enlarged diagram of attached drawing 1；
Attached drawing 4 is the portion the C enlarged diagram of attached drawing 1.
In attached drawing: 1 insulating bar, 2 gib heads, 3 elastic clamping pieces, 4 wiring constructions, 5 cable cores, 6 rubber sleeves, 7 ground lines
Terminal, 8 ground lines, 9 insulating layers, 10 transparent hoses, 41 gib head connecting terminals, 42 connection bolts, 43 cable core connectors, 61 T
Shape is clamped footing.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the application and its application or making
Any restrictions.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall in the protection scope of this application.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited scope of the present application processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need that it is further discussed in figure.
In the description of the present application, it is to be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System is merely for convenience of description the application and simplifies description, and in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is the limitation to the application protection scope；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
Apply for the limitation of protection scope.
As shown in attached drawing 1-4, a kind of improvements in security structure of ground line, insulating bar 1 including inner hollow is fixed on absolutely
The gib head 2 on 1 top of edge bar, the cable core 5 and and cable for being connected to 2 bottom of gib head and being located in 1 hollow cavity of insulating bar
The ground line 8 core 5 connection and be located at outside insulating bar 1.The upper end of the cable core 5 passes through wiring construction 4 and 2 bottom of gib head
It is fixedly connected.The wiring construction 4 includes the gib head connecting terminal 41 for being fixedly connected on 2 bottom of gib head, is fixed at cable
The cable core connector 43 of 5 upper end of core and cable core connector 43 and gib head connecting terminal 41 are crimped onto connection together
Bolt 42；5 lower end of cable core is connected together with ground line 8 by the ground line pressing of terminal 7.The ground line terminal
7 outer sheaths are equipped with transparent hose 10.It is coated with insulating layer 9 outside the cable core 5, using the cable of excellent insulating property
Core 5 penetrates connection ground line in insulating bar 1.The compressive resistance of the insulating layer 9 is 15kV.The insulating bar 1 is connected with rubber
6 are covered, through-hole is provided in the middle part of the rubber sleeve 6, the cable core 5 penetrates through through-hole.T is provided on 6 end face of rubber sleeve
Shape is clamped footing 61, and 1 bottom end face of insulating bar offers the T connected in star to match with T shape clamping footing 61；The T shape
Clamping footing 61 is connected in T connected in star.Elastic clamping pieces 3 are provided on the gib head 2.The cable core 5 is annealed copper wire.
The safety control measures taken in the utility model application；Insulation pressure test, test knot have been carried out to insulation tube
Fruit is qualified.Short circuit current test has been carried out to whole group ground line, it is through-flow all right.D.C. resistance has been carried out to whole group ground line
Test, meets ground line code requirement, and test result is qualified.
Insulated cable core uses 35 square millimeters of sectional area of copper cable, uses copper terminals with clamp for ground wire
Son crimping rear bolt connection crimps connection using connecting terminal with ground line, and carries out insulation protection using transparent hose.
Ground line is changed to laborsaving lever by laborious lever, and ground line is changed to by wire clamp connection by connecting in insulation tube,
Solves the problem of time-consuming and laborious when ground wire hitching, to be easy touch operation human body, hanging earthing conductor can be laborsaving, and guarantees human body
Ground line is not contacted.
The utility model is structurally reasonable, easy to use, with the copper wire of the insulating layer with pressure-resistant 15kV or more directly from exhausted
It is penetrated in edge bar, one end and hook connect, and the other end is connect with the copper wire at three-phase short circuit.Since fulcrum force occurs when installing
Change, stress point is transferred to hand from the gib head at the top of insulating bar, rapid operation when connecting charging equipment, even if operating personnel
Insulating bar is held in bosom, human body is also constantly in safe condition, improves the security reliability and work effect of work of connecting wires
Rate.
Points for attention of the utility model in ground line use:
1, it has to check for being grounded before work.Whether cable core breaks end, and has non-loosening, the bullet of line hook at screw connection
Whether power normal, it is undesirable should exchange or fix in time after reuse.
2, necessary elder generation's electrical verification before hanging earthing conductor, non-electrical verification hanging earthing conductor is habitual act of violating regulations more universal in base,
In suspension, ground connection drawing lines body cannot be contacted with body.
3, it hangs and is grounded at the job site both ends Liang Duan, in order to avoid user falls power transmission, faradic possibility, deeply hurt
Example is many.
4, when beating ground stud, ground physical efficiency Quick dredging accident high current can be borrowed by dialling, and guarantee ground connection quality.
5, ground line is cherished.Ground line must not turn round flower in use, when not used should be good by cable core disk, ground connection
Line must not be transmitted with rope from leaving behind or disorderly falling in the air everywhere after dismounting, pay attention to the cleaning of ground line.
6, training, the study that new staff has to pass through that earth wire uses can be individually engaged in and connect after examination is qualified
Ground wire operation uses work.
7, the ground line of corresponding specification is selected by different voltages grade.
8, forbid to replace being grounded using other metal wires.
9, work on the spot must not lack hanging earthing conductor or change hanging earthing conductor place without authority.
10, ground line has two-sidedness, it has the function of safety, and improper use can also generate damage effect, so work
Ground line will be removed in time by finishing.Line combination switch with ground can damage electrical equipment and destroy the stabilization of power grid, will lead to tight
The pernicious electrical hazard of weight.
Embodiment described above is only the preferred embodiment of the utility model, and the not feasible implementation of the utility model
Exhaustion.For persons skilled in the art, it is made under the premise of without departing substantially from the utility model principle and spirit
Any obvious change out, should all be contemplated as falling within the claims of the utility model.
Claims (10)
1. a kind of improvements in security structure of ground line, it is characterised in that: insulating bar (1) including inner hollow is fixed on insulation
The gib head (2) on bar (1) top, be connected to gib head (2) bottom and be located at insulating bar (1) hollow cavity in cable core (5) and
It is connect with cable core (5) and is located at insulating bar (1) external ground line (8).
2. a kind of improvements in security structure of ground line according to claim 1, it is characterised in that: the cable core (5)
Upper end be fixedly connected by wiring construction (4) with gib head (2) bottom.
3. a kind of improvements in security structure of ground line according to claim 2, it is characterised in that: the wiring construction (4)
Including the gib head connecting terminal (41) for being fixedly connected on gib head (2) bottom, the cable that is fixed at cable core (5) upper end
Core connector (43) and cable core connector (43) and gib head connecting terminal (41) are crimped onto connection bolt (42) together.
4. a kind of improvements in security structure of ground line according to claim 1, it is characterised in that: the cable core (5)
Lower end is connected together with ground line (8) by ground line terminal (7) pressing.
5. a kind of improvements in security structure of ground line according to claim 4, it is characterised in that: the ground line terminal
(7) outer sheath is equipped with transparent hose (10).
6. a kind of improvements in security structure of ground line according to claim 1, it is characterised in that: the cable core (5)
Outside is coated with insulating layer (9).
7. a kind of improvements in security structure of ground line according to claim 6, it is characterised in that: the insulating layer (9)
Compressive resistance is 15kV.
8. a kind of improvements in security structure of ground line according to claim 1, it is characterised in that: insulating bar (1) card
It is connected to rubber sleeve (6), through-hole is provided in the middle part of the rubber sleeve (6), the cable core (5) penetrates through through-hole.
9. a kind of improvements in security structure of ground line according to claim 8, it is characterised in that: rubber sleeve (6) end
T shape clamping footing (61) is provided on face, insulating bar (1) bottom end face is offered to match with T shape clamping footing (61)
T connected in star；T shape clamping footing (61) is connected in T connected in star.
10. a kind of improvements in security structure of ground line according to claim 1, it is characterised in that: set on the gib head (2)
It is equipped with elastic clamping pieces (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822154690.2U CN209401869U (en) | 2018-12-21 | 2018-12-21 | A kind of improvements in security structure of ground line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822154690.2U CN209401869U (en) | 2018-12-21 | 2018-12-21 | A kind of improvements in security structure of ground line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209401869U true CN209401869U (en) | 2019-09-17 |
Family
ID=67895537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822154690.2U Expired - Fee Related CN209401869U (en) | 2018-12-21 | 2018-12-21 | A kind of improvements in security structure of ground line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209401869U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113097753A (en) * | 2021-04-12 | 2021-07-09 | 国网湖北省电力有限公司神农架供电公司 | Enclosed bus grounding wire device |
-
2018
- 2018-12-21 CN CN201822154690.2U patent/CN209401869U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113097753A (en) * | 2021-04-12 | 2021-07-09 | 国网湖北省电力有限公司神农架供电公司 | Enclosed bus grounding wire device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206274554U (en) | A kind of dismountable portable high-pressure ground wire | |
| CN104868403A (en) | Portable 120-to-400mm2 aluminum conductor steel reinforced cable shunting clamp and use method thereof | |
| CN203734209U (en) | Live working device for cable bypass | |
| CN202749745U (en) | Special-purpose grounding lead wire for intersecting interconnection box maintenance | |
| CN106842448A (en) | A kind of enterprising remaining cable case of cable insulation landing of transformer station | |
| CN209401869U (en) | A kind of improvements in security structure of ground line | |
| CN109462055A (en) | A kind of improvements in security structure of ground line | |
| CN105428841A (en) | Cable grounding device | |
| CN104316736B (en) | Combined insulated lead for switch cabinet power-frequency and alternating-current withstand voltage test | |
| CN205646196U (en) | Looped netowrk cabinet earthing device | |
| CN209150498U (en) | A kind of lightning protection complexes | |
| CN202084792U (en) | Novel distribution box for construction site | |
| CN206148773U (en) | Enclosed bus adapter | |
| CN206640093U (en) | A kind of multi-functional current safe connection equipment | |
| CN103944094A (en) | 10-kV handcart switch cabinet bus fixed contact ground method and special grounding device thereof | |
| CN205070178U (en) | Portable maintenance power supply box | |
| CN211150812U (en) | Novel grounding wire device | |
| CN209675513U (en) | A kind of novel test operation standard trolley | |
| CN107181247A (en) | A kind of transformer station's communication system lightening arresting method | |
| CN205609782U (en) | Electric earth connection is tested to quick reputation of distribution | |
| CN208570982U (en) | A kind of air switch front end connector | |
| CN204760571U (en) | Electric earth connection is tested to quick reputation of distribution | |
| CN106771386A (en) | A kind of electrical test thread guide devices for making somebody a mere figurehead electrical equipment | |
| CN202772544U (en) | T-type three-phase high-tension no-partial-discharge cable joint | |
| CN206470292U (en) | A kind of electrical test thread guide devices for being used to make somebody a mere figurehead electrical equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190917 Termination date: 20191221 |