CN203787782U - Special grounding wire for ring main unit - Google Patents
Special grounding wire for ring main unit Download PDFInfo
- Publication number
- CN203787782U CN203787782U CN201420190081.1U CN201420190081U CN203787782U CN 203787782 U CN203787782 U CN 203787782U CN 201420190081 U CN201420190081 U CN 201420190081U CN 203787782 U CN203787782 U CN 203787782U
- Authority
- CN
- China
- Prior art keywords
- grounding
- grounding wire
- pit
- ground connection
- wire
- 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
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 22
- 235000019994 cava Nutrition 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Cable Accessories (AREA)
Abstract
The utility model discloses a special grounding wire for a ring main unit, which comprises a grounding wire clamp. The grounding wire clamp is connected with a general grounding wire; the other end of the general grounding wire is connected with a plurality of grounding sub wires; the other ends of the grounding sub wires are all connected with metal extension connection rods; one end of each metal extension connection rod is sunken and provided with a grounding connection groove; the other end of each metal extension connection rod is sunken and provided with a pit; the pit is internally provided with thread; the inner thread of the pit is connected with a bolt; the bolt is sleeved with a wiring nose, a spring gasket and a washer, and the wiring nose is connected with the grounding sub wire; a bayonet plane is arranged outside one end, provided with the pit, of the metal extension connection rod; the number of the grounding sub wires is three; and the grounding sub wires and the general grounding wire are coated with insulated outer sheaths. The special grounding wire disclosed by the utility model can be applied to ring main units with different inner unit spaces, the structure is simple, the special grounding wire can be applied to grounding of elbow-type cable heads of different models to enable the cable heads to be reliably grounded, and personal safety of the maintenance person on site can be ensured.
Description
Technical field
The utility model relates to a kind of electric power apparatus examination earth connection, relates in particular to a kind of Special grounding wire for looped network cabinet.
Background technology
Ring main unit is the controller switching equipment of essential during city net is built and extensive use, and because of the difference of manufacturer, model and the size of elbow type cable end are also had nothing in common with each other.Ring main unit elbow type cable end adopts hermetically sealed all insulation mode to make, and there is no the position of special hanging earthing conductor.The no ground disconnecting link of many ring main unit bodies, even if there is the ring main unit of grounding switch, it is totally-enclosed that grounding switch device is positioned at ring main unit inside, when maintenance, cannot obviously see equipment cut-off point, will cause maintainer's electric shock hidden danger.
Summary of the invention
The purpose of this utility model is to provide a kind of Special grounding wire for looped network cabinet of simple in structure, safe ready.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of Special grounding wire for looped network cabinet, comprise earthing clamp, it is characterized in that: earthing clamp is connected with earth bus, the earth bus other end is connected with many ground connection separated times, the ground connection separated time other end is all connected with metal and extends connecting rod, metal extends connecting rod and wherein caves inward and be provided with grounding connection groove in one end, the metal prolongation connecting rod other end caves inward and is provided with pit, pit inside is threaded, pit internal thread is connected with bolt, on bolt, be set with Wiring nose, spring pad and packing ring, Wiring nose is connected with ground connection separated time.
Special grounding wire for looped network cabinet according to described, is characterized in that: described metal extend connecting rod with the outside, one end of pit with bayonet socket plane.
Special grounding wire for looped network cabinet according to described, is characterized in that: the quantity of described ground connection separated time is three.
Special grounding wire for looped network cabinet according to described, is characterized in that: described ground connection separated time and earth bus coated outside have insulation oversheath.
The ring main unit that the utility model differs applicable to space in cabinet, simple in structure, and can be applicable to the ground connection of the elbow type cable end of different model, and make elbow type cable end reliable ground, can guarantee the personal safety of field service personnel.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation that in the utility model, metal extends connecting rod.
In accompanying drawing:
1, earthing clamp; 2, earth bus; 3, ground connection separated time; 4, grounding connection groove; 5, metal extends connecting rod; 6, Wiring nose; 7, spring pad; 8, packing ring; 9, bolt; 10, bayonet socket plane; 11, pit.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
A kind of Special grounding wire for looped network cabinet, as depicted in figs. 1 and 2, comprise earthing clamp 1, earthing clamp 1 is connected with earth bus 2, earth bus 2 other ends are connected with many ground connection separated times 3, ground connection separated time 3 other ends are all connected with metal and extend connecting rod 5, metal extends connecting rod 5 and wherein caves inward and be provided with grounding connection groove 4 in one end, metal prolongation connecting rod 5 other ends cave inward and are provided with pit 11, pit 11 inside are threaded, pit 11 internal threads are connected with bolt 9, are set with Wiring nose 6, spring pad 7 and packing ring 8 on bolt 9, and Wiring nose 6 is connected with ground connection separated time 3.
In the present embodiment, metal extend connecting rod 5 with the outside, one end of pit 11 with bayonet socket plane 10, be convenient to the instruments such as spanner and tighten.The quantity of described ground connection separated time 3 is three.Ground connection separated time 3 and earth bus 2 coated outside have insulation oversheath.
The utility model is ring main unit maintenance Special grounding wire, uses metal to extend connecting rod elbow type cable end binding post is drawn, and extend rod rear end connection earth connection at metal.
Metal extends connecting rod and adopts copper material to make, and one end is connected with the screw rod of ring main unit, by ring main unit elbow type cable end back, is embedded and is connected, and the other end is with pit, and pit inside is threaded.
Copper Wiring nose and copper earth connection and oversheath adopt crimping new technology, are flexible coupling and can prevent disconnected strand of junction copper cash.
Earthing clamp adopts fine aluminum alloy die cast, and supporting securing member metal, can anti-parts oxidation all through zinc-plated processing.
Earth connection adopts sectional area to be not less than 25mm
2multiply annealed copper wire stranded, cover the insulation oversheath that soft high-temperature-resistant is transparent outward, can guarantee safe and reliable.
Special grounding wire for looped network cabinet described in the utility model takes up room little, firm and reliable connection, can guarantee Overhaul site operating personnel personal safety, the multiple ring main unit differing applicable to space in cabinet, and be easy to carry about with one, cheap, durable, can be used in various ring main unit maintenance job site.
The utility model is elbow type cable end Special grounding device, can eliminate field work safe hidden danger, guarantees field service personnel personal safety.
Through a series of research and on-the-spot application, find, compare with common earth connection, use Special grounding wire for looped network cabinet can significantly promote security performance and operating efficiency.According to effect inspection, the installing process of Special grounding wire for looped network cabinet is no more than 10 minutes, and ground connection is reliable, firm, and does not take space in ring main unit, can guarantee field personnel's personal safety.
Claims (4)
1. a Special grounding wire for looped network cabinet, comprise earthing clamp (1), it is characterized in that: earthing clamp (1) is connected with earth bus (2), earth bus (2) other end is connected with many ground connection separated times (3), ground connection separated time (3) other end is all connected with metal and extends connecting rod (5), metal extends connecting rod (5) and wherein caves inward and be provided with grounding connection groove (4) in one end, metal prolongation connecting rod (5) other end caves inward and is provided with pit (11), pit (11) inside is threaded, pit (11) internal thread is connected with bolt (9), on bolt (9), be set with Wiring nose (6), spring pad (7) and packing ring (8), Wiring nose (6) is connected with ground connection separated time (3).
2. Special grounding wire for looped network cabinet according to claim 1, is characterized in that: described metal extend connecting rod (5) with the outside, one end of pit (11) with bayonet socket plane (10).
3. Special grounding wire for looped network cabinet according to claim 2, is characterized in that: the quantity of described ground connection separated time (3) is three.
4. Special grounding wire for looped network cabinet according to claim 3, is characterized in that: described ground connection separated time (3) and earth bus (2) coated outside have insulation oversheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420190081.1U CN203787782U (en) | 2014-04-18 | 2014-04-18 | Special grounding wire for ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420190081.1U CN203787782U (en) | 2014-04-18 | 2014-04-18 | Special grounding wire for ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203787782U true CN203787782U (en) | 2014-08-20 |
Family
ID=51323936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420190081.1U Expired - Fee Related CN203787782U (en) | 2014-04-18 | 2014-04-18 | Special grounding wire for ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203787782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024183A (en) * | 2015-08-09 | 2015-11-04 | 曾宪雄 | Improved insulating platform grounding line |
-
2014
- 2014-04-18 CN CN201420190081.1U patent/CN203787782U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024183A (en) * | 2015-08-09 | 2015-11-04 | 曾宪雄 | Improved insulating platform grounding line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20150418 |
|
| EXPY | Termination of patent right or utility model |