CN203179575U - Novel copper alloy sheath through ground wire - Google Patents
Novel copper alloy sheath through ground wire Download PDFInfo
- Publication number
- CN203179575U CN203179575U CN 201220548501 CN201220548501U CN203179575U CN 203179575 U CN203179575 U CN 203179575U CN 201220548501 CN201220548501 CN 201220548501 CN 201220548501 U CN201220548501 U CN 201220548501U CN 203179575 U CN203179575 U CN 203179575U
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- China
- Prior art keywords
- cable core
- ground wire
- wire
- wires
- copper
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Abstract
The utility model discloses a novel copper alloy sheath through ground wire. The novel copper alloy sheath through ground wire comprises a cable core; the cable core comprises a plurality of copper wires which are stranded together; the cable core at least comprises a test wire; the cable core is sheathed in a metal outer sheath; the exterior of each copper wire is provided with a protective layer; the cable core is composed of 7 copper wires or 19 copper wires; the stranding mode of the copper wires is a layered stranding mode or a concentric stranding mode; the test wires are insulated single wires, wherein the insulated wires are aluminum wires with insulating layers or copper wires with insulating layers; and one or two test wires exist. With the novel copper alloy sheath through ground wire of the utility model adopted, the technical problems such as environmental pollution and incapability of quickly finding a damaged or fractured portion existing in a through ground wire in the prior art can be solved. The novel copper alloy sheath through ground wire is advantageous in excellent conductivity, environmental protection, corrosion resistance and wire fracture alarm function.
Description
Technical field
The utility model relates to the improvement that a kind of railway is used the Through ground wire structure.
Background technology
Through ground wire is a kind of special-purpose earth cable of signal of unifying earthing mode on railway signal system employing all fronts road, and it can guarantee road ground connection equipotential completely, eliminates the unsymmetrical current that causes owing to the potential difference between the distinct device.Because Through ground wire is connected with rail with ground, can satisfy the requirement of the long-term good earth resistance value of large-scale grounding system, has realized the effective protection to personnel and equipment.For satisfying the stricter instructions for use of railway ground connection, need a kind of Through ground wire with conductivity, environment-friendly type, corrosion resistance, band break alarm of exploitation.
The utility model content
Technical problem to be solved in the utility model provides a kind of new copper alloy sheath run-through ground wire, it not only long service life, environmentally safe but also can find out fast damage or disconnect the position.
In order to solve the problems of the technologies described above, new copper alloy sheath run-through ground wire of the present utility model comprises cable core, and described cable core comprises many copper cash that twist together, and at least also comprises a p-wire in this cable core, is enclosed within metallic jacket in the outside of described cable core.
Described every copper cash is outside equipped with protective layer.
Described cable core is made of 7 copper cash or 19 copper cash, and its stranded mode is layer-twisted type or concentric type.
Described p-wire is insulated single wire, and described insulated single wire is the aluminum steel of tape insulation layer or the copper cash of tape insulation layer.
The quantity of described p-wire is one or two.
The utlity model has following advantage:
1, environment friendly and pollution-free.Metal outer jacket in the utility model Through ground wire meets the earth resistance requirement of Through ground wire, and corrosion-resistant and even nonpollution material can not pollute soil.
2, can find out damage or disconnection position fast.The p-wire of at least one tape insulation layer is set in cable core of the present utility model, if Through ground wire damages under external force or disconnects, can cause the disconnection of this p-wire simultaneously, cause the warning system warning, the this moment of searching and calculating by instrumentation, the maintenance personal can find the gap of p-wire fast, has also found damage or the gap of Through ground wire simultaneously fast.
3, long service life.Metal outer jacket of the present utility model can play well anticorrosion and protective action to the copper cable core in the Through ground wire, can guarantee in the environment of inclement condition of Through ground wire long-term work, and be able to take high vibration, long service life.
The explanation of accompanying drawing drawing
Fig. 1 is the structural representation of a kind of embodiment of the utility model new copper alloy sheath run-through ground wire;
Fig. 2 is the structural representation of the another kind of embodiment of the utility model new copper alloy sheath run-through ground wire.
Wherein: 1-cable core 2-copper cash 3-protective layer 4-p-wire 5-metallic jacket.
Specific embodiments
New copper alloy sheath run-through ground wire as shown in Figure 1 comprises cable core 1, and this cable core 1 is by TR type annealed copper wire 2 stranded the forming of 7 diameter 2.13mm, and cable core 1 internal layer is 1 copper cash 2, and cable core 1 skin is by 6 copper cash, 2 stranded forming.Every copper cash 2 is outside equipped with protective layer 3, and the material of this protective layer 3 comprises rare earth alloy and zinc-rich paint, epoxy spelter coating, nano-carbon anticorrosion conductive coating, graphite corrosion-resistant conductive coating or nickel powder anticorrosion conduction plating material or the plating material of the above metal of alloy of metals such as tin, zinc, aluminium, nickel, copper.Be enclosed within metallic jacket 5 in the outside of described cable core 1, the material of this metallic jacket 5 is copper alloy, also can adopt metal or its copper alloy or its rare earth alloy of environmentally safes such as tin, zinc, magnesium, nickel, as rare earth aluminium alloy etc.A p-wire 4 is set in the cable core 1, p-wire 4 can be the aluminum steel of tape insulation layer or the copper cash of tape insulation layer, wherein the copper cash of tape insulation layer comprises enamel covered wire, plastics copper cash, is good with high density polyethylene (HDPE) insulating barrier copper cash or cross-linking radiation polyolefin insulation layer copper cash especially.
According to cable core area difference, can adopt the copper cash of different-diameter; For satisfying different needs, the cable core internal layer also can adopt different radicals to cooperate with outer.
As shown in Figure 2, new copper alloy sheath run-through ground wire comprises cable core 1, the TR type annealed copper wire 2 that this cable core 1 is 1.53mm by 19 diameters is stranded by concentric type, 1 copper cash 2 is placed in the center, all the other 18 copper cash 2 are two-layer circumferential arrangement around center copper cash 2, internal layer 6 copper cash 2 that evenly distribute wherein, outer 12 copper cash 2 that evenly distribute are provided with two p-wires 4 in the cable core 1; Be enclosed within metallic jacket 5 in the outside of described cable core 1, the material of this metallic jacket 5 is copper alloy, also can adopt metal or its copper alloy or its rare earth alloy of environmentally safes such as tin, zinc, magnesium, nickel, as rare earth aluminium alloy etc.
P-wire 4 can be the aluminum steel of tape insulation layer or the copper cash of tape insulation layer, and wherein the copper cash of tape insulation layer comprises enamel covered wire, plastics copper cash, is good with high density polyethylene (HDPE) insulating barrier copper cash or cross-linking radiation polyolefin insulation layer copper cash especially.
According to cable core area difference, can adopt the copper cash of different-diameter; For satisfying different needs, the cable core internal layer also can adopt different radicals to cooperate with outer.
Claims (5)
1. new copper alloy sheath run-through ground wire, comprise cable core (1), it is characterized in that: described cable core (1) comprises the many copper cash (2) that twist together, and at least also comprises in this cable core (1) being enclosed within metallic jacket (5) in the outside of described cable core (1) by a p-wire (4).
2. new copper alloy sheath run-through ground wire according to claim 1, it is characterized in that: described every copper cash (2) is outside equipped with protective layer (3).
3. new copper alloy sheath run-through ground wire according to claim 1 and 2 is characterized in that: described cable core (1) is made of 7 copper cash (2) or 19 copper cash (2), and its stranded mode is layer-twisted type or concentric type.
4. new copper alloy sheath run-through ground wire according to claim 1 and 2, it is characterized in that: described p-wire (4) is insulated single wire, and described insulated single wire (4) is the aluminum steel of tape insulation layer or the copper cash of tape insulation layer.
5. the Through ground wire of new copper alloy sheath according to claim 4, it is characterized in that: the quantity of described p-wire (4) is one or two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220548501 CN203179575U (en) | 2012-10-22 | 2012-10-22 | Novel copper alloy sheath through ground wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220548501 CN203179575U (en) | 2012-10-22 | 2012-10-22 | Novel copper alloy sheath through ground wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203179575U true CN203179575U (en) | 2013-09-04 |
Family
ID=49076241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220548501 Expired - Lifetime CN203179575U (en) | 2012-10-22 | 2012-10-22 | Novel copper alloy sheath through ground wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203179575U (en) |
-
2012
- 2012-10-22 CN CN 201220548501 patent/CN203179575U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |
|
| CX01 | Expiry of patent term |