CN202084330U - Through ground wire used in railway integrated grounding system - Google Patents
Through ground wire used in railway integrated grounding system Download PDFInfo
- Publication number
- CN202084330U CN202084330U CN2011201481636U CN201120148163U CN202084330U CN 202084330 U CN202084330 U CN 202084330U CN 2011201481636 U CN2011201481636 U CN 2011201481636U CN 201120148163 U CN201120148163 U CN 201120148163U CN 202084330 U CN202084330 U CN 202084330U
- Authority
- CN
- China
- Prior art keywords
- sheath
- ground wire
- flame
- grounding system
- retardant
- 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 - Lifetime
Links
- 239000004020 conductor Substances 0.000 claims abstract description 19
- 239000003063 flame retardant Substances 0.000 claims description 24
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 22
- 229920000642 polymer Polymers 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 4
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract 2
- 230000004520 agglutination Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Images
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- Insulated Conductors (AREA)
Abstract
The utility model relates to a through ground wire used in a railway integrated grounding system, which comprises a cable core and a protective sleeve, and is characterized in that the cable core comprises a conductor formed by agglutination in a multilayer form, and the protective sleeve is cladded at the outer side of the cable core and embedded into a gap of the conductor at an outermost layer. The through ground wire has good electrical conductivity, flame retardance, corrosion resistance, environmental protection and engineering applicability.
Description
Technical field
The utility model relates to a kind of grounding system with connecting earth cable, particularly a kind of structure that is used for the Through ground wire of railway combined grounding system.
Background technology
Through ground wire is a kind of railway combined grounding system that is used for, and adopts all fronts road to unify the mode of ground connection, has guaranteed road ground connection equipotential completely, has eliminated because the unsymmetrical current that the potential difference between the distinct device causes.Through ground wire is connected with rail with ground, satisfies the requirement of the long-term good earth resistance value of large-scale grounding system, has realized the effective protection to personnel and equipment.
Being directed to existing Through ground wire product fire incident takes place frequently, cable use and installation process in owing to spontaneous combustion or ignite and cause economic loss, safe operation to the railway system also causes very big hidden danger, this product not only needs to satisfy operating characteristics such as anti-corrosive properties, the feature of environmental protection, engineering application, what more need solve is good ground connection performance of product (being conductivity) and excellent fire retardant fire protecting performance, in the design criterion of the Ministry of Railways " safety is preferential ", both are indispensable.In addition, be subjected to the influence of market competition, the Through ground wire product needed just can have certain competitiveness guaranteeing to reduce material cost under the product quality premise.
Along with the continuous development of railway territory, the performance requirement of Through ground wire product also constantly promotes, and design also needs to suit more market demands, should satisfy the ground connection operating characteristic of product itself, also needs to promote greatly the coefficient of safety and the cost performance of product itself.
Therefore be necessary to provide a kind of railway combined through ground wire product with satisfactory electrical conductivity, anti-flammability, anti-corrosive properties, the feature of environmental protection, engineering application.
The utility model content
The purpose of this utility model is to provide a kind of Through ground wire that is used for railway combined grounding system, it comprises cable core and sheath, described cable core comprises the conductor with the multilayer form gummed, and described sheath is coated on the cable core outside, and is embedded in the gap of described outermost conductor.
Preferably, described conductor is copper cover aluminum, copper covered steel or Cu alloy material, and described sheath is flame-retardant high-molecular sheath or flame-retardant conductive high polymer sheath.
Preferably, oxygen index 〉=30 of described flame-retardant high-molecular sheath or flame-retardant conductive high polymer sheath.
Preferably, the specific insulation of described flame-retardant high-molecular sheath or flame-retardant conductive high polymer sheath≤0.7 Europe centimetre.
Preferably, described conductor is with 1+6,1+6+12 form layer strand.
The sheath of Through ground wire described in the utility model is coated on the cable core outside, and be embedded in the gap of described outermost conductor, make the operating characteristic of cable integral body be improved, realized the safe earial drainage of Through ground wire in the grounding system, guarantee the operate as normal of grounding apparatus, facility.The utility model also has advantage with low cost in addition, and has good electrical conductivity, anti-flammability, anti-corrosive properties, environment-friendly type and engineering application.
Description of drawings
Fig. 1 meets the cross section structure schematic diagram that is used for the Through ground wire of railway combined grounding system of the present utility model.
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing 1.But content of the present utility model is not only limited to so.
See also Fig. 1, meet a kind of Through ground wire that is used for railway combined grounding system of the present utility model, the sheath 2 that it comprises cable core 1 and is coated on cable core 1 outside.Described cable core 1 comprises that described conductor 3 is copper cover aluminum, copper covered steel or Cu alloy material with the conductor 3 of multilayer form gummed, and this conductor 3 forms the cable core 1 of rounding, rule with 1+6,1+6+12 form layer strand.
Described sheath 2 is flame-retardant high-molecular sheath or flame-retardant conductive high polymer sheath.Oxygen index 〉=30 of described flame-retardant high-molecular sheath or flame-retardant conductive high polymer sheath.The specific insulation of described flame-retardant high-molecular sheath or flame-retardant conductive high polymer sheath≤0.7 Europe centimetre.Described sheath 2 is coated on cable core 1 outside, and is embedded in the gap of described outermost conductor 3.
As metallic conductor, aluminium and steel are with respect to the copper material aboundresources, cheap, adopt this material can reduce material cost greatly as cable conductor, but the electric conductivity of aluminium, steel is not as good as copper material, and corrosion resistance is poor, and copper material good electrical conductivity and corrosion resistance gain public acceptance, therefore by various conductor materials advantage separately, adopt copper cover aluminum, copper covered steel or copper alloy conductor as Through ground wire, both satisfy the current-carrying of cable own, corrosion-resistant etc. instructions for use, can also reduce material cost greatly, improved the market competition degree.
Consider that railway tunnel along the line, bridge are more, therefore the outer jacket with Through ground wire is designed to flame retarded polymeric material or flame-retardant conductive macromolecular material, satisfies fire-retardant, conduction, environmental protection, the requirement of long life.
Flame-retardant conductive high polymer sheath environment-protecting comprehensive Through ground wire not only has similar and processability and corrosion resistance common cable linear density polyethylene oversheath, has the electric conductivity of metalloid sheath again, also will take into account flame-retarding characteristic simultaneously.The electric conductivity of specific insulation index reflection sheath material, the specific insulation of combustion conductive high polymer sheath environment-protecting comprehensive Through ground wire sheath is below 0.7 Ω cm, near the specific insulation index of conductive black self, lower more than tens times than the semiconductive polyolefin shielding material that is used for the above power cable of 10kV; The usable condition to environment of low-temperature impact brittle temperature index, thermal contraction index, resisting environmental stress and cracking index reflection sheath, the useful life of decision railway combined through ground wire; The fire resistance of oxygen index index reflection sheath.
The oxygen index of flame-retardant high-molecular sheath or flame-retardant conductive high polymer sheath railway combined through ground wire sheath need reach more than 30, it is hereby ensured the flame-retarding characteristic of product.
Above embodiment only is used to illustrate the utility model, but not is used to limit the utility model.
Claims (5)
1. Through ground wire that is used for railway combined grounding system, it comprises cable core and sheath, it is characterized in that: described cable core comprises the conductor with the multilayer form gummed, described sheath is coated on the cable core outside, and is embedded in the gap of described outermost conductor.
2. a kind of Through ground wire that is used for railway combined grounding system as claimed in claim 1 is characterized in that: described conductor is copper cover aluminum, copper covered steel or Cu alloy material, and described sheath is flame-retardant high-molecular sheath or flame-retardant conductive high polymer sheath.
3. a kind of Through ground wire that is used for railway combined grounding system as claimed in claim 2 is characterized in that: oxygen index 〉=30 of described flame-retardant high-molecular sheath or flame-retardant conductive high polymer sheath.
4. a kind of perforation system that is used for railway combined grounding system as claimed in claim 2 is characterized in that: the specific insulation of described flame-retardant high-molecular sheath or flame-retardant conductive high polymer sheath≤0.7 Europe centimetre.
5. the Through ground wire that is used for railway combined grounding system as claimed in claim 1 is characterized in that: described conductor is with 1+6,1+6+12 form layer strand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201481636U CN202084330U (en) | 2011-05-11 | 2011-05-11 | Through ground wire used in railway integrated grounding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201481636U CN202084330U (en) | 2011-05-11 | 2011-05-11 | Through ground wire used in railway integrated grounding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202084330U true CN202084330U (en) | 2011-12-21 |
Family
ID=45344952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201481636U Expired - Lifetime CN202084330U (en) | 2011-05-11 | 2011-05-11 | Through ground wire used in railway integrated grounding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202084330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346674A (en) * | 2019-05-30 | 2019-10-18 | 李坚 | A kind of railway run-through ground line aerial drainage quality and ground connection quality monitoring method |
-
2011
- 2011-05-11 CN CN2011201481636U patent/CN202084330U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346674A (en) * | 2019-05-30 | 2019-10-18 | 李坚 | A kind of railway run-through ground line aerial drainage quality and ground connection quality monitoring method |
| CN110346674B (en) * | 2019-05-30 | 2021-06-08 | 李坚 | Railway through ground wire leakage quality and grounding quality monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xi'an Xidian Optical Cable Co., Ltd. Assignor: Xian Electric Manufacturing Corp. Contract record no.: 2012610000088 Denomination of utility model: Through ground wire used in railway integrated grounding system Granted publication date: 20111221 License type: Exclusive License Record date: 20120531 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20111221 |
|
| CX01 | Expiry of patent term |