CN203102976U - Direct current cable used for impressed current cathodic protection system - Google Patents
Direct current cable used for impressed current cathodic protection system Download PDFInfo
- Publication number
- CN203102976U CN203102976U CN 201320018446 CN201320018446U CN203102976U CN 203102976 U CN203102976 U CN 203102976U CN 201320018446 CN201320018446 CN 201320018446 CN 201320018446 U CN201320018446 U CN 201320018446U CN 203102976 U CN203102976 U CN 203102976U
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- conductor
- direct current
- coated
- protection system
- cathodic protection
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Abstract
The utility model discloses a direct current cable used for an impressed current cathodic protection system. The direct current cable comprise a conductor; tinned copper wires, alloy wires and an aramid fiber wire are twisted jointly and are bunched so as to form the conductor; the exterior of the conductor is coated with an ethylene propylene rubber insulated layer; the exterior of the ethylene propylene rubber insulated layer is coated with cotton-net tear-resistant layer; the exterior of the tear-resistant layer is coated with a thermoplastic low-smoke halogen-free elastomer sheath layer. The tinned copper wires, the alloy wires and the aramid fiber wire are twisted jointly and are bunched so as to form the conductor of the direct current cable of the utility model, such that the tensile strength and stricutral compactness of the conductor are improved, and the conductivity and flexibility of the conductor are not affected; and at the same time, the direct current cable has the advantages of excellent electrical property, moisture resistance, tear resistance and environmentally-friendly property.
Description
Technical field:
The utility model relates to cable, relates in particular to a kind of impressed current cathodic protection system direct current cables.
Background technology:
Buried steel pipe-line or oil gas storage tank etc. generally all adopt impressed current cathodic protection system in case electrochemical corrosion causes heavy losses.Cathodic protection system is made up of DC power supply (potentiostat), auxiliary anode, protected negative electrode, reference electrode.DC power supply (potentiostat) negative pole is connected with protected negative electrode steel pipe or storage tank by cable; DC power supply (potentiostat) is anodal to be connected with auxiliary anode by cable; auxiliary anode and steel pipe or storage tank applied add protective current and regulate size of current automatically; make steel pipe or jar maintenance negative potential (negative electrodeization); reference electrode is connected with potentiostat with to current potential Monitoring and Controlling in addition by cable; thereby significantly reduce the generation of steel pipe or storage tank, prolonged steel pipe or storage tank life-span because of the electrochemical corrosion perforation.
Be common polyvinyl chloride insulation and sheath power cable (VV type) or crosslinked polyetylene insulated pvc sheath power cable (YJV type) for above-mentioned steel pipe-line or the used cable of oil gas storage tank impressed current cathodic protection system DC power supply cathode and anode, these used cables of impressed current cathodic protection system DC power supply cathode and anode of the prior art exist weak point: as because of containing halogen and heavy metal, polyvinyl chloride no matter is as insulation or sheath material uses, and all is unfavorable for environmental protection; It is good that common crosslinked polyethylene is applied to AC system as insulating material, but being applied to direct current system just has been not suitable for, accumulation because of space charge, under electric field action, polarity inversion, breakdown fault easily takes place in insulation, and this GB50217-2007 3.3.4 bar has also been done special provision.
The utility model content:
In order to remedy the prior art problem, the purpose of this utility model provides a kind of impressed current cathodic protection system direct current cables, and reasonable in design has improved the insulation property and the environment-friendly type performance of cable, and the tear resistance of cable gets a promotion simultaneously.
The technical solution of the utility model is as follows:
The impressed current cathodic protection system direct current cables; comprise conductor; it is characterized in that: described conductor adopts the common stranded bunchy of tinned copper wire, alloy silk and aramid fiber silk to constitute; described conductor is coated with ethylene propylene rubber insulated layer; ethylene propylene rubber insulated layer is coated with the tear resistant layer that web constitutes, and tear resistant layer is coated with thermoplastic low-smoke halide-free elastic body jacket layer.
Described impressed current cathodic protection system direct current cables is characterized in that: described alloy silk can be selected Contra wire for use.
The utility model has the advantages that:
1, conductor adopts the common stranded bunchy of tinned copper wire, alloy silk and aramid fiber silk to constitute, and has improved the tensile strength and the structural compactness of conductor, does not influence electric conductivity and pliability.
2, insulating material is selected Halogen ethylene-propylene rubber for use, its electric property, humidity resistance all are better than polyvinyl chloride, working temperature is also high 20 ℃ than polyvinyl chloride, can compare favourably with crosslinked polyethylene, but can overcome the defective of crosslinked polyethylene space charge, tolerance dc pulse voltage and insulate and do not take place to puncture more is applicable to the insulating material as direct current cables, flexibility also is better than crosslinked polyethylene, is easy to laying installation.
3, insulating material Halogen ethylene-propylene rubber, sheath material thermoplastic low-smoke halide-free elastomer is all not halogen-containing and heavy metal, Halogen, low cigarette, nontoxic, meeting ROHS instruction (being limited in the instruction of using harmful substance in the electronic and electrical equipment), is Green Product.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
Referring to Fig. 1:
The impressed current cathodic protection system direct current cables; comprise conductor; conductor adopts tinned copper wire 1, alloy silk 2 and aramid fiber silk 3 common stranded bunchys to constitute; conductor is coated with ethylene propylene rubber insulated layer 4; electric property, humidity resistance are good, can overcome the defective of crosslinked polyethylene space charge, tolerance dc pulse voltage and insulate and do not take place to puncture; ethylene propylene rubber insulated layer 4 is coated with the tear resistant layer 5 that web constitutes, and tear resistant layer 5 is coated with thermoplastic low-smoke halide-free elastic body jacket layer 6.
Alloy silk 2 can be selected Contra wire for use, and electric conductivity is good.
Ethylene propylene rubber insulated layer, thermoplastic low-smoke halide-free elastic body jacket layer is all not halogen-containing and heavy metal, and Halogen, low cigarette, nontoxic meet the ROHS instruction.
Claims (2)
1. impressed current cathodic protection system direct current cables; comprise conductor; it is characterized in that: described conductor adopts the common stranded bunchy of tinned copper wire, alloy silk and aramid fiber silk to constitute; described conductor is coated with ethylene propylene rubber insulated layer; ethylene propylene rubber insulated layer is coated with the tear resistant layer that web constitutes, and tear resistant layer is coated with thermoplastic low-smoke halide-free elastic body jacket layer.
2. impressed current cathodic protection system direct current cables according to claim 1 is characterized in that: described alloy silk can be selected Contra wire for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320018446 CN203102976U (en) | 2013-01-15 | 2013-01-15 | Direct current cable used for impressed current cathodic protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320018446 CN203102976U (en) | 2013-01-15 | 2013-01-15 | Direct current cable used for impressed current cathodic protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203102976U true CN203102976U (en) | 2013-07-31 |
Family
ID=48854363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320018446 Expired - Fee Related CN203102976U (en) | 2013-01-15 | 2013-01-15 | Direct current cable used for impressed current cathodic protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203102976U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104072896A (en) * | 2014-06-24 | 2014-10-01 | 芜湖航飞科技股份有限公司 | Flame-retardant cable for aviation lighting |
| CN114068107A (en) * | 2021-11-12 | 2022-02-18 | 红旗电缆电器仪表集团有限公司 | Method for processing ultra-soft direct current charging pile cable of electric automobile |
-
2013
- 2013-01-15 CN CN 201320018446 patent/CN203102976U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104072896A (en) * | 2014-06-24 | 2014-10-01 | 芜湖航飞科技股份有限公司 | Flame-retardant cable for aviation lighting |
| CN114068107A (en) * | 2021-11-12 | 2022-02-18 | 红旗电缆电器仪表集团有限公司 | Method for processing ultra-soft direct current charging pile cable of electric automobile |
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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: 20130731 Termination date: 20200115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |