CN103913411A - ADSS (All-dielectric Self-Supporting Optic Fiber Cable) test device and method - Google Patents
ADSS (All-dielectric Self-Supporting Optic Fiber Cable) test device and method Download PDFInfo
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Abstract
The invention discloses an ADSS (All-dielectric Self-Supporting Optic Fiber Cable) test device and an ADSS (All-dielectric Self-Supporting Optic Fiber Cable) test method. The test device comprises a pressurizing device and a salt spray test chamber, wherein the salt spray test chamber is internally provided with a high-voltage lead electrically connected with the pressurizing device and an ADSS arranged in the salt spray test chamber and positioned below the high-voltage lead, two ends of the ADSS are provided with fiber cable hardware fittings, and a fiber cable electro-corrosion protecting cover is sheathed at the junction part of the fiber cable hardware fittings and the ADSS. According to the test scheme of the invention, the performance of the ADSS electro-corrosion protecting cover can be accurately detected, namely, the condition of prevention and alleviation of electro-corrosion of the ADSS; the test scheme is complete, the measurement is accurate and reliable, and the test scheme can also be used in other similar detection tests and has universality.
Description
Technical field
The present invention relates to optical cable experimental technique field, especially relate to a kind of ADSS optical cable test unit and method.
Background technology
Since nineteen ninety-five, ADSS optical cable (also claims All Dielectric self-support, full medium be optical cable used be full dielectric material, self-bearing type refers to that optical cable self stiffener can bear deadweight and external load) start on China's overhead power line, extensively to set up use, to so far, the ADSS optical cable of national on-line operation exceedes 150,000 kilometers.Due to operating ADSS optical cable under overhead transmission line, in wire powerful elect magnetic field around, optical cable makes it the position in a space potential to the capacitive coupling between wire and the earth.Under the effect and special running environment of space potential, optical fiber cable fitting and optical cable generation arcing electric discharge, electroluminescence cable surface melting forms electric injury vestige, along with the reinforcement of electrocorrosion effect is deepened, cable jacket is punctured, cause disconnected cable fault, the safe operation of electric device has been produced to serious impact.At present domestic more and more to the preventive measure research of ADSS optical cable electrocorrosion, therefore, the preventive measure that need to propose the electrocorrosion of ADSS optical cable are verified, but were not also proposed suitable testing program at present.
Summary of the invention
Based on this, for solving the problem of above-mentioned ADSS optical cable without suitable electrolytic corrosion test scheme, the invention provides a kind of ADSS optical cable test unit and method.
The invention provides a kind of ADSS optical cable test unit, its technical scheme is as follows:
A kind of ADSS optical cable test unit, comprise pressue device, salt spray test chamber, in described salt spray test chamber, be provided with the high-voltage conducting wires being electrically connected with described pressue device, and be arranged in described salt spray test chamber and be positioned at the ADSS optical cable of described high-voltage conducting wires below, described ADSS optical cable two ends are provided with optical fiber cable fitting, are arranged with electrocorrosion protective jacket at described optical fiber cable fitting and ADSS optical cable binding site.
This test unit pressurizes to high-voltage conducting wires by pressue device, make ADSS optical cable in high-voltage conducting wires below in high pressure coupled field, with the electric field environment in simulation ADSS optical cable actual motion, and spray salt fog by salt spray test chamber to high-voltage conducting wires and ADSS optical cable, simulate actual air pollution environment, the ADSS optical cable that electrocorrosion protective jacket is installed is tested, can be verified the improve effect of electrocorrosion protective jacket to ADSS optical cable decay resistance.
Below further technical scheme is described:
Preferably, described pressue device comprises the pressure regulator being connected with power supply, the transformer being connected with described pressure regulator, and with the protective resistance that described transformer is connected, described protective resistance is connected with high-voltage conducting wires.After the voltage that pressure regulator is adjusted, output to transformer, transformer is transferred to high-voltage conducting wires after voltage is raise, and protective resistance wherein can prevent that too high voltage is transported on high-voltage conducting wires, causes damage to testing equipment.
Preferably, described high-voltage conducting wires comprises lead electrode, and described lead electrode parallel laid is above ADSS optical cable, and described lead electrode one end connects described protective resistance, and the other end is connected on described high-voltage conducting wires.By lead electrode, high-tension electricity is input on high-voltage conducting wires, the insulation of high-voltage conducting wires two ends is fixedly installed in salt spray test chamber, and making, the input safe ready of voltage is reliable.
Preferably, also comprise data collector, described data collector comprises stake resistance, and the data collecting card being connected with stake resistance.Collect leakage current data by data collecting card; and send data storage device and computer installation to; leakage current data is analysed and compared, and stake resistance can be protected data collector etc. simultaneously, prevents that excessive leakage current from causing damage to relevant test unit.
Preferably, described salt spray test chamber comprises casing, the salt spray generator being connected with described casing, described salt spray generator comprises salt hot-water heating system, the brine tank being connected with described salt hot-water heating system, the salt fog generator being connected with described brine tank, described salt fog generator is connected with the casing of salt spray test chamber.Heat to the salt solution in brine tank by heating arrangement, and be sprayed onto on the high-voltage conducting wires and ADSS optical cable in salt spray test chamber by salt fog generator generation salt fog.
Preferably, also comprise tensioner, described tensioner comprises puller system, and described puller system is connected in described ADSS optical cable two ends.With puller system, by stretching ADSS optical cable, under simulation practical operation situation, the situation of ADSS optical cable bearing tension on shaft tower makes test condition approach true environment, the accuracy of warranty test as far as possible.
The invention provides a kind of ADSS optical cable test method, its technical scheme is as follows:
A kind of ADSS optical cable test method, comprises the steps: high-voltage conducting wires and the ADSS optical cable that electrocorrosion protective jacket is installed to be installed in salt spray test chamber;
Spray salt fog by salt spray generator to the high-voltage conducting wires in salt spray test chamber and ADSS optical cable, pressurize to high-voltage conducting wires by pressue device;
Measure the leakage current of optical fiber cable fitting earth terminal, and the ADSS optical cable electrocorrosion situation of observing earth terminal.
Below further technical scheme is described:
Preferably, cross data collector and gather the leakage current data of optical fiber cable fitting earth terminal, and record the data that collect by data storage apparatus, use the leakage current data of Computer Analysis record.The leakage current of ADSS optical cable is carried out to real-time tracing analysis, the concrete corrosion condition of Observable optical cable.
Preferably, analyze at times the corrosion condition of leakage current data and ADSS optical cable.The current leakage situation of the time period that Measurement and analysis is different, and observe the corrosion condition of optical cable appearance, analyze with this corrosion condition that judges optical cable, to reach test objective.
The present invention has following outstanding advantages: this testing program can be simulated actual working conditions realistically, detect exactly the performance (comprising the corrosion condition that it is concrete) of ADSS optical cable electrocorrosion protective jacket, testing program is complete, measure accurately reliable, also can be used for other and similarly detect test, there is versatility.
Brief description of the drawings
Fig. 1 is the schematic diagram of ADSS optical cable test unit described in the embodiment of the present invention;
Fig. 2 is the partial schematic diagram of ADSS optical cable test unit described in the embodiment of the present invention;
Fig. 3 a is the measured leakage current oscillogram of ADSS optical cable test unit described in the embodiment of the present invention;
Fig. 3 b is the measured leakage current oscillogram of ADSS optical cable test unit described in the embodiment of the present invention;
Fig. 4 is the measured Leakage Current mean value curve of ADSS optical cable test unit described in the embodiment of the present invention;
Fig. 5 is the measured average filthy resistance variations curve of ADSS optical cable test unit described in the embodiment of the present invention.
Description of reference numerals:
100-pressue device, 110-pressure regulator, 120-transformer, 130-protective resistance, 200-salt spray test chamber, 210-wire, 212-lead electrode, 214-insulator, 220-ADSS optical cable, 222-optical fiber cable fitting, 224-protective jacket, 230-stake resistance.
Embodiment
Below embodiments of the invention are elaborated:
As shown in Figure 1 to Figure 2, the invention provides a kind of test unit of the ADSS of simulation optical cable actual operating state, by analyzing the electromagnetic field distribution situation under practical operation situation of optical cable, analyze the reason of optical cable broken string, whether qualifiedly detect Cable jacket materials simultaneously.
This ADSS optical cable test unit, include pressue device 100, tensioner (not shown), salt spray generator (not shown) and salt spray test chamber 200, and be arranged on the high-voltage conducting wires 210 in salt spray test chamber 200, pressue device 100 is connected with high-voltage conducting wires 210, and tensioner is connected with salt spray test chamber 200 respectively with salt spray generator.In this salt spray test chamber 200, be provided with the high-voltage conducting wires 100 being electrically connected with pressue device 100, and be arranged in salt spray test chamber 200 and be positioned at the ADSS optical cable 220 of high-voltage conducting wires 210 belows.Two ends of this optical cable are equipped with optical fiber cable fitting 222, and at the sheathed semi-conductor electricity corrosion protection cover 224 in the exit of optical fiber cable fitting 222.
This test unit pressurizes to high-voltage conducting wires 210 by pressue device 100, make ADSS optical cable 220 in high-voltage conducting wires 210 belows in high pressure coupled field, with the electric field environment in simulation ADSS optical cable actual motion, and spray salt fog by salt spray test chamber 200 to high-voltage conducting wires 210 and ADSS optical cable 220, simulate actual air pollution environment, the ADSS optical cable 220 that electrocorrosion protective jacket 224 is installed is tested, to test the decay resistance of this ADSS optical cable 220.In process of the test, ADSS optical cable 220 and electrocorrosion protective jacket 222 are sprayed to salt fog, optical fiber cable fitting end ground connection the harvester by respective design are automatically sampled, are stored Leakage Current.
Pressue device 100 comprises the pressure regulator 110 being connected with power supply, the transformer 120 being connected with pressure regulator 110, and the protective resistance 130 being connected with transformer 120, protective resistance 130 is connected with high-voltage conducting wires 210.After the voltage that pressure regulator 110 is adjusted, output to transformer 120, transformer 120 is transferred to high-voltage conducting wires 210 after voltage is raise, and protective resistance 130 wherein can prevent that too high voltage is transported on high-voltage conducting wires 210, causes damage to testing equipment.In addition, pressue device 100 also comprises control desk, and pressue device is connected with step down side by control desk through the protective resistance connection transformer high-pressure side of 10K Ω, power to high-voltage conducting wires 210.Pressue device 100 is connected with high-voltage conducting wires by electrode, can simulate really the running environment of optical cable reality, can make the more realistic requirement of test, tests more true and reliable.
Known; in salt spray test chamber 200; high-voltage conducting wires 210 comprises lead electrode 212; this lead electrode 212 is that metal (is copper pipe herein; also can be the metal that other electric conductivities are good); be laid on ADSS optical cable 220 directly over, its one end connects protective resistance 130, the other end is connected in high-voltage conducting wires 210 main bodys.By lead electrode 212, high-tension electricity is input in high-voltage conducting wires 210 main bodys, high-voltage conducting wires 210 two ends are fixedly installed in salt spray test chamber 200 by insulator 214 insulation, and wire is carried out to insulation protection, make the input safe ready of voltage reliable.
ADSS optical cable 220 be directly suspended on metal high voltage wire 210 under (the two be arranged in parallel), go out ADSS optical cable 220 suffered electric field intensity under actual conditions by ANSYS Software simulation calculation in advance, then adjust the electric field intensity of optical cable by the distance of controlling between optical cable and wire, thereby simulate the residing electric field environment of optical cable under actual condition.These ADSS optical cable 220 one end are provided with optical fiber cable fitting 222, are arranged with optical cable electrocorrosion protective jacket 224 at optical fiber cable fitting 222 and ADSS optical cable binding site.In addition, be also connected with tensioner (not shown) at these ADSS optical cable 220 two ends, this tensioner comprises puller system, and puller system is connected in ADSS optical cable 220 two ends.With puller system, by stretching ADSS optical cable, under simulation practical operation situation, the situation of ADSS optical cable 220 bearing tension on shaft tower makes test condition approach true environment, the accuracy of warranty test as far as possible.
In this test unit, salt spray test chamber 200 has a casing, and above-mentioned ADSS optical cable and high-voltage conducting wires etc. are all arranged in this casing, and the salt spray generator (not shown) being connected with casing.Salt spray generator comprises salt hot-water heating system, the brine tank being connected with salt hot-water heating system, and the salt fog generator being connected with brine tank, salt fog generator is connected with salt spray test chamber.Heat to the salt solution in brine tank by heating arrangement, and be sprayed onto on the high-voltage conducting wires and ADSS optical cable in salt spray test chamber by salt fog generator generation salt fog.In addition, be also included in the temperature measuring equipment that salt spray test chamber and salt fog generator internal table face are equidistantly evenly arranged, and the intelligent salt fog controller being connected with salt fog generator, salt hot-water heating system and temperature measuring equipment.And, between this salt spray generator and salt-fog test box body, be also connected with salt fog conveying device, this salt fog conveying device one end is connected with salt fog generator, the other end is connected with salt-fog test box body, and the salt fog that this salt fog conveying device generates salt spray generator is transported to salt spray test chamber box house.
Produce salt fog and be transported to the process of salt spray test chamber box house as follows by above-mentioned salt spray generator: salt hot-water heating system heats the salt solution in brine tank; Temperature measuring equipment detects the brine temp in brine tank, and testing result is fed back to control device; Whether control device starts work according to the feedback result control salt hot-water heating system of temperature measuring equipment; And brine tank provides salt solution to salt fog generator, the gases at high pressure that provide with air compressor break into uniform water smoke water droplet in aerosol producer, then salt fog are supplied to salt spray test chamber box house and test.Generate salt fog by salt spray generator, and by salt fog transmitting device, salt fog is delivered to salt spray test chamber box house; Test feedback assembly the salt fog settling amount of salt spray test chamber box house is measured, and by measured result feedback to control device; The salt fog amount of the output control salt spray generator that control device feeds back according to test feedback assembly.Above-mentioned temperature-measuring control device comprises multiple detecting sensors, and detecting sensor is placed in described salt spray test chamber box house, can detect salt fog cabinet box house concentration of saline fog, thereby feed back to control device.
In addition, this test unit also comprises data collector (not shown), and it comprises stake resistance 230, and the data collecting card being connected with stake resistance 230.Data collector used; by utilizing the data collecting card of LABVIEW coding; automatically gather and preserve the Leakage Current data of testing; and send data storage device and computer installation to; leakage current data is carried out to analysis and arrangement; stake resistance 230 can be protected data collector etc. simultaneously, prevents that excessive leakage current from causing damage to relevant test unit.
In addition, the present invention also proposes a kind of ADSS optical cable test method, comprises the steps:
High-voltage conducting wires 210 and the ADSS optical cable 220 that electrocorrosion protective jacket 224 is installed are installed in salt spray test chamber 200;
Spray salt fog by salt spray generator to the high-voltage conducting wires 210 in salt spray test chamber 200 and ADSS optical cable 220, pressurize to high-voltage conducting wires 210 by pressue device 100;
Measure the leakage current of optical fiber cable fitting 222 earth terminals, and the ADSS optical cable electrocorrosion situation of observing earth terminal.Gather the leakage current of optical fiber cable fitting earth terminal by data collector, and record by data storage apparatus the data that collect, use computing machine to analyze the leakage current data of record.The leakage current data of optical cable is carried out to real-time tracing analysis, the concrete corrosion condition of Observable optical cable.And the corrosion condition of the leakage current data to optical fiber cable fitting earth terminal and ADSS optical cable is analyzed relatively at times.The current leakage situation of the time period that Measurement and analysis is different, and observe the corrosion condition of optical cable appearance, analyze with this corrosion condition that judges ADSS optical cable, to reach test objective.
Particularly, for probing into the effect that electrocorrosion protective jacket 224 plays optical cable in actual condition of ADSS optical cable, dry arc discharge phenomenon on ADSS optical cable is simulated in supertension line electric field in this test in laboratory.The mode of coupling pressurization is taked in test, sets up high-voltage conducting wires 210 above ADSS optical cable 220, makes ADSS optical cable 220 be placed in high pressure coupled field.The electrocorrosion that optical cable has been carried out 100 hours detects test, for this programme being produced be enough to cause harmful dry electric arc, ADSS optical cable 220 is fixed on than the higher electromotive force space of the ceiling voltage allowing in its actual installation with initiation electrocorrosion.ADSS optical cable is sprayed to salt fog simultaneously, load 22kV voltage, test period 100 hours.Concrete test method is as follows:
Installation is ready to relevant testing equipment, ADSS optical cable 220 levels are fixed, with high-voltage conducting wires 210 keeping parallelisms that are erected at ADSS optical cable 220 tops, and keep optical cable without sag (use tensioner by stretching ADSS optical cable, tension force is not the principal element that affects optical cable electrocorrosion);
Brine concentration as required carries out the preparation of NaCl solution, and the salt solution preparing is poured in brine tank.Flow is adjusted to every cubic metre of salt-fog chamber's volume of 0.5 ± 0.1L/h(), regulate again salt-fog test, spraying plant in 200, make shower nozzle and sample (being ADSS optical cable) axis at 45 °, salt fog is evenly sprayed, and make expulsion pressure basicly stable, allow salt spray test chamber box house be full of salt fog;
Transformer 120 High voltage outputs are terminated on the lead electrode 212 of high-voltage conducting wires 210, wire adopts the stainless-steel tube that diameter is 2cm, makes wire and ADSS optical cable axis keeping parallelism, and conductor spacing optical cable spacing is 8cm, applies 22KV magnitude of voltage.Before on-test, clean behind optical cable surface with paper handkerchief or immersion towel, carry out salt mist experiment.Start after spraying, in process of the test, keep voltage constant;
Testing salt solution used must not recycle, and brine tank capacity 60L interrupts one time viewing test continuously after 15h, carries out salt fog solution and supplements, and records experimental phenomena and data simultaneously.Test and must not exceed 15min each break period, do not calculate break period within the T.T. of test.
Main experimental equipment is as follows: salt spray test chamber, in case, be provided with two spraying points, and have a ventilating opening, box house temperature is controlled simultaneously, saline reservoir capacity 60L; The testing transformer no-load voltage ratio that pressue device adopts is 500:1, the highest high pressure that can on-load voltage 50kV; Data collector, its earth terminal connects 500 Ω stake resistances, and data collecting card input end is connected on stake resistance two ends and is directly connected with computing machine, and Real-time Collection also records ADSS optical cable surface Leakage Current value.Concrete test parameters is as shown in table 1 below:
Table 1 test parameters
Test size arranges as shown in table 2 below:
Table 2 data parameters
| ? | Ground height (m) | Diameter (m) |
| Wire | 0.55 | 0.02 |
| ADSS optical cable | 0.47 | 0.016 |
The sample of test is 48 sandwich layer stranded cables, external diameter 16mm, and oversheath thickness is 1.7mm, sample length 1.8m, end adds gold utensil and electricity consumption corrosion protection cover wraps gold utensil end.
By coupling applied voltage test, optical cable only has slight electric discharge phenomena without significant change in first 30 hours, and after 60 hours, calcination whiting appears in the more frequent and close earth terminal optical cable exocuticle of optical cable electric discharge.After 100 hours, optical cable surface presents spark tracking, and sheath exit occurs that tree-shaped slight crack has slight signs of corrosion.By on high pressure lead-in conductor, put ADSS optical cable in salt-fog test box body, keep it fixing without sag, the concrete variation phenomenon that test is carried out utilizing data collector and naked-eye observation to obtain after 100h is as follows:
(1) after on-test, 10 hours optical cable discharge currents are less, there is no obvious electric discharge phenomena.The current value collecting is less, and maximum Leakage Current only reaches 0.6mA.OOBA (out of box audit), optical cable surface is intact, and without any galvanic corrosion vestige, there is iron rust in the aglet that insulated electro corrosion protection puts installation;
(2) after 20 hours, electrocorrosion protective jacket exit is without obvious electric discharge phenomena in test, and optical cable surface is without the sign that obviously discharges.Maximum leakage electric current is 2mA.Insulated electro corrosion protection cover aglet rusty stain is deepened;
(3) 40 hours optical cable Discharge Phenomenas are carried out in test, and electric arc appears in electrocorrosion protective jacket end, and Leakage Current maximum reaches 8mA.OOBA (out of box audit), there is more shallow tree-shaped corrosion slight crack in gold utensil exit.There is harsh feeling on optical cable surface.The aglet of electrocorrosion protective jacket is got rusty more serious;
(4) through 80 hours electrolytic corrosion tests, Leakage Current increases more obvious before, and electric arc occurs frequent, and maximum discharge current reaches 15mA.Optical cable exocuticle is compared before and is occurred obvious tree-shaped corrosion cracking, darker band.There is obvious tree-shaped corrosion cracking in electrocorrosion protective jacket exit 2-13cm, and has more evidence of corrosion in various degree apart from electrocorrosion protective jacket outlet 2-23cm place.And the aglet situation of getting rusty increases the weight of;
(5) through 100 hours electrolytic corrosion tests, Leakage Current obviously increased, and electric arc occurs more frequent, and maximum discharge current reaches 20mA.Optical cable exocuticle is compared before and is occurred obvious tree-shaped corrosion cracking, darker band.There is obvious tree-shaped corrosion cracking in electrocorrosion protective jacket exit 2-13cm, and has more evidence of corrosion in various degree apart from electrocorrosion protective jacket outlet 2-23cm place.And the aglet situation of getting rusty is more serious.
Test and in whole process, recorded altogether 200,000 current values.By the Leakage Current numerical value of record is carried out to statistical treatment, provide the typical current waveform in its corresponding time period, as shown in accompanying drawing Fig. 3 a and Fig. 3 b.
For the electric current typical case signal from the stage every 10 hour of on-test.Can find out, within first 20 hours, electric current does not almost have discharge scenario.Had Leakage Current to start to increase since 30 hours, maximum current is 2.8mA.Test had discharge scenario frequently since 40 hours, and maximum Leakage Current can reach 15mA.After 40 hours, optical cable discharge current obviously increases, and electric discharge is simultaneously frequent, and in the time of 80 hours, maximum discharge current can reach 15mA.Thereafter until off-test discharge scenario is all very obvious, Leakage Current is also larger.Per time period leakage current mean value and filthy resistance mean variation are as shown in table 3 below:
Table 3 leakage current mean value and filthy resistance mean value
In test, use nozzle with firm discharge to ADSS optical cable sprayed salt mist with simulation salt fog test box body inside pollution situation.As shown in Figure 4 and Figure 5, ADSS optical cable surface resistance, along with the time increases and reduces, reaches its asymptotic minimum value R=4.8*10 after 38 hours
6Ω simultaneously test findings also shows, optical cable surface resistance R value is in 4*10
6-2.5*10
6when Ω, electrocorrosion is the strongest.
By testing program provided by the invention, can simulate realistically actual working conditions, accurately detect the performance of ADSS optical cable electrocorrosion protective jacket, it is its situation of effectively preventing and alleviating the electrocorrosion of ADSS optical cable, testing program is complete, measure accurately and reliably, also can be used for other and similarly detect test, there is versatility.Except the situation that can be provided with electrocorrosion protective jacket to ADSS optical cable is tested, can also test the situation that protective jacket is not set, be analyzed with this electric discharge corrosive attack that protective jacket is set.In addition, can also test detection to the optical cable under other analogues.In addition, pressue device, salt spray test chamber, tensioner can carry out corresponding adjusting according to the working condition of ADSS optical cable actual motion, are applicable to the ADSS optical cable electrocorrosion simulated experiment under different operating modes.
The above embodiment has only expressed the specific embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (9)
1. an ADSS optical cable test unit, it is characterized in that, comprise pressue device, salt spray test chamber, in described salt spray test chamber, be provided with the high-voltage conducting wires being electrically connected with described pressue device, and be arranged in described salt spray test chamber and be positioned at the ADSS optical cable of described high-voltage conducting wires below, described ADSS optical cable two ends are provided with optical fiber cable fitting, are arranged with electrocorrosion protective jacket at described optical fiber cable fitting and ADSS optical cable binding site.
2. ADSS optical cable test unit according to claim 1; it is characterized in that, described pressue device comprises the pressure regulator being connected with power supply, the transformer being connected with described pressure regulator; with the protective resistance that described transformer is connected, described protective resistance is connected with high-voltage conducting wires.
3. ADSS optical cable test unit according to claim 2; it is characterized in that, described high-voltage conducting wires comprises lead electrode, and described lead electrode parallel laid is above ADSS optical cable; described lead electrode one end connects described protective resistance, and the other end connects described high-voltage conducting wires.
4. ADSS optical cable test unit according to claim 1, is characterized in that, also comprise data collector, described data collector comprises stake resistance, and the data collecting card being connected with stake resistance.
5. ADSS optical cable test unit according to claim 1, it is characterized in that, described salt spray test chamber comprises casing, the salt spray generator being connected with described casing, described salt spray generator comprises salt hot-water heating system, the brine tank being connected with described salt hot-water heating system, the salt fog generator being connected with described brine tank, described salt fog generator is connected with the casing of salt spray test chamber.
6. ADSS optical cable test unit according to claim 1, is characterized in that, also comprise tensioner, described tensioner comprises puller system, and described puller system is connected in described ADSS optical cable two ends.
7. an ADSS optical cable test method, is characterized in that, comprises the steps:
High-voltage conducting wires and the ADSS optical cable that electrocorrosion protective jacket is installed are installed in salt spray test chamber;
Spray salt fog by salt spray generator to the high-voltage conducting wires in salt spray test chamber and ADSS optical cable, pressurize to high-voltage conducting wires by pressue device;
Measure the leakage current of optical fiber cable fitting earth terminal, and the ADSS optical cable electrocorrosion situation of observing earth terminal.
8. ADSS optical cable test method according to claim 7, it is characterized in that, gather the leakage current data of optical fiber cable fitting earth terminal by data collector, and record by data storage apparatus the data that collect, use the leakage current data of Computer Analysis record.
9. ADSS optical cable test method according to claim 7, is characterized in that, analyzes at times the corrosion condition of leakage current data and ADSS optical cable.
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| 赵元珍: "青海察尔汗盐湖地区ADSS光缆腐蚀及解决方法的探讨", 《西北水电》, no. 01, 28 February 2012 (2012-02-28), pages 53 - 55 * |
| 高维忠等: "河南电网ADSS光缆电腐蚀防护", 《电力系统通信》, vol. 29, no. 188, 30 June 2008 (2008-06-30), pages 1 - 4 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675480A (en) * | 2016-04-15 | 2016-06-15 | 国网山东省电力公司章丘市供电公司 | ADSS optical cable electrocorrosion resisting experiment detection equipment |
| WO2021036762A1 (en) * | 2019-08-30 | 2021-03-04 | 国网福建省电力有限公司 | Test platform for artificial simulation of cable damage in strong-wind coastal environment |
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