CN105242363A - Intelligent substation for severe cold areas - Google Patents

Intelligent substation for severe cold areas Download PDF

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Publication number
CN105242363A
CN105242363A CN201410327298.7A CN201410327298A CN105242363A CN 105242363 A CN105242363 A CN 105242363A CN 201410327298 A CN201410327298 A CN 201410327298A CN 105242363 A CN105242363 A CN 105242363A
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CN
China
Prior art keywords
cable
optical fiber
layer
stern fast
optical
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.)
Pending
Application number
CN201410327298.7A
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Chinese (zh)
Inventor
李朝顺
万青
沈晔华
张家毅
陈宝琪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Shenyang Power Supply Co of State Grid Liaoning Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Shenyang Power Supply Co of State Grid Liaoning Electric Power Co Ltd
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Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Shenyang Power Supply Co of State Grid Liaoning Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201410327298.7A priority Critical patent/CN105242363A/en
Publication of CN105242363A publication Critical patent/CN105242363A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16Electric power substations

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  • Communication Cables (AREA)

Abstract

An intelligent substation for severe cold areas belongs to the technical field of power distribution, and specifically relates to an improvement in the intelligent substation structure. The invention provides an intelligent substation applicable to severe cold areas. The intelligent substation comprises a station control layer, an interval layer and a process layer. The intelligent substation is characterized in that an intelligent component is connected with an outdoor optical fiber distribution frame through an outdoor tail cable; the outdoor optical fiber distribution frame is connected with an indoor optical fiber distribution frame in an indoor secondary equipment room through an optical cable; the indoor optical fiber distribution frame is connected with a protection device through an indoor tail cable; and the outdoor tail cable and the indoor tail cable are both composed of a first optical fiber, a TPEE tight sleeve, a tail cable strengthening layer, a heat preservation layer and a tail cable outer sheath; the optical cable comprises second optical fibers; and the second optical fibers are sequentially coated with loose casings, a first water blocking tape, an optical cable strengthening layer, an optical cable inner sheath, a buffering layer, a second water blocking tape and an optical cable outer sheath.

Description

Severe cold area intelligent substation
Technical field
The invention belongs to distribution technique field, especially relate to a kind of improvement of intelligent substation structure.
Background technology
Along with deepening continuously of intelligent grid construction, intelligent substation has become the important step in intelligent grid, how to improve intelligent substation stability, reliability and safety is current projector's probing direction.One of advantage of intelligent substation is to replace conventional substation control cables with good communication quality, stable, cheap optical cable.Along with putting into operation of a large amount of intelligent substation, the intelligent substation of the outdoor arrangement form in northern frore area highlights increasing particular problem, as not easily ensured the operating ambient temperature of outdoor intelligent terminal, outdoor optical cable, stern fast frost heaving, optical cable, power cable, control cables fall into disarray etc. in outdoor cable ditch.
The merge cells of process layer devices and the normal operation circumstances temperature of intelligent terminal are-25 DEG C ~ 55 DEG C, outdoor temperature in northern frore area can reach less than-30 DEG C, extreme temperature can reach-45 DEG C even lower, is difficult to the environment temperature requirement ensureing process layer devices.
The optical cable frost heave situation of cable installation in pipe.Central plain area, annual minimum temperature is generally at-7 DEG C ~-8 DEG C, and such temperature is all not enough to cause great communication quality to affect on optical fiber cable for direct burial, aerial optical cable and duct optical cable under normal circumstances.But in high latitude severe cold area, as Yichun, Heilongjiang Province, like that the regional minimum mean daily temperatures such as brightness reach-37 DEG C, the regional minimum mean daily temperatures such as Hailaer, the Inner Mongol once reached-42.5 DEG C, the phenomenon occurring winter causing because freezing fibre circuit loss to increase or block completely sometimes, has had a strong impact on communication quality and can passband index.Find in practice, the blocking-up naturally produced because freezing or loss increase the period in some nights to morning of time most sudden drop in temperature or the continuous low temperature in the winter time that fault occurs, and the position of trouble spot is all worn in the steel pipe of protection steel pipe outside optical cable.Observe trouble spot optical cable, optical cable profile has partially bent distortion, what have through artificial treatment can recover, but is mostly difficult to restore.Again anatomic observation is carried out to optical cable, find fault point, the pipe gross distortion of moulding had even breaks, mould pipe in fibre core have cataclasm, the twisted distortion had, causes Optical Fiber Transmission obstacle thus.
The frost heave situation of outdoor stern fast.According to investigation, at the end of 2011, tell the phenomenon that there occurs the bursting by freezing of outdoor Intelligent component cabinet stern fast in 220kV substation project at Meng Dongshebai.Learn according to crash analysis, in outdoor Intelligent component cabinet, the work accommodation temperature of stern fast is-25 DEG C ~ 70 DEG C, and Shebotu area winter minimum temperature reaches-32 DEG C, although outdoor Intelligent component cabinet takes the measure such as Dual-layer insulation board, cabinet internal heater, but in the process of repair and maintenance cabinet door, still cannot ensure the operating ambient temperature of stern fast, thus bursting by freezing occurs.
Analyze accordingly, under the environment temperature below-25 DEG C, the stern fast part in outdoor Intelligent component cabinet is the weak link of optical cable connection procedure.
Defect arranged by outdoor cable ditch.Intelligent substation project was progressively carried out in recent years, according to 220kV transformer station new construction working-yard feedback information, often there is following several problem in cable duct: cable laying layering is unreasonable, the interior intersection of cable laying ditch, fire prevention channel box arrangement position not science.
Summary of the invention
The present invention is exactly for the problems referred to above, makes up the deficiencies in the prior art, provides a kind of a kind of severe cold area intelligent substation being applicable to severe cold area and using.
For realizing above-mentioned purpose of the present invention, the present invention adopts following technical scheme.
The present invention includes station level, wall and process layer, station level is made up of hold concurrently operator station, telemechanical communicator, the network printer of main frame; Wall by protecting, observing and controlling, metering, failure wave-recording and message analysis system form; Station level and wall composition protective device, be arranged on secondary device indoor; Process layer is made up of merge cells, intelligent terminal, merge cells and intelligent terminal form intelligent assembly, be arranged in Intelligent component cabinet, its structural feature is: described Intelligent component cabinet is the outdoor double-layer heat insulation rack of PentairMODO, intelligent assembly is connected with outdoor fibre distribution frame by outdoor stern fast, outdoor fibre distribution frame is connected with the indoor optical-fibre distributing frame in indoor secondary canyon by optical cable, indoor optical-fibre distributing frame is connected with protective device by indoor stern fast, and described optical cable is arranged in optical cable groove; Described outdoor stern fast and indoor stern fast tightly overlap by the first optical fiber, TPEE, stern fast insulation course, stern fast enhancement Layer, heat-insulation layer and stern fast oversheath are formed, first outer fiber sets gradually that TPEE tightly overlaps, stern fast insulation course, stern fast enhancement Layer, heat-insulation layer, stern fast oversheath, described stern fast oversheath is TPU oversheath, and described stern fast enhancement Layer is Du Pont's aramid fiber enhancement Layer; Described optical cable comprises the second optical fiber, second optical fiber is coated with Loose tube, the first waterstop, optical cable enhancement Layer, optical cable inner sheath, cushion, the second waterstop, steel-tape armouring layer and cable outer sheath outward successively, described cable outer sheath is LSZH oversheath, fine cream is filled with between the second optical fiber and Loose tube, first waterstop inside has been provided with central reinforce member, first waterstop and be filled with cable cream between Loose tube and central reinforce member, described optical cable enhancement Layer is aramid fiber enhancement Layer.
As a kind of preferred version, described Loose tube adopts PC/PBT composite bushing.This structural casing has good temperature performance, and mechanical property is strong, and optical cable can be made to meet high and cold and that temperature difference major region is very severe running environment.
As another kind of preferred version, described stern fast insulation course is IXPE insulation course; IXPE insulation course Acclimation temperature performance is good, and physical strength is high.
As another preferred version, described heat-insulation layer is curled into drum by the soft long fibre graphite felt of strip and block and forms.
As another preferred version, described optical cable enhancement Layer adopts aramid fiber reinforcement; Described central reinforce member adopts GRP central reinforce member, the temperature expansion coefficient of GRP is very little, the PC/PBT composite double layer sleeve pipe of excellent performance, fully meeting under tensile force and high-temperature expansion require, the strict excess fiber length controlling sleeve pipe, appropriate design cable core is stranded remaining long.
As another preferred version, in described optical cable groove, be provided with steelframe, steelframe be disposed with the first control cables frame, the second control cables frame, power cable frame and optical fiber duct carriage from bottom to top, optical fiber duct carriage be provided with optical fiber duct box.
As another preferred version, be provided with in the first waterstop four, in be provided with the Loose tube of the second optical fiber, described central reinforce member is arranged between four Loose tube.
As another preferred version, the liquid crystal panel of described merge cells, intelligent terminal adopts low-temperature heat LCDs.
As another preferred version, described optical cable inner sheath is PE inner sheath.
Compared with prior art beneficial effect of the present invention.
1, stern fast and the optical cable problem of frost heave of outdoor Intelligent component cabinet under low-temperature condition can be solved.
For solve be mainly used in low-temperature condition under the stern fast of outdoor Intelligent component cabinet and optical cable problem of frost heave.Outdoor stern fast of the present invention and indoor stern fast tightly overlap by the first optical fiber, TPEE, stern fast enhancement Layer, heat-insulation layer and stern fast oversheath are formed, first outer fiber sets gradually that TPEE tightly overlaps, stern fast enhancement Layer, heat-insulation layer, stern fast oversheath, described stern fast oversheath is TPU oversheath, and described stern fast enhancement Layer is Du Pont's aramid fiber enhancement Layer.Be curled into the heat-insulation layer of drum in stern fast enhancement Layer outer cladding by the soft long fibre graphite felt of strip and block, then the structure of oversheath is set outside heat-insulation layer, make the adaptable temperature of stern fast reach-40 DEG C ~+85 DEG C.
Optical cable of the present invention comprises the second optical fiber, second optical fiber is coated with Loose tube, the first waterstop, optical cable enhancement Layer, optical cable inner sheath, cushion, the second waterstop, steel-tape armouring and LSZH oversheath outward successively, fine cream is filled with between the second optical fiber and Loose tube, first waterstop inside has been provided with central reinforce member, waterstop and be filled with cable cream between Loose tube and central reinforce member, described optical cable enhancement Layer is aramid fiber enhancement Layer.Optical cable pliability at low ambient temperatures can be ensured, meet cold operation condition.It runs adaptable environment temperature is-40 DEG C ~+70 DEG C.
In addition, Intelligent component cabinet of the present invention adopts the outdoor double-layer heat insulation rack of PentairMODO, the outdoor double-layer heat insulation rack of PentairMODO is mainly through the improvement to Cooling Design, improve cooling effectiveness and the serviceable life of rack, doubling plate design makes the cooling cost of rack lower, ensure that air flowing freely between inside and outside biside plate, form convection current.Save the requirement of additional cooling device to a certain extent, the heat that the solar irradiation having intercepted 85% brings.Adopt thickness to reach the fire-retardant heat insulation layer of 29 ~ 35mm in cabinet, under cope with bad synoptic climate condition (-40 DEG C ~ 55 DEG C), ensure that interior of equipment cabinet temperature is 26 DEG C ~ 30 DEG C, and the temperature control energy of 75% can be saved than common rack.
The lower temperature resistance of the electronic equipment such as merge cells, intelligent terminal is mainly reflected in the characteristic of its liquid crystal panel, the outdoor electronic equipment of severe cold area of the present invention intelligent substation adopts low-temperature heat LCDs, the steady operation range of stability of low-temperature heat liquid crystal is-30 DEG C ~ 70 DEG C, it is comparatively loose to the claimed range of environment temperature, is conducive to the expansion of its usable range.
Therefore, cryoprotective effects of the present invention clearly, is adapted at severe cold area and uses.
2, the water resistance of optical cable can be increased, solve optical cable compressive property poor, easily by the problem of mouse, the destruction such as artificial.
For increasing the water resistance of optical cable, solve optical cable compressive property poor, easily by the problem of mouse, the destruction such as artificial.The present invention by arranging the first waterstop, the two-layer stop water of the second waterstop increases the water resistance of optical cable.Simultaneously, aramid fiber reinforcement is adopted in the first waterstop outside, described central reinforce member adopts GRP central reinforce member, in addition at the outside coated steel band armor of the second waterstop, the performances such as the crushing resistance of optical cable, mouse bite preventing are increased greatly, reduce optical fiber impaired, avoid the problems such as Transmission, ensure that optical fiber transmission property is steady in a long-term.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is structural representation of the present invention.
Fig. 3 is stern fast structural representation of the present invention.
Fig. 4 is cable configuration schematic diagram of the present invention.
Fig. 5 is cable duct groove structure schematic diagram of the present invention.
Wherein, 1 is protective device, 2 is secondary device room, 3 is indoor stern fast, 4 is indoor optical-fibre distributing frame, 5 is optical cable, 6 is optical cable groove, 7 is Intelligent component cabinet, 8 is intelligent assembly, 9 is outdoor stern fast, 10 is outdoor fibre distribution frame, 11 is the first optical fiber, 12 tightly overlap for TPEE, 13 is stern fast insulation course, 14, for stern fast enhancement Layer, 15 is heat-insulation layer, 16 is stern fast oversheath, 17 is cable outer sheath, 18 is steel-tape armouring layer, 19 is the second waterstop, 20 is cushion, 21 is optical cable inner sheath, 22 is optical cable enhancement Layer, 23 is the first waterstop, reinforcement centered by 24, 25 is Loose tube, 26 is the second optical fiber, 27 is steelframe, 28 is the first control cables frame, 29 is the second control cables frame, 30 is power cable frame, 31 is optical fiber duct carriage, 32 is optical fiber duct box.
Embodiment
The present invention includes station level, wall and process layer, station level is made up of hold concurrently operator station, telemechanical communicator, network printer equipment of main frame; Wall by protecting, observing and controlling, metering, failure wave-recording and message analysis system form, station level and wall composition protective device, be arranged in secondary device room 2; Process layer is made up of merge cells, intelligent terminal, merge cells and intelligent terminal form intelligent assembly 8, be installed in Intelligent component cabinet 7, described Intelligent component cabinet 7 is the outdoor double-layer heat insulation rack of PentairMODO, intelligent assembly 8 is connected with outdoor fibre distribution frame 10 by outdoor stern fast 9, outdoor fibre distribution frame 10 is connected with the indoor optical-fibre distributing frame 4 of indoor secondary canyon 2 by optical cable 5, indoor optical-fibre distributing frame 4 is connected with protective device 1 by indoor stern fast 3, and described optical cable 5 is arranged in optical cable groove 6; Described outdoor stern fast 9 and indoor stern fast 3 tightly overlap 12 by the first optical fiber 11, TPEE, stern fast insulation course 13, stern fast enhancement Layer 14, heat-insulation layer 15 and stern fast oversheath 16 are formed, first optical fiber 11 outside sets gradually that TPEE tightly overlaps 12, stern fast insulation course 13, stern fast enhancement Layer 14, heat-insulation layer 15, stern fast oversheath 16, and described heat-insulation layer is curled into drum by the soft long fibre graphite felt of strip and block and forms; Described stern fast insulation course is IXPE insulation course; IXPE insulation course Acclimation temperature performance is good, and physical strength is high; Described stern fast oversheath 16 is TPU oversheath, and described stern fast enhancement Layer 14 is Du Pont's aramid fiber enhancement Layer; Described optical cable 5 comprises the second optical fiber 26, second optical fiber 26 is outer is coated with Loose tube 25, first waterstop 23, optical cable enhancement Layer 22, optical cable inner sheath 21, cushion 20, second waterstop 16, steel-tape armouring layer 18 and cable outer sheath 17 successively, described cushion 20 adopts polyethylene buffer layer, described optical cable inner sheath 21 is PE inner sheath, described cable outer sheath 17 is LSZH oversheath, and described Loose tube 25 adopts PC/PBT composite bushing; PC/PBT composite bushing has good temperature performance, and mechanical property is strong, and optical cable can be made to meet high and cold and that temperature difference major region is very severe running environment; Fine cream is filled with between the second optical fiber 26 and Loose tube 25, first waterstop 23 inside has been provided with central reinforce member 24, first waterstop 23 and be filled with cable cream between Loose tube 25 and central reinforce member 24, described optical cable enhancement Layer 22 is aramid fiber enhancement Layer, described central reinforce member 24 adopts GRP central reinforce member, and the temperature expansion coefficient of GRP is very little.
Be provided with steelframe 27 in described optical cable groove 6, steelframe 27 be disposed with the first control cables frame 28, second control cables frame 29, power cable frame 30 and optical fiber duct carriage 31 from bottom to top, optical fiber duct carriage 31 be provided with optical fiber duct box 32.
Can arrange in the first waterstop 23 four, in be provided with the Loose tube 25 of the second optical fiber, described central reinforce member 24 is arranged between four Loose tube 25.
Described merge cells, the liquid crystal panel of intelligent terminal can adopt low-temperature heat LCDs.The lower temperature resistance of the electronic equipment such as merge cells, intelligent terminal is mainly reflected in the characteristic of its liquid crystal panel, outdoor electronic equipment adopts low-temperature heat LCDs, the steady operation range of stability of low-temperature heat liquid crystal is-30 DEG C ~ 70 DEG C, it is comparatively loose to the claimed range of environment temperature, is conducive to the expansion of its usable range.

Claims (5)

1. severe cold area intelligent substation, comprises station level, wall and process layer, and station level is made up of hold concurrently operator station, telemechanical communicator, the network printer of main frame, wall by protecting, observing and controlling, metering, failure wave-recording and message analysis system form, station level and wall composition protective device (1), be arranged in secondary device room (2), process layer is by merge cells, intelligent terminal is formed, merge cells and intelligent terminal form intelligent assembly (8), be arranged in Intelligent component cabinet (7), it is characterized in that: described Intelligent component cabinet (7) is the outdoor double-layer heat insulation rack of PentairMODO, intelligent assembly (8) is connected with outdoor fibre distribution frame (10) by outdoor stern fast (9), outdoor fibre distribution frame (10) is connected with the indoor optical-fibre distributing frame (4) in indoor secondary canyon (2) by optical cable (5), indoor optical-fibre distributing frame (4) is connected with protective device (1) by indoor stern fast (3), described optical cable (5) is arranged in optical cable groove (6), described outdoor stern fast (9) and indoor stern fast (3) tightly overlap (12), stern fast insulation course (13), stern fast enhancement Layer (14), heat-insulation layer (15) and stern fast oversheath (16) form by the first optical fiber (11), TPEE, first optical fiber (11) outside sets gradually TPEE and tightly overlaps (12), stern fast insulation course (13), stern fast enhancement Layer (14), heat-insulation layer (15), stern fast oversheath (16), described stern fast oversheath (16) is TPU oversheath, and described stern fast enhancement Layer (14) is Du Pont's aramid fiber enhancement Layer, described optical cable (5) comprises the second optical fiber (26), second optical fiber outer (26) is coated with Loose tube (25) successively, first waterstop (23), optical cable enhancement Layer (22), optical cable inner sheath (21), cushion (20), second waterstop (19), steel-tape armouring layer (18) and cable outer sheath (17), described cable outer sheath (17) is LSZH oversheath, fine cream is filled with between the second optical fiber (26) and Loose tube (25), first waterstop (23) inside has been provided with central reinforce member (24), first waterstop (23) and be filled with cable cream between Loose tube (25) and central reinforce member (24), described optical cable enhancement Layer (22) is aramid fiber enhancement Layer.
2. severe cold area according to claim 1 intelligent substation, it is characterized in that: be provided with in the first waterstop (23) four, in be provided with the Loose tube (25) of the second optical fiber (26), described central reinforce member (24) is arranged between four Loose tube (25).
3. severe cold area according to claim 1 intelligent substation, is characterized in that: described heat-insulation layer (15) is curled into drum by the soft long fibre graphite felt of strip and block and forms; Described stern fast insulation course (23) is IXPE insulation course.
4. severe cold area according to claim 1 intelligent substation, it is characterized in that: described Loose tube (25) adopts PC/PBT composite bushing, described optical cable inner sheath (21) is PE inner sheath, and described central reinforce member (24) adopts GRP central reinforce member.
5. severe cold area according to claim 1 intelligent substation, it is characterized in that: in described optical cable groove (6), be provided with steelframe (27), steelframe (27) is disposed with the first control cables frame (28), the second control cables frame (29), power cable frame (30) and optical fiber duct carriage (31) from bottom to top, optical fiber duct carriage (31) is provided with optical fiber duct box (32).
CN201410327298.7A 2014-07-10 2014-07-10 Intelligent substation for severe cold areas Pending CN105242363A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410327298.7A CN105242363A (en) 2014-07-10 2014-07-10 Intelligent substation for severe cold areas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410327298.7A CN105242363A (en) 2014-07-10 2014-07-10 Intelligent substation for severe cold areas

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Publication Number Publication Date
CN105242363A true CN105242363A (en) 2016-01-13

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CN201410327298.7A Pending CN105242363A (en) 2014-07-10 2014-07-10 Intelligent substation for severe cold areas

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111487733A (en) * 2020-04-23 2020-08-04 熊洪清 Anti-freezing heat-preservation type optical cable in extremely cold weather
CN114280744A (en) * 2021-12-27 2022-04-05 远东电缆有限公司 Optical fiber composite cable and preparation method and application thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111487733A (en) * 2020-04-23 2020-08-04 熊洪清 Anti-freezing heat-preservation type optical cable in extremely cold weather
CN114280744A (en) * 2021-12-27 2022-04-05 远东电缆有限公司 Optical fiber composite cable and preparation method and application thereof
CN114280744B (en) * 2021-12-27 2024-02-20 远东电缆有限公司 Optical fiber composite cable and preparation method and application thereof

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