CN105319660A - A down-leading optical cable protection device and protection method - Google Patents

A down-leading optical cable protection device and protection method Download PDF

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Publication number
CN105319660A
CN105319660A CN201510772569.4A CN201510772569A CN105319660A CN 105319660 A CN105319660 A CN 105319660A CN 201510772569 A CN201510772569 A CN 201510772569A CN 105319660 A CN105319660 A CN 105319660A
Authority
CN
China
Prior art keywords
optical cable
lower optical
protection tube
guard member
draw
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
CN201510772569.4A
Other languages
Chinese (zh)
Inventor
夏菲
黄笑伯
夏宗泽
宋丽
杜宁
黄兴
黄茂源
于晓旭
洪秀斌
常秀艳
曲丹阳
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
State Grid Liaoning Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Liaoning Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Liaoning Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201510772569.4A priority Critical patent/CN105319660A/en
Publication of CN105319660A publication Critical patent/CN105319660A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4429Means specially adapted for strengthening or protecting the cables
    • G02B6/44384Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

The invention relates to the field of down-leading optical cable protection and specifically provides a down-leading optical cable protection device and protection method. The down-leading optical cable protection device comprises a flow guide protector, a sealing connector, and a water seepage structure. The flow guide protector is tubular in structure and sleeves a ground leading-in part of a down-leading optical cable. The sealing connector connects the flow guide protector and the down-leading optical cable hermetically. The water seepage structure is arranged below the leading-in ground of the down-leading optical cable. The down-leading optical cable sleeved with the flow guide protector bends for a section in the water seepage structure and then the end portion is led to the ground and connected to a cable trough at the ground. The lowest end of the flow guide protector bending in the water seepage structure is provided with a drain hole. The device and the method protect down-leading optical cables from multiple aspects such as optical cable blocking and optical cable down-leading, solve the long-term problems of freezing damage and freezing breakage of the down-leading optical cables and improve the optical cable operation reliability.

Description

A kind of protective device and means of defence drawing lower optical cable
Technical field
The present invention draws lower optical ca ble protection field, particularly relates to a kind of protective device and the means of defence that draw lower optical cable.
Background technology
Optical cable long-time running under field conditions (factors); leading in cable draws after lower steel pipe enters cable conduit by piercing into; owing to drawing lower steel pipe and the shutoff of protective casing upper end is bad or plugging material weathering; lose the effect of shutoff; rainwater and excess surface water can by framework draw upper position and cable conduit enters into cable bend position; what accumulate in optical cable gradually draws lower portion, causes pipe internal water accumulation.In the winter time, cable leading lower portion steel pipe internal water accumulation can freeze, because ice body expands, causes optical cable severe crush; Due to freezing generation tension, time serious to optical cable extruding, cause optical cable to be out of shape or interrupt, and then causing attenuated optical signal, when attenuated optical signal to a certain extent time, cause channel signal to interrupt.This type of hidden danger cycle is long, find difficulty and cannot repair after breaking down, and can only take optical cable cleft grafting and again make optical cable to draw inferior measure, repair time is longer.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of protective device drawing lower optical cable, solves and draws the long-standing frost bitten of lower optical cable and freeze disconnected problem, improves optical cable reliability of operation.
Technical matters to be solved by this invention is to additionally provide a kind of means of defence drawing lower optical cable, improves optical cable safe and stable operation condition.
The present invention is achieved in that
Draw a protective device for lower optical cable, comprising:
Drainage guard member is tubular structure, is inserted in the introducing above ground portion drawing lower optical cable;
Seal connector, by drainage guard member with draw lower optical cable and be tightly connected;
Infiltration structure; be arranged on and draw the introducing of lower optical cable below ground; be arranged with optical cable bending one section of rearward end in infiltration structure under the drawing of drainage guard member to be incorporated on ground and to be connected with the cable conduit being arranged on ground, drainage guard member offers osculum in the least significant end bent in structure that seeps water.
Further, described drainage guard member comprises the first protection tube and is tightly set in and draws outside lower optical cable, and the second protection tube that size is greater than the first protection tube is set in outside the first protection tube, forms pipelined channel between the first protection tube and the second protection tube.
Further, described seal connector is a reducing pyrocondensation cap, reducing pyrocondensation cap and draw between lower optical cable and fill plugging material.
Further, described plugging material is gas-development agent.
Further, described reducing pyrocondensation cap is zip mode reducing pyrocondensation cap.
Further, described infiltration structure is communication well.
Present invention also offers a kind of means of defence drawing lower optical cable, comprise the steps:
1) lower optical cable introducing place's foundation below ground infiltration structure is being drawn;
2) lower optical cable will be drawn enter above ground portion and arrange drainage guard member and be enclosed within and draw on lower optical cable, be connected with cable conduit by draw ground after drainage guard member is bending in infiltration structure after;
3) osculum is offered in drainage guard member bending least significant end in infiltration structure;
Further, to drawing shutoff between lower optical cable and drainage guard member.
Further, drainage guard member comprises the first protection tube and is tightly set in and draws outside lower optical cable, and the second protection tube that size is greater than the first protection tube is set in outside the first protection tube, forms pipelined channel between the first protection tube and the second protection tube.
Further, adopt the shutoff of reducing thermoplastic tube, and filling and blocking material or gas-development agent.
Compared with prior art, beneficial effect is in the present invention:
The protective device that the present invention draws lower optical cable enters cable conduit owing to drawing lower optical cable by piercing into the second protection tube; it is drawn the reducing pyrocondensation cap designed by zip mode on lower optical cable top and carries out shutoff; simultaneously at reducing pyrocondensation cap and draw filling-foam agent between lower optical cable, realize the encapsulation process of optical cable upper end.Reducing heat shrink technique and gas-development agent technology is adopted to prevent rainwater to flow into skirt from upper end, and enter to be located in the direct infiltration adopting the mode of building communication well to ensure lower end rainwater in skirt, prevent and pour in down a chimney phenomenon generation, finally drawing from optical cable shutoff and optical cable the protection that inferior multi-angle accomplished drawing lower optical cable, achieving the thorough solution of optical cable O&M persistent ailment.
The present invention draws the means of defence of lower optical cable, the modes such as shutoff are adopted to stop rainwater to enter skirt owing to drawing lower part at optical cable, employing passes into cable duct mode and introduces in website by optical cable, reducing heat shrink technique and gas-development agent technology is adopted to stop rainwater to flow into skirt from upper end, and enter to be located in skirt and adopt the mode of building communication well to ensure that the ponding in skirt permeates the ground from the infiltration floor drain of communication well, prevent pouring in down a chimney phenomenon and occur.The inventive method defines optical cable safety protecting method under complete, ripe drawing by demonstration and a large amount of operative practice repeatedly, successfully solves and perplexs optical cable safe operation persistent ailment for many years, substantially increase optical cable safe and stable operation condition.
Accompanying drawing explanation
Fig. 1 is the protective device structure figure that the present invention draws lower optical cable.
In figure: 1 draws lower optical cable, 2 reducing pyrocondensation caps, 3 gas-development agents, 4 second protection tubes, 5 cable conduits, 6 first protection tubes, 7 ground, 8 communication wells, 9 osculums.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment
See Fig. 1, a kind of protective device drawing lower optical cable, comprising: drainage guard member, seal connector and infiltration structure, and drainage guard member is tubular structure, is inserted in the introducing above ground portion drawing lower optical cable 1; Seal connector by drainage guard member with draw lower optical cable 1 and be tightly connected; Infiltration vibrational power flow is drawing the introducing of lower optical cable below ground; be arranged with optical cable bending one section of rearward end in infiltration structure under the drawing of drainage guard member to be incorporated on ground and to be connected with the cable conduit 5 being arranged on ground 7, the least significant end that drainage guard member bends in infiltration structure offers osculum 9.By seal connector by drainage guard member with draw after lower optical cable 1 is tightly connected, realize the encapsulation process of optical cable upper end, prevent rainwater from entering.
Drainage guard member comprises the first protection tube 6 and is set in and draws outside lower optical cable 1; with draw lower optical cable 1 and be close together; first protection tube 6 adopts pvc pipe; the second protection tube 4 that size is greater than the first protection tube 6 is set in outside the first protection tube 6; what the second protection tube 4 adopted is steel pipe; form pipelined channel between first protection tube 6 and the second protection tube 4, form loose space.
In order to prevent entering of rainwater, seal connector adopts reducing pyrocondensation cap 2, reducing pyrocondensation cap 2 and draw between lower optical cable 1 and fill plugging material.Plugging material can for playing the material of plugging action, is preferably gas-development agent 3, the operation of constructability and can play good sealing effectiveness.
In order to the convenience of further I&M, zip mode reducing pyrocondensation cap selected by reducing pyrocondensation cap 2.Certain seal connector is except can selecting reducing pyrocondensation cap, and that also can select other can play the web member connecting sealing function.
In order to the rainwater in the second protection tube 4 can be penetrated into underground; have selected the second protection tube 4 to be carried the first protection tube 6 and draw lower optical cable is bent in infiltration structure together; here infiltration structure can for arranging a communication well 8, and any well shape structure being arranged on the infiltration effect of playing of below ground or tubular structure.Completely remaining water can be entered in communication well 8 by the osculum 9 be arranged in the second protection tube least significant end.
Present invention also offers a kind of means of defence drawing lower optical cable, comprise the steps:
1) lower optical cable introducing place's foundation below ground infiltration structure is being drawn;
2) lower optical cable will be drawn enter above ground portion and arrange drainage guard member and be enclosed within and draw on lower optical cable, be connected with cable conduit by draw ground after drainage guard member is bending in infiltration structure after;
3) osculum is offered in drainage guard member bending least significant end in infiltration structure;
In order to seal, to drawing shutoff between lower optical cable and drainage guard member, and adopt the shutoff of reducing thermoplastic tube, and filling and blocking material or gas-development agent.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. draw a protective device for lower optical cable, it is characterized in that, comprising:
Drainage guard member is tubular structure, is inserted in the introducing above ground portion drawing lower optical cable;
Seal connector, by drainage guard member with draw lower optical cable and be tightly connected;
Infiltration structure; be arranged on and draw the introducing of lower optical cable below ground; be arranged with optical cable bending one section of rearward end in infiltration structure under the drawing of drainage guard member to be incorporated on ground and to be connected with the cable conduit being arranged on ground, drainage guard member offers osculum in the least significant end bent in structure that seeps water.
2. according to the protective device drawing lower optical cable according to claim 1; it is characterized in that; described drainage guard member comprises the first protection tube and is tightly set in and draws outside lower optical cable; the second protection tube that size is greater than the first protection tube is set in outside the first protection tube, forms pipelined channel between the first protection tube and the second protection tube.
3. according to the protective device drawing lower optical cable according to claim 1, it is characterized in that, described seal connector is a reducing pyrocondensation cap, reducing pyrocondensation cap and draw between lower optical cable and fill plugging material.
4. according to the protective device drawing lower optical cable according to claim 3, it is characterized in that, described plugging material is gas-development agent.
5. according to the protective device drawing lower optical cable according to claim 3, it is characterized in that, described reducing pyrocondensation cap is zip mode reducing pyrocondensation cap.
6. according to the protective device drawing lower optical cable according to claim 1, it is characterized in that, described infiltration structure is communication well.
7. draw a means of defence for lower optical cable, it is characterized in that, comprise the steps:
1) lower optical cable introducing place's foundation below ground infiltration structure is being drawn;
2) lower optical cable will be drawn enter above ground portion and arrange drainage guard member and be enclosed within and draw on lower optical cable, be connected with cable conduit by draw ground after drainage guard member is bending in infiltration structure after;
3) osculum is offered in drainage guard member bending least significant end in infiltration structure.
8. according to the means of defence drawing lower optical cable according to claim 7, it is characterized in that, to drawing shutoff between lower optical cable and drainage guard member.
9. according to the means of defence drawing lower optical cable according to claim 7; it is characterized in that; drainage guard member comprises the first protection tube and is tightly set in and draws outside lower optical cable; the second protection tube that size is greater than the first protection tube is set in outside the first protection tube, forms pipelined channel between the first protection tube and the second protection tube.
10. according to the means of defence drawing lower optical cable according to claim 8, it is characterized in that, adopt the shutoff of reducing thermoplastic tube, and filling and blocking material or gas-development agent.
CN201510772569.4A 2015-11-12 2015-11-12 A down-leading optical cable protection device and protection method Pending CN105319660A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510772569.4A CN105319660A (en) 2015-11-12 2015-11-12 A down-leading optical cable protection device and protection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510772569.4A CN105319660A (en) 2015-11-12 2015-11-12 A down-leading optical cable protection device and protection method

Publications (1)

Publication Number Publication Date
CN105319660A true CN105319660A (en) 2016-02-10

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108107527A (en) * 2018-02-01 2018-06-01 国网黑龙江省电力有限公司大兴安岭供电公司 Extremely frigid zones downlead cable infiltration anti-freezing device and construction method
CN108802927A (en) * 2018-05-29 2018-11-13 国家电网公司 Optical cable skirt system
CN111641180A (en) * 2020-06-02 2020-09-08 广东电网有限责任公司东莞供电局 Drainage type power tube

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060005983A1 (en) * 2004-06-10 2006-01-12 Rizzuto Salvatore A Jr Slack cable arrangement for underground electric service conduit connected to service boxes on the sides of buildings
CN202102154U (en) * 2011-06-16 2012-01-04 辽宁省电力有限公司丹东供电公司 Optical cable casing
CN103422565A (en) * 2013-08-26 2013-12-04 国家电网公司 Construction method for waterlogging removing of outdoor cable chute
CN205139441U (en) * 2015-11-12 2016-04-06 国网辽宁省电力有限公司辽阳供电公司 Protection device for draw optical cable down

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060005983A1 (en) * 2004-06-10 2006-01-12 Rizzuto Salvatore A Jr Slack cable arrangement for underground electric service conduit connected to service boxes on the sides of buildings
CN202102154U (en) * 2011-06-16 2012-01-04 辽宁省电力有限公司丹东供电公司 Optical cable casing
CN103422565A (en) * 2013-08-26 2013-12-04 国家电网公司 Construction method for waterlogging removing of outdoor cable chute
CN205139441U (en) * 2015-11-12 2016-04-06 国网辽宁省电力有限公司辽阳供电公司 Protection device for draw optical cable down

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108107527A (en) * 2018-02-01 2018-06-01 国网黑龙江省电力有限公司大兴安岭供电公司 Extremely frigid zones downlead cable infiltration anti-freezing device and construction method
CN108802927A (en) * 2018-05-29 2018-11-13 国家电网公司 Optical cable skirt system
CN111641180A (en) * 2020-06-02 2020-09-08 广东电网有限责任公司东莞供电局 Drainage type power tube
CN111641180B (en) * 2020-06-02 2021-11-09 广东电网有限责任公司东莞供电局 Drainage type power tube

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Application publication date: 20160210

RJ01 Rejection of invention patent application after publication