CN103995335A - Broken strand repairing method of OPGW cable - Google Patents
Broken strand repairing method of OPGW cable Download PDFInfo
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- CN103995335A CN103995335A CN201410192613.XA CN201410192613A CN103995335A CN 103995335 A CN103995335 A CN 103995335A CN 201410192613 A CN201410192613 A CN 201410192613A CN 103995335 A CN103995335 A CN 103995335A
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- optical cable
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- repair rods
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Abstract
The invention discloses a broken strand repairing method of an OPGW cable. The method is characterized by comprising the steps that the damage condition at the broken strand position of the OPGW cable is checked; according to the damage state, the external surface of the OPGW cable at the two sides of the broken strand position is polished via sand paper to remove an oxidation layer and is uniformly pasted with conductive paste; pre-stranded repair strips are selected according to material of the external layer of the OPGW cable; one group of pre-stranded repair strips is mounted at first, marks in the middle of the pre-stranded repair strips are levered with the broken strand position, the pre-stranded repair strips are rotated and wound from the middle to two sides, and the rotation and winding direction of the strips is the same with the rotation direction of the external layer of the OPGW cable; and all the residual pre-stranded repair strips are mounted. 2 to 5 groups of pre-stranded repair strips are included according to the external diameter of the OPGW cable, and the rotation directions of the pre-stranded repair strips are the same. Due to employment of the method, the mechanical, electrical and light transmission performances of the repaired OPGW can satisfy engineering requirements, and the tensile strength of the repaired OPGW is greater than 95%RTS.
Description
Technical field
The present invention relates to the disconnected strand restorative procedure of a kind of optical cable, specifically, relate to the disconnected strand restorative procedure of a kind of OPGW optical cable.
Background technology
Optical Fiber composite overhead Ground Wire (is called again OPGW optical cable, hereinafter to be referred as OPGW), belong to the extraordinary aerial optical cable of power communication, with transmission pressure wiring on the same tower, in the top of overhead transmission line, both having had the function of communications optical cable, and used again simultaneously as overhead ground wire, is to realize the intelligentized key of electrical network.The applied environment of the OPGW of China than other national situation complexity many, as there is area in high thunderstorm day, heavy ice-covering area etc., simultaneously, in recent years, the electric pressure of China's transmission line of electricity is more and more higher, and transmission line capability increases gradually, sets up shaft tower more and more higher, span between shaft tower (as large cross line) is more and more longer, requires also more and more higher to the safe O&M of OPGW.And along with the generally application of OPGW optical cable in communication of power system, operational defect also progressively comes out, most importantly disconnected strand of the outer strand of OPGW.OPGW ground wire possesses the aerial earth wire dual-use function of communicating by letter with power optical fiber, be doomed its possibility of being struck by lightning, mechanical damage in transport installation process, the one of the main reasons that the disconnected thigh of thunderbolt is OPGW damage, the disconnected thigh of skin of OPGW not only forms and threatens communication security, and along with the increase of its broken lot length, the reduction of physical strength, has also formed serious threat to the safety of transmission line of electricity.Therefore, how to repair the OPGW optical cable after disconnected strand, fix a breakdown with the investment economizing most, the shortest time, the most reliable scheme, become everybody the common problem of paying close attention to.
Summary of the invention
The object of this invention is to provide that a kind of method is simple, rehabilitation cost is low, repair the disconnected strand restorative procedure of short, safe and reliable OPGW optical cable consuming time.
The technical solution used in the present invention is:
The disconnected strand restorative procedure of a kind of OPGW optical cable, its concrete steps are:
A, the damaged situation of checking disconnected burst of place of optical cable, in following situation, can continue patch work, a, disconnected burst of rear its residue calculating strength of optical cable are not less than 50%RTS, b, fiber unit be without damage, c, the disconnected number of share of stock of the outer optical cable for aluminium alloy wire be no more than total number of share of stock 50%, the disconnected number of share of stock of the outer optical cable for aluminum-clad steel wire is no more than 60% of total number of share of stock;
B, according to damaged situation, if outermost layer monofilament has ruptured and the whereabouts that relaxes, before repairing, lax strand to be screwed to original position as far as possible, and temporarily fix with adhesive tape;
An OPGW optical cable outside surface for C, both sides with sand paper to disconnected burst of place of optical cable polish and is removed oxide layer, evenly smears conductive paste simultaneously in the above, and the length of polishing and the length of smearing power down cream all should be not less than the length of installation pre-twisted wire repairing strip;
D, according to OPGW optical cable cladding material select preformed repair rods, the material of preformed repair rods should be identical with OPGW cladding material;
E, installation preformed repair rods, first install one group and repair bar, and the central marker of preformed repair rods is alignd with disconnected burst of place, rotated and be wound around to both sides by centre, and direction that its rotation is wound around should be identical with the outer field rotation direction of OPGW;
F, repetition E step, until remaining all preformed repair rods installations; Preformed repair rods is 2-5 group, specifically determines according to the external diameter of OPGW optical cable, and the rotation direction of every group of preformed repair rods is all identical.
Further, the internal layer frosted of described preformed repair rods adopts conduction sand.
Further, while processing in C step, meet adhesive tape place without processing.
Further, in E, F step, preformed repair rods should with OPGW close contact.Advantage of the present invention is:
(1) adopt the inventive method, mechanical property, electric property and the optical transmission performance after OPGW repairs be energy engineering demands all, tensile strength ﹥ 95%RTS;
(2) preformed repair rods material used can be identical with the outer twisted wire material of OPGW, can ensure good compatibility and corrosion resistance;
(3) the internal layer frosted of preformed repair rods adopts conduction sand, has better electric conductivity, thereby after repairing, the through-current capability of OPGW is unaffected;
(4) preformed repair rods stress distribution is even, and unstressed centrostigma can be protected OPGW internal optical fiber and steel pipe well;
(5) preformed repair rods table is and smooth, and the profile that end is round and smooth, has improved corona voltage, has reduced energy loss;
(6) installation of preformed repair rods rapid, simple, convenient, do not need to use other instrument, free-handly just can operate, especially in the middle of nowhere, do not need to carry and use clumsy heavy tool of compression;
(7) when preformed repair rods is repaired, operation is installed and is not subject to the whether charged impact of wire, and the installation that can not have a power failure can be avoided the power failure causing for repairing operation OPGW.
Embodiment
The disconnected strand restorative procedure of a kind of OPGW optical cable, its concrete steps are:
A, the damaged situation of checking disconnected burst of place of optical cable, in following situation, can continue patch work, a, disconnected burst of rear its residue calculating strength of optical cable are not less than 50%RTS, b, fiber unit be without damage, c, the disconnected number of share of stock of the outer optical cable for aluminium alloy wire be no more than total number of share of stock 50%, the disconnected number of share of stock of the outer optical cable for aluminum-clad steel wire is no more than 60% of total number of share of stock;
B, according to damaged situation, if outermost layer monofilament has ruptured and the whereabouts that relaxes, before repairing, lax strand to be screwed to original position as far as possible, and temporarily fix with adhesive tape;
An OPGW optical cable outside surface for C, both sides with sand paper to disconnected burst of place of optical cable polish and is removed oxide layer (meeting adhesive tape place without processing), evenly smear conductive paste in the above, the length of polishing and the length of smearing power down cream all should be not less than the length that pre-twisted wire repairing strip is installed simultaneously;
D, select preformed repair rods according to OPGW optical cable cladding material, the material of preformed repair rods should be identical with OPGW cladding material, and the simultaneously internal layer frosted of preformed repair rods adopts conduction sand;
E, installation preformed repair rods, first install one group and repair bar, the central marker of preformed repair rods is alignd with disconnected burst of place, be wound around to both sides rotation by centre, its rotation be wound around direction should be identical with the outer field rotation direction of OPGW, preformed repair rods should with OPGW close contact;
F, repeat E step, until remaining all preformed repair rods installations, preformed repair rods should with OPGW close contact; Preformed repair rods is 2-5 group, specifically determines according to the external diameter of OPGW optical cable, and the rotation direction of every group of preformed repair rods is all identical.
Claims (4)
1. the disconnected strand restorative procedure of OPGW optical cable, is characterized in that: concrete steps are:
A, the damaged situation of checking disconnected burst of place of optical cable, in following situation, can continue patch work, a, disconnected burst of rear its residue calculating strength of optical cable are not less than 50%RTS, b, fiber unit be without damage, c, the disconnected number of share of stock of the outer optical cable for aluminium alloy wire be no more than total number of share of stock 50%, the disconnected number of share of stock of the outer optical cable for aluminum-clad steel wire is no more than 60% of total number of share of stock;
B, according to damaged situation, if outermost layer monofilament has ruptured and the whereabouts that relaxes, before repairing, lax strand to be screwed to original position as far as possible, and temporarily fix with adhesive tape;
An OPGW optical cable outside surface for C, both sides with sand paper to disconnected burst of place of optical cable polish and is removed oxide layer, evenly smears conductive paste simultaneously in the above, and the length of polishing and the length of smearing power down cream all should be not less than the length of installation pre-twisted wire repairing strip;
D, according to OPGW optical cable cladding material select preformed repair rods, the material of preformed repair rods should be identical with OPGW cladding material;
E, installation preformed repair rods, first install one group of preformed repair rods, and the central marker of preformed repair rods is alignd with disconnected burst of place, and by centre, to both sides rotation winding, direction that its rotation is wound around should be identical with the outer field rotation direction of OPGW;
F, repetition E step, until remaining all preformed repair rods installations; Preformed repair rods is 2-5 group, specifically determines according to the external diameter of OPGW optical cable, and the rotation direction of every group of preformed repair rods is all identical.
2. the disconnected strand restorative procedure of a kind of OPGW optical cable according to claim 1, is characterized in that: the internal layer frosted of described preformed repair rods adopts conduction sand.
3. the disconnected strand restorative procedure of a kind of OPGW optical cable according to claim 1, is characterized in that: while processing in C step, meet adhesive tape place without processing.
4. disconnected strand of restorative procedure of a kind of OPGW optical cable according to claim 1, is characterized in that: in E, F step, preformed repair rods should with OPGW close contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410192613.XA CN103995335A (en) | 2014-05-09 | 2014-05-09 | Broken strand repairing method of OPGW cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410192613.XA CN103995335A (en) | 2014-05-09 | 2014-05-09 | Broken strand repairing method of OPGW cable |
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| Publication Number | Publication Date |
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| CN103995335A true CN103995335A (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410192613.XA Pending CN103995335A (en) | 2014-05-09 | 2014-05-09 | Broken strand repairing method of OPGW cable |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384405A (en) * | 2014-09-17 | 2015-03-04 | 明光市锐创电气有限公司 | Forming process of electric wire fixing preformed armor rods |
| CN104466792A (en) * | 2014-11-14 | 2015-03-25 | 国家电网公司 | Pre-twisted wire repair strip and production process thereof |
| CN105720514A (en) * | 2014-12-05 | 2016-06-29 | 国家电网公司 | Permanent restoration method for broken strand of optical fiber composite overhead ground wire |
| CN105932601A (en) * | 2016-07-05 | 2016-09-07 | 国网山东省电力公司德州供电公司 | Method for repairing break strand of overhead ground wire |
| CN108075396A (en) * | 2016-11-14 | 2018-05-25 | 沈彦南 | A kind of charged auto-mending robot of grounded-line |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201523180U (en) * | 2009-10-24 | 2010-07-07 | 华北电网有限公司大同超高压供电公司 | 500kV power transmission line overhead ground wire flying car |
| CN202487790U (en) * | 2011-12-08 | 2012-10-10 | 上海神勇线路器材有限公司 | Pre-twisted full tension force splicing strip |
| CN202533626U (en) * | 2012-04-14 | 2012-11-14 | 山东鲁强电缆(集团)股份有限公司 | Pre-twisted conducting clip |
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2014
- 2014-05-09 CN CN201410192613.XA patent/CN103995335A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201523180U (en) * | 2009-10-24 | 2010-07-07 | 华北电网有限公司大同超高压供电公司 | 500kV power transmission line overhead ground wire flying car |
| CN202487790U (en) * | 2011-12-08 | 2012-10-10 | 上海神勇线路器材有限公司 | Pre-twisted full tension force splicing strip |
| CN202533626U (en) * | 2012-04-14 | 2012-11-14 | 山东鲁强电缆(集团)股份有限公司 | Pre-twisted conducting clip |
Non-Patent Citations (2)
| Title |
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| 陈飞鹏: "OPGW断股原因分析及修复探讨", 《广东输电与变电技术》 * |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384405A (en) * | 2014-09-17 | 2015-03-04 | 明光市锐创电气有限公司 | Forming process of electric wire fixing preformed armor rods |
| CN104466792A (en) * | 2014-11-14 | 2015-03-25 | 国家电网公司 | Pre-twisted wire repair strip and production process thereof |
| CN105720514A (en) * | 2014-12-05 | 2016-06-29 | 国家电网公司 | Permanent restoration method for broken strand of optical fiber composite overhead ground wire |
| CN105720514B (en) * | 2014-12-05 | 2018-09-14 | 国家电网公司 | A kind of stranded permanent restorative procedure of optical fiber composite overhead ground wire |
| CN105932601A (en) * | 2016-07-05 | 2016-09-07 | 国网山东省电力公司德州供电公司 | Method for repairing break strand of overhead ground wire |
| CN108075396A (en) * | 2016-11-14 | 2018-05-25 | 沈彦南 | A kind of charged auto-mending robot of grounded-line |
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Application publication date: 20140820 |
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