CN110045461A - The method of distribution large capacity composite cable welding - Google Patents
The method of distribution large capacity composite cable welding Download PDFInfo
- Publication number
- CN110045461A CN110045461A CN201910203311.0A CN201910203311A CN110045461A CN 110045461 A CN110045461 A CN 110045461A CN 201910203311 A CN201910203311 A CN 201910203311A CN 110045461 A CN110045461 A CN 110045461A
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- CN
- China
- Prior art keywords
- optical fiber
- cable
- test
- fibre
- welding
- 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.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/245—Removing protective coverings of light guides before coupling
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/25—Preparing the ends of light guides for coupling, e.g. cutting
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2553—Splicing machines, e.g. optical fibre fusion splicer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2558—Reinforcement of splice joint
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4457—Bobbins; Reels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
Abstract
The invention discloses a kind of methods of distribution large capacity composite cable welding, belong to optical fiber construction method field.It includes following operating procedure: (1) single-deck test job, and test should report irradiation cable factory testing and carry out；(2) preparation before fibre junction is prepared and examines to Work tool instrument, exposes inner layer metal casing and optical fiber bundle tubes, optical cable is penetrated terminal box；(3) cable connection accurately measures the loss value of connector with heat sealing machine by optical cable welding, finally assembles terminal box and covers；(4) it is fixed on terminal box and remaining cable tower；(5) global test measures the average loss of fibre circuit using light power meter using the two-way average value of OTDR measurement optical cable.The problem of inventive process avoids because of optical fiber quality problem influence communication quality, and greatly reduce the measurement error of fibre loss.
Description
Technical field
The invention belongs to a kind of optical fiber construction methods, specifically, more particularly to a kind of distribution large capacity composite cable it is molten
The method connect.
Background technique
OPGW composite cable is light-weight, diameter is small, can large capacity long range repeaterless transmission, it is not dry by noise and electromagnetic field
It disturbs.So OPGW composite cable is in power system communication network with more and more extensive.Influence the main of optical fiber installation quality
Because being known as: the production and processing quality of optical fiber, the stretching in work progress, distortion, bending, extruding, dampness, connecting quality, wherein
Connecting quality is that a most important ring, fibre junction mode have movable (union) and permanent type (dead connector).It is movable to adopt
With the optical fiber connector of socket connector type, practical is termination problem.Permanent type is divided into mechanical splice method and burning-on method again.Wherein welding
Method connection is reliable, loss is small, be using section is a kind of universal method.The construction technology of burning-on method can not in the presence of connection at present
It leans on, big defect is lost, cause fiber optic communications quality bad.
Summary of the invention
It is an object of the present invention to provide a kind of methods of distribution large capacity composite cable welding, to overcome welding in the prior art
The construction technology of method haves the defects that connection is unreliable, loss is big.
Realization that the present invention adopts the following technical solutions:
The method of the distribution large capacity composite cable welding, including following operating procedure:
(1) single-deck test job is completed after optical cable is transported to scene: opening reel when test, optical cable one end is drawn,
With handheld tool by optical cable baring, leak out inner layer optical fiber, by optical fiber by root cutting section, by naked fibre adapter, tail optical fiber with
OTDR, which is connected, to be tested, and test should report irradiation cable factory testing and carry out, and optical fiber relevant parameter should be consistent；
(2) preparation before fibre junction:
A. Work tool instrument is prepared and is examined；
B. it under should first drawing 2 remaining cables along iron tower main material aligned inside before welding, and is fixed with Special wire-clip, according to connecing
Wire box requires 2 OPGW penetrating terminal box, by screw tightening, waits welding, stops connecting according to the requirement of terminal box and use up
Fibre, then by optical fiber setting-out on holding fine disk, cut excess fiber；
(3) cable connection:
A. 2 corresponding optical fiber are removed coating from pincers with dedicated remain by color sequences, and wherein 1 to put on heat defeated
Casing cleans naked fibre with alcohol, then makes end face with front tool, is respectively put into the V-shaped groove in optical fiber splicer, heat sealing machine
Simultaneously welding will be judged to its end face automatically；
It b. is the loss value for accurately measuring connector, it is necessary to carry out two-way test to point is connected from 2 directions with OTDR, count
The average loss value for calculating bidirectional measurement is done over again in time if splicing loss is bigger than normal, and connector is placed in heat again until meeting the requirements
Among Heat-Shrinkable Tubings, pyrocondensation is carried out to protect connector；
C. after optical fiber is by root welding, remaining fibre is accommodated holding in fine disk, pays attention to being unable to kinking light in disk fibre
Fibre, optical fiber also need to test optical fiber by root after accommodating, and connect whether loss value meets the requirements after Reading the Tape is fine, it is ensured that after errorless
Terminal box is assembled again and is covered；
(4) it fixes on terminal box and remaining cable tower: after connection box set installs, is fixed on the inside of iron tower main material as required,
And be fitly coiled in remaining cable on the inside of steel tower up and down, it is fixed with Special wire-clip；
(5) global test: full section tests the hop of entire bid section after constructing, and OTDR has adapter slots,
Single head tail optical fiber is connected when measurement, is connected between tail optical fiber and optical fiber by coupler, carries out test optical fiber, test method is:
A. optical line is measured from both direction using OTDR, tests the loss size of each connector, it is double to calculate it
To average value；
B. whole launched power P1 is measured using light power meter, then measures whole fiber power P 2, obtains optical fiber
Full range transmission loss △ P=P1-P2, the total length L of optical fiber is measured using OTDR, can obtain the average loss △ P/L of fibre circuit,
It is measured from both direction, then calculates average value, stored as completion information.
Further, in step (3) for the ease of detecting and prevent misconnection, it is necessary to be melted by certain chromatography sequence
Connect, in order by the fiber alignment of same color when, 2 OTDR can be measured in real time, if getting lines crossed misconnection or connector not
Qualified butt joint in time is done over again.
Further, it cannot be less than 8cm in the fine disk inner fiber minimum bending radius of appearance in step (3).
Compared with prior art, the beneficial effects of the present invention are:
(1) the method for the present invention tests reel before fused fiber splice, and detection fiber is excessive with the presence or absence of being lost
Problem avoids influencing communication quality because of optical fiber quality problem；
(2) the method for the present invention uses OTDR and light power meter to each relaying of entire bid section after OPGW full section is constructed
Duan Jinhang test, can greatly reduce the measurement error of fibre loss.
Detailed description of the invention
Fig. 1 is the schematic diagram of single-deck test of the present invention；
Fig. 2 is the two-way schematic diagram to the method for survey of the present invention
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
The method of distribution large capacity composite cable welding of the present invention, including following operating procedure:
(1) single-deck test job is completed after optical cable is transported to scene:
As shown in Figure 1, opening reel when test, optical cable one end is drawn, with handheld tool by optical cable baring, in leakage
Layer optical fiber is connected with OTDR by naked fibre adapter, tail optical fiber and is tested by optical fiber by root cutting section, and test reply is shone
The problems such as report of optical cable factory testing carries out, and optical fiber relevant parameter should be consistent, excessive if there is fibre loss should lead in time
Supplier is known, so as into respective handling；
(2) preparation before fibre junction:
A. Work tool instrument is prepared and is examined, guarantee its service performance, in order to avoid influence construction；
B. composite cable is by unwrapping wire section Processing to length, and usually after stringing, wiring tower has several remaining cables, is melted
It under should first drawing 2 remaining cables along iron tower main material aligned inside before connecing, and is fixed with Special wire-clip, is careful not to make optical cable and iron
Tower angle steel directly rubs, and mutual spacing should expire a group design requirement, and the bending radius of OPGW optical cable is kept when installation to be not less than optical cable
20 times of outer diameter；To prevent second trial, OPGW draw lower connecting length should still there are several meter Yu Liang after landing, then cut off into
Row subsequent duty requires successively to remove and (need to usually remain 2m or so) the aluminum steel twisted wire of the end OPGW, pay attention to not according to terminal box
It damages endothecium structure, exposes inner layer metal casing, the requirement further according to terminal box stops several centimeters of metal sleeve with dedicated
Cutter cuts off redundance, exposes inner layer optical fiber beam tube, 2 OPGW are then penetrated terminal box, screw tightening waits fusion
It connects；2 OPGW beam tubes are successively peeled off with dedicated beam tube broach, exposes inner layer optical fiber, connecting is stopped according to the requirement of terminal box
With removing fibre, then by optical fiber setting-out on holding fine disk, excess fiber is cut, is convenient for carrying out disk to remaining fibre after welding in this way staying.
(3) cable connection:
A. cable end wheat flour is made, welding, coating is gone to 2 corresponding optical fiber with dedicated hoe scaler by color sequences
Fall, and wherein 1 put on the defeated casing of heat, clean naked fibre with alcohol, then make end face with front tool, be respectively put into optical fiber welding
In V-shaped groove in picking, heat sealing machine will judge automatically to its end face and welding；Optical fiber in beam tube is carried out by its color
Difference, for the ease of detecting and preventing misconnection, it is necessary to carry out welding by certain chromatography sequence, every optical fiber in this way has
The serial number of oneself, in order by the fiber alignment of volume color of the same race when, 2 optical time domain refiectometers (OTDR) can be examined in real time
It surveys, if getting lines crossed misconnection or connector is unqualified is also convenient for timely butt joint and does over again；
It b. is precise measurement as shown in Fig. 2, meeting automatic butt head loss value makes rough judgement after heat sealing machine welding
The loss value of connector out, it is necessary to carry out two-way test to point is connected from 2 directions with OTDR, calculate the average damage of bidirectional measurement
Consumption value does over again in time if splicing loss is bigger than normal, connector is placed among heat-shrinkable T bush again until meeting the requirements, carry out pyrocondensation with
Protect connector；
C. after optical fiber is by root welding, remaining fibre is accommodated holding in fine disk, pays attention to being unable to kinking light in disk fibre
Fibre, optical fiber minimum bending radius cannot be less than 8cm, and optical fiber is also needed to test optical fiber by root after accommodating, be connected after Reading the Tape is fine
Whether loss value meets the requirements, it is ensured that again assembles terminal box after errorless and covers；
(4) it fixes on terminal box and remaining cable tower: after connection box set installs, is fixed on the inside of iron tower main material as required,
And be fitly coiled in remaining cable on the inside of steel tower up and down, it is fixed with Special wire-clip；
(5) global test:
Full section tests the hop of entire bid section after constructing, and OTDR has an adapter slots, and when measurement connects list
It is fine end to end, it is connected between tail optical fiber and optical fiber by coupler, carries out test optical fiber, test method is:
A. optical line is measured from both direction using OTDR, tests the loss size of each connector, it is double to calculate it
To average value；
The shortcomings that b.OTDR is that there are measurement blind areas, usually at the end of an OPGW constructs, also needs to accurately measure light
The total losses of fine route need to introduce light power meter insertion and survey most route, and light power meter can be with accurately measure light function
The size of rate needs a stable light source when use, and due to optical fiber pigtail, connector etc. all has power in measurement process
Loss so being measured whole launched power P1 using light power meter first, then is measured whole fiber power P 2, obtains optical fiber
Full range transmission loss △ P=P1-P2；When measurement, most handy same portion's light power meter, the tail optical fiber of model of the same race, connector into
Row measurement, otherwise also needs to be modified measured deviation, the whole total losses error that insertion measures generally in 0.5dB or so,
Select tail optical fiber with high accuracy that can reduce its error, the total losses and the optical fiber total length L measured by OTDR for having route can
Obtain the average loss △ P/L of fibre circuit.It is measured from 2 directions, then calculates its average value, its error can be greatly reduced；
It needs to put test record, including measurement direction, total losses, the calculated average loss of institute in order after being completed with light power meter
Value, a part as completion information.
Claims (3)
1. a kind of method of distribution large capacity composite cable welding, it is characterised in that: including following operating procedure:
(1) single-deck test job is completed after optical cable is transported to scene: opening reel when test, optical cable one end is drawn, hand is used
Tool is held by optical cable baring, inner layer optical fiber is leaked out by optical fiber by root cutting section and passes through naked fibre adapter, tail optical fiber and OTDR phase
Connection is tested, and test should report irradiation cable factory testing and carry out, and optical fiber relevant parameter should be consistent；
(2) preparation before fibre junction:
A. Work tool instrument is prepared and is examined first；
B. it under should first drawing 2 remaining cables along iron tower main material aligned inside before welding, and is fixed with Special wire-clip, according to terminal box
It is required that 2 OPGW are penetrated terminal box, by screw tightening, welding is waited, connecting optical fiber is stopped according to the requirement of terminal box, then
By optical fiber setting-out on holding fine disk, excess fiber is cut；
(3) cable connection:
A. 2 corresponding optical fiber are removed coating from pincers with dedicated remain by color sequences, and wherein 1 put on the defeated set of heat
Pipe cleans naked fibre with alcohol, then makes end face with front tool, is respectively put into the V-shaped groove in optical fiber splicer, and heat sealing machine will
Automatically simultaneously welding is judged to its end face；
It b. is the loss value for accurately measuring connector, it is necessary to carry out two-way test to point is connected from 2 directions with OTDR, calculate
The average loss value of bidirectional measurement is done over again in time if splicing loss is bigger than normal, and connector is placed in thermal shrinkable sleeve again until meeting the requirements
Among pipe, pyrocondensation is carried out to protect connector；
C. after optical fiber is by root welding, remaining fibre is accommodated holding in fine disk, pays attention to being unable to kinking optical fiber, light in disk fibre
It also needs to test optical fiber by root after fibre receiving, connects whether loss value meets the requirements after Reading the Tape is fine, it is ensured that again will after errorless
Terminal box assembling capping；
(4) it fixes: after connection box set installs, is fixed on the inside of iron tower main material as required, and will on terminal box and remaining cable tower
Remaining cable is fitly coiled on the inside of steel tower up and down, is fixed with Special wire-clip；
(5) global test: full section tests the hop of entire bid section after constructing, and OTDR has adapter slots, measurement
When connect single head tail optical fiber, be connected between tail optical fiber and optical fiber by coupler, carry out test optical fiber, test method is:
A. optical line is measured from both direction using OTDR, tests the loss size of each connector, it is two-way calculates its
Average value；
B. whole launched power P1 is measured using light power meter, then measures whole fiber power P 2, obtains the whole process of optical fiber
Transmission loss △ P=P1-P2, the total length L of optical fiber is measured using OTDR, the average loss △ P/L of fibre circuit can be obtained, from two
A direction measures, then calculates average value, stores as completion information.
2. the method for distribution large capacity composite cable welding according to claim 1, it is characterised in that: step is in (3)
Convenient for detection and prevent misconnection, it is necessary to welding is carried out by certain chromatography sequence, in order by the fiber alignment of same color
When, 2 OTDR can be measured in real time, if getting lines crossed misconnection or the unqualified timely butt joint of connector is done over again.
3. the method for distribution large capacity composite cable welding according to claim 2, it is characterised in that: in step (3)
Holding fine disk inner fiber minimum bending radius cannot be less than 8cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910203311.0A CN110045461A (en) | 2019-03-18 | 2019-03-18 | The method of distribution large capacity composite cable welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910203311.0A CN110045461A (en) | 2019-03-18 | 2019-03-18 | The method of distribution large capacity composite cable welding |
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| Publication Number | Publication Date |
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| CN110045461A true CN110045461A (en) | 2019-07-23 |
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| CN201910203311.0A Pending CN110045461A (en) | 2019-03-18 | 2019-03-18 | The method of distribution large capacity composite cable welding |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115144966A (en) * | 2022-06-16 | 2022-10-04 | 上海电信工程有限公司 | Floating wire comparison method for reducing optical fiber connection loss " |
| CN115480346A (en) * | 2022-09-20 | 2022-12-16 | 中邮通建设咨询有限公司 | Intelligent identification method for optical fiber connection in communication engineering |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033893A (en) * | 2011-09-30 | 2013-04-10 | 上海共联通信信息发展有限公司 | Optical cable joint method based on cable holder |
| CN105911661A (en) * | 2016-06-08 | 2016-08-31 | 天津送变电工程公司 | Transformer-substation optical-cable construction technology |
-
2019
- 2019-03-18 CN CN201910203311.0A patent/CN110045461A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033893A (en) * | 2011-09-30 | 2013-04-10 | 上海共联通信信息发展有限公司 | Optical cable joint method based on cable holder |
| CN105911661A (en) * | 2016-06-08 | 2016-08-31 | 天津送变电工程公司 | Transformer-substation optical-cable construction technology |
Non-Patent Citations (2)
| Title |
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| 中铁电气化局集团有限公司: "《变电工程施工作业操作手册》", 31 December 2014 * |
| 李庆林: "《架空送电线路施工手册》", 30 September 2002 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115144966A (en) * | 2022-06-16 | 2022-10-04 | 上海电信工程有限公司 | Floating wire comparison method for reducing optical fiber connection loss " |
| CN115144966B (en) * | 2022-06-16 | 2023-09-12 | 上海电信工程有限公司 | Floating line comparison method for reducing optical fiber splicing loss " |
| CN115480346A (en) * | 2022-09-20 | 2022-12-16 | 中邮通建设咨询有限公司 | Intelligent identification method for optical fiber connection in communication engineering |
| CN115480346B (en) * | 2022-09-20 | 2023-09-19 | 中邮通建设咨询有限公司 | Intelligent identification method for optical fiber connection in communication engineering |
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Application publication date: 20190723 |