CN206930737U - A kind of communication cable fault locator - Google Patents
A kind of communication cable fault locator Download PDFInfo
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- CN206930737U CN206930737U CN201720799000.1U CN201720799000U CN206930737U CN 206930737 U CN206930737 U CN 206930737U CN 201720799000 U CN201720799000 U CN 201720799000U CN 206930737 U CN206930737 U CN 206930737U
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- optical cable
- steel wire
- parallel steel
- constant
- current
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Abstract
The utility model discloses a kind of communication cable fault locator, including constant-current source, current detecting unit, one end of constant-current source is connected with one end of the first optical cable parallel steel wire stiffener to be measured, the other end ground connection of constant-current source；The other end of first optical cable parallel steel wire stiffener is connected in series with current detecting unit, one end of current detecting unit and the second optical cable parallel steel wire stiffener is connected in series, the other end ground connection of second optical cable parallel steel wire stiffener, forms cable under test current loop.It is low with investing, easy to operate, the advantages of reliability is high, manpower and materials and time cost in Cable's Fault is handled can be greatly reduced.
Description
Technical field
Optical cable field of locating technology is the utility model is related to, especially a kind of communication cable fault locator.
Background technology
At this stage, all kinds of important control system operations such as oil-refining chemical Enterprise Hub control room each device DCS, SIS, ITCC
Stand and master controller progress process data that the equipment such as long-range frame is both needed to live rack room using optical-fibre communications by the way of is adopted
Collection communication, the total length of full factory's control optical cable is up to dozens of kilometres, and the characteristic that need to be route according to approach carries out buried, groove
A variety of paving modes such as frame, poling, therefore the reliability of control system communication cable is more and more important, maintenance is also with device
Increase it is more and more, during the use of optical cable, because of the barbarous construction of laying unit, optical cable construction monitoring around route
It is ineffective to damage or Cable's Fault caused by the problems such as optical cable sole mass happens occasionally.Common processing method is to use
OTDR equipment detects to find trouble point according to optical cable laying drawing after breakpoint distance and position, in trouble point to nearlyer one end rack
Between one section of new optical cable of laying play continued access bag with former optical cable and handle.As judging the rice mark of optical cable location mark due to being to be printed upon light
On cable crust, the None- identified that is worn is easy in process of deployment, and a plurality of optical cable is possible in the route of long range
Crossedpath is produced, is caused when handling optical cable with broken point failure, reliability can not be protected, and how fast and accurately position event
Barrier optical cable turns into a problem.
Utility model content
The purpose of this utility model is to provide a kind of communication cable fault locator, is powered and detects by optical cable reinforcing rib
Electric current, so as to be accurately positioned the failure optical cable in same route, there is the advantages of easy to operate, the degree of accuracy is high.
To achieve the above object, the utility model uses following technical proposals：
A kind of communication cable fault locator, including constant-current source, current detecting unit, one end of constant-current source are treated with first
One end connection of light-metering cable parallel steel wire stiffener, the other end ground connection of constant-current source；First optical cable parallel steel wire stiffener
The other end be connected in series with current detecting unit, one end of current detecting unit and the second optical cable parallel steel wire stiffener string
Connection connection, the other end ground connection of the second optical cable parallel steel wire stiffener, forms cable under test current loop.
Further, the positive output end of constant-current source steel parallel with the first optical cable in optical cable connecting box after connecting wire
One end connection of silk stiffener, the negative output terminal of constant-current source are connected with rack safety ground.
Further, the second optical cable parallel steel wire stiffener in optical cable connecting box passes through safety in connecting wire and cabinet
Grounding connection.
Further, the current detecting unit is ammeter, and ammeter needs carry out zero after an optical cable detection is completed
Point is carried out with the other optical cable current detecting of route again after revising.
The beneficial effects of the utility model are,
The utility model is treating light-metering using the characteristics of two parallel steel wire stiffeners run through whole piece optical cable in optical cable
24V power supplys are passed through in the loop that the steel wire stiffener of cable is formed with safety ground in cabinet, form the electric current through whole piece optical cable
Signal, current detecting is carried out to doubtful optical cable in optical cable approach route, can measure the optical cable of loop current can confirm as
Failure optical cable, detection process in can real-time transform power meter magnitude of voltage come check detection optical cable on electric current it is whether corresponding
Change, so as to realize to failure optical cable judgement positioning.It is low with investing, easy to operate, the advantages of reliability is high, it can subtract significantly
Few manpower and materials and time cost in Cable's Fault is handled.
Brief description of the drawings
Fig. 1 is cable cross-section schematic diagram；
Fig. 2 is the utility model connection relationship diagram；
Wherein, 1, polyethylene outer sheath, 2, dual coating composite steel-plastic belt, 3, colored optical fiber, 4, parallel steel wire strengthen structure
Part, 5, thixotropy fibre cream, 6, PBT Loose tubes.
Embodiment
As shown in figure 1, there are two parallel steel wire stiffeners to run through whole piece optical cable in optical cable.In optical cable welding, this
Steel wire stiffener need to be fixed in the fixed screw of Fiber splice tray to ensure the welding optical cable during mobile splicing box
Stability.
As shown in Fig. 2 a kind of communication cable fault locator, including 24V constant-current sources, current detecting unit, 24V constant currents
The one end of the positive output end in source with the first optical cable parallel steel wire stiffener in optical cable connecting box after connecting wire is connected,
The negative output terminal of 24V constant-current sources is connected with rack safety ground.The other end and electric current of first optical cable parallel steel wire stiffener
Table is connected in series, and one end of ammeter and the second optical cable parallel steel wire stiffener is connected in series, and second in optical cable connecting box
Optical cable parallel steel wire stiffener is connected by connecting wire with safety ground in cabinet, forms cable under test current loop.Electric current
Table needs to carry out to carry out again with the other optical cable current detecting of route after zero point is revised after an optical cable detection is completed.
Were there is communication failure with SIS02 optical cables in 2 months 2016 in two catalysis ITCC control systems, using OTDR optical cables
Failure breakpoint at the rice of rack room side more than 230, common processing method are in breakpoint to live machine at the scene for tester detection
One section of new optical cable is laid between cabinet and plays the processing of continued access bag with former optical cable, along optical cable path searching after discovery because approach route in have it is a plurality of
Communication cable, and on the way optical cable be indicated in process of deployment have worn away can not it is clear that can not ensure handle optical cable accuracy, such as
Fruit lays a nearly 1.5KM of optical cable total length to Central Control Room again, will expend substantial amounts of manpower and materials.
Groove box internal fault optical cable is detected at two catalytic unit north sides, two power set west side Optical Cable platforms
Search.Reinforcement will be fixed in failure optical cable connecting box in Central Control Room rack room side using connecting wire and safety ground in cabinet to connect
Connect.It is 205 to fix resistance between reinforcement optical cable and safety ground in Site for Unit rack room side detection failure optical cable welding box
Ohm.By voltage modulated it is 24V after energization, using current tester to optical cable detects in groove box at route, wherein one
Electric current is 0.12A in detection line, and voltage is adjusted in test process, corresponding current value also respective change, in groove box its
Remaining is being 0.01A with electric current on optical cable, judges that it is failure optical cable to detect electric current as 0.12A optical cable, distance at test point
Unit allocation room distance here blocks optical cable at 300 meters or so, newly lays one section of optical cable to Site for Unit rack room, paving
If packing is carried out after the completion of to continue processing, is detected after the completion of connection, recovers this fiber optic communications after qualified.
It is not new to this practicality although above-mentioned specific embodiment of the present utility model is described with reference to accompanying drawing
The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Field technique personnel need not pay the various modifications that creative work can make or deformation still in protection model of the present utility model
Within enclosing.
Claims (4)
- A kind of 1. communication cable fault locator, it is characterised in that including constant-current source, current detecting unit, the one of constant-current source End is connected with one end of the first optical cable parallel steel wire stiffener to be measured, the other end ground connection of constant-current source；The parallel steel of first optical cable The other end of silk stiffener is connected in series with current detecting unit, and current detecting unit and the second optical cable parallel steel wire strengthen structure One end of part is connected in series, and the other end ground connection of the second optical cable parallel steel wire stiffener, forms cable under test current loop.
- A kind of 2. communication cable fault locator as claimed in claim 1, it is characterised in that the positive output end warp of constant-current source It is connected after crossing connecting wire with one end of the first optical cable parallel steel wire stiffener in optical cable connecting box, the negative output of constant-current source End is connected with rack safety ground.
- 3. a kind of communication cable fault locator as claimed in claim 1, it is characterised in that second in optical cable connecting box Optical cable parallel steel wire stiffener is connected by connecting wire with safety ground in cabinet.
- 4. a kind of communication cable fault locator as claimed in claim 1, it is characterised in that the current detecting unit is Ammeter, ammeter need to carry out to carry out again after zero point is revised with the other optical cable electric current inspection of route after an optical cable detection is completed Survey.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720799000.1U CN206930737U (en) | 2017-07-04 | 2017-07-04 | A kind of communication cable fault locator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720799000.1U CN206930737U (en) | 2017-07-04 | 2017-07-04 | A kind of communication cable fault locator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206930737U true CN206930737U (en) | 2018-01-26 |
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ID=61354429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720799000.1U Active CN206930737U (en) | 2017-07-04 | 2017-07-04 | A kind of communication cable fault locator |
Country Status (1)
| Country | Link |
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| CN (1) | CN206930737U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115412163A (en) * | 2022-09-21 | 2022-11-29 | 佛山市冰蓝科技有限公司 | System and method for detecting and positioning breakpoints of field optical cables |
-
2017
- 2017-07-04 CN CN201720799000.1U patent/CN206930737U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115412163A (en) * | 2022-09-21 | 2022-11-29 | 佛山市冰蓝科技有限公司 | System and method for detecting and positioning breakpoints of field optical cables |
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