CN210380844U - Portable high-voltage cable channel test communication instrument - Google Patents
Portable high-voltage cable channel test communication instrument Download PDFInfo
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- CN210380844U CN210380844U CN201921904811.9U CN201921904811U CN210380844U CN 210380844 U CN210380844 U CN 210380844U CN 201921904811 U CN201921904811 U CN 201921904811U CN 210380844 U CN210380844 U CN 210380844U
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- cable
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- modem
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- 238000012360 testing method Methods 0.000 title claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 17
- 239000004020 conductor Substances 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 2
- 241000282326 Felis catus Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013522 software testing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model discloses a portable high-voltage cable channel test communicator, which comprises an interphone, a communication modem in communication connection with the interphone and a grounding box in communication connection with the communication modem; the communication modem is respectively connected with the wiring terminals of the grounding box through wires, and the three-phase wiring terminals of the grounding box are respectively connected with the cable joints of the corresponding homodromous high-voltage cables through coaxial cables. In the process of the cable outer sheath insulation test, the untested aluminum sheath is used as a transmission medium, the two-way interphone is connected to the communication modem through a telephone line, and the communication modem can bidirectionally exchange an analog signal output by the interphone and a more stable electric signal, so that the purpose of transmitting a communication signal on the aluminum sheath is realized.
Description
Technical Field
The utility model relates to a portable high tension cable channel test communications appearance.
Background
At present, when a handover test is carried out in a high-voltage cable channel, the traditional wireless communication system has the defects of short transmission distance, serious signal distortion, serious arrangement and transition time consumption and the like. When testers cooperate underground and above ground, stable, reliable and safe communication means are not available temporarily, and currently, the testers mainly move back and forth in a channel in a test gap to carry out on-the-spot communication or move to the ground to carry out telephone communication. In view of the high tension cable passageway is long, and the passageway drop is big, and the bend is many, and the cat ladder height highly reaches 20m, comes and goes to walk and scramble and not only influence testing personnel's personal safety, also make testing personnel to be detained the time in the tunnel and increase, and test efficiency is low, and the potential safety hazard is many, seriously influences experimental progress.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a portable high tension cable channel test communicator to solve at present and need rely on the experimenter to come and go at the inside back and forth movement of passageway and carry out the problem of communicating on the spot or remove to ground and carry out the phone and communicate.
In order to solve the above technical problem, the utility model provides a portable high-voltage cable channel test communicator, which comprises an interphone, a communication modem in communication connection with the interphone and a grounding box in communication connection with the communication modem; the communication modem is respectively connected with the wiring terminals of the grounding box through wires, and the three-phase wiring terminals of the grounding box are respectively connected with the cable joints of the corresponding homodromous high-voltage cables through coaxial cables; the high-voltage cable comprises a cable body, a first insulating layer wrapped on the outer side of the cable body, a corrugated aluminum sheath wrapped on the outer side of the first insulating layer and a first outer protective sleeve wrapped on the outer side of the corrugated aluminum sheath.
The coaxial cable comprises an inner conductive copper wire, a second insulating layer wrapped outside the inner conductive copper wire, an annular netted conductor wrapped outside the inner conductive copper wire and a second outer protective sleeve wrapped outside the second insulating layer; one end of the coaxial cable is connected with the wiring terminal of the grounding box, an inner conductive copper wire at the other end of the coaxial cable is connected with the corrugated aluminum sheath of the high-voltage cable at one side of the cable joint, and an annular reticular conductor at the other end of the coaxial cable is connected with the corrugated aluminum sheath of the high-voltage cable at the other side of the cable joint; and the inner conductive copper wires of the three-phase coaxial cables are respectively connected with the corrugated aluminum sheaths of the three-phase high-voltage cables on the same side of the cable joint, and the annular reticular conductors of the three-phase coaxial cables are respectively connected with the corrugated aluminum sheaths of the three-phase high-voltage cables on the same side of the cable joint.
Furthermore, the interphone is a two-way communication interphone.
Furthermore, the interphone is in communication connection with the modem through a telephone line.
Further, the interphone and the modem are powered by a mobile power supply.
The utility model has the advantages that: this experimental communications appearance of portable cable channel simple structure conveniently carries, can solve the problem that does not have effective communication means among the current test process, reduces the round trip of experimenter in the passageway and walks around or scramble, can reduce the time that the experimenter is detained in the tunnel by a wide margin, ensures personnel's safety and efficiency of software testing.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Wherein: 1. an interphone; 2. a telephone line; 3. a modem; 4. a ground tank; 5. a coaxial cable; 6. an outer sheath; 7. a cable joint; 8. a corrugated aluminum sheath; 9. an inner conductive copper wire; 10. an annular mesh electrical conductor; 11. a wire; 12. a first insulating layer; 13. the three-phase cable was tested.
Detailed Description
The portable high-voltage cable channel test communicator shown in fig. 1 comprises an interphone 1, a communication modem 3 in communication connection with the interphone 1, and a grounding box 4 in communication connection with the communication modem 3; the communication modem 3 is connected with the connecting terminals of the grounding box 4 through wires 11, and the three-phase connecting terminals of the grounding box 4 are connected with the corresponding cable joints 7 of the high-voltage cables in the same direction through coaxial cables 5. The high-voltage cable comprises a cable body, a first insulating layer 12 wrapped on the outer side of the cable body, a corrugated aluminum sheath 8 wrapped on the outer side of the first insulating layer 12 and a first outer protective sleeve wrapped on the outer side of the corrugated aluminum sheath 8;
the coaxial cable 5 comprises an inner conductive copper wire 9, a second insulating layer wrapped outside the inner conductive copper wire 9, an annular netted conductor 10 wrapped outside the inner conductive copper wire 9 and a second outer protective sleeve wrapped outside the second insulating layer; one end of the coaxial cable 5 is connected with the wiring terminal of the grounding box 4, an inner conductive copper wire 9 at the other end of the coaxial cable 5 is connected with a corrugated aluminum sheath 8 of the high-voltage cable at one side of the cable joint 7, and an annular reticular conductor 10 at the other end of the coaxial cable 5 is connected with the corrugated aluminum sheath 8 of the high-voltage cable at the other side of the cable joint 7; and the same part of the three-phase same-type coaxial cable corresponds to the high-voltage cable on the same side, namely, the inner conductive copper wires of the three-phase coaxial cable are respectively connected with the corrugated aluminum sheaths of the three-phase high-voltage cable on the same side of the cable joint, and the annular reticular conductors of the three-phase coaxial cable are respectively connected with the corrugated aluminum sheaths of the three-phase high-voltage cable on the same side of the cable joint.
The portable cable channel test communicator mainly comprises a portable mobile power supply, a two-way interphone 1 and a communication modem. In the insulation test process of the cable outer sheath, an untested aluminum sheath is used as a transmission medium, the two-way interphone 1 is connected to the communication modem through the telephone line 2, wherein the communication modem can convert analog signals output by the interphone 1 into digital signals, and therefore the purpose of transmitting communication signals on the aluminum sheath is achieved.
According to an embodiment of the present application, the intercom 1 is a two-way communication intercom 1, and the specification of the communication module and the model of the intercom 1 can be further determined by confirming the average resistance value of the corrugated aluminum sheath 8 between the cable joints 7 in the power cable line.
According to one embodiment of the present application, the intercom 1 is in communication connection with the modem 3 through the telephone line 2, and the telephone line 2 is a two-core single-strand pure copper telephone line 2.
According to an embodiment of the application, the interphone 1 and the modem 3 are powered by the mobile power supply, and the interphone 1 and the communication module are powered by the portable mobile power supply, so that the problem that no commercial power exists in a tunnel can be solved, and the feasibility and the portability of the scheme are ensured. Meanwhile, a proper mobile power supply can be determined according to parameters of the interphone, and the type selection is preferentially carried out on the aspects of portability, capacity, self quality and the like.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (4)
1. A portable high-voltage cable channel test communicator comprises a cable body, a first insulating layer, a corrugated aluminum sheath and a first outer protective sleeve, wherein the first insulating layer is wrapped on the outer side of the cable body; the communication instrument is characterized by comprising an interphone, a communication modem in communication connection with the interphone and a grounding box in communication connection with the communication modem; the communication modem is respectively connected with the wiring terminals of the grounding box through wires, and the three-phase wiring terminals of the grounding box are respectively connected with the cable joints of the corresponding homodromous high-voltage cables through coaxial cables;
the coaxial cable comprises an inner conductive copper wire, a second insulating layer wrapped outside the inner conductive copper wire, an annular netted conductor wrapped outside the inner conductive copper wire and a second outer protective sleeve wrapped outside the second insulating layer; one end of the coaxial cable is connected with the wiring terminal of the grounding box, an inner conductive copper wire at the other end of the coaxial cable is connected with the corrugated aluminum sheath of the high-voltage cable at one side of the cable joint, and an annular reticular conductor at the other end of the coaxial cable is connected with the corrugated aluminum sheath of the high-voltage cable at the other side of the cable joint; and the inner conductive copper wires of the three-phase coaxial cables are respectively connected with the corrugated aluminum sheaths of the three-phase high-voltage cables on the same side of the cable joint, and the annular reticular conductors of the three-phase coaxial cables are respectively connected with the corrugated aluminum sheaths of the three-phase high-voltage cables on the same side of the cable joint.
2. The portable high-voltage cable channel test communicator according to claim 1, wherein the interphone is a two-way communication interphone.
3. The portable high-voltage cable channel test communicator according to claim 1, wherein said interphone is communicatively connected to the modem through a telephone line.
4. The portable high-voltage cable channel test communicator of claim 1, wherein the interphone and the modem are powered by a mobile power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921904811.9U CN210380844U (en) | 2019-11-06 | 2019-11-06 | Portable high-voltage cable channel test communication instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921904811.9U CN210380844U (en) | 2019-11-06 | 2019-11-06 | Portable high-voltage cable channel test communication instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210380844U true CN210380844U (en) | 2020-04-21 |
Family
ID=70257329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921904811.9U Active CN210380844U (en) | 2019-11-06 | 2019-11-06 | Portable high-voltage cable channel test communication instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210380844U (en) |
-
2019
- 2019-11-06 CN CN201921904811.9U patent/CN210380844U/en active Active
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