CN102914730B - Optical phase conductor connector box dry withstand voltage test unit and test method - Google Patents

Optical phase conductor connector box dry withstand voltage test unit and test method Download PDF

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Publication number
CN102914730B
CN102914730B CN201210393406.1A CN201210393406A CN102914730B CN 102914730 B CN102914730 B CN 102914730B CN 201210393406 A CN201210393406 A CN 201210393406A CN 102914730 B CN102914730 B CN 102914730B
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optical fiber
test
connector box
optical
auxiliary
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CN102914730A (en
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戚力彦
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
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Abstract

The present invention relates to a kind of optical phase conductor connector box dry withstand voltage test unit and test method, comprise connector box (1), test auxiliary OPPC optical cable of prolongation (4), test auxiliary prolongation all dielectric self-supporting ADSS optical cable (5), voltage source and optical fiber attenuation monitor (7); The high pressure positive electrode (3) of voltage source is connected with connector box (1) upper cartridge body by making alive circuit (2); The high pressure negative electrode ground connection of voltage source; Auxiliary OPPC optical cable (4) one end that extends of test is connected with connector box (1) upper cartridge body, and the other end is connected with optical fiber attenuation monitor (7) by tail optical fiber; Auxiliary all dielectric self-supporting ADSS optical cable (5) one end that extends of test is connected with connector box (1) lower box body, and the other end is connected with optical fiber attenuation monitor (7) by tail optical fiber (6).Withstand voltage properties under the dry withstand voltage condition of optical phase conductor connector box in correspondence that this test unit and method thereof can test different nominal voltage levels in OPPC working line in laboratory simulation.

Description

Optical phase conductor connector box dry withstand voltage test unit and test method
Technical field
The present invention relates to technical field of power system communication, be specifically related to a kind of optical phase conductor connector box dry withstand voltage test unit and test method.
Background technology
Optical phase conductor is a kind of novel electric power special optical wire, possesses the function of wire and communications optical cable, in the electric pressure transmission lines of electricity such as China power domain 10kV, 35kV, 110kV and 220kV, had exploratory application.
Optical phase conductor connector box is a device indispensable in OPPC application in line constructions, and the Performance Detection technology of its correspondence is a new technology.The optical phase conductor connector box power frequency 1min dry withstand voltage test method this time proposed is for carrying out the power frequency 1min dry withstand voltage test of optical phase conductor connector box, investigate the withstand voltage properties of optical phase conductor connector box under the dry withstand voltage condition of correspondence of different nominal voltage levels, guarantee the safe and stable operation of Practical Project.
Summary of the invention
The object of the invention is to solve OPPC engineer applied Problems existing, there is provided a kind of optical phase conductor connector box dry withstand voltage test unit and test method, the withstand voltage properties under the dry withstand voltage condition of optical phase conductor connector box in correspondence that this devices and methods therefor can test different nominal voltage levels in OPPC working line in laboratory simulation.
The object of the invention is to adopt following technical proposals to realize:
A kind of optical phase conductor connector box dry withstand voltage test unit, its improvements are, described test unit comprises connector box 1, the auxiliary extended fiber composite aerial phase line OPPC optical cable 4 of test, test is auxiliary extends all dielectric self-supporting ADSS optical cable 5, voltage source and optical fiber attenuation monitor 7;
The high pressure positive electrode 3 of described voltage source is connected with connector box 1 upper cartridge body by making alive circuit 2; The high pressure negative electrode ground connection of described voltage source; Described test assists extended fiber composite aerial phase line OPPC optical cable 4 one end to be connected with connector box 1 upper cartridge body, and the other end is connected with optical fiber attenuation monitor 7 by tail optical fiber; Auxiliary all dielectric self-supporting ADSS optical cable 5 one end that extends of described test is connected with connector box 1 lower box body, and the other end is connected with optical fiber attenuation monitor 7 by tail optical fiber 6.
Wherein, described voltage source comprises high voltage positive electrode 3 and high voltage negative electrode.
Wherein, described connector box 1 lower box body ground connection.
Wherein, described test assists extended fiber composite aerial phase line OPPC optical cable 4 to be connected with connector box 1 upper cartridge body; The auxiliary all dielectric self-supporting ADSS optical cable 5 that extends of described test is connected with connector box 1 lower box body, and optical fiber wherein and the pre-buried tail optical fiber of phase welding in box body are that optical phase conductor OPPC connector box inside has pre-buried tail optical fiber.
Wherein, described test assists extended fiber composite aerial phase line OPPC optical cable 4 to comprise light unit; Described smooth unit comprises optical fiber; The auxiliary all dielectric self-supporting ADSS optical cable 5 that extends of described test comprises light unit; Described smooth unit comprises optical fiber.
The present invention is based on a kind of optical phase conductor connector box dry withstand voltage test method that another object provides, its improvements are, described test method at the trial, connector box bears the corresponding power frequency 1min dry withstand voltage test of operating voltage grade, in process of the test, connector box 1, without puncturing and flashover, comprises the steps:
(1) described connector box 1 tray interior fibre junction dish is put;
(2) described test assists extended fiber composite aerial phase line OPPC optical cable 4 to continue;
(3) the auxiliary all dielectric self-supporting ADSS optical cable 5 that extends of described test continues;
(4) described connector box 1 box body sealing;
(5) described optical fiber attenuation monitor 7 is configured;
(6) test of power frequency 1min dry withstand voltage is carried out to described connector box 1.
Wherein, in described step (1), there is pre-buried tail optical fiber described optical phase conductor OPPC connector box 1 inside, is assisted by the multi-core fiber of pre-buried tail optical fiber and extends optical fiber cables unit internal optical fiber and be connected in series, make the optical fiber total length of serial connection be greater than 500 meters before test with test.
Wherein, the pre-buried tail optical fiber in described connector box 1 upper cartridge body is connected in series with the auxiliary smooth unit internal optical fiber of extended fiber composite aerial phase line OPPC optical cable 4 of test; Pre-buried tail optical fiber in described connector box 1 lower box body and test is auxiliary extends all dielectric self-supporting ADSS optical fiber cables unit internal optical fiber and be connected in series.
Wherein, described optical fiber total length is that the fiber lengths that the pre-buried tail optical fiber in connector box 1 upper cartridge body is connected in series with the auxiliary smooth unit internal optical fiber of extended fiber composite aerial phase line OPPC optical cable 4 of test adds that the pre-buried tail optical fiber in connector box 1 lower box body assists with test the fiber lengths extending all dielectric self-supporting ADSS optical fiber cables unit internal optical fiber and be connected in series.
Wherein, the pre-buried optical fiber that process continues and fibre-optical splice are positioned over connector box 1 tray interior; fix during welding through the fibre-optical splice (joint refers to the fusion point of optical fiber together with the fused fiber splice in pre-buried tail optical fiber in optical cable) of heat-shrink tube protection, and the radius-of-curvature that remaining fiber reel is put is not less than 30mm.
Wherein, in described step (2), auxiliary to the pre-buried tail optical fiber in described connector box 1 upper cartridge body and the test smooth unit internal optical fiber of extended fiber composite aerial phase line OPPC optical cable 4 is connected in series.
Wherein, in described step (3), by the pre-buried tail optical fiber in described connector box 1 lower box body and test is auxiliary extends all dielectric self-supporting ADSS optical fiber cables unit internal optical fiber and be connected in series.
Wherein, in described step (4), the sealing of connector box 1 box body adopts O-ring seal to realize in conjunction with hot melt adhesive; Namely with hot melt adhesive O-ring seal and box body be sticked together and realize.
Wherein, in described step (5), optical fiber attenuation in optical fiber attenuation monitor 7 pairs of power frequency 1min dry withstand voltage processs of the test when testing, is adopted to carry out follow-on test, and logging test results; The undulating quantity of optical fiber attenuation is no more than ± 0.03dB.
Wherein in, in described step (6), during test, the power frequency 1min first adding 75% does resistance test voltage, then rises to dry resistance test voltage with the speed of 2% trial voltage per second, keep 1min, in process of the test, connector box 1 without puncturing and flashover, simultaneously, utilize the attenuation change situation of optical fiber in optical fiber attenuation monitor monitoring test process, the undulating quantity of optical fiber attenuation is no more than ± 0.03dB.
Wherein, the operating voltage grade of described connector box 1 comprises 10kV, 35kV, 110kV, 220kV and 500kV; Described optical phase conductor connector box power frequency 1min dry withstand voltage trial voltage grade comprises 42kV, 100kV, 265kV, 495kV and 850kV;
The wherein operating voltage grade of connector box 1 and optical phase conductor connector box power frequency 1min dry withstand voltage trial voltage grade one_to_one corresponding, the i.e. corresponding 42kV of 10kV; The corresponding 100kV of 35kV; The corresponding 265kV of 110kV; The corresponding 495kV of 220kV; The corresponding 850kV of 500kV.
Compared with the prior art, the beneficial effect that the present invention reaches is:
1, optical phase conductor connector box dry withstand voltage test unit provided by the invention and test method, it is scheme the simplest and the most direct in laboratory conditions, equipment is simple, time, voltage are easy to control, the transport property of pre-buried tail optical fiber in accurate test splice box is convenient to by testing auxiliary prolongation OPPC and ADSS optical cable, and by the withstand voltage test of different power frequency 1min dry withstand voltages, determine the nominal voltage levels of connector box, and can the performance issue of Timeliness coverage connector box, thus be conducive to improving production quality, guarantee the safe reliability of engineering.
2, optical phase conductor connector box dry withstand voltage test unit provided by the invention and test method, laboratory environment is adopted to apply to actual track connector box the simulated environment emulated for OPPC connector box provides, the voltage that power frequency 1min dry withstand voltage is tested and the time controlled flexibly, gear to actual circumstances environment more.
3, connector box box body fibre junction and dish are put and are all carried out according to the specific requirement of Practical Project line conditions, and fused fiber splice point protection and bending radius all can reflect the situation of actual track connector box tray interior, ensure the applicability of test findings.
4, the auxiliary OPPC of prolongation of test and all dielectric self-supporting ADSS cable connection are connected in series as optical fiber attenuation monitors the fiber channel providing sufficient length by optical fiber, and realistic engineering continuation method, be a kind of way of novelty.
5, in test by applying trial voltage corresponding to different electric pressure, the withstand voltage properties under dry withstand voltage corresponding to the connector box of different nominal voltage levels can be investigated, also can determine the nominal voltage levels of connector box simultaneously.
6, optical fiber attenuation monitor is monitored continuously to the optical fiber attenuation in whole power frequency 1min dry withstand voltage process of the test, and record data, make test figure have more horizontal comparability, reflect the entirety fluctuation situation of optical fiber attenuation in process of the test very intuitively.
Accompanying drawing explanation
Fig. 1 is optical phase conductor connector box dry withstand voltage test unit schematic diagram provided by the invention;
Fig. 2 is optical phase conductor connector box dry withstand voltage test method process flow diagram provided by the invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The object of the invention is to solve optical phase conductor (OpticalFiberCompositePhaseConductor, OPPC) engineer applied Problems existing, provide a kind of optical phase conductor connector box dry withstand voltage test unit and test method, the withstand voltage properties under the dry withstand voltage condition of optical phase conductor connector box in correspondence that the method can test different nominal voltage levels in OPPC working line in laboratory simulation.
Optical phase conductor connector box power frequency 1min dry withstand voltage test unit comprises connector box 1 itself, tests the auxiliary OPPC of prolongation optical cable 4 and tests auxiliary prolongation all dielectric self-supporting ADSS optical cable 5, voltage source, optical fiber attenuation monitor 7, carries out the simulation drawing of OPPC connector box power frequency 1min dry withstand voltage test as shown in Figure 1.
The high pressure positive electrode 3 of described voltage source is connected with connector box 1 upper cartridge body by making alive circuit 2; The high pressure negative electrode ground connection of described voltage source; Described test assists extended fiber composite aerial phase line OPPC optical cable 4 one end to be connected with connector box 1 upper cartridge body, and the other end is connected with optical fiber attenuation monitor 7 by tail optical fiber 6; Auxiliary all dielectric self-supporting ADSS optical cable 5 one end that extends of described test is connected with connector box 1 lower box body, and the other end is connected with optical fiber attenuation monitor 7 by tail optical fiber.
Optical phase conductor connector box dry withstand voltage test method process flow diagram provided by the invention as shown in Figure 2, comprises connector box 1 tray interior fibre junction dish and puts, tests the auxiliary OPPC of prolongation optical cable 4 and continue, test and auxiliaryly extend the preparation process such as all dielectric self-supporting ADSS optical cable 5 continues, the sealing of connector box box body, optical fiber attenuation monitor 7 configuration.During test, first add the regulation trial voltage of 75%, then the withstand voltage of regulation is risen to the speed of 2% trial voltage per second, keep 1min, in process of the test, connector box should without puncturing and flashover, simultaneously, utilize the attenuation change situation of optical fiber in optical fiber attenuation monitor monitoring test process, the undulating quantity of optical fiber attenuation should not exceed ± 0.03dB.
The dry withstand voltage grade that the connector box of different nominal voltage levels is corresponding is as shown in table 1.
The electric pressure that the test of table 1OPPC connector box power frequency 1min dry withstand voltage is corresponding
Connector box operating voltage grade Power frequency 1min dry withstand voltage trial voltage grade
10kV 42kV
35kV 100kV
110kV 265kV
220kV 495kV
500kV 850kV
Concrete steps are as follows:
Connector box 1 tray interior fibre junction dish is put: there is pre-buried tail optical fiber OPPC connector box inside, need before test to extend optical fiber cables unit internal optical fiber be connected in series auxiliary to inner for pre-buried tail optical fiber multi-core fiber and test, guarantee concatenated fiber total length (fiber lengths be connected in series with ADSS in lower box body adds the summation of the fiber lengths be connected in series with OPPC in connector box upper cartridge body) is greater than 500 meters.The pre-buried optical fiber that process continues and fibre-optical splice are answered rule, are positioned over connector box tray interior in order, are fixed by joint, and ensure that fiber bending radius is enough large.Connector box box body fibre junction and dish are put and are all carried out according to the specific requirement of Practical Project line conditions, and fused fiber splice point protection and bending radius all can reflect the situation of actual track connector box tray interior, ensure the applicability of test findings.
The auxiliary OPPC optical cable 4 that extends of test continues: in test, for guaranteeing the accuracy that optical fiber attenuation is monitored, and the fine total length of institute's light-metering should be greater than 500 meters.Under normal circumstances, by inner for connector box upper cartridge body pre-buried tail optical fiber with outside test to assist extend OPPC optical fibre in optical cable and be connected in series, make concatenated fiber total length meet testing requirements.
The auxiliary all dielectric self-supporting ADSS optical cable 5 that extends of test continues: in test, for guaranteeing the accuracy that optical fiber attenuation is monitored, the fine total length of institute's light-metering should be greater than 500 meters.Under normal circumstances, by inner for connector box lower box body pre-buried tail optical fiber with outside test to assist extend all dielectric self-supporting ADSS optical fibre in optical cable and be connected in series, make concatenated fiber total length meet testing requirements.
Connector box 1 box body seals: the long-term work of actual track OPPC connector box, in rugged surroundings, seals very necessary to box body when laboratory is tested.Box body sealing adopts O-ring seal to realize in conjunction with hot melt adhesive.
Configuration optical fiber attenuation monitor 7: in process of the test, adopts special optic fibre decay monitor to test optical fiber attenuation in whole process to power frequency 1min dry withstand voltage and carries out follow-on test, and logging test results.Optical fiber attenuation monitor is monitored continuously to the optical fiber attenuation in whole power frequency 1min dry withstand voltage process of the test, and records data, makes test figure have more horizontal comparability, reflects the entirety fluctuation situation of optical fiber attenuation in process of the test very intuitively.
During test, first add the regulation trial voltage of 75%, then the withstand voltage of regulation is risen to the speed of 2% trial voltage per second, keep 1min, in process of the test, connector box should without puncturing and flashover, simultaneously, utilize the attenuation change situation of optical fiber in optical fiber attenuation monitor monitoring test process, the undulating quantity of optical fiber attenuation should not exceed ± 0.03dB.
The principal feature of technical solution of the present invention utilizes laboratory environment exactly, by Practical Project requirement butt junction box upper cartridge body access OPPC optical cable, lower box body access ADSS optical cable, the continuation method of simulation OPPC circuit practical operation situation, apply the trial voltage that different electric pressure is corresponding again, thus the withstand voltage properties under dry withstand voltage corresponding to the connector box investigating different nominal voltage levels.Adopt laboratory environment for OPPC connector box provides, the simulated environment emulated is applied to actual track connector box, the voltage that power frequency 1min dry withstand voltage is tested and the time controlled flexibly, gear to actual circumstances environment more.
Optical phase conductor connector box dry withstand voltage test unit provided by the invention and test method, equipment is simple, time, voltage are easy to control, the transport property of pre-buried tail optical fiber in accurate test splice box is convenient to by testing auxiliary prolongation OPPC and ADSS optical cable, and by the withstand voltage test of different power frequency 1min dry withstand voltages, determine the nominal voltage levels of connector box, and can the performance issue of Timeliness coverage connector box, thus be conducive to improving production quality, guarantee the safe reliability of engineering.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.

Claims (2)

1. an optical phase conductor connector box dry withstand voltage test unit, it is characterized in that, described test unit comprises connector box (1), auxiliary extended fiber composite aerial phase line OPPC optical cable (4) of test, test is auxiliary extends all dielectric self-supporting ADSS optical cable (5), voltage source and optical fiber attenuation monitor (7);
The high pressure positive electrode (3) of described voltage source is connected with connector box (1) upper cartridge body by making alive circuit (2); The high pressure negative electrode ground connection of described voltage source; Described test assists extended fiber composite aerial phase line OPPC optical cable (4) one end to be connected with connector box (1) upper cartridge body, and the other end is connected with optical fiber attenuation monitor (7) by tail optical fiber; Auxiliary all dielectric self-supporting ADSS optical cable (5) one end that extends of described test is connected with connector box (1) lower box body, and the other end is connected with optical fiber attenuation monitor (7) by tail optical fiber (6);
Described voltage source comprises high voltage positive electrode (3) and high voltage negative electrode;
Described connector box (1) lower box body ground connection;
Described test assists extended fiber composite aerial phase line OPPC optical cable (4) to be connected with connector box (1) upper cartridge body; Auxiliary all dielectric self-supporting ADSS optical cable (5) that extends of described test is connected with connector box (1) lower box body, and the pre-buried tail optical fiber of optical fiber wherein and phase welding in connector box (1) box body is as the pre-buried tail optical fiber of optical phase conductor OPPC connector box;
Described test assists extended fiber composite aerial phase line OPPC optical cable (4) to comprise light unit; Described smooth unit comprises optical fiber; Auxiliary all dielectric self-supporting ADSS optical cable (5) that extends of described test comprises light unit; Described smooth unit comprises optical fiber.
2. an optical phase conductor connector box dry withstand voltage test method, it is characterized in that, described test method at the trial, connector box bears the corresponding power frequency 1min dry withstand voltage test of operating voltage grade, in process of the test, connector box (1), without puncturing and flashover, comprises the steps:
(1) described connector box (1) tray interior fibre junction dish is put;
(2) described test assists extended fiber composite aerial phase line OPPC optical cable (4) to continue;
(3) auxiliary all dielectric self-supporting ADSS optical cable (5) that extends of described test continues;
(4) described connector box (1) box body sealing;
(5) described optical fiber attenuation monitor (7) is configured;
(6) test of power frequency 1min dry withstand voltage is carried out to described connector box (1);
In described step (1), there is pre-buried tail optical fiber described optical phase conductor OPPC connector box (1) inside, before test, the multi-core fiber of pre-buried tail optical fiber is assisted with test and extend optical fiber cables unit internal optical fiber and be connected in series, make the optical fiber total length of serial connection be greater than 500 meters;
Pre-buried tail optical fiber in described connector box (1) upper cartridge body is connected in series with auxiliary extended fiber composite aerial phase line OPPC optical cable (4) the light unit internal optical fiber of test; Pre-buried tail optical fiber in described connector box (1) lower box body and test is auxiliary extends all dielectric self-supporting ADSS optical fiber cables unit internal optical fiber and be connected in series;
Described optical fiber total length is that the fiber lengths that the pre-buried tail optical fiber in connector box (1) upper cartridge body is connected in series with auxiliary extended fiber composite aerial phase line OPPC optical cable (4) the light unit internal optical fiber of test adds that the pre-buried tail optical fiber in connector box (1) lower box body assists with test the fiber lengths extending all dielectric self-supporting ADSS optical fiber cables unit internal optical fiber and be connected in series;
The pre-buried optical fiber that process continues and fibre-optical splice are positioned over connector box (1) tray interior, fix, and the radius-of-curvature that remaining fiber reel is put are not less than 30mm by during welding through the fibre-optical splice of heat-shrink tube protection;
In described step (2), auxiliary to the pre-buried tail optical fiber in described connector box (1) upper cartridge body and test extended fiber composite aerial phase line OPPC optical cable (4) light unit internal optical fiber is connected in series;
In described step (3), by the pre-buried tail optical fiber in described connector box (1) lower box body and test is auxiliary extends all dielectric self-supporting ADSS optical fiber cables unit internal optical fiber and be connected in series;
In described step (4), the sealing of connector box (1) box body adopts O-ring seal to realize in conjunction with hot melt adhesive; Namely with hot melt adhesive O-ring seal and box body be sticked together and realize;
In described step (5), optical fiber attenuation monitor (7) when testing, is adopted to carry out follow-on test to the total optical fiber attenuation after continuing in power frequency 1min dry withstand voltage process of the test, and logging test results; The undulating quantity of optical fiber attenuation is no more than ± 0.03dB;
In described step (6), during test, the power frequency 1min first adding 75% does resistance test voltage, then rise to dry resistance test voltage with the speed of 2% trial voltage per second, keep 1min, in process of the test, connector box (1) is without puncturing and flashover, meanwhile, utilize the attenuation change situation of optical fiber in optical fiber attenuation monitor monitoring test process, the undulating quantity of optical fiber attenuation is no more than ± 0.03dB;
The operating voltage grade of described connector box (1) comprises 10kV, 35kV, 110kV, 220kV and 500kV; Described optical phase conductor connector box power frequency 1min dry withstand voltage trial voltage grade comprises 42kV, 100kV, 265kV, 495kV and 850kV;
The wherein operating voltage grade of connector box (1) and optical phase conductor connector box power frequency 1min dry withstand voltage trial voltage grade one_to_one corresponding, the i.e. corresponding 42kV of 10kV; The corresponding 100kV of 35kV; The corresponding 265kV of 110kV; The corresponding 495kV of 220kV; The corresponding 850kV of 500kV.
CN201210393406.1A 2012-10-16 2012-10-16 Optical phase conductor connector box dry withstand voltage test unit and test method Expired - Fee Related CN102914730B (en)

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