CN103346509A - Improved coaxial cable connector hot-line mounting technology - Google Patents
Improved coaxial cable connector hot-line mounting technology Download PDFInfo
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- CN103346509A CN103346509A CN201310311312XA CN201310311312A CN103346509A CN 103346509 A CN103346509 A CN 103346509A CN 201310311312X A CN201310311312X A CN 201310311312XA CN 201310311312 A CN201310311312 A CN 201310311312A CN 103346509 A CN103346509 A CN 103346509A
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Abstract
The invention relates to an improved coaxial cable connector hot-line mounting technology. The technology comprises the following steps of (1) protective layer inductive voltage reduction, (2) hot-line construction protection and (3) coaxial cable connector technology implementation, wherein the step (1) comprises the sub-steps that by the adoption of a vacuum breaker, a cable protective layer is grounded and the potential of the cable protective layer is reduced, the step (2) comprises the sub-steps that by the adoption of a piercing tool, a coaxial cable insulating layer is pierced at the upper end of a coaxial cable to be constructed, and a coaxial cable core is grounded, and the step (3) comprises the sub-step that a special construction technology of a coaxial cable connector is adopted to conduct construction. Compared with the prior art, the improved coaxial cable connector hot-line mounting technology has the advantages of being simple, capable of reducing cost and the like.
Description
Technical field
The present invention relates to a kind of coaxial fitting mounting process, especially relate to the charged mounting process of a kind of modified model coaxial fitting.
Background technology
For serving urban construction by measuring to fundamental change, urban power distribution network is just progressively transformed to underground cable by overhead wire.The district though the main flow power distribution network still adopts the overhead wire form at present, forms when hindering in some roads, gully on the outskirts of a town, also needs use to cross over cable.China also is in the urbanization process at present, and along with the continuous expansion in city, the proportion of underground cable in distribution is increasing.
More and more higher along with the cable rate, EHV transmission also more and more adopts cable mode, be single-core cable and extra-high-tension cable adopts, this just need carry out sheath and replace to reduce induced current on the sheath, and this just need arrange cable grounding line and the sheath case that replaces.
Owing to the urban construction emerge in multitude, road widening and reconstruction are a lot of simultaneously, often need carry out the displacement of transposition equipment and construct.In addition, the stolen phenomenon of transposition equipment is serious, often need carry out transposition equipment and recover construction.More than construction all needs to carry out coaxial cable spreading or recovery, and therefore convenient, the construction technology of coaxial cable transition joint efficiently seems very important., generally under condition permission situation, all take the treatment measures that have a power failure both at home and abroad, be correlated with like this and want interruption maintenance with electric unit, can bring about great losses, live line working then is an emerging engineering, and this just need limit the electric current of sheath induction cable.
Summary of the invention
Purpose of the present invention is exactly to provide the charged mounting process of modified model coaxial fitting that a kind of technology is simple, reduce cost for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions: the charged mounting process of a kind of modified model coaxial fitting is characterized in that this technology may further comprise the steps:
(1) reduces the sheath induced voltage: adopt vacuum circuit-breaker, with cable sheath ground connection, reduce the electromotive force of cable sheath;
(2) charging construction protection: adopt Centesis instrument, in the coaxial cable upper end of construction, pierce through coaxial cable insulation cable, with coaxial cable core ground connection;
(3) coaxial fitting technology: adopt the special-purpose construction technology of coaxial fitting.This special use construction technology is with reference to the part technological requirement construction of 10kV crosslinked cable transition joint.
The described vacuum circuit-breaker of step (1) is arranged on the coaxial cable end that is connected in cable.
The described vacuum circuit-breaker of step (1) is the circuit breaker of externally connected portable formula band vacuum interrupter, and this circuit breaker is connected on the cable sheath.
The described Centesis instrument of step (2), comprise acupuncture, punch block, knob, earth connection and earth connection jockey, described knob is arranged in the acupuncture, the position of control acupuncture, described acupuncture is fixed on the punch block, and its bottom is pierced through coaxial cable insulation cable and is connected with the coaxial cable core, and described earth connection one end connects acupuncture, the other end connects the earth connection jockey, and described earth connection jockey is connected on the ground connection row.
The described coaxial fitting of step (3) comprises inner core tube connector, outer core tube connector, baffle ring, insulating tape, water blocking tape and heat-shrink tube; Described inner core tube connector two ends connect the inner core of two sections coaxial cables respectively, and at the outer lapped insulation band of inner core tube connector, described outer core tube connector connects the outer core of two ends coaxial cable respectively, described baffle ring is installed in outer core tube connector two ends, outside lapped insulation band and water blocking tape, described thermoplastic tube is arranged on the outside of coaxial fitting.
Described outer core tube connector is made up of two halves up and down.
Described outer core tube connector comprises cylindrical section and centrum section.
Described baffle ring is arranged on the conical section of outer core tube connector, and the outer core copper wire of coaxial cable is arranged in the middle of baffle ring and the outer core tube connector conical section.
Outside described baffle ring and the outer core tube connector, be followed successively by insulating tape lapping layer, water blocking tape lapping layer and heat-shrink tube.
The present invention at first analyzes at the model of charging construction, draw generally speaking, and the situation of cable sheath induced voltage under the extreme case, select the vacuum circuit-breaker of OK range, analyze cable one end ground connection, under the situation of an end job, the limited case of working end induced voltage, and further analyze in case of under the abnormal conditions, how Centesis instrument controls the working end induced voltage is not had sudden change.
According to the actual needs of coaxial fitting, live line working is carried out in the coaxial fitting that design is fit to then.
Compared with prior art, the present invention can further solve the potential safety hazard that charging construction brings, and improves workmen's construction safety coefficient, reduces workmen's risk of getting an electric shock; Help the workmen to increase operating efficiency, promote work quality, reduce resource and drop into, big speed raising whole construction course; The work progress electrical network does not cut off the power supply, and reduces the cost of safeguarding construction greatly.
Description of drawings
Fig. 1 reduces the structural representation of sheath induced voltage for the present invention;
Fig. 2 is the structural representation of charging construction protection of the present invention;
Fig. 3 is the puncture structural representation of earthing device of the present invention;
Fig. 4 is the structural representation of coaxial fitting of the present invention.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment
The charged mounting process of a kind of modified model coaxial fitting, this technology may further comprise the steps:
(1) reduce the sheath induced voltage: as shown in Figure 1,1 is high pressure, ultrahigh voltage power cable, selects cable sheath ground connection form for use by the actual track situation.2 is coaxial cable inner core, and 3 is the outer core of coaxial cable.By vacuum circuit-breaker 4, coaxial cable inner core 2, the outer core 3 of coaxial cable ground connection are successively handled, reduce the sheath induced voltage.
(2) charging construction protection: after the step 1, with puncture grounding apparatus 5, with coaxial cable inner core 2 ground connection, keep construction standard coaxial cable inner core 2 and the earth equipotential, protection workmen safety.
(3) coaxial fitting technology: adopt the special-purpose construction technology of coaxial fitting that coaxial fitting is installed.Wherein: coaxial fitting as shown in Figure 4, comprises heat-shrink tube 12, inner core tube connector 13, outer core tube connector 14, insulating tape 15, baffle ring 16 and water blocking tape 17.Described inner core tube connector 13 two ends connect two sections coaxial cable inner core wire cores 10 respectively, and at inner core tube connector 13 outer lapped insulation bands 15, described outer core tube connector 14 connects the outer core 3 of two ends coaxial cable respectively, described baffle ring 16 is installed in outer core tube connector 14 two ends, outside lapped insulation band 15 and water blocking tape 17, described thermoplastic tube 12 is arranged on the outside of coaxial fitting.
Claims (9)
1. charged mounting process of modified model coaxial fitting is characterized in that this technology may further comprise the steps:
(1) reduces the sheath induced voltage: adopt vacuum circuit-breaker, with cable sheath ground connection, reduce the electromotive force of cable sheath;
(2) charging construction protection: adopt Centesis instrument, in the coaxial cable upper end of construction, pierce through coaxial cable insulation cable, with coaxial cable core ground connection;
(3) coaxial fitting technology: adopt the special-purpose construction technology of coaxial fitting.
2. the charged mounting process of a kind of modified model coaxial fitting according to claim 1 is characterized in that, the described vacuum circuit-breaker of step (1) is arranged on the coaxial cable end that is connected in cable.
3. the charged mounting process of a kind of modified model coaxial fitting according to claim 1 is characterized in that, the described vacuum circuit-breaker of step (1) is the circuit breaker of externally connected portable formula band vacuum interrupter, and this circuit breaker is connected on the cable sheath.
4. the charged mounting process of a kind of modified model coaxial fitting according to claim 1, it is characterized in that, the described Centesis instrument of step (2), comprise acupuncture, punch block, knob, earth connection and earth connection jockey, described knob is arranged in the acupuncture, the position of control acupuncture, described acupuncture is fixed on the punch block, its bottom is pierced through coaxial cable insulation cable and is connected with the coaxial cable core, described earth connection one end connects acupuncture, the other end connects the earth connection jockey, and described earth connection jockey is connected on the ground connection row.
5. the charged mounting process of a kind of modified model coaxial fitting according to claim 1 is characterized in that, the described coaxial fitting of step (3) comprises inner core tube connector, outer core tube connector, baffle ring, insulating tape, water blocking tape and heat-shrink tube; Described inner core tube connector two ends connect the inner core of two sections coaxial cables respectively, and at the outer lapped insulation band of inner core tube connector, described outer core tube connector connects the outer core of two ends coaxial cable respectively, described baffle ring is installed in outer core tube connector two ends, outside lapped insulation band and water blocking tape, described thermoplastic tube is arranged on the outside of coaxial fitting.
6. the charged mounting process of a kind of modified model coaxial fitting according to claim 5 is characterized in that, described outer core tube connector is made up of two halves up and down.
7. the charged mounting process of a kind of modified model coaxial fitting according to claim 5 is characterized in that, described outer core tube connector comprises cylindrical section and centrum section.
8. the charged mounting process of a kind of modified model coaxial fitting according to claim 5 is characterized in that described baffle ring is arranged on the conical section of outer core tube connector, and the outer core copper wire of coaxial cable is arranged in the middle of baffle ring and the outer core tube connector conical section.
9. the charged mounting process of a kind of modified model coaxial fitting according to claim 5 is characterized in that, outside described baffle ring and the outer core tube connector, is followed successively by insulating tape lapping layer, water blocking tape lapping layer and heat-shrink tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310311312.XA CN103346509B (en) | 2013-07-23 | 2013-07-23 | The charged mounting process of a kind of coaxial fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310311312.XA CN103346509B (en) | 2013-07-23 | 2013-07-23 | The charged mounting process of a kind of coaxial fitting |
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| Publication Number | Publication Date |
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| CN103346509A true CN103346509A (en) | 2013-10-09 |
| CN103346509B CN103346509B (en) | 2016-05-04 |
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| CN201310311312.XA Active CN103346509B (en) | 2013-07-23 | 2013-07-23 | The charged mounting process of a kind of coaxial fitting |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108011209A (en) * | 2018-01-12 | 2018-05-08 | 国网四川省电力公司成都供电公司 | High-voltage cable joint is grounded powered prosthetic device and powered restorative procedure |
| CN109273958A (en) * | 2018-09-13 | 2019-01-25 | 苏州热工研究院有限公司 | A kind of tool for nuclear leve coaxial fitting production |
| CN110829149A (en) * | 2019-10-25 | 2020-02-21 | 南京聚联输变电安装有限责任公司 | Improved coaxial cable joint live-line installation process |
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| GB1383909A (en) * | 1971-04-15 | 1974-02-12 | British Insulated Callenders | Electric distribution cable joints |
| CN101645548A (en) * | 2009-08-25 | 2010-02-10 | 山东电力集团公司淄博供电公司 | Method for grounding single-core high-voltage cable metal sheath |
| CN201540972U (en) * | 2009-06-11 | 2010-08-04 | 西安神电高压电器有限公司 | Plug-in type cable joint with overvoltage protector |
| CN101825657A (en) * | 2010-05-12 | 2010-09-08 | 国网电力科学研究院 | Medium-high voltage single-core crosslinked cable induction voltage and circular-current online detection method and device |
| CN102097762A (en) * | 2010-12-21 | 2011-06-15 | 江苏省电力公司无锡供电公司 | Electrified repair device for earthing cable |
| JP2011211778A (en) * | 2010-03-29 | 2011-10-20 | Jfe Steel Corp | Jig and method for grounding power cable |
| CN202333596U (en) * | 2011-12-13 | 2012-07-11 | 衡水供电公司 | Tool for puncturing, grounding and discharging cable |
| CN202585777U (en) * | 2012-02-23 | 2012-12-05 | 广东电网公司佛山供电局 | Coaxial cable intermediate joint |
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2013
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1383909A (en) * | 1971-04-15 | 1974-02-12 | British Insulated Callenders | Electric distribution cable joints |
| CN201540972U (en) * | 2009-06-11 | 2010-08-04 | 西安神电高压电器有限公司 | Plug-in type cable joint with overvoltage protector |
| CN101645548A (en) * | 2009-08-25 | 2010-02-10 | 山东电力集团公司淄博供电公司 | Method for grounding single-core high-voltage cable metal sheath |
| JP2011211778A (en) * | 2010-03-29 | 2011-10-20 | Jfe Steel Corp | Jig and method for grounding power cable |
| CN101825657A (en) * | 2010-05-12 | 2010-09-08 | 国网电力科学研究院 | Medium-high voltage single-core crosslinked cable induction voltage and circular-current online detection method and device |
| CN102097762A (en) * | 2010-12-21 | 2011-06-15 | 江苏省电力公司无锡供电公司 | Electrified repair device for earthing cable |
| CN202333596U (en) * | 2011-12-13 | 2012-07-11 | 衡水供电公司 | Tool for puncturing, grounding and discharging cable |
| CN202585777U (en) * | 2012-02-23 | 2012-12-05 | 广东电网公司佛山供电局 | Coaxial cable intermediate joint |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108011209A (en) * | 2018-01-12 | 2018-05-08 | 国网四川省电力公司成都供电公司 | High-voltage cable joint is grounded powered prosthetic device and powered restorative procedure |
| CN108011209B (en) * | 2018-01-12 | 2024-05-14 | 国网四川省电力公司成都供电公司 | Live repair device and live repair method for high-voltage cable connector grounding wire |
| CN109273958A (en) * | 2018-09-13 | 2019-01-25 | 苏州热工研究院有限公司 | A kind of tool for nuclear leve coaxial fitting production |
| CN109273958B (en) * | 2018-09-13 | 2020-10-02 | 苏州热工研究院有限公司 | Tool for manufacturing nuclear-grade coaxial cable connector |
| CN110829149A (en) * | 2019-10-25 | 2020-02-21 | 南京聚联输变电安装有限责任公司 | Improved coaxial cable joint live-line installation process |
| CN110829149B (en) * | 2019-10-25 | 2021-02-09 | 南京聚联输变电安装有限责任公司 | Improved coaxial cable joint live-line installation process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103346509B (en) | 2016-05-04 |
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