CN109103839A - A kind of transition connecting hose for direct current cables pressure test - Google Patents
A kind of transition connecting hose for direct current cables pressure test Download PDFInfo
- Publication number
- CN109103839A CN109103839A CN201810958343.7A CN201810958343A CN109103839A CN 109103839 A CN109103839 A CN 109103839A CN 201810958343 A CN201810958343 A CN 201810958343A CN 109103839 A CN109103839 A CN 109103839A
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- CN
- China
- Prior art keywords
- test
- sleeve
- resilient sleeve
- direct current
- cable
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cable Accessories (AREA)
Abstract
The present invention relates to a kind of transition connecting hoses for direct current cables pressure test, its technical characteristics is: being made of the resilient sleeve of multistage different inner diameters suit, wherein, the outer diameter of inner elastic sleeve is identical as the internal diameter of outer elastic sleeve, the internal diameter of most inner side resilient sleeve is matched with the outer diameter of test cable, and the outer diameter of outermost resilient sleeve is matched with the internal diameter of test terminal.The present invention is connected by most inner side resilient sleeve with test cable, it is connected by outermost resilient sleeve with test terminal, realize being reliably connected for various sizes of cable and test terminal, efficiently avoid corona in air electric discharge interference, direct current cables pressure test can safely and reliably be carried out, its is easy to use, can effectively improve test efficiency；The ripple on resilient sleeve outer wall can increase frictional force and enclasping force between resilient sleeve simultaneously, the insulating liquid outflow in sleeve cascade dislocation and test terminal be prevented, so that test is more safe and reliable.
Description
Technical field
The invention belongs to power cable technical field, especially a kind of transition for direct current cables pressure test is soft to be connect
Head.
Background technique
In the pressure resistance of power cable product and partial discharge test, external test terminal is needed, effect is connection electricity
Source and the corona in air electric discharge interference for eliminating interface.But due to the diameter of the power cable of different size difference, with it is outer
When connecing test terminal connection, can all occur the unmatched situation of connection size in many cases.Traditional solution is, in electricity
Cable interface outer diameter winds the insulating tape of pencil head shapes, realizes transition connection.The shortcomings that this method is, the process of winding by
It is affected to manual operation, be easy to cause dimensional fits interference or deficiency, the insulating liquid in test terminal is caused to leak shadow
Ring test.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of designs rationally, safe and reliable and user
Just the transition connecting hose for direct current cables pressure test.
The present invention solves its technical problem and adopts the following technical solutions to achieve:
A kind of transition connecting hose for direct current cables pressure test is set with structure by the resilient sleeve of multistage different inner diameters
At, wherein the outer diameter of inner elastic sleeve is identical as the internal diameter of outer elastic sleeve, the internal diameter ruler of most inner side resilient sleeve
Very little to match with the outer diameter of test cable, the outer diameter of outermost resilient sleeve is matched with the internal diameter of test terminal；Pass through elasticity
The matching feature of test cable and test terminal size is realized in the superposition transition step by step of sleeve.
Ripple is formed on the resilient sleeve outer wall.
The resilient sleeve is made of rubber or silastic material.
The advantages and positive effects of the present invention are:
1, the present invention is cascaded using the resilient sleeve of multiple and different internal diameters and is constituted, and passes through most inner side resilient sleeve and test electricity
Cable is connected, and is connected by outermost resilient sleeve with test terminal, realizes various sizes of cable and test terminal
It is reliably connected, efficiently avoids corona in air electric discharge interference, can safely and reliably carry out direct current cables pressure test, use
It is convenient, test efficiency can be effectively improved.
2, the present invention is formed with ripple on each resilient sleeve outer wall, can increase frictional force between resilient sleeve with
Enclasping force prevents the insulating liquid outflow in sleeve cascade dislocation and test terminal, so that test is more safe and reliable.
Detailed description of the invention
Fig. 1 is structure chart of the invention；
Fig. 2 is application connection schematic diagram of the invention；
In figure, 1- inner elastic sleeve, 2- corrugated, 3- outer elastic sleeve, 4- corrugated, 5- cable core,
6- cable insulation jacket, 7- metal connecting piece, 8- test terminal.
Specific embodiment
The present invention is further described below in conjunction with attached drawing.
A kind of transition connecting hose for direct current cables pressure test, as shown in Figure 1, including inner elastic sleeve 1 and outside
Side resilient sleeve 3, two resilient sleeves are all made of the dielectric resiliences material such as rubber or silicon rubber and are made.Outside two resilient sleeves
Corrugated 2 and corrugated 4 are formed respectively on wall, inner elastic sleeve is mounted in the second resilient sleeve and by inside
Corrugated increases the frictional force and enclasping force of two-stage sleeve, prevents two sleeve dislocation；Outer elastic sleeve is mounted on test
The frictional force and enclasping force for increasing sleeve and test terminal in terminal and by the corrugated in outside, prevent in test terminal
Insulating liquid outflow.
Above-described embodiment is the transition connecting hose of two-stage tube-in-tube structure.In fact, the specification ruler according to as defined in cable standard
It is very little, matched resilient sleeve can be prepared；Equally, the size of test terminal is also fixed, can also prepare corresponding rubber sleeve
Cylinder.When in use, what is connect with test cable is most inner side sleeve, and what is be connected with test terminal is outermost sleeve, and centre is logical
The intermediate sizes sleeve for crossing superposition connects step by step.Therefore, the present invention can be set with by the resilient sleeve of multistage different inner diameters and be constituted,
The outer diameter of inner elastic sleeve and the internal diameter of outer barrel are identical, realize expanding function by the cascade superposition of resilient sleeve
Energy.The internal diameter of most inner side sleeve and the outer diameter of test cable are identical, the outer diameter of outermost sleeve and test terminal
Internal diameter is identical.
Fig. 2 gives the application connection schematic diagram of the transition connecting hose using two-level sleeve structure.Test cable is (by cable
Core 5 and the cable insulation jacket 6 of outside are constituted) the internal diameter of outer diameter and inner elastic sleeve match.When in use, first
First, test cable is mounted in inner elastic sleeve；Then outer elastic sleeve is covered on the outer diameter of inside resilient sleeve,
Size is socketed according to the actual situation, not cause the deformation of inner elastic sleeve extruding to be advisable；Finally, outer elastic sleeve and test
Terminal 8 connects, and cable core is connected with the power supply line inside test terminal by metal connecting piece 7.After the completion of above-mentioned connection, i.e.,
It can carry out direct current cables pressure test.
It is emphasized that embodiment of the present invention be it is illustrative, without being restrictive, therefore packet of the present invention
Include and be not limited to embodiment described in specific embodiment, it is all by those skilled in the art according to the technique and scheme of the present invention
The other embodiments obtained, also belong to the scope of protection of the invention.
Claims (3)
1. a kind of transition connecting hose for direct current cables pressure test, it is characterised in that: by the resilient sleeve of multistage different inner diameters
Cylinder suit is constituted, wherein the outer diameter of inner elastic sleeve is identical as the internal diameter of outer elastic sleeve, most inner side resilient sleeve
Internal diameter matched with the outer diameter of test cable, the outer diameter of outermost resilient sleeve is matched with the internal diameter of test terminal；
By the superposition transition step by step of resilient sleeve, the matching feature of test cable and test terminal size is realized.
2. a kind of transition connecting hose for direct current cables pressure test according to claim 1, it is characterised in that: described
Ripple is formed on resilient sleeve outer wall.
3. a kind of transition connecting hose for direct current cables pressure test according to claim 1 or 2, it is characterised in that:
The resilient sleeve is made of rubber or silastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958343.7A CN109103839A (en) | 2018-08-22 | 2018-08-22 | A kind of transition connecting hose for direct current cables pressure test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958343.7A CN109103839A (en) | 2018-08-22 | 2018-08-22 | A kind of transition connecting hose for direct current cables pressure test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109103839A true CN109103839A (en) | 2018-12-28 |
Family
ID=64850642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810958343.7A Pending CN109103839A (en) | 2018-08-22 | 2018-08-22 | A kind of transition connecting hose for direct current cables pressure test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109103839A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086912A (en) * | 2020-09-11 | 2020-12-15 | 西南石油大学 | Distribution cable phase-to-phase connecting line for live working work area |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5294752A (en) * | 1989-01-16 | 1994-03-15 | Pirelli Cavi S.P.A. | Multi-layer elastic sleeves for electric power cable joints and joints therewith |
| CN2445461Y (en) * | 1999-11-27 | 2001-08-29 | 林荫 | Wire connector |
| CN104169075A (en) * | 2012-03-06 | 2014-11-26 | 泰科电子瑞侃有限责任公司 | Multi-layer heat shrinkable tubular sleeve |
| CN204578045U (en) * | 2015-04-14 | 2015-08-19 | 国家电网公司 | A kind of capping of electric power protection pipe |
| US20170250499A1 (en) * | 2014-09-22 | 2017-08-31 | Prysmian S.P.A. | Cable termination with an integrated monitoring device |
| CN206671475U (en) * | 2017-06-28 | 2017-11-24 | 广州供电局有限公司 | Corona-proof cable attachment structure and high-tension cable oscillation wave partial discharge test system |
-
2018
- 2018-08-22 CN CN201810958343.7A patent/CN109103839A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5294752A (en) * | 1989-01-16 | 1994-03-15 | Pirelli Cavi S.P.A. | Multi-layer elastic sleeves for electric power cable joints and joints therewith |
| CN2445461Y (en) * | 1999-11-27 | 2001-08-29 | 林荫 | Wire connector |
| CN104169075A (en) * | 2012-03-06 | 2014-11-26 | 泰科电子瑞侃有限责任公司 | Multi-layer heat shrinkable tubular sleeve |
| US20170250499A1 (en) * | 2014-09-22 | 2017-08-31 | Prysmian S.P.A. | Cable termination with an integrated monitoring device |
| CN204578045U (en) * | 2015-04-14 | 2015-08-19 | 国家电网公司 | A kind of capping of electric power protection pipe |
| CN206671475U (en) * | 2017-06-28 | 2017-11-24 | 广州供电局有限公司 | Corona-proof cable attachment structure and high-tension cable oscillation wave partial discharge test system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086912A (en) * | 2020-09-11 | 2020-12-15 | 西南石油大学 | Distribution cable phase-to-phase connecting line for live working work area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181228 |