CN1144982A - Junction sleeve for connection of two cables in medium voltage range - Google Patents
Junction sleeve for connection of two cables in medium voltage range Download PDFInfo
- Publication number
- CN1144982A CN1144982A CN 96104562 CN96104562A CN1144982A CN 1144982 A CN1144982 A CN 1144982A CN 96104562 CN96104562 CN 96104562 CN 96104562 A CN96104562 A CN 96104562A CN 1144982 A CN1144982 A CN 1144982A
- Authority
- CN
- China
- Prior art keywords
- hose
- flexible insulated
- band
- flexible
- insulated hose
- 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.)
- Granted
Links
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
- H02G15/1806—Heat shrinkable sleeves
-
- 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
- H02G15/184—Cable junctions protected by sleeves, e.g. for communication cable with devices for relieving electrical stress
-
- 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
- H02G15/184—Cable junctions protected by sleeves, e.g. for communication cable with devices for relieving electrical stress
- H02G15/188—Cable junctions protected by sleeves, e.g. for communication cable with devices for relieving electrical stress connected to a cable shield only
Landscapes
- Cable Accessories (AREA)
Abstract
The invention relates to a cable connection muff for joining the conductors of screened cables in the medium tension range has a crimped or screw connection ferrule and means for controlling the field intensity via insulated shrink sleeves. The conductor connecting area is accessible after shinking operation of the field control cylinder, if not using field control cylinder or using separated field control cylinder. Additional field control is achieved as a result of a taper and insulated tape.
Description
The present invention relates to be used to connect the joint sleeve of two cables in the medium voltate scope, have device, a pressure connector or screwed union that is used for conductor to be connected that is used to control electric field and shrinkage hose with insulation.
A kind of like this joint sleeve is open by German utility model 7608208.Wherein, whole connecting portion all is wrapped in by the insulator that a shrinkage material is done.Wherein, the end of insulator is as also being configured taper or constituting round disclosed by U.S. Pat 3717717.The foundation of this taper is workload that realize with winding technology and need be very big.
The prospectus 2937253 of Germany discloses sheath of a kind of cable end joint that is used to shield or the connecting portion between the shielded type cable and preparation method thereof.When setting up the cable connection, used shrinkage hose here.Wherein, realize control by a kind of electric field controls flexible pipe to electric field.Wherein, this electric field controls flexible pipe covers on the outer conducting layer of every cable and free of discontinuities in it stretches.On this electric field controls flexible pipe, be with one or more heat-shrinkable flexible insulated hoses.This insulation is stretched along whole connecting portion, and wherein, the end of flexible insulated hose is positioned on two outer conducting layers of cable.By concentric extruding, a conductive layer is applied on the insulating barrier, this conductive layer has earth potential and guarantees the reliability of contact thus after joint sleeve is finished, but that the making of the flexible pipe of this concentric extruding shows its cost is very high.
Task of the present invention is, splits the joint sleeve of the described type of initial portion and further develops, and joint sleeve can easily be produced with simple measures, and wherein, the zone of making us doubt on cable conduction layer edge can improve.
Above task of the present invention is solved by following feature: the joint sleeve that is used for connecting two cables in the pressure scope, have device, a pressure connector or a screwed union that is used for conductor to be connected that is used to control electric field and have the insulation shrinkage hose, it is characterized in that
Be provided with at least two electric field controls flexible pipes, wherein, one end of each electric field controls flexible pipe is located on the exposed conductive layer of a cable, and the other end terminates in the place ahead of the join domain of end conductor, be wound with a kind of band on the join domain with insulation property, at least one shrinkage flexible insulated hose shrink sleeve is contained on the electric field controls flexible pipe, wherein, flexible insulated hose terminates in the place ahead at each outer conducting layer top, twining a kind of band in this wise in the end of each flexible insulated hose with insulation characterisitic, promptly be wound into a taper, wherein, the dielectric constant of flexible insulated hose is different from the dielectric constant that is twined tapered band, and the shrinkage hose shrink sleeve of a conduction is contained on this structure, puts a flexible insulated hose on the shrinkage hose that the copper braid over braid of each cable end and shielding conductor are set to conduction and on this structure with shrinking.
Being proposed of task also can be solved by following feature: the joint sleeve that is used for connecting two cables in the pressure scope, that have copper braid over braid and shielding conductor, have device, a pressure connector or a screwed union that is used for conductor to be connected that is used to control electric field and have the insulation shrinkage hose, it is characterized in that, under the end edge of the contraction flexible insulated hose that is covered with join domain, twined the band that one deck at least has insulation property; The end edge of flexible insulated hose just in time is positioned at the place ahead at each edge of exposed conductive layer, its spacing is preferably the three to four-fold of flexible insulated hose wall thickness, in end near shrinkage hose, be wound in taper with a kind of band with insulation property, wherein, the dielectric constant of flexible insulated hose is different with the dielectric constant of the band that is wound in taper, i.e. ε
r(band)＞ε
r(flexible pipe), the winding zone that twines tapered band is stretched over the very short place, the place ahead, edge of cable conduction layer respectively always from the end edge of flexible insulated hose, and the shrinkage hose shrink sleeve of a conduction is contained on the whole length of this structure; Shrink sleeve is equipped with a flexible insulated hose on the shrinkage hose that the copper braid over braid of each cable end and shielding conductor are enclosed within conduction and on this structure.
The advantage of form of implementation of the present invention at first is, does not need flexible insulated hose on the zone of making us doubt at cable conduction layer edge.In addition, be also advantageous in that under the situation of using the described heat-shrinkable electric field controls of first form of implementation flexible pipe, the conductor join domain is still and can touches, because the electric field controls flexible pipe is interrupted, is not covered with connecting portion.In view of the above, also can be after shrinking suit electric field controls flexible pipe by means of the connector presser crimping conductor of conventional, well-known.In second form of implementation of the present invention, do not use the electric field controls flexible pipe, therefore do not have this problem.And in this form of implementation, in making us the zone of doubt, be wound in taper with band with insulation property, constitute funnel-form with position conduction shrinkage hose thereon in view of the above.Its advantage is that shrinkage flexible insulated hose and tapering part to be wound can be set up fast and easily, and wherein, the height of tapering part provides by the wall thickness of at least one flexible insulated hose.
The present invention is described in detail by following three figure now:
Fig. 1 represents the overall structure figure of a joint sleeve of the present invention,
The detail drawing of circle part has wherein used two electric field controls flexible pipes that separate in Fig. 2 presentation graphs 1,
The detail drawing of circle part does not wherein use the electric field controls flexible pipe in Fig. 3 presentation graphs 1.
These two embodiment of the present invention relate to until U
0Shielding between two cables in the middle pressure scope of/U (Um) 18/30 (36) KV connects.When if two such cables need be connected to each other, then need to control the corresponding measure of electric field.This measure is now to realize according to mode of the present invention.
Figure 1 illustrates whole connecting portion of the present invention, wherein, two cables are connected to each other by a generally well-known connecting portion 2.There, the end of cable is correspondingly removed the peel in illustrated mode and is had a device that is used to control electric field.In this embodiment, used the electric field controls flexible pipe 3 of two thermal contractions at least.In view of the above, connecting portion 2 is not capped, and still can make the conductor crimping by generally well-known connector presser after shrinking suit electric field controls flexible pipe 3.But before shrinking suit electric field controls flexible pipe 3, the edge of cable conduction layer 14 is with 9 to twine with a kind of, has avoided the too high of power line to concentrate thus.Thisly be with 9 to have electrical insulation capability, and preferably have ε
r〉=6 dielectric constant, and than Ohmic resistance＞10
12Ω cm.Removed by reaching equably point-blank at conductive layer under the situation of (not having most advanced and sophisticated), also can be with 9.Conductor exposes that the zone has commercially available connector 2 and with being with 15 windings, and the performance that this band has is identical with the performance with 9 in being located at the conductive layer fringe region.Power line is affected in the mode of expectation.
Shrink sleeve is adorned at least one shrinkage flexible insulated hose 7,8 on electric field controls flexible pipe 3.In this form of implementation, two flexible insulated hoses 7 and 8 are overlapped the to each other the contraction suit concentrically with respect to one another.These flexible insulated hoses 7 and 8 terminate in the place ahead at top of each outer conducting layer 14 of cable.Flexible pipe 8 also can be shorter than flexible pipe 7.Before contraction process, below the end of flexible insulated hose 7 and 8, twined one deck band 11 at least, as what in the detail view of Fig. 2, represent.This has with above-described with 9 and 15 identical performances with 11.
Fig. 2 shows the structure of the described coupling box of the first embodiment of the present invention.Wherein, on the end side of the flexible insulated hose of having loaded onto 7,8 with being with 10 to twine, coiled taper as a result.Flexible insulated hose 7 and 8 dielectric constant are different with the dielectric constant with 10, and ε preferably
r(band)＞ε
r(flexible insulated hose).Flexible insulated hose 7,8 and be made of different materials with 10, for example, flexible insulated hose is made of polyethylene, and constitutes by heat sealing adhesive and in order to the fillers that improve dielectric constant with 10.Covered one deck heat-shrinkable flexible pipe 4 above it, this flexible pipe 4 is ratio resistance conduction and that preferably have its numerical value≤40k Ω cm.This heat-shrinkable flexible pipe stretches along whole branch sleeve.This flexible pipe 4 touches the conductive layer 14 of cable at least, wherein, by taper tape wrap 10, constitutes a funnel shaped at the conductive layer fringe region respectively.By known usually, this funnel shaped is used to avoid concentrating of power line.This point also is applicable to form of implementation of the present invention.The shrinkage hose 4 of this conduction is used for the outside electric field that limits simultaneously, because by position copper braid over braid 6 and shielding conductor 12 thereon, earth potential is imposed on the outside of joint sleeve.On whole joint sleeve, be provided with one additional, by the outer protection flexible pipe 5 of shrinkage material.
In Fig. 3, can see a joint sleeve of the present invention, wherein not use the electric field controls flexible pipe to control electric field.Wherein, before shrinking suit flexible insulated hose 7 and 8, below its end edge, twined one deck band 11 at least.And the end edge of flexible insulated hose 7 and 8 is in the place ahead at each edge of conductive layer 14 significantly, and its distance is the three to four-fold at least of flexible insulated hose wall thickness.In view of the above, save flexible insulated hose more than a last embodiment.After shrinking suit flexible insulated hose 7 and 8, be with 10 to twine out a taper with the type of having addressed already by its end.Wherein, as mentioned above, also different mutually with the dielectric constant of flexible insulated hose 7 and 8 and constitute by different materials with 10.Winding scope with 10 is stretched over the place of lacking as far as possible before the top at conductive layer 14 edges from the end of flexible insulated hose 7 and 8 always.Other layered structure is equivalent to the corresponding construction at the joint sleeve shown in Fig. 1.
In form of implementation of the present invention, on the zone of normally making us doubt at the edge of cable conduction layer 14, flexible insulated hose 7 and 8 are not set.If the same here electric field controls flexible pipe that do not use, then taper and the position conduction shrinkage hose 4 thereon by coiled constitutes a funnel shaped.Wherein, advantage is, inotropic flexible insulated hose 7 and 8 and taper to be wound can not only obtain soon but also simply setting up.As previously mentioned, the height of awl is made by the wall thickness of flexible insulated hose 7 or 7 and 8.
Under the situation of using the described electric field controls flexible pipe of the first embodiment of the present invention, prevented that power line too high in the fringe region of cable conduction layer 14 is concentrated, be that power line density has been reduced by similar funnelform body 11, wherein, this be with situation that at least one electric field controls flexible pipe 3 combines under realize.Wherein, flexible insulated hose 7 and 8 corner angle end are by having formed level and smooth transition with 10, by this band, simultaneously at the electric loading that has alleviated edges and corners aspect the power line density.Power line singly is not to make progress towards the conductive layer of funnel-shaped structure towards the seamed edge of cable conduction layer 14 and footpath.Power line is concentrated alleviates that the controlled function be not only by the electric field controls flexible pipe realizes, and with situation that " funnel structure " is associated under realize.By this method with the dual mode electric interfering field, can the edge of conductive layer otherwise make us abandoning using flexible insulated hose in the zone of doubt very much.The advantage of short flexible insulated hose is, can save material on the one hand, can reduce the fitting limit and the assembly work amount of joint sleeve on the other hand.
As mentioned above, under the situation of using two electric field controls flexible pipes 3, but it shrinks also crimp connector of suit electric field controls flexible pipe, and this can not accomplish in prior art so far.Length to electric field controls flexible pipe 3 is selected in this wise, and promptly join domain is uncovered.
Claims (9)
1. be used for connecting the joint sleeve of two cables in the pressure scope, have device, a pressure connector or a screwed union that is used for conductor to be connected that is used to control electric field and have the insulation shrinkage hose, it is characterized in that,
Be provided with at least two electric field controls flexible pipes (3), wherein, one end of each electric field controls flexible pipe (3) is located on the exposed conductive layer (14) of a cable, and the other end terminates in the place ahead of the join domain (2) of end conductor, be wound with a kind of band (15) on the join domain (2) with insulation property, at least one shrinkage flexible insulated hose (7,8) shrink sleeve is contained on the electric field controls flexible pipe (3), wherein, flexible insulated hose (7,8) terminate in the place ahead at each outer conducting layer (14) top, at each flexible insulated hose (7,8) end is being twined a kind of band (10) with insulation characterisitic in this wise, promptly be wound into a taper, wherein, flexible insulated hose (7,8) dielectric constant is different from the dielectric constant that is twined tapered band (10), the shrinkage hose of a conduction (4) shrink sleeve is contained on this structure, and the copper braid over braid (6) of each cable end and shielding conductor (12) are set to the shrinkage hose (4) of conduction and go up and put with shrinking a flexible insulated hose (5) on this structure.
2. be used for connecting the joint sleeve of two cables in the pressure scope, that have copper braid over braid and shielding conductor, have device, a pressure connector or a screwed union that is used for conductor to be connected that is used to control electric field and have the insulation shrinkage hose, it is characterized in that, under the end edge of the contraction flexible insulated hose that is covered with join domain (2) (7,8), twined the band (11) that one deck at least has insulation property; The end edge of flexible insulated hose (7,8) just in time is positioned at the place ahead at each edge of exposed conductive layer (14), its spacing is preferably the three to four-fold of flexible insulated hose wall thickness, in end near shrinkage hose (7,8), be wound in taper with a kind of band (10) with insulation property, wherein, the dielectric constant of flexible insulated hose (7,8) is different with the dielectric constant of the band that is wound in taper (10), i.e. ε
r(band)＞ε
r(flexible pipe), the winding zone that twines tapered band (10) is stretched over the very short place, the place ahead, edge of cable conduction layer (14) respectively always from the end edge of flexible insulated hose, and the shrinkage hose of a conduction (4) shrink sleeve is contained on the whole length of this structure; The shrinkage hose (4) that the copper braid over braid (6) of each cable end and shielding conductor (12) are enclosed within conduction go up and on this structure shrink sleeve a flexible insulated hose (5) is housed.
3. joint sleeve according to claim 1 is characterized in that, each edge of conductive layer (14) is wound a kind of band (9) with insulation property.
4. according to claim 1 or 3 described joint sleeves, it is characterized in that, under its end, be wound with the band (11) that one deck at least has insulation property before shrinking suit flexible insulated hose (7,8).
5. according to described joint sleeve in the above claim, it is characterized in that,
The dielectric constant that band (9,10,11,15) has is ε
r〉=6, than Ohmic resistance＞10
12Ω cm.
6. according to described joint sleeve in the above claim, it is characterized in that,
Flexible insulated hose is made up of two concentric flexible insulated hoses (7,8).
7. according to described joint sleeve in the above claim, it is characterized in that,
The dielectric constant (with respect to 50Hz) of flexible insulated hose (7,8) is ε
r≤ 4.
8. according to described joint sleeve in the above claim, it is characterized in that the ratio Ohmic resistance that the heat-shrinkable flexible pipe (4) of conduction has is＜40k Ω cm.
9. according to described joint sleeve in the above claim, it is characterized in that,
The DIELECTRIC CONSTANT of band (9,10)
rThe DIELECTRIC CONSTANT that is not equal to flexible insulated hose
r
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19513618.7 | 1995-04-10 | ||
| DE1995113618 DE19513618A1 (en) | 1995-04-10 | 1995-04-10 | Cable muff for joining conductors of medium tension screened cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1144982A true CN1144982A (en) | 1997-03-12 |
| CN1091966C CN1091966C (en) | 2002-10-02 |
Family
ID=7759418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96104562 Expired - Fee Related CN1091966C (en) | 1995-04-10 | 1996-04-10 | Junction sleeve for connection of two cables in medium voltage range |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1091966C (en) |
| DE (1) | DE19513618A1 (en) |
| IN (1) | IN188436B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463294C (en) * | 2003-06-24 | 2009-02-18 | 特里博泰克公司 | Multiple-contact woven power connectors |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19857334A1 (en) * | 1998-12-11 | 2000-06-15 | Rxs Schrumpftech Garnituren | Cable set for protecting a cable connection in medium voltage technology |
| DE20009465U1 (en) * | 2000-05-26 | 2000-11-30 | Cellpack Gmbh | Insulated screw connector for power cables |
| DE10026088C1 (en) * | 2000-05-26 | 2001-11-15 | Cellpack Gmbh | Sleeve insulating body has sleeve enclosing screw connector at both ends ending in elastic spouts for accommodating cable ends, openings with bungs or hose seal, field control elements |
| ATE476775T1 (en) * | 2006-06-21 | 2010-08-15 | Abb Technology Ltd | ELECTRICAL FIELD CONTROL DEVICE |
| NO345645B1 (en) * | 2017-11-27 | 2021-05-25 | Nexans | Subsea connector |
| IT202100003098A1 (en) * | 2021-02-12 | 2022-08-12 | Repl Italia S R L | ELECTROMAGNETIC FIELD SENSITIVE ELEMENT FOR MEDIUM VOLTAGE JOINT |
-
1995
- 1995-04-10 DE DE1995113618 patent/DE19513618A1/en not_active Withdrawn
-
1996
- 1996-03-01 IN IN379CA1996 patent/IN188436B/en unknown
- 1996-04-10 CN CN 96104562 patent/CN1091966C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463294C (en) * | 2003-06-24 | 2009-02-18 | 特里博泰克公司 | Multiple-contact woven power connectors |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1091966C (en) | 2002-10-02 |
| DE19513618A1 (en) | 1996-10-17 |
| IN188436B (en) | 2002-09-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CCS TECHNOLOGY CO.,LTD. Free format text: FORMER OWNER: RXS ASSET MANAGEMENT CO., LTD. Effective date: 20030516 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: RXS ASSET MANAGEMENT CO., LTD. Free format text: FORMER NAME OR ADDRESS: RXS KABEL-GARNITUREN GMBH |
|
| CP03 | Change of name, title or address |
Address after: Munich, Federal Republic of Germany Patentee after: RXS Asset Management LLC Address before: Hagen, Federal Republic of Germany Patentee before: RXS KABELGARNITUREN GmbH |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20030516 Patentee after: CCS TECHNOLOGY, Inc. Patentee before: RXS Asset Management LLC |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |