GB2040112A - Splice connector housing with shield break - Google Patents
Splice connector housing with shield break Download PDFInfo
- Publication number
- GB2040112A GB2040112A GB7943453A GB7943453A GB2040112A GB 2040112 A GB2040112 A GB 2040112A GB 7943453 A GB7943453 A GB 7943453A GB 7943453 A GB7943453 A GB 7943453A GB 2040112 A GB2040112 A GB 2040112A
- Authority
- GB
- United Kingdom
- Prior art keywords
- housing
- external surface
- central
- outermost
- housing portion
- 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
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
- H02G15/103—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes with devices for relieving electrical stress
Landscapes
- Cable Accessories (AREA)
- Multi-Conductor Connections (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
A splice connector housing (4) for high voltage cables has a central tubular portion (28) of insulating elastomeric material, and first and second tubular end portions (32, 36) of conductive elastomeric material, the central portion having an external surface (30), the first end portion having an outermost axially extending surface (34) forming an axial continuation of the external surface of the central portion, and the second end portion 36 having an outermost axially extending surface (38) spaced inwardly of the envelope of the external surface (30), said external surface (30) extending axially to overlap the outermost surface (38) of the second end portion around the entire circumference thereof, and said central housing portion (28) having an annular skirt part (42) radially defined by said external surface (30) and said outermost surface (38) of said second housing end portion, the skirt part (42) providing a shield break. <IMAGE>
Description
SPECIFICATION
Splice connector housing with shield break
The present invention relates to electrical connectors and more particularly to a high voltage splice connection with a shield break and still more particu marly to a housing for such connector, such that the housing provides the shield break.
It is known that the current carrying capacity of cables connected by high voltage shielded connectors can be enhanced by means of shield breaks.
The present invention provides a way of increasing the current carrying capacity of cables connected by the high voltage splice connector of Silva et al.
U.S. Patent No. 4,034,151, assigned to us, by incorporating a shield break in such connector. The disclosure of the Silva et al. patent is incorporated herein by reference, and the connector of the Silva et al. patent is hereinafter called the Silva connector.
The Silva connector is used for connecting high voltage cables, each having a conductor, insulation surrounding the conductor and a shield around the insulation. The connector includes a pair of adaptor sleeves for placement one at the terminus of each cable, means for connecting bared portions of the conductors together and a housing for placement over the adaptor sleeves and connecting means to engage the adaptor sleeves along an interface between each adaptor sleeve and the housing and to enclose the connection between the bared portions of the conductors.The Silva connector further comprises a heat transfer jacket for placement over the connection between the bared portions of the conductors and having a longitudinal length sufficient to extend longitudinally between the adaptor sleeves and a thickness sufficient to extend radially between the connection and the housing, the jacket being constructed of a material of relatively high thermal conductivity, and complementary means on the heat transfer jacket and the adaptor sleeves for engaging the jacket with each adaptor sleeve to locate and preclude movement of the adaptor sleeves longitudinally relative to one another.
With further reference to the Silva connector, each adaptor sleeve has a portion of electrically conductive elastomeric material and a portion of insulating elastomeric material. The conductive portion of each adaptor sleeve engages the shield of its associated cable and the adjacent cable insulation and the insulating portion engages the cable insulation. The housing has a central portion of insulating elastomeric material and two end portions of electrically conductive elastomeric material. The conductive end portions of the housing engage the conductive portions of the adaptor sleeves. The outer surface of the central portion of the housing is provided with a covering of electrically conductive material the ends of which overlap and engage the conductive end portions of the housing.Thus, a continuous shielding system across the splice connection between the shield of the cables is provided by the electrically conductive portions of the adaptor sleeves, the electrically conductive end portions of the housing and the covering of electrically conductive material on the central portion of the housing. The covering on the central portion of the housing may be provided by an electrically conductive heat shrink tube.
It is a feature of the connector embodying the present invention that the shield break is attained by a relatively simple modification of the housing of the
Silva connector.
The inventive splice connector housing embodying the invention has a central tubular portion of insulating elastomeric material and first and second tubular end portions of electrically conductive elastomeric material, and coaxial with the central portion. The central housing portion has an external surface. The first end portion has an outermost axially extending surface which forms an axial continuation of the external surface of the central housing portion, and the second end portion has an outermost axially extending surface which is spaced inwardly with respect to the envelope of the external surface of the central portion.The external surface of the central housing portion extends axially to overlap the outermost surface of the second portion around the entire circumference thereof and the central housing portion has an annular skirt part radially defined by the external surface of the central housing portion and the outermost axially extending surface of the second housing end portion.
The housing is provided with a covering of electrically conductive material one end of which overlaps and engages the outermost surface of the first housing end portion. The covering extends along the external surface of the central housing portion and the other end of the covering is located on such external surface at a location overlapping the outermost surface of the second housing end portion, radially spaced outwardly therefrom on the annular skirt part.
It is the interposition of the annular skirt part radially between the outermost surface of the second end portion of the housing and the covering of electrically conducting material which provides the desired shield break. There is no shield break between the covering and the outermost surface of the first housing end portion.
Where the housing is to be used in a splice which is to be directly buried in the earth, the shield must be insulated from the conducting earth. Therefore, the housing is provided with outer insulation, preferably by a heat shrink tube of insulating material, such as polyvinyl chloride or polyethylene, overlying the conductive covering and extending over the ends of the first and second housing end portions.
In order that the invention may be more readily understood, reference will now be made to the accompanying drawings, in which:
FIG. 1 is a longitudinal view, mostly in cross section, of a completed splice connection utilizing a housing embodying the present invention:
FIG. 2 is an enlarged fragmentary view of a portion of what is shown in FIG. 1, toward the right hand end thereof; and
FIG. 3 is an enlarged fragmentary view of a portion of what is shown in FIG. 1, toward the lefthand end thereof.
FIG. 1 shows a completed splice connection utiliz ing an outer housing embodying the present invention and indicated generally at 4.
The splice connection is between a pair of high voltage cables 6 and 8 each having a central conductor 10 surrounded by insulation 12 in turn surrounded by a conductive shield 14.
In addition to housing 4, the other components of the splice connection, and the organization thereof, are all as disclosed in the Silva et al. patent and inciude a pair of adaptor sleeves 16, an electrical contact element in the form of a metallic ferrule 18 and a heat transferjacket 20.
Each adaptor sleeve 16 includes a portion 22 of insulating elastomeric material and an end portion 24 of electrically conductive elastomeric material, portions 22 and 24 being joined by being molded together. Conductive portion 24 has a bore portion 26 which engages shield 14 and makes an electrical connection therewith.
Housing 4 has a central tubular portion 28 of insulating elastomeric material and having an external surface 30 and a first tubular end portion 32 of electrically conductive elastomeric material and coaxial with portion 28. End portion 32 has an outermost axially extending surface 34 forming an axial continuation of external surface 30.
Housing 4 further has a second tubular end portion 36 of electrically conductive elastomeric material and coaxial with portion 28. End portion 36 has an outermost axially extending surface 38 which is spaced radially inwardly of the envelope of external surface 30.
External surface 30 extends in the axial direction away from end portion 32 to overlap outermost surface 38, as indicated at 40, around the entire circumference thereof. Thus, central housing portion 28 has an annular skirt part 42 which is substantially axially coextensive with outermost surface 38. Skirt part 42 is radially defined by external surface 30 of central portion 28 and outermost surface 38 of second end portion 36.
External surface 30 is provided with a covering 44 of electrically conductive material which extends along surface 30 and which has a first end 46 which overlaps and engages outermost surface 34 of first end portion 32 and a second end 48 which overlaps but does not engage outermost surface 38 of second end portion 36, being located on external surface 30 on skirt part 42, about midway intermediate the axial ends thereof. Covering 44 may conveniently and satisfactorily be provided by a heat shrink tube of electrically conductive material.
Preferably, housing portions 32 and 36 are each joined to housing 30 by being molded thereto.
It is the interposition of skirt part 42 radially between outermost surface 38 of second end portion 36 of housing 4 and covering 44 which provides the desired shield break. There is no shield break between covering 44 and outermost surface 34 offirst end portion 32.
Thus, the shield system of the splice connection shown in FIG. 1 is provided by shield 14 of cable 6, conductive portion 24 of adaptor sleeve 16 associated with cable 6, first conductive end portion 32 of housing 4, covering 44 and by shield 14 of cable 8 conductive portion 24 of adaptor sleeve 16 associated with cable 8 and second conductive end portion 36 of housing 4. The shield system is broken by skirt part 42 between second conductive end portion 36 and covering 44.
Skirt part42 can be easily achieved by means of a simple mold insert which produces outermost surface 38, resulting in a radial gap which is filled with insulating elastomeric material when central housing portion 28 is molded, thus to form skirt part 42.
The radial dimension of skirt part 42 can be approximately 0.100 inch (2.54 mm).
Where housing 4 is to be used in a splice which is to be directly buried in the earth, the shield must be insulated from the conducting earth. Consequently, housing 4 is provided with outer insulation, preferably a heat shrink tube 50 of insulating material, such as polyvinyl chloride or polyethylene, overlying conductive covering 44 and extending over the ends of housing portions 32 and 36.
Claims (10)
1. Asplice connector housing having:
a tubular central housing portion of insulating elastomeric material, said central portion having an external surface;
a tubular first end housing portion of conductive elastomeric material coaxial with the central housing portion, said first end housing portion having an axially extending first outermost surface forming an axial continuation of the external surface of the central housing portion; and
a tubular second end housing portion of conductive elastomeric material coaxial with the central housing portion, said second end housing portion having an axially extending second outermost surface spaced inwardly of the envelope of the external surface of the central housing portion;
the central housing portion including an annular skirt part extending axially to overlap the second end housing portion, the external surface of the central housing portion extending axially along the skirt part to overlap the second outermost surface of the second end housing portion around the entire circumference thereof such that the skirt part is defined radially by said external surface and said second outermost surface and provides insulating material radially between said external surface and said sec- - ond outermost surface.
2. A housing as claimed in claim 1, wherein said external surface is provided with a covering of elec- trically conductive material the first end of which overlaps and engages said outermost surface of said first end housing portion and the second end of which overlaps but does not engage said outermost surface of said second end housing portion.
3. A housing as claimed in claim 2, wherein said second end of said covering is located on said external surface on said skirt part.
4. A housing as claimed in claim 2 or3, wherein said covering is provided buy a heat shrink tube of electrically conductive material.
5. A housing as claimed in claim 2,3 or 4, wherein said housing further has outer insulation overlying said covering and extending over the ends of said first and second end housing portions.
6., A housing as claimed in claim 5, wherein said outer insulation is a heat shrink tube of insulating material.
7. A housing as claimed in claim 6, wherein said outer insulation is polyvinyl chloride or polyethylene.
8. A splice connector housing having a central tubular portion of insulating elastomeric material, first and second tubular end portions of conductive elastomeric material and coaxial with the central portion, said central portion having an external surface, said first end portion having an outermost axially extending surface forming an axial continuation of said external surface of said central portion and said second end portion having an outermost axially extending surface spaced inwardly of the envelope of said external surface, said external surface extending axially to overlap said outermost surface of said second end portion around the entire circumference thereof, said central housing portion having an annular skirt part radially defined by said external surface and said outermost surface of said second housing end portion.
9. A splice connector housing substantially as hereinbefore described with reference to the accompanying drawings.
10. A splice connector provided with a housing as claimed in any preceding claim.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US97019078A | 1978-12-18 | 1978-12-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2040112A true GB2040112A (en) | 1980-08-20 |
| GB2040112B GB2040112B (en) | 1983-02-02 |
Family
ID=25516556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7943453A Expired GB2040112B (en) | 1978-12-18 | 1979-12-18 | Splice connector housing with shield break |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5583418A (en) |
| AU (1) | AU5349279A (en) |
| BE (1) | BE880698A (en) |
| BR (1) | BR7908270A (en) |
| CA (1) | CA1117198A (en) |
| DE (1) | DE2951001A1 (en) |
| FR (1) | FR2445049A1 (en) |
| GB (1) | GB2040112B (en) |
| IT (1) | IT1120218B (en) |
| MX (1) | MX147538A (en) |
| NL (1) | NL7909083A (en) |
| SE (1) | SE7910292L (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4855536A (en) * | 1987-10-13 | 1989-08-08 | Alcatel Stk A/S | Power cable having sectionalized screen and method of making same |
| WO2002027885A1 (en) * | 2000-09-28 | 2002-04-04 | Ccs Technology, Inc. | Cable connection |
| US6431783B2 (en) * | 1997-02-27 | 2002-08-13 | Seiko Instruments Inc. | Optical fiber connecting structure and connecting member for connecting an optical fiber cable to a ferrule |
| WO2007074480A1 (en) * | 2005-12-28 | 2007-07-05 | Prysmian Cavi E Sistemi Energia S.R.L. | Joining method and related junction for electric cables, tubular covering sleeve for electric-cable junctions and process for manufacturing the same |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2488068A2 (en) * | 1978-12-18 | 1982-02-05 | Amerace Corp | High voltage cable junction with screening break - uses one-piece part conductive elastomer sleeve to improve current carrying capacity by breaking screen continuity |
| DE3042595C2 (en) * | 1980-11-12 | 1986-01-30 | Felten & Guilleaume Energietechnik GmbH, 5000 Köln | Slide-on connection sleeve with split insulating body for plastic-insulated medium-voltage cables |
| US4555588A (en) * | 1983-10-26 | 1985-11-26 | Rte Corporation | Heat transfer device for electrical connector in insulating housing of high voltage splice or terminator |
| JPH03841Y2 (en) * | 1984-12-31 | 1991-01-11 | ||
| DE3731683C2 (en) * | 1987-09-21 | 1994-02-17 | Felten & Guilleaume Energie | Slide-on sleeve for extra high voltage cables |
| DE19804159B4 (en) * | 1997-01-27 | 2007-04-05 | Nkt Cables Gmbh | Coupling sleeve and method for its production |
| DE19702801C1 (en) * | 1997-01-27 | 1998-05-14 | Felten & Guilleaume Energie | High voltage cable connecting collar with integral field control electrodes |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1784881A (en) * | 1927-05-31 | 1930-12-16 | G And W Electric Specialty Com | Insulating joint |
| FR1260255A (en) * | 1960-05-03 | 1961-05-05 | Pirelli | Method of electrically cutting the sheath of power transport cables using thermosetting synthetic resins as insulating material |
| CH444253A (en) * | 1965-05-17 | 1967-09-30 | Moser Glaser & Co Ag | Coupling for electric, fully insulated high voltage conductors |
| US4034151A (en) * | 1975-05-14 | 1977-07-05 | Amerace Corporation | Splice connector with internal heat transfer jacket |
| JPS5913234B2 (en) * | 1976-09-08 | 1984-03-28 | ブラザー工業株式会社 | Automatic sewing machine control device |
| DE2721566B2 (en) * | 1977-05-13 | 1979-03-15 | Felten & Guilleaume Carlswerk Ag, 5000 Koeln | Plastic-insulated high-voltage cable with a termination or a sleeve |
-
1979
- 1979-12-05 AU AU53492/79A patent/AU5349279A/en not_active Abandoned
- 1979-12-13 MX MX180503A patent/MX147538A/en unknown
- 1979-12-13 SE SE7910292A patent/SE7910292L/en unknown
- 1979-12-14 IT IT51087/79A patent/IT1120218B/en active
- 1979-12-17 NL NL7909083A patent/NL7909083A/en not_active Application Discontinuation
- 1979-12-17 BR BR7908270A patent/BR7908270A/en unknown
- 1979-12-17 CA CA000342017A patent/CA1117198A/en not_active Expired
- 1979-12-18 JP JP16465779A patent/JPS5583418A/en active Pending
- 1979-12-18 DE DE19792951001 patent/DE2951001A1/en active Granted
- 1979-12-18 BE BE0/198628A patent/BE880698A/en not_active IP Right Cessation
- 1979-12-18 GB GB7943453A patent/GB2040112B/en not_active Expired
- 1979-12-18 FR FR7930971A patent/FR2445049A1/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4855536A (en) * | 1987-10-13 | 1989-08-08 | Alcatel Stk A/S | Power cable having sectionalized screen and method of making same |
| US6431783B2 (en) * | 1997-02-27 | 2002-08-13 | Seiko Instruments Inc. | Optical fiber connecting structure and connecting member for connecting an optical fiber cable to a ferrule |
| WO2002027885A1 (en) * | 2000-09-28 | 2002-04-04 | Ccs Technology, Inc. | Cable connection |
| WO2007074480A1 (en) * | 2005-12-28 | 2007-07-05 | Prysmian Cavi E Sistemi Energia S.R.L. | Joining method and related junction for electric cables, tubular covering sleeve for electric-cable junctions and process for manufacturing the same |
| US7872197B2 (en) | 2005-12-28 | 2011-01-18 | Prysmian Cavi E Sistemi Energia S.R.L. | Joining method and related junction for electric cables, tubular covering sleeve for electric-cable junctions and process for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| BE880698A (en) | 1980-04-16 |
| SE7910292L (en) | 1980-06-19 |
| AU5349279A (en) | 1980-06-26 |
| JPS5583418A (en) | 1980-06-23 |
| IT7951087A0 (en) | 1979-12-14 |
| FR2445049A1 (en) | 1980-07-18 |
| BR7908270A (en) | 1980-09-16 |
| DE2951001A1 (en) | 1980-07-03 |
| IT1120218B (en) | 1986-03-19 |
| FR2445049B1 (en) | 1983-11-18 |
| DE2951001C2 (en) | 1989-06-29 |
| CA1117198A (en) | 1982-01-26 |
| MX147538A (en) | 1982-12-13 |
| GB2040112B (en) | 1983-02-02 |
| NL7909083A (en) | 1980-06-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |