CA1262761A - High voltage cable splice protector - Google Patents
High voltage cable splice protectorInfo
- Publication number
- CA1262761A CA1262761A CA000513345A CA513345A CA1262761A CA 1262761 A CA1262761 A CA 1262761A CA 000513345 A CA000513345 A CA 000513345A CA 513345 A CA513345 A CA 513345A CA 1262761 A CA1262761 A CA 1262761A
- Authority
- CA
- Canada
- Prior art keywords
- housing means
- end portion
- plug housing
- receptacle housing
- receptacle
- 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.)
- Expired
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
- H02G15/115—Boxes split perpendicularly to main cable direction
-
- 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
- H02G15/013—Sealing means for cable inlets
Landscapes
- Cable Accessories (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A two piece, plastic, bayonet locking housing for assembly over a high voltage cable splice to protect the splice and exposed concentric neutral wires. End seals are provided at the cable entrances to the housing to prevent the entrance of dirt and moisture and take the form of closely conforming rubber tubes. The rolled tubes are mounted on the slotted cable entrance ends of the housings and held there by the hoop forces of the housing. Radial displacement of the housing ends reduces these hoop forces permitting the tubes to start to unroll and the tubes are fully extended over the housing ends and onto and over a portion of the cables.
A two piece, plastic, bayonet locking housing for assembly over a high voltage cable splice to protect the splice and exposed concentric neutral wires. End seals are provided at the cable entrances to the housing to prevent the entrance of dirt and moisture and take the form of closely conforming rubber tubes. The rolled tubes are mounted on the slotted cable entrance ends of the housings and held there by the hoop forces of the housing. Radial displacement of the housing ends reduces these hoop forces permitting the tubes to start to unroll and the tubes are fully extended over the housing ends and onto and over a portion of the cables.
Description
276~
IG~ VOLTAGE C~BL~ SPLICE PROTECT~
BAC~GR~U~D OF THE I~VENTIO~
F~eld of the Invention High voltage cable is provided ~ith a shield conductor outside of the cable itself to provide a return circuit for load currents and also to maintain the outside sur~ace of the cable at ground potential. This shield conductor often takes the form of a number of wire braids wrapped about the cable jacket and is termed a concentric neutral.
This concentric neutral being outside o~ the normal cable jacket is no-t protected from the environment in which it is buried and is subject to the corrosive effects of water, acids, bases and other chemical substances now regularly found almost everywhere. The destruction ~0 of this concentric neutral removes the return path for the load currents and could cause increasing voltage potentials of the shield and could render any contact with the energized cable dangerous.
The industry has countered the injury to the,concen-tric neutral by placing a jacket over the entire cable concentric neutral and all. ~Iigh voltage cable being heavy and large in size can only be fabricated in relative-ly short lengths. These lengths must be spliced and the ~oints protected so that the cable is protected as well as the fittings.
The invention herein is directed to a housing which can be placed over a high voltage cable splice and sealed ~LZ6~:~6 1 to prevent the entrance o-~ environmental materials into the splice which could attack such splice and the associa-ted cables.
Description o~ the Prior Art U.S. Patent No. 2,978,533 issued December 26, 1957 shows a cable splice enclosure made o~ two rubber portions made to overlap and locked to one ano-ther by means o~
an external hose clamp. Likewise the end seals are accom-plished by hose clamps giving a limited adjustment range.
Exposed metallic hose clamps would have a short use~ul life buried in the ground and could provide electrical ha~ards.
U.S. Patent No. 3,705,950 issued December 12, 1972 makes use oi` a central container screw threaded at both ends. Two conical end portions, one for each end, are screwed onto the central container and have stepped ends to match various diameter cables. Closure is also achieved by means o~ external, metal hose clamps.
The cable connector box shown in U.S. Patent No.
3,818,12~ issued June 18, 1979 makes use o~ a central plastic cylinder with plastic end caps. The ends o~
the caps are stepped -to accommodate di~ierent diame-ter cables. It is assumed that the resiliency o~ the end caps causes it to conform to the central cylinder diameter and the various cable diameters and give tight seals at the interiaces. Such an arrangement is limited in the number o~ steps which the end caps contain and require ~:627~
1 that the caps be forced along the cable during installation making their use more di~ficult.
U.S. Patent No. 3,274,330 issued September 20, 1966 uses a crimpable connector with a depressed central section upon which is placed an insulating sleeve rolled -~rom both ends. Once the two cables are crimped, the sleeve is unrolled. This arrangement is only usable as a part of the splice device itsel~ and not as an insulator and protector o~' a separate and dis-tinct splice member.
In U.S. Patent No. 3,824,331 issued July 16, 1974 an insulation sleeve is provided ior a splice and the exposed cable ends adjacent thereto. The sleeve is rolled ~rom both ends towards the center over a tube holding the sleeve expanded and the ends are positioned in a retainer. After positioning over the crimped splice the expander tube is removed to allow the sleeve to return to its desired size. The tube is unrolled irom both ends and the retainer is broken o~.
SU~lMARY OF THE IN~IENTION
_ The instant invention overcomes the inadequacies and deficiencies of the prior art by providing a high-voltage cable splice protector which is not part of the splice device itself, which can be installed over cables and splice devices having a great range of si%es without special preparation of the cable or splice and which is easy to install without any additional tools and requiring a minimum of skill and experience.
The invention comprehends a cable splice enclosure comprising rigid, hollow receptacle housing means having a first end and a second end, and a rigid, hollow plug housing means having a first end and a second end. The outside and inside diameters of the receptacle housing means and the plug housing means adjacent the first ends are of a first predetermined value and define, respectively, receptacle housing means body portion and plug housing means body portion. The outside and inside diameters of the receptacle housing means and the plug housing means ad~acent the second ends are of a second predetermined value less than the first predetermined value and define, respectively, receptacle housing means end portion and plug housing means end portion. The lengths of the receptacle housing means end portion and 7~
- 5 ~
the plug housing means end portion are short compared to the lengths o~ the receptacle housing means body portion and the plug housing means body portion. Each of the receptacle housing means end portion and the plug housing means end portion have at least ~wo longitudinal slots extending inwardly from the second ends towards the first ends of the respective receptacle housing means and plug housing means for substantially the entire lengths of the receptacle housing means end portion and plug housing means end portion whereby the second predetermined values may be decreased. Bayonet locking means join the first end of the receptacle housing means to the first end of the plug housing means upon relative rotation therebetween. End sealing means, one adjacent each of the second ends of the receptacle housing means and the plug housing means seal the electrical cables entering through the second ends of the receptacle housing means and the plug housing means into the enclosure.
More particularly, the splice protector of the instant invention is made up of two rigid plastic halves arranged to lock with one another by means of a set of bayonet pins upon relative rotation of the halves. An "O"
ring seal prevents dirt, moistue and other environmental contaminants from entering the protector. Adjacent the locking ends and extending for a length in excess of standard splices the protector is maintained at uniform ,j`,.~
- 5a -internal and external diameters and is reduced in internal and external diameters for a relatively short extent adjacent the cable entrances to the protector. A tapered transition region extends between the two. At least two slots extend inwardly from the ends of the cable entrances towards the tapered regions, dividing the cable entrances into at least two segments which are radially displaceable. Mounted atop the cable entrances are rolled tubes which are unrolled over the cable entrances and cables to provide the desired seals.
To use the splice protector oi the lnvention, the respective halves are positioned over the cable ends be~ore the cable ends are spliced. The cable ends and concentric neutral are spliced in their usual manner and the protector halves are moved ~ogether. The halves are rotated so that the bayonet pins on one half ~ngage the correspondi~g, associated slots on the other locking the protector in place. Next, the segments o~ the cable entrance portions are radially displaced to release the rolled tubes and the tubes are rolled out to their ~inal positions. It is an object of this invention to provide a high voltage cable splice protector which is easy to use, quick to install and requires no special tools or operator skill~ or experience.
.~
~;276 Other aspects and features of the invention will be pointed out in the ~ollowing ~escription and claims and illustrated in the accompanying drawings, which disclo-sure, by way of example, the principles of the invention, and the best mode which has been contemplated for carrying it out.
BRIEF D~SC~ PTION OF TEæ DR~ING8 In the drawings in which similar elements are given similar reference characters:
FIG.l is a side elevation of the plug housing member of a high voltage cable splice protector constructed in accordance with the concepts of the invention.
FIG.2 is a slde elevation of the receptacle housing member of a high voltage cable splice protector and which mates with the member of FIG.1.
FIG.3 is a side elevation of the rolled tube for the plug housing member of FIG.1.
FIG.4 is a side elevatlon of the rolled tube for the receptacle housing member of FIG.2.
FIG.5 is a side elevation o~ the protector constructed in accordance with the concepts of the invention installed upon two high voltage cables.
FIG.6 is a reproduction of FIG.5, partially in section, showing the in~er details of the protector.
IG~ VOLTAGE C~BL~ SPLICE PROTECT~
BAC~GR~U~D OF THE I~VENTIO~
F~eld of the Invention High voltage cable is provided ~ith a shield conductor outside of the cable itself to provide a return circuit for load currents and also to maintain the outside sur~ace of the cable at ground potential. This shield conductor often takes the form of a number of wire braids wrapped about the cable jacket and is termed a concentric neutral.
This concentric neutral being outside o~ the normal cable jacket is no-t protected from the environment in which it is buried and is subject to the corrosive effects of water, acids, bases and other chemical substances now regularly found almost everywhere. The destruction ~0 of this concentric neutral removes the return path for the load currents and could cause increasing voltage potentials of the shield and could render any contact with the energized cable dangerous.
The industry has countered the injury to the,concen-tric neutral by placing a jacket over the entire cable concentric neutral and all. ~Iigh voltage cable being heavy and large in size can only be fabricated in relative-ly short lengths. These lengths must be spliced and the ~oints protected so that the cable is protected as well as the fittings.
The invention herein is directed to a housing which can be placed over a high voltage cable splice and sealed ~LZ6~:~6 1 to prevent the entrance o-~ environmental materials into the splice which could attack such splice and the associa-ted cables.
Description o~ the Prior Art U.S. Patent No. 2,978,533 issued December 26, 1957 shows a cable splice enclosure made o~ two rubber portions made to overlap and locked to one ano-ther by means o~
an external hose clamp. Likewise the end seals are accom-plished by hose clamps giving a limited adjustment range.
Exposed metallic hose clamps would have a short use~ul life buried in the ground and could provide electrical ha~ards.
U.S. Patent No. 3,705,950 issued December 12, 1972 makes use oi` a central container screw threaded at both ends. Two conical end portions, one for each end, are screwed onto the central container and have stepped ends to match various diameter cables. Closure is also achieved by means o~ external, metal hose clamps.
The cable connector box shown in U.S. Patent No.
3,818,12~ issued June 18, 1979 makes use o~ a central plastic cylinder with plastic end caps. The ends o~
the caps are stepped -to accommodate di~ierent diame-ter cables. It is assumed that the resiliency o~ the end caps causes it to conform to the central cylinder diameter and the various cable diameters and give tight seals at the interiaces. Such an arrangement is limited in the number o~ steps which the end caps contain and require ~:627~
1 that the caps be forced along the cable during installation making their use more di~ficult.
U.S. Patent No. 3,274,330 issued September 20, 1966 uses a crimpable connector with a depressed central section upon which is placed an insulating sleeve rolled -~rom both ends. Once the two cables are crimped, the sleeve is unrolled. This arrangement is only usable as a part of the splice device itsel~ and not as an insulator and protector o~' a separate and dis-tinct splice member.
In U.S. Patent No. 3,824,331 issued July 16, 1974 an insulation sleeve is provided ior a splice and the exposed cable ends adjacent thereto. The sleeve is rolled ~rom both ends towards the center over a tube holding the sleeve expanded and the ends are positioned in a retainer. After positioning over the crimped splice the expander tube is removed to allow the sleeve to return to its desired size. The tube is unrolled irom both ends and the retainer is broken o~.
SU~lMARY OF THE IN~IENTION
_ The instant invention overcomes the inadequacies and deficiencies of the prior art by providing a high-voltage cable splice protector which is not part of the splice device itself, which can be installed over cables and splice devices having a great range of si%es without special preparation of the cable or splice and which is easy to install without any additional tools and requiring a minimum of skill and experience.
The invention comprehends a cable splice enclosure comprising rigid, hollow receptacle housing means having a first end and a second end, and a rigid, hollow plug housing means having a first end and a second end. The outside and inside diameters of the receptacle housing means and the plug housing means adjacent the first ends are of a first predetermined value and define, respectively, receptacle housing means body portion and plug housing means body portion. The outside and inside diameters of the receptacle housing means and the plug housing means ad~acent the second ends are of a second predetermined value less than the first predetermined value and define, respectively, receptacle housing means end portion and plug housing means end portion. The lengths of the receptacle housing means end portion and 7~
- 5 ~
the plug housing means end portion are short compared to the lengths o~ the receptacle housing means body portion and the plug housing means body portion. Each of the receptacle housing means end portion and the plug housing means end portion have at least ~wo longitudinal slots extending inwardly from the second ends towards the first ends of the respective receptacle housing means and plug housing means for substantially the entire lengths of the receptacle housing means end portion and plug housing means end portion whereby the second predetermined values may be decreased. Bayonet locking means join the first end of the receptacle housing means to the first end of the plug housing means upon relative rotation therebetween. End sealing means, one adjacent each of the second ends of the receptacle housing means and the plug housing means seal the electrical cables entering through the second ends of the receptacle housing means and the plug housing means into the enclosure.
More particularly, the splice protector of the instant invention is made up of two rigid plastic halves arranged to lock with one another by means of a set of bayonet pins upon relative rotation of the halves. An "O"
ring seal prevents dirt, moistue and other environmental contaminants from entering the protector. Adjacent the locking ends and extending for a length in excess of standard splices the protector is maintained at uniform ,j`,.~
- 5a -internal and external diameters and is reduced in internal and external diameters for a relatively short extent adjacent the cable entrances to the protector. A tapered transition region extends between the two. At least two slots extend inwardly from the ends of the cable entrances towards the tapered regions, dividing the cable entrances into at least two segments which are radially displaceable. Mounted atop the cable entrances are rolled tubes which are unrolled over the cable entrances and cables to provide the desired seals.
To use the splice protector oi the lnvention, the respective halves are positioned over the cable ends be~ore the cable ends are spliced. The cable ends and concentric neutral are spliced in their usual manner and the protector halves are moved ~ogether. The halves are rotated so that the bayonet pins on one half ~ngage the correspondi~g, associated slots on the other locking the protector in place. Next, the segments o~ the cable entrance portions are radially displaced to release the rolled tubes and the tubes are rolled out to their ~inal positions. It is an object of this invention to provide a high voltage cable splice protector which is easy to use, quick to install and requires no special tools or operator skill~ or experience.
.~
~;276 Other aspects and features of the invention will be pointed out in the ~ollowing ~escription and claims and illustrated in the accompanying drawings, which disclo-sure, by way of example, the principles of the invention, and the best mode which has been contemplated for carrying it out.
BRIEF D~SC~ PTION OF TEæ DR~ING8 In the drawings in which similar elements are given similar reference characters:
FIG.l is a side elevation of the plug housing member of a high voltage cable splice protector constructed in accordance with the concepts of the invention.
FIG.2 is a slde elevation of the receptacle housing member of a high voltage cable splice protector and which mates with the member of FIG.1.
FIG.3 is a side elevation of the rolled tube for the plug housing member of FIG.1.
FIG.4 is a side elevatlon of the rolled tube for the receptacle housing member of FIG.2.
FIG.5 is a side elevation o~ the protector constructed in accordance with the concepts of the invention installed upon two high voltage cables.
FIG.6 is a reproduction of FIG.5, partially in section, showing the in~er details of the protector.
2 7$~
1 FIG.~ is an end elevation of the cable entrance portion of the plug housing member prior to displacement of the segments.
FIG.8 is an end elevation of the cable entrance portion of the plug housing member a~ter displacement o~ the segments.
DESCRIPTION O~ ~EE PREFERRED E~BODI~ENT
Turning now -to the figures there is shown a high voltage cable splice protector 10 constructed according to the concepts of the invention. Protector 10 is made up of plug housing member or shell 12 and receptacle housing member or shell 14 which may be locked together by means of bayonet locking pins 16 on plug shell 1 and dog-leg slots 18 on receptacle shell 14. Two or more pins 16 may be employed with a corresponding number of dog-leg slots 1~ and the positions of the pins and slots may be interchanged between shells 1~ and 14.
An 1-0l- ring seal 26 is partially compressed when shells 12 and 14 are joined and serves to keep pins 16lagainst the front defining walls of the locking leg slots 22 of the slots 18 and protrusions 2~ keep pins 16 -From entering entrance leg slots 20 of dog-leg slots 18 thereby preventing unwanted separation of the shells 12 and 1~
The "~" rlng seal 2~ is compressed ~urther to clear pins 16 from the walls of lockin~ leg slots 22 and protrusions 24, then either o~ the shells 12, 1~ are turned in the appropriate direction or both shells 12 and 14 are turned ~2~
1 in opposite directions until pins 16 enter the entrance leg slots 20 at which time the 1l0-l rin~ seal 26 expansion assists in separating the shells 12 and 14. Shells 12 and 14 are joined in a manner opposite to that described to separate the shells.
The shells 12 and 14 are fabricated from any rigid or semi-rigid insulating plastic material such as polypro-pylene. The interior diameter will be large enough to accommodate a wide range of splice connectors as well as the connectors for the separately joined concentric neutrals. The shells 12 and 14 have first cylindrical portions or splice ends 28, 30 respectively, of uniform internal and external diameters and of a length of suffi-cient to accommodate a wide range oi splice connectors.
Tapered transi-tion regions 32, 34 respectively, of uniformly decreasing internal and external diame-ters lead from first cylindrical portions 28, 30 to second cylindrical portions or cable entrance ends 36, 38 of the shells 12 and 14 respectively. Second cylindrical portions 36, 38 are similarly of uniform internal and external diameter sufficient to accommodate a wide range of cable diameters such as would be used with -the associated splice connectors.
Second cylindrical portions 36, 38 each have two or more slots 40 extending inwardly from their ~ree edges towards their respective transition regions 32, 34 but stopping short thereof. These slots 40 divide second cylindrical portions or cable entrance ends into two ~z~
1 or more segments 42 as is best seen in FIG. 7. In this condition certain hoop ~orces will b0 exerted upon the end tubes, -to be described below, to hold same in their rolled up condition as shown in FIG. 6.
The application of forces adjacent the slots 40 on the segments 42 at the positions shown by the arrows labeled P in FIG. 8 result in the displacement o~ the segments ~2 inwardly reducing the hoop forces exerted upon the rolled end tubes and permitting same to be more easily unrolled. The release of the hoop forces by the inward displacement of segments 42 initiating the unrolling of the rolled end tubes.
Shell 12 has an external, annular ring 44 adjacent the free end oi' its i'irst cylindrical portion 28 with a shoulder 46 against which "0" ring 26 is retained.
Shell 1~ has an external annular ring 48 adjacent the ~ree end of its first cylindrical portion 30 with an interior shoulder 50 which also engages "0" ring seal 26. The "O" ring seal 26 is compressed between shoulders 46, 50 when shells 12, 14 are joined to provide' a seal against the entrance of dirt, moisture or other environmen-tal contaminants into the splice protector 10. The com-pressed "0" ring seal 26, as stated above, also assists in keeping shells 1~, 14 locked together and in separating them if desired.
The entrances o~ the high voltage cables 52 into the splice protector 10 are sealed and protected by the use of end tubes 5~, 5B mounted, in rolled condition, ~2~
1 respectively, on second cylindrical portions 36, 3~ oL
shells 1~ and 14, respectively. The tubes 54, 56 are made of an elastomeric material of high insulating value and resilience. The -tubes 54, 56 are tightly rolled upon portivns 36, 38 and held out of contact with the cables 52 so that the shells 12, 14 can be positioned and moved upon the cables 52 without interference. The tubes 54, 5ff are held in their positions by the high hoop forces exerted upon them by the cylindrical portions 36, 38 respectively, keeping them stretched. When the segments 42 are inwardly displaced, as above described, the high hoop forces are reduced and the rolled up tubes 54~ 56 start to unroll, an operation completed by the splicer, until the unrolled tubes ~, 56 take the positions shown in FIG. 5 covering the cable 52 ends.
To use protector 10, the high voltage cables 52 are prepared in their usual -fashion. A portion of the jacket 58 is removed to expose the semiconductive shield and the shield conductor 62. Although not visible in FIG. 6 a portion of the shield 60 is removed to expose the insulator and a portion of this removed to expose the central conductor. Plug housing member 12 is slipped over one o~ the cables 52 and moved away from the exposed end. Enclos~lre housing member 14 is then slipped over the other of the cables 52 -to be spliced and similarly moved away from the exposed end. A splice housing 6 of the type shown, described and claimed in U.S. Patent Nos. 4,520,229 issued May 28, 1985 and D278,230 issued 7~;~
1 April 2, 19~5 and assigned to -the assignee of the instant invention is slipped over one o-f the cable52 free ends and moved along the cable shield 60. Finally, -the exposed central conductors (not shown) ar-e inserted into a crimp-able splice connector (not shown) and crimped. The housing64 is now positioned over the crimped splice connector and the two shield conductors 62 are gathered together, twisted and inserted into a crimpable splice connector 66 which is crimped to such conductors ~2.
Shells 12 and 14 are now moved towards one another with the pins 16 entering the slots 20. The shells 12 and 14 are rotated in opposite directions while s-till forced together to compress "0" ring seal 26 until pins 16 enter slots 22. Upon release the pins 1~ engage the walls of the slots ~2 and are held there by the protrusions 24 and the attempted expansion of the "0" ring seal 26.
The segments 42 of second cylindrical portions 36, 38 are inwardly displaced and the tubes 54, 56 unrolled to complete the protector 10 installation in the manner shown in ~IG. ~. , While there have been shown and described and pointed out the fundamental novel :Eea-tures of the inven-tion as applied to the preferred embocliment, it will be understood that various omissions and substitutions and changes of the form and details O:e the device illustrated and in its operation may be made by those skilled in the art, without departing from the spirit of the inven-tion.
1 FIG.~ is an end elevation of the cable entrance portion of the plug housing member prior to displacement of the segments.
FIG.8 is an end elevation of the cable entrance portion of the plug housing member a~ter displacement o~ the segments.
DESCRIPTION O~ ~EE PREFERRED E~BODI~ENT
Turning now -to the figures there is shown a high voltage cable splice protector 10 constructed according to the concepts of the invention. Protector 10 is made up of plug housing member or shell 12 and receptacle housing member or shell 14 which may be locked together by means of bayonet locking pins 16 on plug shell 1 and dog-leg slots 18 on receptacle shell 14. Two or more pins 16 may be employed with a corresponding number of dog-leg slots 1~ and the positions of the pins and slots may be interchanged between shells 1~ and 14.
An 1-0l- ring seal 26 is partially compressed when shells 12 and 14 are joined and serves to keep pins 16lagainst the front defining walls of the locking leg slots 22 of the slots 18 and protrusions 2~ keep pins 16 -From entering entrance leg slots 20 of dog-leg slots 18 thereby preventing unwanted separation of the shells 12 and 1~
The "~" rlng seal 2~ is compressed ~urther to clear pins 16 from the walls of lockin~ leg slots 22 and protrusions 24, then either o~ the shells 12, 1~ are turned in the appropriate direction or both shells 12 and 14 are turned ~2~
1 in opposite directions until pins 16 enter the entrance leg slots 20 at which time the 1l0-l rin~ seal 26 expansion assists in separating the shells 12 and 14. Shells 12 and 14 are joined in a manner opposite to that described to separate the shells.
The shells 12 and 14 are fabricated from any rigid or semi-rigid insulating plastic material such as polypro-pylene. The interior diameter will be large enough to accommodate a wide range of splice connectors as well as the connectors for the separately joined concentric neutrals. The shells 12 and 14 have first cylindrical portions or splice ends 28, 30 respectively, of uniform internal and external diameters and of a length of suffi-cient to accommodate a wide range oi splice connectors.
Tapered transi-tion regions 32, 34 respectively, of uniformly decreasing internal and external diame-ters lead from first cylindrical portions 28, 30 to second cylindrical portions or cable entrance ends 36, 38 of the shells 12 and 14 respectively. Second cylindrical portions 36, 38 are similarly of uniform internal and external diameter sufficient to accommodate a wide range of cable diameters such as would be used with -the associated splice connectors.
Second cylindrical portions 36, 38 each have two or more slots 40 extending inwardly from their ~ree edges towards their respective transition regions 32, 34 but stopping short thereof. These slots 40 divide second cylindrical portions or cable entrance ends into two ~z~
1 or more segments 42 as is best seen in FIG. 7. In this condition certain hoop ~orces will b0 exerted upon the end tubes, -to be described below, to hold same in their rolled up condition as shown in FIG. 6.
The application of forces adjacent the slots 40 on the segments 42 at the positions shown by the arrows labeled P in FIG. 8 result in the displacement o~ the segments ~2 inwardly reducing the hoop forces exerted upon the rolled end tubes and permitting same to be more easily unrolled. The release of the hoop forces by the inward displacement of segments 42 initiating the unrolling of the rolled end tubes.
Shell 12 has an external, annular ring 44 adjacent the free end oi' its i'irst cylindrical portion 28 with a shoulder 46 against which "0" ring 26 is retained.
Shell 1~ has an external annular ring 48 adjacent the ~ree end of its first cylindrical portion 30 with an interior shoulder 50 which also engages "0" ring seal 26. The "O" ring seal 26 is compressed between shoulders 46, 50 when shells 12, 14 are joined to provide' a seal against the entrance of dirt, moisture or other environmen-tal contaminants into the splice protector 10. The com-pressed "0" ring seal 26, as stated above, also assists in keeping shells 1~, 14 locked together and in separating them if desired.
The entrances o~ the high voltage cables 52 into the splice protector 10 are sealed and protected by the use of end tubes 5~, 5B mounted, in rolled condition, ~2~
1 respectively, on second cylindrical portions 36, 3~ oL
shells 1~ and 14, respectively. The tubes 54, 56 are made of an elastomeric material of high insulating value and resilience. The -tubes 54, 56 are tightly rolled upon portivns 36, 38 and held out of contact with the cables 52 so that the shells 12, 14 can be positioned and moved upon the cables 52 without interference. The tubes 54, 5ff are held in their positions by the high hoop forces exerted upon them by the cylindrical portions 36, 38 respectively, keeping them stretched. When the segments 42 are inwardly displaced, as above described, the high hoop forces are reduced and the rolled up tubes 54~ 56 start to unroll, an operation completed by the splicer, until the unrolled tubes ~, 56 take the positions shown in FIG. 5 covering the cable 52 ends.
To use protector 10, the high voltage cables 52 are prepared in their usual -fashion. A portion of the jacket 58 is removed to expose the semiconductive shield and the shield conductor 62. Although not visible in FIG. 6 a portion of the shield 60 is removed to expose the insulator and a portion of this removed to expose the central conductor. Plug housing member 12 is slipped over one o~ the cables 52 and moved away from the exposed end. Enclos~lre housing member 14 is then slipped over the other of the cables 52 -to be spliced and similarly moved away from the exposed end. A splice housing 6 of the type shown, described and claimed in U.S. Patent Nos. 4,520,229 issued May 28, 1985 and D278,230 issued 7~;~
1 April 2, 19~5 and assigned to -the assignee of the instant invention is slipped over one o-f the cable52 free ends and moved along the cable shield 60. Finally, -the exposed central conductors (not shown) ar-e inserted into a crimp-able splice connector (not shown) and crimped. The housing64 is now positioned over the crimped splice connector and the two shield conductors 62 are gathered together, twisted and inserted into a crimpable splice connector 66 which is crimped to such conductors ~2.
Shells 12 and 14 are now moved towards one another with the pins 16 entering the slots 20. The shells 12 and 14 are rotated in opposite directions while s-till forced together to compress "0" ring seal 26 until pins 16 enter slots 22. Upon release the pins 1~ engage the walls of the slots ~2 and are held there by the protrusions 24 and the attempted expansion of the "0" ring seal 26.
The segments 42 of second cylindrical portions 36, 38 are inwardly displaced and the tubes 54, 56 unrolled to complete the protector 10 installation in the manner shown in ~IG. ~. , While there have been shown and described and pointed out the fundamental novel :Eea-tures of the inven-tion as applied to the preferred embocliment, it will be understood that various omissions and substitutions and changes of the form and details O:e the device illustrated and in its operation may be made by those skilled in the art, without departing from the spirit of the inven-tion.
Claims (4)
1. A cable splice enclosure comprising: rigid, hollow receptacle housing means having a first end and a second end; rigid, hollow plug housing means having a first end and a second end; the outside and inside diameters of said receptacle housing means and said plug housing means adjacent said first ends are of a first predetermined value and define, respectively, receptacle housing means body portion and plug housing means body portion; and the outside and inside diameters of said receptacle housing means and said plug housing means adjacent said second ends are of a second predetermined value less than said first predetermined value and define, respectively, receptacle housing means end portion and plug housing means end portion; the lengths of said receptacle housing means end portion and said plug housing means end portion being short compared to the lengths of said receptacle housing means body portion and said plug housing means body portion; each of said receptacle housing means end portion and said plug housing means end portion have at least two longitudinal slots extending inwardly from said second ends towards said first ends of said respective receptacle housing means and plug housing means for substantially the entire lengths of said receptacle housing means end portion and plug housing means end portion whereby said second predetermined values may be decreased; bayonet locking means joining the first end of said receptacle housing means to said first end of said plug housing means upon relative rotation therebetween; and end sealing means, one adjacent each of said second ends of said receptacle housing means and said plug housing means for sealing the electrical cables entering through said second ends of said receptacle housing means and said plug housing means into said enclosure.
2. A cable splice enclosure as defined in Claim 1, wherein each of said end sealing means are rolled lengths of tubing positioned respectively upon said receptacle housing means end portion and said plug housing means end portion.
3. A cable splice enclosure as defined in Claim 2, wherein each of said end sealing means is retained in its rolled condition by the hoop forces in said respective receptacle housing means end portion and said plug housing means end portion and are caused to unroll by the reduction of said hoop forces due to the inward deflection of the segments of said receptacle housing means end portion and said plug housing means end portion between said longitudinal slots.
4. A cable splice enclosure as defined in Claim 1, wherein said receptacle housing means and said plug housing means each have a tapered transition portion between said portions of first and second predetermined diameter values.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/806,591 US4684764A (en) | 1985-12-09 | 1985-12-09 | High voltage cable splice protector |
US06/806,591 | 1985-12-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1262761A true CA1262761A (en) | 1989-11-07 |
Family
ID=25194387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000513345A Expired CA1262761A (en) | 1985-12-09 | 1986-07-08 | High voltage cable splice protector |
Country Status (4)
Country | Link |
---|---|
US (1) | US4684764A (en) |
EP (1) | EP0225784A3 (en) |
JP (1) | JPS62140382A (en) |
CA (1) | CA1262761A (en) |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4820007A (en) * | 1988-02-12 | 1989-04-11 | American Telephone And Telegraph Company At&T Bell Laboratories | Cable closure and methods of assembling |
DE69407682T2 (en) * | 1993-07-30 | 1998-08-06 | Etcon Corp | Protection device for cable splice |
US6069320A (en) * | 1993-07-30 | 2000-05-30 | Etcon Corporation | Cable splice protector |
US5760332A (en) * | 1993-07-30 | 1998-06-02 | Etcon Corporation | Cable splice protector |
DE9417983U1 (en) * | 1994-11-10 | 1994-12-22 | Kabelmetal Electro Gmbh | Arrangement for sealing an annular gap |
FR2769419B1 (en) * | 1997-10-07 | 2003-05-23 | Alsthom Cge Alkatel | WATERPROOF PROTECTION DEVICE FOR A HIGH VOLTAGE CABLE JUNCTION |
TW433526U (en) * | 1999-04-06 | 2001-05-01 | Hon Hai Prec Ind Co Ltd | Fixing and holding apparatus for data access device |
ES2267765T3 (en) * | 2000-04-25 | 2007-03-16 | Prysmian Cavi E Sistemi Energia S.R.L. | PROCEDURE FOR PROTECTING AN ELECTRICAL CABLE EMPALME, PROTECTION COVERING INDICATED TO PRESERVE THE INTEGRITY OF SUCH PUMP, AND AN ELECTRICAL CABLE EMPALME PROTECTED IN THIS FORM. |
GB0010970D0 (en) | 2000-05-05 | 2000-06-28 | Tyco Electronics Raychem Gmbh | Cable enclosure |
US7120347B2 (en) | 2004-01-27 | 2006-10-10 | Corning Cable Systems Llc | Multi-port optical connection terminal |
US7489849B2 (en) | 2004-11-03 | 2009-02-10 | Adc Telecommunications, Inc. | Fiber drop terminal |
US7680388B2 (en) | 2004-11-03 | 2010-03-16 | Adc Telecommunications, Inc. | Methods for configuring and testing fiber drop terminals |
US7349605B2 (en) | 2005-04-19 | 2008-03-25 | Adc Telecommunications, Inc. | Fiber breakout with radio frequency identification device |
US7214095B1 (en) * | 2005-10-19 | 2007-05-08 | John Mezzalingua Associates, Inc. | Sealing security shield |
US7418177B2 (en) | 2005-11-10 | 2008-08-26 | Adc Telecommunications, Inc. | Fiber optic cable breakout system, packaging arrangement, and method of installation |
US7422378B2 (en) | 2006-03-09 | 2008-09-09 | Adc Telecommunications, Inc. | Fiber optic cable breakout configuration with excess fiber length |
US7424189B2 (en) * | 2006-03-09 | 2008-09-09 | Adc Telecommunications, Inc. | Mid-span breakout with potted closure |
US7251411B1 (en) | 2006-03-09 | 2007-07-31 | Adc Telecommunication, Inc. | Fiber optic cable breakout configuration with “Y” block |
US7590321B2 (en) * | 2006-03-09 | 2009-09-15 | Adc Telecommunications, Inc. | Mid-span breakout with helical fiber routing |
US7317863B2 (en) * | 2006-03-09 | 2008-01-08 | Adc Telecommunications, Inc. | Fiber optic cable breakout configuration with retention block |
US7599598B2 (en) * | 2006-08-09 | 2009-10-06 | Adc Telecommunications, Inc. | Cable payout systems and methods |
US7840109B2 (en) * | 2006-08-14 | 2010-11-23 | Adc Telecommunications, Inc. | Factory spliced cable assembly |
WO2008021253A2 (en) * | 2006-08-14 | 2008-02-21 | Adc Telecommunications, Inc. | Factory spliced cable assembly |
US7289714B1 (en) | 2006-09-26 | 2007-10-30 | Adc Telecommunication, Inc. | Tubing wrap procedure |
US7480436B2 (en) * | 2006-10-10 | 2009-01-20 | Adc Telecommunications, Inc. | Systems and methods for securing a tether to a distribution cable |
US7403685B2 (en) * | 2006-10-13 | 2008-07-22 | Adc Telecommunications, Inc. | Overmold zip strip |
US7489843B2 (en) * | 2007-02-06 | 2009-02-10 | Adc Telecommunications, Inc. | Polyurethane to polyethylene adhesion process |
US7558458B2 (en) | 2007-03-08 | 2009-07-07 | Adc Telecommunications, Inc. | Universal bracket for mounting a drop terminal |
US7532799B2 (en) | 2007-04-12 | 2009-05-12 | Adc Telecommunications | Fiber optic telecommunications cable assembly |
US7609925B2 (en) | 2007-04-12 | 2009-10-27 | Adc Telecommunications, Inc. | Fiber optic cable breakout configuration with tensile reinforcement |
US7769261B2 (en) * | 2007-09-05 | 2010-08-03 | Adc Telecommunications, Inc. | Fiber optic distribution cable |
US7740409B2 (en) | 2007-09-19 | 2010-06-22 | Corning Cable Systems Llc | Multi-port optical connection terminal |
US9207421B2 (en) * | 2008-10-14 | 2015-12-08 | Corning Cable Systems Llc | Fiber optic network architecture having optical connection terminals in series arrangement |
GB2478894B (en) * | 2009-01-21 | 2014-03-05 | Farrel Roy Brenner | Improvements in and relating to electrical connector housings |
US20100223785A1 (en) * | 2009-03-05 | 2010-09-09 | Cooper Technologies Company | Method of Using an Observation Port or membrane to Assist the Proper Positioning of a Cable Accessory on a Cable |
US20100224407A1 (en) * | 2009-03-05 | 2010-09-09 | David Charles Hughes | Observation Port or Membrane to Assist the Proper Positioning of a Cable Accessory on a Cable |
CN201700109U (en) * | 2010-04-26 | 2011-01-05 | 鸿富锦精密工业(深圳)有限公司 | Case of outdoor equipment |
US8915659B2 (en) | 2010-05-14 | 2014-12-23 | Adc Telecommunications, Inc. | Splice enclosure arrangement for fiber optic cables |
EP2633354A1 (en) | 2010-10-28 | 2013-09-04 | Corning Cable Systems LLC | Impact resistant fiber optic enclosures and related methods |
US8653368B2 (en) * | 2010-11-02 | 2014-02-18 | Carlisle Interconnect Technologies, Inc. | Electrical wire splice sealing assembly and method |
DE102010043565A1 (en) * | 2010-11-08 | 2012-05-10 | Robert Bosch Gmbh | Fastening device for a conduit and method for attaching a conduit |
US8885998B2 (en) | 2010-12-09 | 2014-11-11 | Adc Telecommunications, Inc. | Splice enclosure arrangement for fiber optic cables |
US9069151B2 (en) | 2011-10-26 | 2015-06-30 | Corning Cable Systems Llc | Composite cable breakout assembly |
US8873926B2 (en) | 2012-04-26 | 2014-10-28 | Corning Cable Systems Llc | Fiber optic enclosures employing clamping assemblies for strain relief of cables, and related assemblies and methods |
CN113594760B (en) * | 2021-08-06 | 2023-07-21 | 东莞市格瑞斯科技有限公司 | Cable connector |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE472618C (en) * | 1927-04-29 | 1929-03-04 | Jaeger Ets Ed | Multiple junction box |
US2978533A (en) * | 1957-12-26 | 1961-04-04 | Robertson Electric Co Inc | Cable splice enclosure |
US3447986A (en) * | 1961-11-25 | 1969-06-03 | Showa Electric Wire & Cable Co | Method of jointing sheaths of aluminum-sheathed cables |
US3321733A (en) * | 1964-04-03 | 1967-05-23 | Amp Inc | High voltage and altitude connector means |
US3274330A (en) * | 1964-04-24 | 1966-09-20 | Fargo Mfg Co Inc | Insulated cable splice |
GB1065431A (en) * | 1964-06-08 | 1967-04-12 | British Insulated Callenders | Improvements in or relating to electric cable joints and terminations |
US3395382A (en) * | 1966-06-06 | 1968-07-30 | Sigma Ind Inc | Re-enterable electrical assembly |
US3673311A (en) * | 1969-10-22 | 1972-06-27 | Joslyn Mfg & Supply Co | Corona free coupling assembly for coaxial cables |
BE759147A (en) * | 1969-11-19 | 1971-04-30 | Anger Kunststoff | SLEEVE FOR CONNECTING ELECTRICAL CABLES |
US3654588A (en) * | 1970-02-05 | 1972-04-04 | Fred N Ruth | Electrical wire connector |
DE2131686C3 (en) * | 1971-06-25 | 1979-04-19 | Thyssen Plastik Anger Kg, 8000 Muenchen | Cable sleeve |
US3824331A (en) * | 1973-06-25 | 1974-07-16 | Amp Inc | Resilient cover having a removable external support member |
JPS5140466U (en) * | 1974-09-13 | 1976-03-25 | ||
US4029895A (en) * | 1976-10-12 | 1977-06-14 | Amp Incorporated | Re-enterable splice case |
JPS53107990U (en) * | 1977-02-07 | 1978-08-30 | ||
JPS53126441A (en) * | 1977-04-13 | 1978-11-04 | Hitachi Ltd | Igniter for three cylinder internal combustion engine |
JPS56133677U (en) * | 1980-03-12 | 1981-10-09 | ||
JPS57108415A (en) * | 1980-12-24 | 1982-07-06 | Nissan Motor Co Ltd | Electricity generation equipment for internal combustion engine |
FR2537797B3 (en) * | 1982-12-13 | 1985-12-06 | Verlant Beaurain | CONNECTION DEVICE BETWEEN AN UNDERGROUND ELECTRICAL NETWORK AND AN AIRLINE |
JPS5996773U (en) * | 1982-12-20 | 1984-06-30 | 鷲野 賢一 | earth cover |
US4520229A (en) * | 1983-01-03 | 1985-05-28 | Amerace Corporation | Splice connector housing and assembly of cables employing same |
DE3329904A1 (en) * | 1983-08-18 | 1985-03-07 | Siemens AG, 1000 Berlin und 8000 München | Cable sleeve for junction and distributor housings |
JPS616273U (en) * | 1984-06-18 | 1986-01-14 | 名伸電機株式会社 | Earth terminal cover |
JPS616272U (en) * | 1984-06-18 | 1986-01-14 | 名伸電機株式会社 | Earth terminal cover |
DE8420905U1 (en) * | 1984-07-06 | 1984-10-25 | Fröhlich, Günther, Dr.med., 5358 Bad Münstereifel | Connector for electrical lines |
-
1985
- 1985-12-09 US US06/806,591 patent/US4684764A/en not_active Expired - Fee Related
-
1986
- 1986-07-08 CA CA000513345A patent/CA1262761A/en not_active Expired
- 1986-11-12 JP JP61269485A patent/JPS62140382A/en active Granted
- 1986-12-04 EP EP86309443A patent/EP0225784A3/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
JPS62140382A (en) | 1987-06-23 |
JPS6346538B2 (en) | 1988-09-16 |
EP0225784A2 (en) | 1987-06-16 |
EP0225784A3 (en) | 1989-06-07 |
US4684764A (en) | 1987-08-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1262761A (en) | High voltage cable splice protector | |
US4755152A (en) | End sealing system for an electrical connection | |
CA2884495C (en) | Elastomeric cable adapters for power transmission cables and cover assemblies and methods including the same | |
US4358634A (en) | Protective cover for use in sealed cable splices | |
US4732628A (en) | Method of sealing and repairing electrical cables | |
AU668521B2 (en) | Enclosure assembly for use over elongate cylindrical objects such as electric cable splices | |
US4666537A (en) | Method of sealing and repairing electrical cables | |
US4714438A (en) | Electric cable joints | |
EP0424090B1 (en) | Elastomeric covering having conformable interior | |
US5374784A (en) | Transition joint for oil-filled cables | |
US3761602A (en) | Method and connector having conductive elastomeric material encircled by a continuous layer of insulation in intimate contact therewith | |
JP2000516020A (en) | Electrical connection device | |
MXPA01010603A (en) | Connector for hard-line coaxial cable. | |
JPH01295614A (en) | Assembly for protection and insulation of connection part of conductor tube | |
EP1279210B1 (en) | Cable enclosure | |
US4238639A (en) | Joint for low and medium voltage electric cables | |
US3725580A (en) | Protective cable splice assembly and method | |
US4717792A (en) | Sealed jointing apparatus | |
US5625167A (en) | Cable seal | |
US5208428A (en) | Splice closures | |
EP0384176B1 (en) | Metallic inner enclosure for an electrical cable connection | |
US4968857A (en) | Submersible splice and splice cover assembly | |
US3842390A (en) | Low cost high voltage connector | |
FI110145B (en) | Device for preventing shrinkage of insulation for power cable with synthetic insulation | |
EP0039161B1 (en) | Multi-core cable connection for medium voltage cable |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKLA | Lapsed |