CN104993435B - Cable branch box wall bushing and its part that is combined through series connection - Google Patents
Cable branch box wall bushing and its part that is combined through series connection Download PDFInfo
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- CN104993435B CN104993435B CN201510371289.2A CN201510371289A CN104993435B CN 104993435 B CN104993435 B CN 104993435B CN 201510371289 A CN201510371289 A CN 201510371289A CN 104993435 B CN104993435 B CN 104993435B
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- shaped
- cable
- connection
- wall bushing
- rigid insulation
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- 238000009413 insulation Methods 0.000 claims abstract description 67
- 239000004020 conductor Substances 0.000 claims abstract description 47
- 241000538562 Banjos Species 0.000 claims abstract description 26
- 239000012212 insulator Substances 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims description 8
- 230000010354 integration Effects 0.000 claims description 7
- 238000003032 molecular docking Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
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Abstract
The invention discloses a kind of cable branch box wall bushing and its part that is combined through series connection, including T-shaped wall bushing, banjo fixing butt jointing and cable connecting terminals, they are will connect the single piece that conductor insulation is closed in rigid insulation body, the connection end for connecting conductor uses screw connection structure, there are arc-chutes the connection end of rigid insulation body, cable connecting terminals are connected to the two ends of T-shaped wall bushing by banjo fixing butt jointing after being connected as one with power outlet cable and by feed cable respectively, banjo fixing butt jointing need to be only rotated during connection.The head outer wall of T-shaped wall bushing rigid insulation body has the mounting ring with mounting hole.The bar portion of T-shaped wall bushing is first integrated before installation fixation through walls on cable branch tank shell with electric power incoming line cable connection, and mechanical stability is strong.The tie point of each connection conductor is in arc-chutes, and staff only contacts insulator when operating, and is capable of achieving powered attended operation, reduces power failure range, improves power supply reliability.
Description
Technical field
The present invention relates to a kind of cable branch box connecting elements, and in particular to a kind of cable branch box wall bushing and its string
Connect sub-assembly.
Background technology
Current European cable branch box using wedge solenoid type wall bushing as connection busbar, American cable branch box with
Screw type wall bushing is used as connection busbar, then realizes cable branch or switching by the connecting elements being connected with wall bushing.
The wall bushing of two kinds of structures is linear structure, and incoming power cable is connected by front connector and conducting rod with wall bushing
Connect, be connected with wall bushing by rear joint and conducting rod by feed cable, then front connector and rear joint pass through transition joint
And conducting rod is connected with other joints, conducting rod is split part with forward and backward joint and transition joint, is existed when being attached following
Defect:Conductive bar part connection and the connection of outer insulations need to be carried out one by one, tedious process, and can cause feed cable
Connection rear stability is poor, must have a power failure when connecting in addition, it is impossible to band electrical connection, influences power supply reliability, causes economic loss.
The content of the invention
Connect by force, respectively it is an object of the invention to provide a kind of electric power incoming line cable and wall bushing integrated machine stability
Head between connection can hot line job sub-assembly, improve processing safety and power supply reliability.
The invention discloses a kind of cable branch box wall bushing and its part that is combined through series connection, including wall bushing, connect
Head and cable connecting terminals, cable connecting terminals are connected to the two ends of wall bushing, cable connecting terminals point by banjo fixing butt jointing
Do not connected as one with power outlet cable and by feed cable.The wall bushing is T-shaped wall bushing, T-shaped wall bushing
Bar portion be integrated with electric power incoming line cable connection;T-shaped wall bushing includes T-shaped connection conductor and it is outside supporting T-shaped hard
The T-shaped body of matter insulator integration, phase of the T-shaped connection conductor with three length in direction no more than T-shaped rigid insulation body
Answer direction length to be embedded in T-shaped rigid insulation body, the butt end of T-shaped rigid insulation body is formed arc-chutes;T-shaped connection conductor
Three connection ends use screw connection structure, the head outer wall of T-shaped rigid insulation body has the mounting ring with mounting hole.
It is interior that the head two ends attachment structure of the T-shaped connection conductor is internal thread hole or external screw thread head or one end
Screwed hole, the other end are external screw thread head, and bar portion attachment structure is internal thread hole.
The head of the T-shaped rigid insulation body is the increase on an equal basis of straight tube or two ends diameter or one end increase, its bar portion
It is straight tube, the aperture for having T-shaped through hole, T-shaped through hole correspondence head tube larger diameter end in T-shaped rigid insulation body accordingly increases, the T
Type connection conductor is flush-mounted in T-shaped through hole, and the bar portion lower end of T-shaped rigid insulation body is cable joining room, and cable connection is matched somebody with somebody in room
There is a stress tube, it is exhausted that the outer wall bottom of correspondence cable joining room has ground lead connecting hole, end to be connected with hard by external screw thread
Edge is covered.
The hole of the external screw thread head diameter less than T-shaped through hole correspondent section in the T-shaped rigid insulation body of the T-shaped connection conductor
Footpath.
The axial centre of the rigid insulation capping has the shoulder hole passed through for electric power incoming line cable, the big footpath of shoulder hole
End inwall has the internal thread supporting with the T-shaped rigid insulation body rod portion end.
The banjo fixing butt jointing includes the rigid insulation body of conduction connector and setting-in conduction connector, and conduction connector is interior
Threaded conductive pipe or the single piece for middle part base segment and two ends external screw thread connector or for middle base segment, one end external screw thread connect
The single piece of head other end internal thread hole, the length of rigid insulation body extend to the end connector of conduction connector two outer face it
Outward, so that conduction connector is hidden in rigid insulation body, it is to avoid human body touches conduction connector when installing or repairing, external screw thread connects
The external diameter of joint less than rigid insulation body respective end internal diameter, the side of external screw thread connector and the medial surface of rigid insulation body it
Between space formed sidepiece arc-chutes, between the outer face of conduction connector and the outer face of rigid insulation body formed end arc extinguishing
Room, the outer wall of rigid insulation body has the spanner position of indent, and the shape of cross section of spanner position is hexagonal prism shape.
The thread rotary orientation at the conduction connector two ends is opposite.
The banded cable electric connection terminal is shaped as T-shaped or L-type, and inner conductor and the outside for being respective shapes be hard
The single piece of matter insulator integration, the connection end of inner conductor is using the threaded connection knot matched with the banjo fixing butt jointing
Structure, the length of external hard plastic insulator is not shorter than the length of inner conductor at least, makes the end shape of external hard plastic insulator head
Into arc-chutes, power outlet cable and the bar portion by feed cable respectively with banded cable electric connection terminal are connected as one.
The docking connection end of the wall bushing, banjo fixing butt jointing and feed cable connection terminal uses preceding corresponding supporting screw rod
Type protection enclosure cover or solenoid type protection enclosure cover, solenoid type and screw type protection enclosure cover are rigid insulation body and are flush-mounted in its axle
To the single piece of the connection conductor at center;The vertical sectional shape of solenoid type protection enclosure cover rigid insulation body for T-shaped, its head and bar
Portion's intersection has axial groove, and connection conductor has the riffled tube of locating ring for outer wall;Screw type protection enclosure cover rigid insulation
The vertical sectional shape of body is U-shaped, and connection conductor is screw rod, and the outer face of screw rod is located in the openend port of rigid insulation body.
The T-shaped rigid insulation body and rigid insulation body are made of porcelain or synthetic material.
T-shaped wall bushing of the invention, banjo fixing butt jointing and cable connecting terminals are and are closed in connection conductor insulation firmly
Single piece in matter insulator, the connection end for connecting conductor uses screw connection structure, cable connecting terminals and cable connection
When need to only be rotatably connected terminal, banjo fixing butt jointing need to be only rotated when cable connecting terminals are connected by butt joint with wall bushing, and
And the rigid insulation body outside connection conductor is only contacted during operation, so can carry out powered attended operation, with operating procedure letter
Single, the safe and efficient and motor-driven flexible advantage of assembling.
T-shaped wall bushing on the cable branch tank shell it is through walls install it is fixed before, be first one with electric power incoming line cable connection
Body, mechanical stability is strong.Leading inside T-shaped wall bushing, banjo fixing butt jointing, T-shaped cable connecting terminals and L-type cable connecting terminals
Body length is respectively less than the length of outside corresponding rigid insulation body, and the butt end of each rigid insulation body forms arc-chutes, makes each conductor
Threaded connection be in arc-chutes, staff only contacts insulating materials when operating, so as to powered attended operation can be realized,
Power failure range is reduced, power supply reliability is improved.
T-shaped wall bushing, banjo fixing butt jointing, T-shaped cable connecting terminals and L-type cable connecting terminals are using preceding, butt end
Closed using protection enclosure cover, while rubber blanket is clogged, so that the conductor of inside keeps cleaning to dry and avoids the connection of conductor
Screw thread is damaged.
In the case of uncharged, first cable core is arranged in T-shaped connection wall bushing by Wiring nose, then will be T-shaped
Connection wall bushing is fixed on the dividing plate of cable branch tank shell, T-shaped cable connecting terminals and L-type cable connecting terminals
First it is integrated with corresponding cable connection respectively.In the case of powered, T-shaped connection wall bushing, T-shaped cable connecting terminals, L
Between type cable connecting terminals, electrically connected by banjo fixing butt jointing band.Banjo fixing butt jointing need to be only rotated during connection, it is simple to operate.Connection
In will not contact electrical body, for it is powered dismounting cable branch box connecting elements safety guarantee is provided.
Brief description of the drawings
Fig. 1 is the configuration schematic diagram of the preferred embodiment of the present invention one.
Fig. 2 is the configuration schematic diagram of the preferred embodiment of the present invention two.
Fig. 3 is the configuration schematic diagram of the preferred embodiment of the present invention three.
Fig. 4 is the mplifying structure schematic diagram of solenoid type protection enclosure cover.
Fig. 5 is the mplifying structure schematic diagram of screw type protection enclosure cover.
Specific embodiment
Preferred embodiment one, as shown in figure 1, present embodiment discloses a kind of cable branch box wall bushing and its concatenation group
Component, including T-shaped wall bushing 1, banjo fixing butt jointing 2, T-shaped cable connecting terminals 3, L-type cable connecting terminals 4 and rubber blanket 5.T
Type wall bushing 1, T-shaped cable connecting terminals 3 and L-type cable connecting terminals 4 are connected as a single entity by banjo fixing butt jointing 2 respectively, mutually
Between clog rubber blanket 5.
T-shaped wall bushing 1 is T-shaped connection conductor 11 and the single piece of T-shaped rigid insulation body 12 integration.T-shaped connection is led
Three connection ends of body 11 are using the attachment structure of internal thread hole.The head and bar portion of T-shaped rigid insulation body 12 are straight tube,
The outer wall of head straight tube has the mounting ring 121 in strap bolt hole.There are T-shaped through hole, T-shaped connection conductor 11 in T-shaped rigid insulation body 12
It is flush-mounted in T-shaped through hole.The lower end of the T-shaped bar portion of rigid insulation body 12 is be furnished with cable joining room 122, cable joining room 122
There is ground connection stress tube 13, the outer wall bottom of correspondence cable joining room 122 for cable joining room 122, correspondence cable joining room 122
Outer wall bottom has 123 holes of ground lead connection, end to be connected with rigid insulation capping 14, rigid insulation capping 14 by external screw thread
The axial centre bigger diameter end inwall that has the shoulder hole passed through for electric power incoming line cable, shoulder hole have and T-shaped rigid insulation body
The supporting internal thread in 12 bar portion ends.
Banjo fixing butt jointing 2 includes the rigid insulation body 22 of conduction connector 21 and setting-in conduction connector 21.Conduction connector
21 is the single piece of middle part base segment and two ends external screw thread connector, and the length of rigid insulation body 22 extends to 21 liang of conduction connector
Hold outside the outer face of external screw thread connector, so that conduction connector 21 is hidden in rigid insulation body 22, it is to avoid install or tie up
Human body touches conduction connector when repairing, and the internal diameter of the external diameter less than the respective end of rigid insulation body 22 of external screw thread connector, external screw thread connects
Space between the side of joint and the medial surface of rigid insulation body 22 forms sidepiece arc-chutes, the outer face of conduction connector 21
End arc-chutes are formed and the outer face of rigid insulation body 22 between, the outer wall of rigid insulation body 22 has the spanner position 23 of indent,
The shape of cross section of spanner position 23 is hexagonal prism shape.
T-shaped cable connecting terminals 3 are the single piece of T-shaped inner conductor 31 and the integration of T-shaped external hard plastic insulator 32, its
Structure is similar to the structure of T-shaped wall bushing 1, and the outer wall of T-shaped external hard plastic insulator 32 is fitted without ring.L-type cable connection
Terminal 4 is the single piece of L-type inner conductor 41 and the integration of L-type external hard plastic insulator 42, with T-shaped cable connecting terminals 3
Difference is both shapes different.
Conductor length inside T-shaped wall bushing, banjo fixing butt jointing, T-shaped cable connecting terminals and L-type cable connecting terminals is equal
Less than the length of external hard plastic insulator, the butt end of each rigid insulation body forms arc-chutes, makes the threaded connection of each conductor equal
In arc-chutes.
T-shaped wall bushing, banjo fixing butt jointing, T-shaped cable connecting terminals and L-type cable connecting terminals are using preceding, butt end
Using screw type or the protection closing of solenoid type protection enclosure cover, while rubber blanket is clogged, so that the conductor of inside keeps cleaning dry
Connection screw thread that is dry and avoiding conductor is damaged.The structure of solenoid type protection enclosure cover is as shown in figure 4, be rigid insulation body and embedding
The single piece of the connection conductor loaded on its axial centre, the vertical sectional shape of rigid insulation body is T-shaped, and its head has a common boundary with bar portion
There is axial groove at place, and connection conductor has the riffled tube of locating ring for outer wall.The structure of screw type protection enclosure cover such as Fig. 5 institutes
Show, the vertical sectional shape of rigid insulation body is U-shaped, and connection conductor is screw rod, and the outer face of screw rod is located at opening for rigid insulation body
In mouth end port.
In the case of uncharged, first cable core is arranged in T-shaped band electrical connection wall bushing by Wiring nose, then will
It is T-shaped to be fixed on the dividing plate of cable branch tank shell with electrical connection wall bushing, T-shaped cable connecting terminals and L-type cable
Connection terminal is first integrated with corresponding cable connection respectively.In the case of powered, T-shaped wall bushing, T-shaped cable connection end
Between son, L-type cable connecting terminals, electrically connected by banjo fixing butt jointing band.Banjo fixing butt jointing need to be only rotated during connection, it is simple to operate.
Electrical body will not be contacted in connection, for powered dismounting cable branch box connecting elements provides safety guarantee.
Preferred embodiment two, as shown in Fig. 2 the present embodiment is with the difference of preferred embodiment one:T-shaped wall bushing 1
Attachment structure with electric conductor butt end in T-shaped cable connecting terminals 3 and T-shaped cable connecting terminals 3 is external screw thread head.Docking
Electric conductor in joint 2 is riffled tube.
Preferred embodiment three, as shown in figure 3, the present embodiment is with the difference of preferred embodiment one:T-shaped wall bushing 1
One end with electric conductor butt end in T-shaped cable connecting terminals 3 is external screw thread head, the other end is internal thread hole.L-type cable connection
Terminal has two kinds of structures, and, with preferred embodiment one, another structure is with preferred embodiment two for a kind of structure.
The operation of preferred embodiment two and preferred embodiment three is with preferred embodiment one.
The present invention can also according to actual needs by T-shaped wall bushing, banjo fixing butt jointing, T-shaped cable connecting terminals, L-type electricity
The different structure of cable connection terminal is combined to form various concatenation components.
Banjo fixing butt jointing, T-shaped and L-type cable connecting terminals our unit have individually carried out patent application.
Claims (9)
1. a kind of cable branch box wall bushing and its part that is combined through series connection, including wall bushing, banjo fixing butt jointing and cable connection end
Son, cable connecting terminals are connected to the two ends of wall bushing by banjo fixing butt jointing, and cable connecting terminals are electric with power outlet respectively
Cable and connected as one by feed cable, it is characterised in that:The wall bushing is T-shaped wall bushing, the bar of T-shaped wall bushing
Portion is integrated with electric power incoming line cable connection;T-shaped wall bushing includes that T-shaped connection conductor and its outside supporting T-shaped hard are exhausted
The T-shaped body of edge body integration, respective party of the T-shaped connection conductor with three length in direction no more than T-shaped rigid insulation body
It is embedded in T-shaped rigid insulation body to length, three connection ends of T-shaped connection conductor use screw connection structure, T-shaped hard
The head outer wall of insulator has the mounting ring with connecting hole.
2. cable branch box wall bushing according to claim 1 and its part that is combined through series connection, it is characterised in that:It is described T-shaped
The head two ends attachment structure for connecting conductor is internal thread hole or external screw thread head or one end for internal thread hole, the other end are
External screw thread head, bar portion attachment structure is internal thread hole.
3. cable branch box wall bushing according to claim 2 and its part that is combined through series connection, it is characterised in that:It is described T-shaped
The head of rigid insulation body is the increase on an equal basis of straight tube or two ends diameter or one end increase, and its bar portion is straight tube, and T-shaped hard is exhausted
The aperture for having T-shaped through hole, T-shaped through hole correspondence head tube larger diameter end in edge body accordingly increases, and the T-shaped connection conductor is flush-mounted in
In T-shaped through hole, the bar portion lower end of T-shaped rigid insulation body is cable joining room, is furnished with stress tube, correspondence cable in cable connection room
The outer wall bottom of junction chamber has ground lead connecting hole, end to be connected with rigid insulation by external screw thread and cover.
4. cable branch box wall bushing according to claim 3 and its part that is combined through series connection, it is characterised in that:It is described T-shaped
Connect the aperture of the external screw thread head diameter less than T-shaped through hole correspondent section in the T-shaped rigid insulation body of conductor.
5. cable branch box wall bushing according to claim 3 and its part that is combined through series connection, it is characterised in that:The hard
The bigger diameter end inwall that the axial centre of insulative cap has the shoulder hole passed through for electric power incoming line cable, shoulder hole has and the T
The supporting internal thread in type rigid insulation body rod portion end.
6. cable branch box wall bushing according to claim 1 and its part that is combined through series connection, it is characterised in that:The docking
Joint includes the rigid insulation body of conduction connector and setting-in conduction connector, and conduction connector is internal thread contact tube or is
The single piece of middle part base segment and two ends external screw thread connector is middle base segment, one end male connection other end internal thread hole
Single piece, the length of rigid insulation body is extended to outside the outer face of the end connector of conduction connector two, so that conduction connector
It is hidden in rigid insulation body, it is to avoid human body touches conduction connector when installing or repairing, and the external diameter of external screw thread connector is less than hard
The internal diameter of matter insulator respective end, the outer wall of rigid insulation body has the spanner position of indent, and the shape of cross section of spanner position is six ribs
The bodily form.
7. cable branch box wall bushing according to claim 6 and its part that is combined through series connection, it is characterised in that:The cable
T-shaped or L-type is shaped as with electric connection terminal, inner conductor and external hard plastic the insulator integration of respective shapes is
Single piece, the connection end of inner conductor is using the screw connection structure matched with the banjo fixing butt jointing, external hard plastic insulation
The length of body is not shorter than the length of inner conductor at least, power outlet cable and by feed cable respectively with banded cable electric connecting terminal
The bar portion of son is connected as one.
8. cable branch box wall bushing according to claim 7 and its part that is combined through series connection, it is characterised in that:The conduction
The thread rotary orientation at connector two ends is opposite.
9. cable branch box wall bushing according to claim 1 and its part that is combined through series connection, it is characterised in that:It is described through walls
The docking connection end of sleeve pipe, banjo fixing butt jointing and feed cable connection terminal uses preceding corresponding supporting screw type protection enclosure cover or spiral shell
Cast protection enclosure cover, solenoid type and screw type protection enclosure cover are rigid insulation body and are flush-mounted in the connection conductor of its axial centre
Single piece;The vertical sectional shape of solenoid type protection enclosure cover rigid insulation body is T-shaped, and its head has axial with bar portion intersection
Groove, connection conductor has the riffled tube of locating ring for outer wall;The vertical sectional shape of screw type protection enclosure cover rigid insulation body is U
Type, connection conductor is screw rod, and the outer face of screw rod is located in the openend port of rigid insulation body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201510371289.2A CN104993435B (en) | 2015-06-30 | 2015-06-30 | Cable branch box wall bushing and its part that is combined through series connection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201510371289.2A CN104993435B (en) | 2015-06-30 | 2015-06-30 | Cable branch box wall bushing and its part that is combined through series connection |
Publications (2)
Publication Number | Publication Date |
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CN104993435A CN104993435A (en) | 2015-10-21 |
CN104993435B true CN104993435B (en) | 2017-06-16 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114640070A (en) * | 2020-12-15 | 2022-06-17 | 北京瑞恒新源投资有限公司 | Closed combined casing |
CN118232122B (en) * | 2024-05-22 | 2024-09-13 | 国网山东省电力公司泗水县供电公司 | Power cable branching device and use method thereof |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2687913Y (en) * | 2004-02-20 | 2005-03-23 | 长沙电缆附件有限公司 | T-shape branch joint for power cable branching |
CN201466245U (en) * | 2009-08-19 | 2010-05-12 | 保定合力达应用化学有限公司 | Cable plug-pull head featuring convenient operation |
CN202940552U (en) * | 2012-05-29 | 2013-05-15 | 裘军良 | Insulation device for cable branch box |
EP2595255A3 (en) * | 2011-11-21 | 2014-12-03 | Sondex Wireline Limited | Flexible sealing connector |
CN204030177U (en) * | 2014-07-04 | 2014-12-17 | 广东安普宏商电气有限公司 | A kind of adjustable contact bus connecting device |
CN204696598U (en) * | 2015-06-30 | 2015-10-07 | 国家电网公司 | Cable branch box wall bushing and the part that is combined through series connection thereof |
-
2015
- 2015-06-30 CN CN201510371289.2A patent/CN104993435B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2687913Y (en) * | 2004-02-20 | 2005-03-23 | 长沙电缆附件有限公司 | T-shape branch joint for power cable branching |
CN201466245U (en) * | 2009-08-19 | 2010-05-12 | 保定合力达应用化学有限公司 | Cable plug-pull head featuring convenient operation |
EP2595255A3 (en) * | 2011-11-21 | 2014-12-03 | Sondex Wireline Limited | Flexible sealing connector |
CN202940552U (en) * | 2012-05-29 | 2013-05-15 | 裘军良 | Insulation device for cable branch box |
CN204030177U (en) * | 2014-07-04 | 2014-12-17 | 广东安普宏商电气有限公司 | A kind of adjustable contact bus connecting device |
CN204696598U (en) * | 2015-06-30 | 2015-10-07 | 国家电网公司 | Cable branch box wall bushing and the part that is combined through series connection thereof |
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Publication number | Publication date |
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CN104993435A (en) | 2015-10-21 |
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