CN106448834A - Fire retardant and crosslinked polyethylene insulated branch cable - Google Patents
Fire retardant and crosslinked polyethylene insulated branch cable Download PDFInfo
- Publication number
- CN106448834A CN106448834A CN201611002790.2A CN201611002790A CN106448834A CN 106448834 A CN106448834 A CN 106448834A CN 201611002790 A CN201611002790 A CN 201611002790A CN 106448834 A CN106448834 A CN 106448834A
- Authority
- CN
- China
- Prior art keywords
- cable
- branch cable
- inner connection
- connection tube
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/009—Cables with built-in connecting points or with predetermined areas for making deviations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
Abstract
The invention relates to a cable, in particular to a fire retardant and crosslinked polyethylene insulated branch cable. The main cable includes a joint. A connecting body is used to connect the main core of conductor of the joint to the core of conductor of the branch cable. The invention also includes an inner connecting pipe and an outer sealing pipe. The two ends of the inner connecting pipe are respectively connected to the outer sheaths at the two ends of the joint of the main cable. The outer sealing pipe includes two main ports and a coated section of pipe in the middle. The coated section of pipe is coated at the outside of the inner connecting pipe. The two main ports are fastened by the clamps in the two ends of the outer sheaths of the joint of the main cable. A sealing thread is set on the contact surface between the main cable and the main ports. The coated section of pipe is provided with a branch pipe, and the branch cable is inserted into the branch pipe. Due to a flexible double connection between the branch and the main cable, the fire retardant and crosslinked polyethylene insulated branch cable has the advantage of effectively improving the branch cable resistance to mechanical impact strength. Meanwhile, the outer sealing pipe which is made of anti-corrosion material has a preservative effect.
Description
Technical field
The present invention relates to a kind of cable, specially fire resistant flame retardant cross-linking polyvinyl insulation branch cable.
Background technology
Pay branch cable in advance to refer to become completely continuous cable assembly by prefabrication, in main cable predetermined portion and its
Require, the conductor of main cable and branch cable is connected by copper or copper alloy tube compression, and carries out complete insulation position
Reason.The insulating materials of branch cable is polyvinyl chloride insulation and crosslinked polyetylene insulated, and sheath material is then polyvinyl chloride shield
Set or polyolefin jacket, product type more has fire-retardant, fire resisting, low smoke and zero halogen.In engineering actual demand, the partly buried or plague of rats
Under critical regions or tunnel, cable duct and other many gravels environment, how to guarantee that paying the normal operation of branch cable in advance has been one
Unavoidable problem.As prevent cable lay or running in, the branch cable junction of branch cable, except pass
Outside the fire resistant requirements of system, the mechanical damage that can suffer from and chemoproection, and bear its work of metal armor layers of certain external force
With can not be ignored.
Content of the invention
For above-mentioned technical problem, a kind of branch cable being difficult mechanical failure and corrosion of offer of the present invention, the present invention
Using technical scheme be：
Fire resistant flame retardant cross-linking polyvinyl insulation branch cable, including leader cable and branch cable, described leader cable has connection
Place, the leading body core of described junction is connected with the conductor cores of branch cable by connector, also includes inner connection tube with outward
Seal pipe, the two ends of described inner connection tube are connected with the junction two ends oversheath of leader cable respectively；
Described outer sealed tube includes two master ports and middle cladding pipeline section, and the caliber of cladding pipeline section is more than the pipe of master port
Footpath, the length of cladding pipeline section is more than the length of inner connection tube, and cladding pipeline section is coated on outside inner connection tube, and two master ports lead to respectively
Cross clip to be fastened on the junction two ends oversheath of leader cable, leader cable has sealing screw thread with the contact surface of master port, sealing
Screw thread is embedded in leader cable oversheath；
Cladding pipeline section is provided with arm, and described branch cable is inserted in arm；
The inwall of described inner connection tube has supporting sleeve, and described supporting sleeve outer wall is corrugated, corresponding inner connection tube
Inwall be also corrugated, the outer wall of supporting sleeve and the inwall of inner connection tube are mutually twisted；Inner connection tube and supporting sleeve phase
Through hole should be had with arm；
It is filled with buffering insulator between described supporting sleeve and connector；
Support is connected with anchor ear.
The fire resistant flame retardant cross-linking polyvinyl insulation branch cable that the present invention provides, is flexible between branch cable and leader cable
Double-deck connection, can effectively improve branch cable mechanical resistant impact strength, the external seal simultaneously made plus anti-corrosion material
Pipe serves antisepsis.
Brief description
Fig. 1 is the part section structural representation of the present invention.
Specific embodiment
The specific embodiment of the present invention is described with reference to the drawings, as shown in figure 1, the crosslinked polyetylene insulated branch of fire resistant flame retardant
Cable, including leader cable 1 and branch cable 6, described leader cable 1 has junction, the leading body core of described junction leads to
The conductor cores crossing connector 10 with branch cable 6 are connected, and also include inner connection tube 2 and outer sealed tube 3, described inner connection tube 2
Two ends be connected with the junction two ends oversheath of leader cable 1 respectively；
Described outer sealed tube 3 includes two master ports and middle cladding pipeline section, and the caliber of cladding pipeline section is more than master port
Caliber, the length of cladding pipeline section is more than the length of inner connection tube 2, and cladding pipeline section is coated on outside inner connection tube 2, and two master ports divide
Tong Guo clip 4 not be fastened on the junction two ends oversheath of leader cable 1, leader cable 1 has sealing spiral shell with the contact surface of master port
Line 8, sealing screw thread 8 is embedded in leader cable 1 oversheath；Improve sealing.
Cladding pipeline section is provided with arm 11, and described branch cable 6 is inserted in arm 11；Branch cable 6 and arm 11
Between be tightly connected.
The inwall of described inner connection tube 2 has supporting sleeve 7, and described supporting sleeve 7 outer wall is corrugated, corresponding interior
The inwall of connecting tube 2 is also corrugated, and the inwall of the outer wall of supporting sleeve 7 and inner connection tube 2 is mutually twisted；In case supporting sleeve
7 slide dislocates.Accordingly and arm 11 has through hole, for through branch cable 6 for inner connection tube 2 and supporting sleeve 7.
It is filled with buffering insulator 9 between described supporting sleeve 7 and connector 10.
Support 5 is connected with anchor ear 4.Support 5 is used for being fixed on this fire resistant flame retardant cross-linking polyvinyl insulation branch cable
In fixing device.
Claims (4)
1. fire resistant flame retardant cross-linking polyvinyl insulation branch cable, including leader cable（1）And branch cable（6）, described leader cable
（1）On have a junction, the leading body core of described junction passes through connector（10）With branch cable（6）Conductor cores connect,
It is characterized in that：Also include inner connection tube（2）And outer sealed tube（3）, described inner connection tube（2）Two ends respectively with leader cable
（1）Junction two ends oversheaths connect；
Described outer sealed tube（3）Including two master ports and middle cladding pipeline section, the caliber of cladding pipeline section is more than master port
Caliber, cladding pipeline section length be more than inner connection tube（2）Length, cladding pipeline section be coated on inner connection tube（2）Outward, two masters
Port passes through clip respectively（4）It is fastened on leader cable（1）Junction two ends oversheath on, leader cable（1）With connecing of master port
Contacting surface has sealing screw thread（8）, seal screw thread（8）It is embedded into leader cable（1）In oversheath；
Cladding pipeline section is provided with arm（11）, described branch cable（6）It is inserted into arm（11）Interior.
2. fire resistant flame retardant cross-linking polyvinyl insulation branch cable according to claim 1 it is characterised in that：Connect in described
Adapter（2）Inwall have supporting sleeve（7）, described supporting sleeve（7）Outer wall is corrugated, corresponding inner connection tube（2）'s
Inwall is also corrugated, supporting sleeve（7）Outer wall and inner connection tube（2）Inwall be mutually twisted；Inner connection tube（2）And support
Sleeve pipe（7）Corresponding and arm（11）Have through hole.
3. fire resistant flame retardant cross-linking polyvinyl insulation branch cable according to claim 2 it is characterised in that：Described support
Sleeve pipe（7）With connector（10）Between be filled with buffering insulator（9）.
4. the fire resistant flame retardant cross-linking polyvinyl insulation branch cable according to any one of Claim 1-3 it is characterised in that：
Anchor ear（4）On be connected with support（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611002790.2A CN106448834A (en) | 2016-11-15 | 2016-11-15 | Fire retardant and crosslinked polyethylene insulated branch cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611002790.2A CN106448834A (en) | 2016-11-15 | 2016-11-15 | Fire retardant and crosslinked polyethylene insulated branch cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106448834A true CN106448834A (en) | 2017-02-22 |
Family
ID=58207106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611002790.2A Pending CN106448834A (en) | 2016-11-15 | 2016-11-15 | Fire retardant and crosslinked polyethylene insulated branch cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106448834A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108109728A (en) * | 2017-12-10 | 2018-06-01 | 长沙无道工业设计有限公司 | A kind of aluminium alloy prefabricated branch cable and preparation method thereof |
| CN109546371A (en) * | 2018-10-24 | 2019-03-29 | 武汉船用机械有限责任公司 | A kind of branch cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29719000U1 (en) * | 1997-10-24 | 1999-02-25 | Leber Hermann | Cable connector and junction box equipped with it |
| CN201134283Y (en) * | 2007-12-27 | 2008-10-15 | 上海胜武电缆有限公司 | Inorganic mineral insulation fire preventing prefabricated branch cable |
| CN204423980U (en) * | 2015-03-24 | 2015-06-24 | 张越 | A kind of cable and T-shaped jockey thereof |
| CN204740878U (en) * | 2015-06-19 | 2015-11-04 | 四川九洲线缆有限责任公司 | Waterproof type is equipped with multicore branch cable subassembly |
| CN105047272A (en) * | 2015-06-01 | 2015-11-11 | 上海众业通电缆有限公司 | Mineral insulated fireproof branch cable with metal sleeves and preparation method of cable |
-
2016
- 2016-11-15 CN CN201611002790.2A patent/CN106448834A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29719000U1 (en) * | 1997-10-24 | 1999-02-25 | Leber Hermann | Cable connector and junction box equipped with it |
| CN201134283Y (en) * | 2007-12-27 | 2008-10-15 | 上海胜武电缆有限公司 | Inorganic mineral insulation fire preventing prefabricated branch cable |
| CN204423980U (en) * | 2015-03-24 | 2015-06-24 | 张越 | A kind of cable and T-shaped jockey thereof |
| CN105047272A (en) * | 2015-06-01 | 2015-11-11 | 上海众业通电缆有限公司 | Mineral insulated fireproof branch cable with metal sleeves and preparation method of cable |
| CN204740878U (en) * | 2015-06-19 | 2015-11-04 | 四川九洲线缆有限责任公司 | Waterproof type is equipped with multicore branch cable subassembly |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108109728A (en) * | 2017-12-10 | 2018-06-01 | 长沙无道工业设计有限公司 | A kind of aluminium alloy prefabricated branch cable and preparation method thereof |
| CN109546371A (en) * | 2018-10-24 | 2019-03-29 | 武汉船用机械有限责任公司 | A kind of branch cable |
| CN109546371B (en) * | 2018-10-24 | 2020-10-27 | 武汉船用机械有限责任公司 | Branch cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
|
| WD01 | Invention patent application deemed withdrawn after publication |