CN109994275A - Low-smoke halogen-free cable convenient to overhaul - Google Patents
Low-smoke halogen-free cable convenient to overhaul Download PDFInfo
- Publication number
- CN109994275A CN109994275A CN201910234328.2A CN201910234328A CN109994275A CN 109994275 A CN109994275 A CN 109994275A CN 201910234328 A CN201910234328 A CN 201910234328A CN 109994275 A CN109994275 A CN 109994275A
- Authority
- CN
- China
- Prior art keywords
- protective case
- low
- smoke halogen
- outside
- insulation sleeve
- 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.)
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Classifications
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- 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
-
- 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
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/328—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising violation sensing means
-
- 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
- H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
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- Insulated Conductors (AREA)
Abstract
The present invention relates to a kind of low-smoke halogen-free cables convenient to overhaul, it includes conductor, the insulating layer being sheathed on the outside of conductor and the protective layer on the outside of insulating layer, the protective layer includes the first protective case being sheathed on the outside of insulating layer and the second protective case being sheathed on the outside of the first protective case, first protective case is fluorescent tube, fluorescent tube is equipped with multiple negative tubes, multiple negative tubes are offered on the negative tube, baroceptor is equipped in the negative tube, fluorescent tube is multiple in closed loop and the coils that are electrically connected with negative tube along being uniformly placed on the length direction of fluorescent tube, light emitting diode is connected on the coil, the light emitting diode and baroceptor coupled in series, multiple capillaries being connected to adjacent negative tube are offered on the fluorescent tube, the lateral wall of the inner sidewall and the first protective case of second protective case is tight Patch.The present invention has the effect of conveniently overhauling cable.
Description
Technical field
The present invention relates to the technical fields of low-smoke halogen-free cable, more particularly, to a kind of low smoke and zero halogen electricity convenient to overhaul
Cable.
Background technique
Exhaust smoke level thermoplasticity or thermosetting property group low, and be halogen-free in itself when low smoke no-halogen wire sheath is by being heated
At.
Low smoke and zero halogen material can reduce toxic, the corrosive gas generated in its burning.If as aircraft, railway carriage
Or in the environment of the improper ventilations such as ship, the material of low smoke and zero halogen is often used.It is also generally used in railway industry
Low smoke and zero halogen material, because having high-tension line below railway or transmitting the signal wire of train location.Use low smoke and zero halogen
Material also reduces route because catching fire or when short circuit is impaired, the toxic gas added up.
In existing technology, the Authorization Notice No. that can refer to is the Chinese patent of CN105976914B, and it discloses one kind
Low-smoke halogen-free inflaming-retarding cable, including core wrap up the filled layer of the core, the wrapping layer outside the filled layer, squeeze
Wrap the inner sheath outside the wrapping layer, the aluminium sheath being extruded in outside the inner sheath, the outer shield being extruded in outside the aluminium sheath
Set；The core is by conductor, lapped shielding layer outside the conductor, the insulation being extruded in outside the lapped shielding layer
Layer, the shielded layer composition outside the insulating layer.
Prior art among the above has the following deficiencies: in the prior art by using novel rubber material to mention
The high good fire retardant property of cable, and current low-smoke halogen-free cable is during use, if its external protection
Layer ruptures, and will lead to can not protect the insulating layer on the outside of conductor, and being possible to the insulating layer at this in this way can make
With being damaged in the process, and cause to leak electricity and cause danger at this, and the length of general cable is longer, on the outside of cable
The inspection of protective layer is time-consuming and laborious, so how exactly one, which needs to solve, more efficiently to be checked to the crack on cable
The problem of.
Summary of the invention
The object of the present invention is to provide the low-smoke halogen-free cables that a kind of convenience overhauls cable.
Foregoing invention purpose of the invention has the technical scheme that
A kind of low-smoke halogen-free cable convenient to overhaul including conductor, the insulating layer being sheathed on the outside of conductor and is set to outside insulating layer
The protective layer of side, the protective layer include the first protective case being sheathed on the outside of insulating layer and are sheathed on the outside of the first protective case
Second protective case, first protective case are fluorescent tube, and fluorescent tube is equipped with multiple negative tubes, offers on the negative tube more
A negative tube, the negative tube is interior to be equipped with baroceptor, and the baroceptor is equipped with the output height electricity when air pressure increases
The measuring circuit of ordinary mail number, fluorescent tube are in closed loop and and negative tube along being uniformly placed on the length direction of fluorescent tube multiple
The coil of electrical connection is connected with light emitting diode, the light emitting diode and baroceptor coupled in series, institute on the coil
It states and is electrically connected with comparator on baroceptor, multiple capillarys being connected to adjacent negative tube are offered on the fluorescent tube
Pipe, the inner sidewall of second protective case are close to the lateral wall of the first protective case.
By using above-mentioned technical proposal, Electricity Federation during use, when cable is powered, effect of the coil in conductor
Lower generation self inductance current, if the second protective case of outer layer will lead to first because when abrasion, collision, scuffing etc. generate gap
Protective case is located at the capillary contact at gap to extraneous air, and air enters adjacent negative tube by multiple capillaries
Interior, air pressure in such negative tube increases, and such baroceptor senses after air pressure increases after the measuring circuit of itself
High level signal is exported, such light emitting diode obtains electric and starts to shine, and staff can be relatively more square according to luminous position
Just the position in crack is found to which fracture is repaired, it is more convenient.
The present invention is further arranged to: the conductor share it is multiple, the insulating layer include be sheathed on multiple conductors respectively
On the first insulation sleeve and the second insulation sleeve for being sheathed on the outside of multiple first insulation sleeves, first insulation sleeve be the poly- second that insulate
Alkene low-smoke halogen-free cable.
By using above-mentioned technical proposal, conductor is improved by being arranged the first insulation sleeve and the second insulation sleeve outside conductor
Insulation degree, the first insulation sleeve is made of low cigarette polyethylene material to guarantee that cable will not generate cigarette when burning because of short circuit
Mist and pernicious gas, it is more environmentally-friendly.
The present invention is further arranged to: the outside of each first insulation sleeve is arranged with heat-insulating flame-retardant jacket.
By using above-mentioned technical proposal, by the way that heat-insulating flame-retardant band is arranged to prevent cable in the outside of the first insulation sleeve
Inside burning.
The present invention is further arranged to: the two sides of the negative tube are the wave expanded from the middle part of negative tube to two sides
Shape wave.
By using above-mentioned technical proposal, negative tube is designed into waviness to improve the closure of negative tube, is prevented outer
The air on boundary enters directly into the inside of negative tube.
The present invention is further arranged to: the coil is twist distributed in fluorescent tube.
Coil is improved by the way that coil design waviness to be improved to the number of turns of coil by using above-mentioned technical proposal
Current strength.
The present invention is further arranged to: second insulation sleeve is made of cross-linking radiation polyolefine material.
By using above-mentioned technical proposal, to carry out conductor by using cross-linking radiation polyolefine material further exhausted
Edge, and crosslinked polyolefin materials are come good, the good environmental protection that improves cable strength, and are completing it by irradiation technique
Afterwards, the tensile property of cable is higher, more stable.
The present invention is further arranged to: second protective case is made of transparent PVC material.
By using above-mentioned technical proposal, by the way that the second protective case is made into transparent material, in this way when the second protective case
When occurring gap on side wall, light emitting diode illuminate place it is more obvious, staff find when it is more convenient.
The present invention is further arranged to: poly- filled with low-smoke non-halogen flame-retardant between second insulation sleeve and the first insulation sleeve
Alkene filler material.
By using above-mentioned technical proposal, by filler material being arranged between the second insulation sleeve and the first insulation sleeve come to leading
The position of body is fixed, and prevents multiple conductor wringings together, and filler material is fire proofing to prevent cable fire.
In conclusion advantageous effects of the invention are as follows:
1. multiple coils are arranged by the way that fluorescent tube is arranged in the outside of insulating layer in the present invention in fluorescent tube, on fluorescent tube
The baroceptor that setting is connected with coil in negative tube and negative tube is set, baroceptor series connection light emitting diode,
When second protective case generates crack, the variation of air pressure can be generated at this and lights light emitting diode, staff can compare
It is able to conveniently find position and is overhauled；
2. the present invention enhances the insulation performance of conductor, and the first insulation sleeve by the first insulation sleeve of setting and the second insulation sleeve
For low-smoke halogen-free cable come guarantee cable burning when will not generate smog and pernicious gas, it is more environmentally friendly；
3. the present invention by the way that waviness is arranged to improve the closure of negative tube in negative tube, prevent extraneous air directly into
Enter the inside to negative tube.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is cable schematic cross-sectional view of the present invention.
Fig. 3 is the portion A enlarged drawing in Fig. 2.
Fig. 4 is that cable of the present invention goes the second protective cover structure diagram.
Fig. 5 is the structural schematic diagram of present invention deprotection layer and the second insulation sleeve.
In figure, 1, conductor；2, insulating layer；21, the first insulation sleeve；22, the second insulation sleeve；23, heat-insulating flame-retardant jacket；3, it protects
Sheath；31, the first protective case；311, negative tube；312, coil；313, baroceptor；314, light emitting diode；32, second
Protective case.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
As shown in Figure 1, the low-smoke halogen-free cable convenient to overhaul for one kind disclosed by the invention, including conductor 1, insulating layer 2
With protective layer 3.It there are three conductor 1 is total and is arranged side by side, insulating layer 2 includes three the first insulation sleeves 21 and one second insulation
Set 22, the first insulation sleeve 21 and the second insulation sleeve 22 are low-smoke halogen-free cable, and three the first insulation sleeves 21 are respectively sleeved at three
On a conductor 1, the first insulation sleeve 21 is made of insulation polyethylene low smoke and zero halogen material, the outer sheath of the first insulation sleeve 21 be equipped with every
Thermal resistance fires jacket 23.
Improve the insulation degree of conductor 1 by being arranged the first insulation sleeve 21 and the second insulation sleeve 22 outside conductor 1, first
Insulation sleeve 21 is made to guarantee that cable will not generate smog when burning because of short circuit of low cigarette polyethylene material, more environmentally-friendly.
By the way that heat-insulating flame-retardant band is arranged to prevent the inside of cable from burning in the outside of the first insulation sleeve 21.
Second insulation sleeve 22 is sheathed on the outside of three heat-insulating flame-retardant jackets 23, and the second insulation sleeve 22 is by cross-linking radiation polyene
Hydrocarbon material is made, and cross-linking radiation polyolefine material has good intensity and tensile property, and due to not containing halogen, is firing
Toxic gas will not be generated when burning, it is more environmentally friendly.Filled with low between second insulation sleeve 22 and three heat-insulating flame-retardant jackets 23
Cigarette halogen-free anti-flaming polyolefin filler material, and then the position of conductor 1 is fixed, prevent multiple 1 wringings of conductor together, and
Filler material is fire proofing to prevent cable fire, and the filler material is low smoke and zero halogen material, more environmentally friendly.
As shown in Figures 2 and 3, protective layer 3 includes the first protective case 31 and the second protective case 32, and the first protective case 31 is arranged
In on the second insulation sleeve 22, the second protective case 32 is sheathed on the first protective case 31 and on the inside of it and outside the first protective case 31
Side wall fits closely, and the first protective case 31 is fluorescent tube, and fluorescent tube is made of clear material and it is filled with pigment, pigment
It can be the obvious color such as red, green, yellow.
In conjunction with Fig. 4, offer multiple rows of negative tube 311 on the lateral wall in the first protective case 31, multiple rows of negative tube 311 along
The outer ring surface direction of first protective case 31 is uniformly distributed, and every row's negative tube 311 has length multiple and along the first protective case 31
Degree direction is uniformly distributed, and negative tube 311 is arranged radially along the first protective case 31, and the two sides of negative tube 311 are
The waveform expanded from the middle part of negative tube 311 to two sides.
As shown in Figure 3 and Figure 5, the inside of the first protective case 31 is equipped with multiple coils 312, and coil 312 is along the first protection
The length direction of set 31 is uniformly distributed, and coil 312 twist and with the first protective case 31 is coaxially disposed, and each coil
312 it is end to end, light emitting diode 314 is serially connected on each coil 312, the bottom of each negative tube 311 is equipped with gas
Pressure sensor 313, and baroceptor 313 and 314 coupled in series of light emitting diode offer multiple capillarys on fluorescent tube
Pipe, and each capillary is interconnected with adjacent negative tube 311.
During use, when cable is powered, coil 312 generates self inductance current under the action of conductor 1 to cable, such as
Second protective layer 3 of fruit outer layer will lead to the first protective layer 3 and be located at gap because when abrasion, collision, scuffing etc. generate gap
Capillary contact to extraneous air, air is entered by multiple capillaries in adjacent negative tube 311, such negative tube
Air pressure in 311 increases, and such baroceptor 313 senses exports high electricity after air pressure increases after the measuring circuit of itself
Ordinary mail number, such light emitting diode 314 obtain electric and start to shine, and staff can more easily look for according to luminous position
It is repaired to the position in crack to fracture, it is more convenient.
Negative tube 311 is designed into waviness to improve the closure of negative tube 311, extraneous air is prevented to be directly entered
To the inside of negative tube 311.By the way that coil 312 is designed waviness to improve the number of turns of coil 312, coil 312 is improved
Current strength.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of low-smoke halogen-free cable convenient to overhaul, including conductor (1), the insulating layer (2) being sheathed on the outside of conductor (1) and sets
Protective layer (3) on the outside of insulating layer (2), it is characterised in that: the protective layer (3) includes being sheathed on the outside of insulating layer (2)
First protective case (31) and the second protective case (32) being sheathed on the outside of the first protective case (31), first protective case (31) are
Fluorescent tube, fluorescent tube are equipped with multiple negative tubes (311), offer multiple negative tubes (311), institute on the negative tube (311)
It states in negative tube (311) and is equipped with baroceptor (313), the baroceptor (313) is equipped with to be exported when air pressure increases
The measuring circuit of high level signal, fluorescent tube are in closed loop and and negative pressure along being uniformly placed on the length direction of fluorescent tube multiple
The coil (312) of (311) electrical connection, the light emitting diode (314) and baroceptor (313) coupled in series are managed, it is described glimmering
Offer multiple capillaries being connected to adjacent negative tube (311) on light pipe, the inner sidewall of second protective case (32) with
The lateral wall of first protective case (31) is close to.
2. low-smoke halogen-free cable convenient to overhaul according to claim 1, it is characterised in that: the conductor (1) is shared more
A, the insulating layer (2) includes the first insulation sleeve (21) being sheathed on multiple conductors (1) respectively and is sheathed on multiple first absolutely
The second insulation sleeve (22) on the outside of edge set (21), first insulation sleeve (21) are insulation polyethylene low-smoke halogen-free cable.
3. low-smoke halogen-free cable convenient to overhaul according to claim 1, it is characterised in that: each first insulation sleeve
(21) outside is arranged with heat-insulating flame-retardant jacket (23).
4. low-smoke halogen-free cable convenient to overhaul according to claim 1, it is characterised in that: the negative tube (311)
Two sides are the waveform expanded from the middle part of negative tube (311) to two sides.
5. low-smoke halogen-free cable convenient to overhaul according to claim 1, it is characterised in that: the coil (312) is glimmering
It is twist distributed in light pipe.
6. low-smoke halogen-free cable convenient to overhaul according to claim 1, it is characterised in that: second insulation sleeve (22)
It is made of cross-linking radiation polyolefine material.
7. low-smoke halogen-free cable convenient to overhaul according to claim 1, it is characterised in that: second protective case (32)
It is made of transparent PVC material.
8. low-smoke halogen-free cable convenient to overhaul according to claim 1, it is characterised in that: second insulation sleeve (22)
Low smoke halogen-free flame-retardant polyolefin filler material is filled between the first insulation sleeve (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910234328.2A CN109994275B (en) | 2019-03-26 | 2019-03-26 | Low-smoke halogen-free cable convenient to overhaul |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910234328.2A CN109994275B (en) | 2019-03-26 | 2019-03-26 | Low-smoke halogen-free cable convenient to overhaul |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109994275A true CN109994275A (en) | 2019-07-09 |
| CN109994275B CN109994275B (en) | 2020-08-07 |
Family
ID=67131666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910234328.2A Expired - Fee Related CN109994275B (en) | 2019-03-26 | 2019-03-26 | Low-smoke halogen-free cable convenient to overhaul |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109994275B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164503A (en) * | 2020-09-01 | 2021-01-01 | 江苏恒辉电气有限公司 | High-performance environment-friendly direct-current traction cable for rail transit vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3874237A (en) * | 1973-02-15 | 1975-04-01 | Canadian Patents Dev | Liquid level height measuring apparatus |
| CN2773649Y (en) * | 2004-12-27 | 2006-04-19 | 首安工业消防股份有限公司 | Multiple-alarm linear temperature-sensing fire detector |
| CN204808931U (en) * | 2015-05-15 | 2015-11-25 | 重庆市亚通电线电缆有限公司 | Novel automotive wires |
| CN205487496U (en) * | 2016-01-25 | 2016-08-17 | 远东电缆有限公司 | Fire -retardant flexible cable of wisdom energy wind power tower cylinder interior illumination environmental protection |
| US20180080971A1 (en) * | 2016-09-16 | 2018-03-22 | Tecnikabel S.P.A. | Monitoring and alert system for industrial cables |
-
2019
- 2019-03-26 CN CN201910234328.2A patent/CN109994275B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3874237A (en) * | 1973-02-15 | 1975-04-01 | Canadian Patents Dev | Liquid level height measuring apparatus |
| CN2773649Y (en) * | 2004-12-27 | 2006-04-19 | 首安工业消防股份有限公司 | Multiple-alarm linear temperature-sensing fire detector |
| CN204808931U (en) * | 2015-05-15 | 2015-11-25 | 重庆市亚通电线电缆有限公司 | Novel automotive wires |
| CN205487496U (en) * | 2016-01-25 | 2016-08-17 | 远东电缆有限公司 | Fire -retardant flexible cable of wisdom energy wind power tower cylinder interior illumination environmental protection |
| US20180080971A1 (en) * | 2016-09-16 | 2018-03-22 | Tecnikabel S.P.A. | Monitoring and alert system for industrial cables |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164503A (en) * | 2020-09-01 | 2021-01-01 | 江苏恒辉电气有限公司 | High-performance environment-friendly direct-current traction cable for rail transit vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109994275B (en) | 2020-08-07 |
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Granted publication date: 20200807 |