CN110504055A - A kind of signal cable with dampness warning function - Google Patents
A kind of signal cable with dampness warning function Download PDFInfo
- Publication number
- CN110504055A CN110504055A CN201910881457.0A CN201910881457A CN110504055A CN 110504055 A CN110504055 A CN 110504055A CN 201910881457 A CN201910881457 A CN 201910881457A CN 110504055 A CN110504055 A CN 110504055A
- Authority
- CN
- China
- Prior art keywords
- dampness
- warning
- cable
- sheath
- signal cable
- 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
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
-
- 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
- H01B7/02—Disposition of insulation
-
- 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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
-
- 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
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
-
- 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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- 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
- H01B7/322—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising humidity sensing means
Landscapes
- Insulated Conductors (AREA)
Abstract
The present invention relates to a kind of signal cables with dampness warning function.The cable core that it includes cable cover(ing), is coated in the cable cover(ing), it is characterized by also including warning devices, dampness alarming line pair is provided in the cable cover(ing), the dampness alarming line is twisted to by two warning wires, the conductor thread core that the warning wire includes N-type polyethylene foams sheath, is coated in the N-type polyethylene foams sheath passes through warning device between the conductor thread core of two warning wires and connects.The present invention is using two mutually twisted warning wires as dampness sensing element, using insulating in N-type polyethylene foams sheath dry environment, conductive characteristic in wet environment, whether make moist inside detection signal cable, and can and alarm, it realizes the dampness automatic detection warning function in signal cable, is not necessarily to artificial detection, ensure that the stable and safe of signal cable.
Description
Technical field
The present invention relates to a kind of railway signal cables, and in particular to a kind of signal cable with dampness warning function.
Background technique
Signal cable is primarily used to the transmission medium as Train Control signal, high-quality not will have a direct impact on train
Operational safety, any point among the both ends poor sealing or cable of signal cable is damaged, and moisture will enter
Inside cable, it is gradually reduced the insulation resistance of signal cable, the malfunction of signalling arrangement will be caused for a long time.State at present
The signal cable inside used all without warning device, periodically carries out test lookup to insulated cable by line attendant entirely, this
Kind method needs to test the connector box disconnection of cable ends, more troublesome, therefore, often just surveys at regular intervals
Examination is primary, is not easy to find in time after there is hysteresis quality, moisture to enter.
Summary of the invention
In order to solve the problems in the prior art, the purpose of the present invention is to provide a kind of signal electricity with dampness warning function
Cable.
The specific technical solution of the present invention is as follows:
A kind of signal cable with dampness warning function, including cable cover(ing), the cable being coated in the cable cover(ing)
Core, it is characterised in that: further include warning device, dampness alarming line pair, the dampness alarming line are provided in the cable cover(ing)
It is twisted to by two warning wires, the warning wire includes N-type polyethylene foams sheath, is coated on the N-type
Conductor thread core in polyethylene foams sheath passes through warning device between the conductor thread core of two warning wires and connects
It connects；
Further, the N-type polyethylene foams sheath is made using chemical blowing process, and the foaming agent used is N-
Dimethyl N or N- dinitrosoterephthalamine；
Further, the foam degrees of the N-type polyethylene foams sheath are 65%；
Further, the pipe thickness of the N-type polyethylene foams sheath is 0.3mm-0.4mm；
Further, the conductor thread core is copper conductor, which is 0.5mm-1.0mm；
Further, the warning device is formed by connecting by alarm and power supply；
Further, the cable cover(ing) includes the cable core band, moistureproof shield layer, inner sheath, plating set gradually from inside to outside
Zinc steel band, DWZR oversheath.
The invention has the following advantages:
The present invention, as dampness sensing element, is protected using two mutually twisted warning wires using N-type polyethylene foams
Set dry environment in insulate, conductive characteristic in wet environment, detect signal cable inside whether make moist, and can and Times
It is alert, it realizes the dampness automatic detection warning function in signal cable, is not necessarily to artificial detection, ensure that the stable of signal cable
And safety.
Detailed description of the invention
Fig. 1 is the cross-sectional view of signal cable of the invention；
Fig. 2 is the cross-sectional view of warning wire of the invention；
Fig. 3 is the connection schematic diagram of warning wire and warning device of the invention.
Specific embodiment
A kind of signal cable with dampness warning function as shown in Figure 1 to Figure 3, including cable cover(ing) 1, it is coated on institute
The cable core 2 in cable cover(ing) 1 is stated, further includes warning device 3, dampness alarming line is provided in the cable cover(ing) 1 to 4,
The dampness alarming line is twisted to 4 by two warning wire 4-1, and the warning wire 4-1 includes the modeling of N-type polyethylene
Expect sheath 4-2, the conductor thread core 4-3 being coated in the N-type polyethylene foams sheath 4-2, two warning wires
It is connected between the conductor thread core 4-3 of 4-1 by warning device 3.The warning device 3 connected by alarm 3-1 with power supply 3-2 and
At；The cable cover(ing) 1 includes the cable core band 1-1 set gradually from inside to outside, moistureproof shield layer 1-2, inner sheath 1-3, plating
Zinc steel band 1-4, DWZR oversheath 1-5.
Specific work process of the invention is as follows:
Of the invention uses N-type polyethylene foams sheath 4-2 based on polyvinyl resin, and N-dimethyl N or N- is added
Dinitrosoterephthalamine's foaming agent, foamable are made, N-type polyethylene foams sheath 4-2 have foam degrees it is high,
The characteristics of insulative dielectric constant is small greatly, after foaming for abscess, interconnected between abscess, the easy moisture absorption, is moulded using N-type polyethylene
Expect insulating sheath of the sheath 4-2 as warning wire 4-1, in the dry state, resistance reaches two warning wire 4-1
3000MΩ·km；After watered and wetting in cable cover(ing) 1, moisture may pass through the bubble on N-type polyethylene foams sheath 4-2
Hole enters conductor thread core 4-3, and the insulation resistance between two warning wire 4-1 is dropped rapidly to zero at this time, two conductor thread cores
4-3 connection, power supply 3-2 power supply make alarm 3-1 alarm, inform staff's signal cable internal wetted.
The foam degrees of N-type polyethylene foams sheath 4-2 of the invention are 65%, if foam degrees are too low, are not likely to produce phase
The blasthole mutually penetrated through, moisture not easily pass through, if foam degrees are too high, the too low cracky of sheath intensity；N-type polyethylene foams
The pipe thickness of sheath 4-2 is 0.3mm-0.4mm, can guarantee that drying regime lower jacket has good insulating properties；Conductor lines
Core 4-3 is copper conductor, and conductor thread core 4-3 diameter is 0.5mm-1.0mm, ensure that conductor thread core 4-3 has good conduction
Property；Cable cover(ing) 1 uses cable core band 1-1, moistureproof shield layer 1-2, inner sheath 1-3, galvanized steel strip 1-4, DWZR oversheath 1-5
Structure so that cable cover(ing) 1 has good intensity, toughness, moisture resistance and an anti-flammability simultaneously.
Claims (7)
1. a kind of signal cable with dampness warning function, including cable cover(ing) (1), it is coated in the cable cover(ing) (1)
Cable core (2), it is characterised in that: further include warning device (3), be provided with dampness alarming line in the cable cover(ing) (1)
To (4), the dampness alarming line is twisted (4) You Lianggen warning wire (4-1), and the warning wire (4-1) includes N-type
Polyethylene foams sheath (4-2), the conductor thread core (4- being coated in the N-type polyethylene foams sheath (4-2)
3) it, is connected between the conductor thread core (4-3) of two warning wires (4-1) by warning device (3).
2. a kind of signal cable with dampness warning function as described in claim 1, it is characterised in that: the poly- second of N-type
Alkene foamed plastics sheath (4-2) is made using chemical blowing process, and the foaming agent used is N-dimethyl N or N- dinitroso
Terephthalamide.
3. a kind of signal cable with dampness warning function as claimed in claim 2, it is characterised in that: the poly- second of N-type
The foam degrees of alkene foamed plastics sheath (4-2) are 65%.
4. a kind of signal cable with dampness warning function as claimed in claim 1 or 2, it is characterised in that: the N-type is poly-
The pipe thickness of vinylic foam sheath (4-2) is 0.3mm-0.4mm.
5. a kind of signal cable with dampness warning function as described in claim 1, it is characterised in that: the conductor thread core
(4-3) is copper conductor, which is 0.5mm-1.0mm.
6. a kind of signal cable with dampness warning function as described in claim 1, it is characterised in that: the warning device
(3) it is formed by connecting by alarm (3-1) and power supply (3-2).
7. a kind of signal cable with dampness warning function as described in claim 1, it is characterised in that: the cable cover(ing)
It (1) include the cable core band (1-1), moistureproof shield layer (1-2), inner sheath (1-3), galvanized steel strip set gradually from inside to outside
(1-4), DWZR oversheath (1-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910881457.0A CN110504055A (en) | 2019-09-18 | 2019-09-18 | A kind of signal cable with dampness warning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910881457.0A CN110504055A (en) | 2019-09-18 | 2019-09-18 | A kind of signal cable with dampness warning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110504055A true CN110504055A (en) | 2019-11-26 |
Family
ID=68592210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910881457.0A Pending CN110504055A (en) | 2019-09-18 | 2019-09-18 | A kind of signal cable with dampness warning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110504055A (en) |
-
2019
- 2019-09-18 CN CN201910881457.0A patent/CN110504055A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1311472A (en) | Pipe system of heat insulated pipes including means for detecting the presence of moisture | |
| RU2289753C1 (en) | Method and system for operative remote control of condition of polyurethane pipeline heat insulation | |
| CN110504055A (en) | A kind of signal cable with dampness warning function | |
| CN209183310U (en) | A kind of fireproof power cable of all fronts channel Temperature Measuring alarm | |
| CN108614196A (en) | A kind of high-voltage cable that can detect electric discharge automatically | |
| CN210378523U (en) | Railway signal cable | |
| CN207381135U (en) | A kind of automatic constant-temperature electric heat tracing type cable | |
| CN213277581U (en) | Intelligent medium-voltage photoelectric composite cable for rail transit | |
| CN202711816U (en) | Extrusion resistant type composite cable | |
| CN210293574U (en) | Novel water leakage detection cable and water leakage detection system | |
| CN212874085U (en) | Ultrahigh-speed high-low temperature resistant data bus cable for aviation | |
| CN218646533U (en) | Oil leak detection line and detection equipment | |
| CN201262774Y (en) | Linetype heat detector for multi-loop sectional monitoring temperature-sensing electrical signal | |
| CN208954687U (en) | Underwater equipment photoelectric compound cable | |
| CN203673866U (en) | Power cable capable of monitoring operating temperature | |
| CN202711817U (en) | Optical fiber composite power cable | |
| CN211907045U (en) | Water surface photovoltaic system is with cable that blocks water entirely | |
| CN105021858B (en) | Antitheft electric system | |
| CN215731058U (en) | 1500v direct current traction cable for plastic insulation rail transit | |
| CN217878209U (en) | High-temperature-resistant liquid leakage detection line and detection equipment | |
| CN220474355U (en) | Flame-retardant high-temperature-resistant wire | |
| CN110031119B (en) | Reducing cable wiring system with temperature control alarm system | |
| CN218826325U (en) | Axial water-blocking cable | |
| CN216330656U (en) | Recoverable cable type linear difference constant temperature fire detector | |
| CN203812345U (en) | Transformer anti-theft detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |