CN205722854U - A kind of low-smoke halogen-free inflaming-retarding cable - Google Patents
A kind of low-smoke halogen-free inflaming-retarding cable Download PDFInfo
- Publication number
- CN205722854U CN205722854U CN201620427899.XU CN201620427899U CN205722854U CN 205722854 U CN205722854 U CN 205722854U CN 201620427899 U CN201620427899 U CN 201620427899U CN 205722854 U CN205722854 U CN 205722854U
- Authority
- CN
- China
- Prior art keywords
- conductor
- low
- copper wire
- cable
- insulating barrier
- 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.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
A kind of low-smoke halogen-free inflaming-retarding cable, its structure is: multiply conductor strand, and per share conductor radial section is round-shaped, and conductor overall radial cross section is round-shaped；Conductor outer wrapping insulating barrier；The outer one layer of copper wire of outer cladding of insulating barrier dredge around screen layer, screen layer outer cladding one twining package tape, at this wrapped belt outer cladding oversheath.Compared with prior art, this structural cable is under identical function and performance requirement, and conductor diameter is less, saves insulant, and the electrical property of cable is more excellent, both mechanically and thermally etc. more excellent simultaneously.
Description
Technical field
The technical program belongs to field of cable technology, specifically a kind of low-smoke halogen-free inflaming-retarding cable.
Background technology
In prior art, one of critical specifications of cable is conductor diameter, the most identical material lower conductor footpath
The least to sectional area its resistance the biggest, the most heavy in section cable.Under general thinking, sectional area the biggest and
The consumption of conductor material is the biggest, and the external diameter of cable is the biggest.For common cable, ensureing electric conductivity
Under premise, reducing the external diameter of conductor as far as possible is one of target of pursuing.Meanwhile, the application scenarios environment of cable
Often the most severe, its mechanical performance, anti-wear performance, oil resistance, abnormal smells from the patient etc. require the harshest.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the invention proposes a kind of special construction, softness
The low-smoke halogen-free inflaming-retarding cable of conductor, its structure is: by conductor outer wrapping insulating barrier, insulating barrier outer cladding copper wire
Dredging around the screen layer constituted, the wrapped belt of screen layer outer cladding metal material, outside this wrapped belt outer cladding
Sheath is constituted；Described conductor is only made up of multiply same conductor strand stranded pressing, and presses coefficient range and is
0.92～0.94, all left-hands of direction of lay；Per share conductor strand is closed by copper filament tow and is constituted；Described insulation
The Insulation Material of layer is that low-smoke non-halogen flame-retardant elasticity mixes material；The protective cover material of described oversheath is low-smoke non-halogen flame-retardant
Elastic mixing material；In described screen layer, stranded copper wire juxtaposition is dredged and is wound on surface of insulating layer.
Insulation and sheath material be with olefine kind resin and other elastomers power fat as base material, add high-quality and efficient
Fire retardant, cross-linking agent, antismoke agent, antioxidant and other auxiliary agents, material low-smoke non-halogen flame-retardant, environmental protection, nothing
Taste.
As preferably, it is identical with multiply conductor strand direction of lay that the copper filament tow of per share conductor strand closes direction；
Conductor bundle is closed pitch and is not more than 30 times, and conductor strand pitch is not more than 16 times.
As preferably, the thickness range of described insulating barrier is 0.7mm～3.0mm；Average thickness is not less than nominal
Value, thinnest point is not less than the 90% of nominal value.
As preferably, the thickness range of described oversheath is 0.7mm～3.0mm.
As preferably, in described screen layer, sub-thread copper wire is that many copper monofilament merging form；Sub-thread brass wire diameter
For 0.10mm～0.15mm；Copper wire dredge around direction all left and right to overlap joint dredge around；Between adjacent sub-thread copper wire
Space can not accommodate the sub-thread copper wire that next root is identical.
As preferably, described wrapped belt is the overlapping wrapped composition of aluminium foil twining package tape, or, wrapped belt is aluminum
Paper tinsel wrapped composition overlapping with the composite band of polyester；The minimum overlay rate of wrapped belt is not less than 25%；Lapping direction
For dextrad；The thickness range of wrapped belt is 0.02mm～0.05mm.
As preferably, conductor was made up of 19 bursts of same conductor strand stranded pressing.
Compared with prior art, this structural cable, under identical function and performance requirement, saves insulant, with
Time cable conductor performance more preferably, mechanical performance, heat resistance, low-smoke non-halogen flame-retardant etc. more excellent.
Accompanying drawing explanation
Fig. 1 is the radial section schematic diagram of this cable；
In figure: conductor 1, insulating barrier 2, screen layer 3, wrapped belt 4, oversheath 5.
Detailed description of the invention
With detailed description of the invention, the technical program is further described below below in conjunction with the accompanying drawings:
Such as Fig. 1, the low-smoke halogen-free inflaming-retarding cable of this example, its structure is: per share by the conductor bundle conjunction of identical radical
Forming, every conductor was formed by 19 bursts of conductor strand stranded pressing, and pressed coefficient between 0.92 to 0.94,
The all left-hands of direction of lay, it is circle consolidation, on-deformable that 19 strands of conductor strand constitute radial section
The most wrapped any material outside cross section, and conductor, to guarantee its pliability.
Extruding one layer of low-smoke non-halogen flame-retardant elasticity mixing insulated with material layer outside conductor, this insulating barrier is good except having
Outside electric property, should also have low-smoke non-halogen flame-retardant, thermostability, low temperature resistant, fuel oil resistance, wear-resisting, weather-proof,
The requirements such as moisture-proof, tasteless, environmental protection, the aging temperature of insulation reaches 158 DEG C, and the time reaches 7 days, intensity and stretching
The retention rate of rate reaches 30%, 125 DEG C, 7 days whole lines aging after the most pressure do not puncture, do not ftracture, leakage current is the highest not
More than 2.5kV, the tolerance of the outside diameter of cable is less than ± 0.3mm.
The material of described oversheath is all the low-smoke non-halogen flame-retardant elasticity mixing material identical with insulating barrier.
Described thin around one layer of anticorrosion, weather-proof, the copper wire of antioxidation material, brass wire diameter is 0.1
Mm～0.15mm, copper wire strand is to for left-hand, and the adjacent space between single copper wire can not accommodate next root copper
Silk (i.e. between root and root space under can not accommodating again an other copper wire).
Described outside winding layer dredged by copper wire, it is coated with aluminium foil twining package tape again；The material of aluminium foil twining package tape be aluminium foil or aluminium foil with
The band that other materials is compound, it is possible to effectively prevent from passing through copper wire and insulation adhesion through the sheath material of extruding,
The minimum overlay rate of wrapped band is not less than 25%.
Described insulating barrier material is that low-smoke non-halogen flame-retardant elasticity mixes material, mixes material in low-smoke non-halogen flame-retardant elasticity
Dredge around one layer of anticorrosion, weather-proof, the copper wire of antioxidation material again outside material insulating barrier；Dredge around one layer of anticorrosion,
The material of the outer twining package tape of copper wire material weather-proof, antioxidation material is aluminium foil or aluminum foil composite tape material, minimum overlay
Rate is not less than 25%；Extruding one layer of material outside aluminium foil or plastic-aluminum combined band is the mixing of low-smoke non-halogen flame-retardant elasticity
The oversheath of material.
Through detection, the performance parameter of this cable is as follows:
1.20 DEG C of conductor DC resistances meet the resistance requirement in GB/T 25085 standard or ISO6722 standard.
2. insulation specific insulation 5 × 109Ω·mm
The most resistance to pressure request: 5kV, 15min do not puncture.
4. insulation immersion is pressure: 16kV, 5min do not puncture.
5. shielding rejection coefficient, maximum 0.05
6. leakage current meets the requirements.
7. the tensile strength of insulation and sheath is not less than 300% not less than 10Mpa, percentage elongation.
8. insulation and the sheath variation in tensile strength after aging is not less than 25%, and elongation change rate is not less than 25%.
9. 4h under the conditions of high temperature pressure 125 DEG C, depth of cup is not more than the 40% of wall thickness.
10. 6h under the conditions of thermal contraction requires 175 DEG C, shrinks and is not more than 2mm.
11. thermal overloads require 6h under the conditions of 175 DEG C, pressure do not puncture, wind not leakage conductance body, surface and do not ftracture.
4h under the conditions of 12.-40 DEG C, pressure does not punctures, and winding do not ftractures, not leakage conductance body.
13. chemical resistances require to soak in gasoline, diesel oil, mineral oil, ethanol, power steering fluid, coolant
Bubble 20h, outside diameter of cable rate of change is less than 15%.
14. short term thermal are aging: 240h is pressure not to be punctured, and winding does not reveal conductor, do not ftractures.
15. long term heat ageings: 3000h is pressure not to be punctured, and winding does not reveal conductor, do not ftractures.
The single vertical combustion test requirement of 16. cables and method should meet the regulation of GB/T 25085 standard.
17. cable smoke density light transmittances are not less than 70%.
18. meet ROHS requirement.
19. cables are tasteless.
20. halogen poison require HCL content less than 0.5%, the most fluorine-containing, pH value minimum 4.3, electric conductor maximum 10 μ s/mm.
21. cables have the performances such as resistance to ozone, heatproof humidity alternation, weather-proof, heat-proof water.
22. insulation heat extend: 200 DEG C, 15min, 0.2N/mm2 condition, under load, maximum elongation rate 175%, cold
But maximum permanent elongation 15% after.
Claims (6)
1. a low-smoke halogen-free inflaming-retarding cable, is characterized in that structure is: by conductor outer wrapping insulating barrier, insulation
The thin screen layer around composition of layer outer cladding copper wire, the wrapped belt of screen layer outer cladding metal material, wrapped at this
Belt outer cladding oversheath is constituted；
Described conductor is only made up of multiply same conductor strand stranded pressing, press coefficient range be 0.92～
0.94, all left-hands of direction of lay；
Per share conductor strand is closed by copper filament tow and is constituted；
The Insulation Material of described insulating barrier is that low-smoke non-halogen flame-retardant elasticity mixes material；The protective cover material of described oversheath is
Low-smoke non-halogen flame-retardant elasticity mixing material；
In described screen layer, stranded copper wire juxtaposition is dredged and is wound on surface of insulating layer；
The thickness range of described insulating barrier is 0.7mm～3.0mm；
The thickness range of described oversheath is 0.7mm～3.0mm.
A kind of low-smoke halogen-free inflaming-retarding cable the most according to claim 1, is characterized in that per share conductor strand
Copper filament tow close direction identical with multiply conductor strand direction of lay；
Conductor bundle is closed pitch and is not more than 30 times, and conductor strand pitch is not more than 16 times.
A kind of low-smoke halogen-free inflaming-retarding cable the most according to claim 1, is characterized in that described insulating barrier
Average thickness is not less than nominal value, and thinnest point is not less than the 90% of nominal value.
A kind of low-smoke halogen-free inflaming-retarding cable the most according to claim 1, is characterized in that in described screen layer,
Sub-thread copper wire is that many copper monofilament merging form；Sub-thread brass wire diameter is 0.10mm～0.15mm；Copper wire dredge around
All left and right, direction to overlap joint dredge around；The adjacent space between sub-thread copper wire can not accommodate the sub-thread that next root is identical
Copper wire.
A kind of low-smoke halogen-free inflaming-retarding cable the most according to claim 1, is characterized in that
Described wrapped belt is the overlapping wrapped composition of aluminium foil twining package tape, or, wrapped belt is aluminium foil and polyester
The overlapping wrapped composition of composite band；
The minimum overlay rate of wrapped belt is not less than 25%；Lapping direction is dextrad；
The thickness range of wrapped belt is 0.02mm～0.05mm.
A kind of low-smoke halogen-free inflaming-retarding cable the most according to claim 1, is characterized in that conductor is by 19 bursts of phases
Composition is pressed with conductor strand is stranded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620427899.XU CN205722854U (en) | 2016-05-11 | 2016-05-11 | A kind of low-smoke halogen-free inflaming-retarding cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620427899.XU CN205722854U (en) | 2016-05-11 | 2016-05-11 | A kind of low-smoke halogen-free inflaming-retarding cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205722854U true CN205722854U (en) | 2016-11-23 |
Family
ID=57304195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620427899.XU Active CN205722854U (en) | 2016-05-11 | 2016-05-11 | A kind of low-smoke halogen-free inflaming-retarding cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205722854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111223339A (en) * | 2019-12-11 | 2020-06-02 | 张华平 | Industrial and commercial management teaching system based on Internet of things |
-
2016
- 2016-05-11 CN CN201620427899.XU patent/CN205722854U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111223339A (en) * | 2019-12-11 | 2020-06-02 | 张华平 | Industrial and commercial management teaching system based on Internet of things |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10847286B2 (en) | Metal sheathed cable with jacketed, cabled conductor subassembly | |
| CN101606297A (en) | Protection device for power cables with impregnated-paper-based insulation | |
| JP2018088364A (en) | Water-resistant flame-retardant non-halogen sheath high-voltage cable | |
| CN203134448U (en) | Submarine cable with increased current-carrying capacity | |
| KR20120057823A (en) | Electrical power cable formed nylon sheath | |
| CN205722854U (en) | A kind of low-smoke halogen-free inflaming-retarding cable | |
| RU158299U1 (en) | THREE-PHASE POWER CABLE WITH A GENERAL METAL SCREEN | |
| EP3043357B1 (en) | Metal sheathed cable with jacketed, cabled conductor subassembly | |
| CN203607130U (en) | Aluminum alloy interlocking armored cable | |
| RU174138U1 (en) | SEALED FIRE RESISTANT CABLE | |
| CN204087907U (en) | Water resistant tree aluminium alloy conductor medium-pressure power cable | |
| RU2338279C2 (en) | Electric communication cable | |
| RU195814U1 (en) | ELECTRIC POWER CABLE | |
| CN209674910U (en) | A kind of comprehensive cable of heatproof zone maritime monsoon weather | |
| CN103383871A (en) | Environmental-friendly high-temperature resistant composite cable | |
| CN105761795A (en) | Silicone rubber flat cable | |
| CN208093170U (en) | A kind of aluminium alloy interlocking armouring water repellent electric cable | |
| RU106981U1 (en) | FLEXIBLE MOUNTING CABLE | |
| RU67763U1 (en) | EXPLOSIVE ELECTRICAL CABLE | |
| RU166060U1 (en) | ELECTRICAL CABLE WITH HEAT RESISTANT RUBBER INSULATION COLD RESISTANT | |
| CN218729951U (en) | Oxidation-resistant tinned soft round copper wire | |
| RU217636U1 (en) | Marine cable | |
| RU217589U1 (en) | Marine cable | |
| RU148879U1 (en) | THREE-PHASE POWER CABLE, NOT DISTRIBUTING COMBUSTION | |
| CN207938376U (en) | Fire resisting lightweight flexible cable is pressed in one kind |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |