CN205376141U - Urban rail transit is with moving compound flexible cable that blocks water of synthesizing of accuse - Google Patents
Urban rail transit is with moving compound flexible cable that blocks water of synthesizing of accuse Download PDFInfo
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- CN205376141U CN205376141U CN201521006714.XU CN201521006714U CN205376141U CN 205376141 U CN205376141 U CN 205376141U CN 201521006714 U CN201521006714 U CN 201521006714U CN 205376141 U CN205376141 U CN 205376141U
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Abstract
The utility model provides an urban rail transit is with moving compound flexible cable that blocks water of synthesizing of accuse, including DC power cable cable core and control core, control core includes at least that control core conductor and control core are insulating, and the control core concentric stranding constitutes the control core layer outside the DC power cable cable core, the DC power cable cable core includes the first inner sheath layer of the DC power cable insulation of DC power cable conductor, crowded package, the fire -retardant area that blocks water of first height of winding the package, woven shield, crowded package from inside to outside in proper order, include in proper order from inside to outside outside the control core layer around the high fire -retardant area that blocks water of second of package, crowded package second inner sheath layer, crowded oversheath layer, the metal that the wraps sheath that blocks water, this cable has higher insulating properties, fire -retardant A level, low smoke and zero halogen, synthesizes and blocks water effectual, protection against rodents and prevent that ant, anti ultraviolet, resistance field disturb, the compliance is good, bending property is good, compact structure, and plays the transmission electric energy simultaneously and act on with control, signal, protection and measuring.
Description
Technical field
This utility model patent relates to field of cable technology, specifically, relates generally to the dynamic control compound integrated water stop flexible cable of a kind of urban track traffic.
Background technology
Urban track traffic is that at present the major measure of traffic environment is improved in international big city, due to the particularity of track traffic, the safety of power system, reliability requirement is high.And subway, light rail cable lay circumstance complication, prior art products tends not to meet the various rigors laid simultaneously；The use environment of urban light rail subway cable mostly is densely populated underground, once breaking out of fire, the environment of underground sealed brings very big difficulty to personnel escape and fire-fighting work.Therefore requiring higher to fire resistance, fire resistance to meet the requirement of A level in GB/T18380.3.Meanwhile, during burning, the release of smog and toxic gas can hinder firemanic carrying out, and people and equipment can be damaged by sour gas, and time therefore to burning, the burst size of smog and toxic gas also has higher requirement；Urban light rail subway cable is due to the effect of environment and meteorological factor, the cable likely long period lays in a humidity environment, hydrone likely immerses cable, invade inside cable, absorbed by insulation absorption, cause the decline of electric property, the oxidation of conductor, corrosion can be caused, not only affecting the electrical property of cable, and time serious, abnormal broken line accident can occur, cable to have water-proof function；Urban light rail subway cable is laid in underground for a long time, it is easy to being subject to the attack of toy (such as muroid, ant class), affect the performance of cable, cable should have termite-resistant rodent-resistant function；If urban light rail subway cable cable is not use in subway, but it is laid in elevated railway, thus it is likely to the test standing sun exposure and various meteorological condition for a long time, the sheath of cable is for a long time by sun exposure, color fading easily occurs, mechanical and physical performance declines the even phenomenon such as cracking, and cable should have anti-ultraviolet function；Urban light rail subway cable laying limited space, one side requires direct current cables lightweight, flexible, radius of turn is little.On the other hand, the cable type laid in roughing-in is many, quantity is many, it is necessary to the outside diameter of cable is little, easily lay；Urban light rail subway is except the substantial amounts of power cable of needs; also need to use substantial amounts of control, signal, protection and measure cable; prior art is it is contemplated that the factor of electric interfering field; often power cable is individually processed with control, signal, protection and measurement cable, is laid respectively; this not only brings difficulty to construction, too increases use and construction cost；And owing to the wire core diameter of control, signal, protection and measurement cable is less, tensile strength is relatively low, easily abrades or break in laid processes.
Utility model content
The purpose of this utility model be to provide a kind of have that higher insulating properties, fire-retardant A level, low smoke and zero halogen, integrated water stop be effective, termite-resistant rodent-resistant, anti-ultraviolet, anti-electric jamming, flexibility are good, good bending property, compact conformation, and simultaneously work as the dynamic control compound integrated water stop flexible cable of urban track traffic of transmission electric energy and control, signal, protection and measurement.
A kind of urban track traffic described in the utility model is with dynamic control compound integrated water stop flexible cable, including insulation DC electric cable cable core and at least two control conductor.Described control conductor at least includes control conductor conductor and control conductor insulation, and control conductor concentric stranding constitutes control line sandwich layer outside insulation DC electric cable cable core；The insulation DC electric cable insulation that described insulation DC electric cable cable core includes insulation DC electric cable conductor from inside to outside successively, extrude, the first wrapped high fire-retardance waterstop, woven shield, the first inner restrictive coating of extruding；The external sheath layer that include wrapped the second high fire-retardance waterstop outside described control line sandwich layer from inside to outside successively, extrude the second inner restrictive coating, extrudes, metal block water sheath.
Improve further, between described control conductor, be filled with flame resistant filler rope.
Improve further, outside described control conductor, be surrounded with alkali-free glass fibre band.
Improving further, described insulation DC electric cable conductor, control conductor conductor are water-blocking conductor, and preferential selection is filled with the water-blocking conductor of water-proofing powder.
Improving further, described woven shield is monolayer braiding or multi-layer braided.
Improving further, described woven shield is coated with Fire retardation fireproof material or is impregnated with water-proofing powder.
Improving further, described the first high fire-retardance waterstop, the second high fire-retardance waterstop are that surface impregnation has the low-smoke bittern-free highly fire-proof of inorganic combustion inhibitor to block water high fire-retardance band with the low smoke and zero halogen being also impregnated with water-proofing powder simultaneously.
Improving further, the first described inner restrictive coating is polythene inner or low-smoke bittern-free highly fire-proof oxygen barrier sheath.
Improving further, the second described inner restrictive coating is the low-smoke bittern-free highly fire-proof oxygen barrier sheath being filled with inorganic combustion inhibitor.
Improving further, described external sheath layer is low-smoke halogen-free flame-retardant sheath material.
Further improving, described metal blocks water sheath for indulging bag, vertical bag embossing or extruding, and preferentially selects vertical bag embossing aluminum alloy strip or hard brass band.
This utility model adopts above technical scheme compared with prior art, has following technical effect that
(1) having higher insulating properties, and adopt low cigarette without compared with (low) halogen flame-proof cross-linking polyolefin insulation in prior art, the electricity function index such as the insulation resistance constant of cable and specific insulation will not reduce, and maintains higher insulating properties.
(2) fire-retardant A level, multilamellar high fire-retardance band, low-smoke bittern-free highly fire-proof oxygen barrier sheath, alkali-free glass cord combinative structure, make cable reach fire-retardant A level requirement, in A class combustion test, jacket surface carbonized part length can meet national standard requirement.High fire-retardance band, high fire-retardance oxygen barrier sheath, its oxygen index (OI) is more than 45, and main component includes substantial amounts of inorganic combustion inhibitor, and igniting of cable is the process of heat release after a first heat absorption, cable needs to absorb substantial amounts of heat before igniting makes the material in cable reach flash-point, could burn.High fire-retardance band, high fire-retardance oxygen barrier sheath are with a large amount of non-flammable inorganic hydrogen aluminium oxidies, magnesium hydroxide etc., the thermal capacity making cable increases and thermal-conduction resistance reduces, the raising that under retardation flame, oversheath heats up, additionally, when aluminium hydroxide temperature is increased to 250 DEG C, bleed reaction occurs, process needs absorb amount of heat and discharges a large amount of steam simultaneously, and steam can dilute imflammable gas, effectively suppress the appearance of material flash-point, contribute to stoping the burning of cable.High fire-retardance band, high fire-retardance inner sheath crust also fine, after flame combustion, precipitate out the aluminium oxide duricrust that do not fire of water transform Cheng Burong and be wrapped in that insulation is outer stops flame to enter in insulation, also completely cut off contacting of insulation and external world's oxygen, made the intensity of a fire be controlled.Alkali-free glass cord is formed by alkali-free glass gauze Shu Hecheng stock is stranded again, fire-retardant, fire-resistant, has higher tensile strength, higher electrical insulation capability, good chemical stability and thermostability simultaneously, and hygroscopicity is little.
(3) low smoke and zero halogen, inner restrictive coating, external sheath layer, high fire-retardance band are all low smoke and zero halogen materials.Light transmittance, halogen acid gas burst size, pH value, the equal conformance with standard of electrical conductivity require and have very big surplus, when cable material and cable smoke density test burn, light transmittance is less than 60%, halogen acid gas burst size when taking from the material combustion of cable is less than 5mg/g, discharging the water solublity pH value of gas when taking from the material combustion of cable more than 4.3, the electrical conductivity of aqueous solution is less than 10 μ s/mm.
(4) waterproof, duplex sheath and the metal sheath that blocks water can increase radially water proofing property, and the low smoke and zero halogen high fire-retardance band that blocks water can play resistance effect, conductor is filled water-proofing powder, alkali-free glass cord hygroscopicity is little, it is possible to play longitudinal waterproof action, thus playing integrated water stop effect.
(5) termite-resistant rodent-resistant, the metal sheath that blocks water has enough hardness to stand the attack of mouse, Coptotermes formosanus Shtrari..Sheath material adds capsaicin, adopt capsaicin as anti-termite agent, oral mucosa and the olfactory nerves that can make murine are subject to intense stimulus and detest and reject to chew cutting, can hit again simultaneously and kill Coptotermes formosanus Shtrari., there is difunctional nontoxic, environmental protection, nuisanceless, effective component content is high, addition is little, effect duration is long.
(6) anti-ultraviolet, oversheath adopts the material of ultraviolet resistance or adds the auxiliary agents such as UV resistant absorbent in sheath material to improve the performance of material, the test of sun exposure and various meteorological condition can be stood for a long time, the sheath of cable, for a long time by sun exposure, does not have color fading, mechanical and physical performance declines the even phenomenon such as cracking.
(7) anti-electric jamming, braided metal screen layer can play shielding action, it is possible to makes direct current cables and controls cable synchronizing work but non-interference electric field.
(8) good bending property, conductor adopts 5 class conductors more more soft than 2 class conductors, and insulation adopts second third to insulate more more soft than crosslinked polyetylene insulated, good bending property, and bending radius is very little and tolerates vibrations, it is possible to is used in radius of turn and requires strict place.
(9) compact conformation, control conductor and power wire core are concentric structure, and external diameter is little.
(10) simultaneously working as transmission electric energy and control, signal, protection and measurement effect, direct current power cable core transmits in power circuit and distributes electric energy.Control conductor transmits signal in the controlling or controls operation between the heart and system, or is used for protecting, measuring.Direct current power cable core and control cable core are combined with each other, and not only save material, cost of manufacture, and can construct simultaneously, reduce construction times and operating expenses.It also avoid because of cable laying narrow space, during construction, easily damage the tiny problem controlling cable core.
Accompanying drawing explanation
Below with reference to accompanying drawing, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model；
Wherein, 1, control conductor conductor, 2, control conductor insulation, 3, insulation DC electric cable conductor, 4, insulation DC electric cable insulation, the 5, first high fire-retardance waterstop, 6, woven shield, 7, the first inner restrictive coating, 8, flame resistant filler rope, the 9, second high fire-retardance waterstop, the 10, second inner restrictive coating, 11, external sheath layer, 12, metal blocks water sheath.
Detailed description of the invention
This utility model provides a kind of urban track traffic with dynamic control compound integrated water stop flexible cable, and for making the purpose of this utility model, this utility model clearly, clearly, and is further described by technical scheme and effect with reference to accompanying drawing examples.Should be appreciated that and described herein be embodied as only in order to explain this utility model, be not used to limit this utility model.
As it is shown in figure 1, urban track traffic provided by the utility model is with dynamic control compound integrated water stop flexible cable, including insulation DC electric cable cable core and at least two control conductor.Described control conductor at least includes control conductor conductor 1 and control conductor insulation 2, and control conductor concentric stranding constitutes control line sandwich layer outside insulation DC electric cable cable core；The insulation DC electric cable insulation 4 that described insulation DC electric cable cable core includes insulation DC electric cable conductor 3 from inside to outside successively, extrude, the first wrapped high fire-retardance waterstop 5, woven shield 6, the first inner restrictive coating 7 of extruding；The external sheath layer 11 that include wrapped the second high fire-retardance waterstop 9 outside described control line sandwich layer from inside to outside successively, extrude the second inner restrictive coating 10, extrudes, metal block water sheath 12.
Wherein, between control conductor, it is filled with flame resistant filler rope 8, outside control conductor, is surrounded with alkali-free glass fibre band；Insulation DC electric cable conductor 3, control conductor conductor 1 are water-blocking conductor, and preferential selection is filled with the water-blocking conductor of water-proofing powder；Woven shield 6 is monolayer braiding or multi-layer braided, and woven shield is coated with Fire retardation fireproof material or is impregnated with water-proofing powder；First high fire-retardance waterstop the 5, second high fire-retardance waterstop 9 has the low smoke and zero halogen that inorganic combustion inhibitor is also impregnated with water-proofing powder simultaneously to block water high fire-retardance band for surface impregnation；First inner restrictive coating 7 is polythene inner or low-smoke bittern-free highly fire-proof oxygen barrier sheath, and the second inner restrictive coating 10 is the low-smoke bittern-free highly fire-proof oxygen barrier sheath being filled with inorganic combustion inhibitor；External sheath layer 11 is low-smoke halogen-free flame-retardant sheath material, preferentially select low-smoke halide-free fireproof composite polyolefine material, preferential selection is with the material of ultraviolet resistance or adds the auxiliary agents such as UV resistant absorbent in sheath material to improve the performance of material, preferentially selects and adds capsaicin in sheath material as anti-termite agent；Metal blocks water sheath 12 for indulging bag, vertical bag embossing or extruding, and preferentially selects vertical bag embossing aluminum alloy strip or hard brass band.
The conductor that this utility model adopts is the naked annealed copper conductor meeting GB/T3956-2008 or metal cladding annealed copper conductor that cable is conventional, the hard circular copper wire of multiply including compacting pressing forms 2 class conductors or the 5 class conductors etc. of the soft circular copper wire composition of the non-multiply pressed, the preferential selection wire core diameter tin plating 5 class conductors less than 0.5mm.
Insulation is crosslinked polyethylene or EP rubbers, preferentially selects EP rubbers.
This utility model provides the dynamic control compound integrated water stop flexible cable of a kind of urban track traffic; the above is only of the present utility model be preferable to carry out method; should be understood that; for those skilled in the art; under the premise without departing from this utility model principle; can also making some improvement, these improvement also should be regarded as protection domain of the present utility model.
Claims (10)
1. a urban track traffic controls compound integrated water stop flexible cable with dynamic, including insulation DC electric cable cable core and at least two control conductor, it is characterized in that, described control conductor at least includes control conductor conductor and control conductor insulation, and control conductor concentric stranding constitutes control line sandwich layer outside insulation DC electric cable cable core；The insulation DC electric cable insulation that described insulation DC electric cable cable core includes insulation DC electric cable conductor from inside to outside successively, extrude, the first wrapped high fire-retardance waterstop, woven shield, the first inner restrictive coating of extruding；The external sheath layer that include wrapped the second high fire-retardance waterstop outside described control line sandwich layer from inside to outside successively, extrude the second inner restrictive coating, extrudes, metal block water sheath.
2. a kind of urban track traffic according to claim 1 controls compound integrated water stop flexible cable with dynamic, it is characterised in that be filled with flame resistant filler rope between described control conductor.
3. a kind of urban track traffic according to claim 1 controls compound integrated water stop flexible cable with dynamic, it is characterised in that be surrounded with alkali-free glass fibre band outside described control conductor.
4. a kind of urban track traffic according to claim 1 controls compound integrated water stop flexible cable with dynamic, it is characterised in that described insulation DC electric cable conductor, control conductor conductor are water-blocking conductor.
5. a kind of urban track traffic according to claim 1 controls compound integrated water stop flexible cable with dynamic, it is characterised in that described woven shield is monolayer braiding or multi-layer braided, and it is coated with Fire retardation fireproof material or is impregnated with water-proofing powder.
6. a kind of urban track traffic according to claim 1 controls compound integrated water stop flexible cable with dynamic, it is characterized in that, described the first high fire-retardance waterstop, the second high fire-retardance waterstop are that surface impregnation has the low smoke and zero halogen of inorganic combustion inhibitor and water-proofing powder to block water high fire-retardance band.
7. a kind of urban track traffic according to claim 1 controls compound integrated water stop flexible cable with dynamic, it is characterised in that the first described inner restrictive coating is polythene inner or low-smoke bittern-free highly fire-proof oxygen barrier sheath.
8. a kind of urban track traffic according to claim 1 controls compound integrated water stop flexible cable with dynamic, it is characterised in that the second described inner restrictive coating is the low-smoke bittern-free highly fire-proof oxygen barrier sheath being filled with inorganic combustion inhibitor.
9. a kind of urban track traffic according to claim 1 controls compound integrated water stop flexible cable with dynamic, it is characterised in that described external sheath layer is low-smoke halogen-free flame-retardant sheath material.
10. a kind of urban track traffic according to claim 1 is with dynamic control compound integrated water stop flexible cable, it is characterised in that the described metal sheath that blocks water is vertical bag, vertical bag embossing or the aluminum alloy strip extruded or hard brass band.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521006714.XU CN205376141U (en) | 2015-12-08 | 2015-12-08 | Urban rail transit is with moving compound flexible cable that blocks water of synthesizing of accuse |
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| CN201521006714.XU CN205376141U (en) | 2015-12-08 | 2015-12-08 | Urban rail transit is with moving compound flexible cable that blocks water of synthesizing of accuse |
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| CN205376141U true CN205376141U (en) | 2016-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374420A (en) * | 2015-12-08 | 2016-03-02 | 无锡江南电缆有限公司 | Power control composite integrated waterproof flexible cable for city track traffic |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374420A (en) * | 2015-12-08 | 2016-03-02 | 无锡江南电缆有限公司 | Power control composite integrated waterproof flexible cable for city track traffic |
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