CN109494009A - It is a kind of intelligence minerals in pressure fire prevention from monitoring cable - Google Patents

It is a kind of intelligence minerals in pressure fire prevention from monitoring cable Download PDF

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Publication number
CN109494009A
CN109494009A CN201811611447.7A CN201811611447A CN109494009A CN 109494009 A CN109494009 A CN 109494009A CN 201811611447 A CN201811611447 A CN 201811611447A CN 109494009 A CN109494009 A CN 109494009A
Authority
CN
China
Prior art keywords
layer
wrapped
fire prevention
intelligent
pressure fire
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
Application number
CN201811611447.7A
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Chinese (zh)
Inventor
郭培涛
陈乐银
王欣欣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI SHENGHUA ELECTRIC CO Ltd
Original Assignee
SHANGHAI SHENGHUA ELECTRIC CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI SHENGHUA ELECTRIC CO Ltd filed Critical SHANGHAI SHENGHUA ELECTRIC CO Ltd
Priority to CN201811611447.7A priority Critical patent/CN109494009A/en
Publication of CN109494009A publication Critical patent/CN109494009A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • H01B7/295Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00Power cables
    • H01B9/005Power cables including optical transmission elements
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00Power cables
    • H01B9/02Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
    • H01B9/021Features relating to screening tape per se
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00Power cables
    • H01B9/02Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
    • H01B9/022Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of longitudinal lapped tape-conductors

Abstract

The present invention relates to pressure fire prevention monitoring cables, including insulated phase wires core, fiber unit, filled layer, wrapped fireprotection layer, protective layer and oversheath certainly in a kind of intelligent minerals;Insulated phase wires core is equipped with several; filled layer is filled between the gap of insulated phase wires core side; wrapped fireprotection layer is outside filled layer; protective layer is wrapped in outside wrapped fireprotection layer; oversheath is wrapped in outside protective layer, and fiber unit is distributed in external void between the stranded intermediate gap of insulated phase wires core and adjacent insulated phase wires core.Compared with prior art, cable of the invention remained to when realizing midium voltage cable fire using, kindling generate gas and smog it is nontoxic and pollution-free, increase fire after firefighting rescue time and intellectual monitoring requirement, so that personal safety is ensured, property loss is reduced, and the expense of cable maintenance and determining cable fault position decreases.

Description

It is a kind of intelligence minerals in pressure fire prevention from monitoring cable
Technical field
The present invention relates to a kind of cables, monitor cable certainly more particularly, to pressure fire prevention in a kind of intelligent minerals.
Background technique
With the continuous development of domestic city, economy is increased rapidly, and many skyscrapers emerge in multitude.If using low pressure 0.6/1kV distribution will be doubled and redoubled compared with common building object cable dosage, laying difficulty and workload, and the building occupied is empty Between can be bigger.It presses (6~35kV) cable laying in carrying out distribution again in building in, has not only saved material but also energy saving.
Densely populated in skyscraper, once there is fire, cable can not provide electric energy to electrical equipment, certainly will be to people Member's evacuation makes a big impact, and leads to major casualties and property loss, therefore to the safety of midium voltage cable used in building It is required that rank is higher.But the fire resistance, mechanical performance and intellectual monitoring performance of existing middle pressure (6~35kV) cable need It is further to improve, it is ensured that cable can be implemented to monitor in overheating, and in temperature very Gao Shineng normal use, will be personal Injures and deaths and property loss are preferably minimized always industry urgent problem.
Application No. is the Chinese patents of CN201511003943.0 to disclose pressure fire resisting intellectual monitoring cable in one kind, including Three insulated phase wires cores, fiber unit, flame resistant filler layer, fire-retardant band, sheath, armor and oversheath;The insulation phase Core is followed successively by metallic conductor, inner shield, insulation, external shield and metallic shield from inside to outside;The insulation is the friendship of high dielectric Connection polyethylene extrudes;The metallic shield, which is that combarloy band is wrapped, to be formed.
Above-mentioned patent generally has to increase inner sheath when being subjected to 950 DEG C of 180min using crosslinked polyetylene insulated With steel-tape armouring structure, and this structure greatly increases the outside diameter of cable and weight, this structure also reduces protective value, is crosslinked poly- second Alkene insulation and interior external shield fusing point are also just at 160 DEG C or so.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide in a kind of intelligent minerals Pressure fire prevention monitors cable certainly.
The purpose of the present invention can be achieved through the following technical solutions:
Pressure fire prevention is from monitoring cable in a kind of intelligence minerals, including insulated phase wires core, fiber unit, filled layer, wrapped Fireprotection layer, protective layer and oversheath;The insulated phase wires core is equipped with several, and the filled layer is filled in insulated phase wires core side gap Between, outside filled layer, the protective layer is wrapped in outside wrapped fireprotection layer the wrapped fireprotection layer, and the oversheath is wrapped in Outside protective layer, the fiber unit is distributed between the stranded intermediate gap of insulated phase wires core and adjacent insulated phase wires core external empty Gap.
Further, the insulated phase wires core be followed successively by from inside to outside metallic conductor, inner shield, insulating layer, external shield and Metallic shield.Inner shield is conductor shielding, and external shield is insulation shielding.
Further, the metallic conductor meets the regulation of GB/T 3956-2008, presses structure using the second similar round.
Further, the insulating layer is that high dielectric crosslinked polyethylene extrudes.
Further, the metallic shield forms for combarloy band is wrapped.
Further, the semiconductive shieldin material that the inner shield and external shield are all made of cross-linking type extrudes.
Further, the fiber unit uses multimode temperature-measuring optical fiber resistant to high temperature.
Further, the filled layer is filling fireprotection layer or common filled layer or ceramic filler rope, mainly plays fire-retardant work With.The ceramic filler rope is purchased from Shanghai Ke Te new material limited liability company.
Further, the wrapped fireprotection layer is formed using ceramic silica gel composite band is wrapped, plays fire retardation.It is described around Packet fireprotection layer refractory temperature can reach 1200 DEG C, 3 hours, have the fiery expansion effect of super heat-insulated chance.
Further, the protective layer is the ceramic polyolefin or ceramic silica gel protective layer of extrusion molding, the protective layer For flute profile protective layer symmetrical above and below, thickness in monolayer 1.5mm, overall thickness 3mm.Using in ceramic polyolefin or ceramic silica gel replacement Sheath and steel-tape armouring, ceramic polyolefin and ceramic silicon rubber belong to high fire proofing material, can pass through the test of 950 DEG C of 180min, Mitigate cable weight significantly, but also be able to satisfy BS6387-2013C WZ tri- and examine greatly, protection cable operates normally, and drops Low cable internal temperature rise reduces cable overall weight.
Further, the oversheath is that resistant environmental low-smoke halogen-free flame polyolefin extrudes.
Further, the insulated phase wires core is equipped with 3.
Pressure fire prevention has the advantage that from monitoring cable operational process in intelligence minerals of the present invention
1) when insulated phase wires core temperaturing lifting abnormality, then temperature signal is passed back in control positioned at the temperature-measuring optical fiber of cable center The heart can be realized the real-time monitoring of cable internal temperature;
2) when a fire, low-smoke and halogen-free flame retardant polyolefin jacket (oxygen index (OI) 36) plays high fire retardant effect, when Temperature passes to the inside, and temperature-measuring optical fiber plays a role, and conveys signal to fire fighter.And the inside is not only oxygen barrier layer but also rescues to fire-fighting It helps and wins the quality time;
3) filling fireprotection layer increases the mechanical performance and bending property of cable, saves laying space;
4) the flame resistant filler layer of environment-friendly type is filled instead of alkali-free glass wool, avoids alkali-free glass in cable production process Silk stabs skin, and has fire protecting performance.
Cable of the invention remained to when realizing midium voltage cable fire using, kindling generate gas and the nontoxic no dirt of smog The time of firefighting rescue and intellectual monitoring requirement after dye, increase fire, so that personal safety is ensured, property loss is subtracted Few, the expense of cable maintenance and determining cable fault position decreases.
Compared with prior art, pressure fire prevention has passed through BS 6387 and has provided from monitoring cable in intelligence minerals of the present invention C, W, Z grade fire-resistance property examination, and in cable is run plus people's high temperature multimode temperature-measuring optical fiber, can insulation phase Core temperaturing lifting abnormality is then passed temperature signal back control centre positioned at the temperature-measuring optical fiber of cable center, be can be realized inside cable The real-time monitoring of temperature makes cable operation safer.
Detailed description of the invention
Fig. 1 is that pressure is prevented fires from monitoring construction of cable schematic diagram in intelligent minerals in embodiment 1.
Figure label: 1, metallic conductor, 2, inner shield, 3, insulating layer, 4, external shield, 5, metallic shield, 6, fiber unit, 7, filled layer, 8, wrapped fireprotection layer, 9, protective layer, 10, oversheath.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
With reference to Fig. 1, pressure fire prevention is from monitoring cable in a kind of intelligence minerals, including insulated phase wires core, fiber unit 6, fills out Fill layer 7, wrapped fireprotection layer 8, protective layer 9 and oversheath 10;Insulated phase wires core is equipped with several, and filled layer 7 is filled in insulation phase Between the gap of core side, outside filled layer 7, protective layer 9 is wrapped in outside wrapped fireprotection layer 8 wrapped fireprotection layer 8, and oversheath 10 wraps up Outside protective layer 9, fiber unit 6 is distributed between the stranded intermediate gap of insulated phase wires core and adjacent insulated phase wires core external empty Gap.
Wherein, insulated phase wires core is followed successively by metallic conductor 1, inner shield 2, insulating layer 3, external shield 4 and metal from inside to outside Shielding 5.Inner shield 2 is conductor shielding, and external shield 4 is insulation shielding.Metallic conductor 1 meets the regulation of GB/T3956-2008, adopts Press structure with the second similar round.Insulating layer 3 is that high dielectric crosslinked polyethylene-XLPE is extruded.Metallic shield 5 is highly conductive Copper strips is wrapped to be formed.The semiconductive shieldin material that inner shield 2 and external shield 4 are all made of cross-linking type extrudes.
Wherein, fiber unit 6 uses multimode temperature-measuring optical fiber resistant to high temperature.Filled layer 7 is filling fireprotection layer or common filling Layer or ceramic filler rope, mainly play fire retardation.Ceramic filler rope is purchased from Shanghai Ke Te new material limited liability company.It is wrapped Fireprotection layer 8 is formed using ceramic silica gel composite band is wrapped, plays fire retardation.Wrapped 8 refractory temperature of fireprotection layer can reach 1200 DEG C, 3 hours, there is the fiery expansion effect of super heat-insulated chance.Protective layer 9 is ceramic polyolefin or the ceramic silica gel protection of extrusion molding Layer, protective layer 9 are flute profile protective layer symmetrical above and below, thickness in monolayer 1.5mm, overall thickness 3mm.Using ceramic polyolefin or ceramics Silica gel replaces inner sheath and steel-tape armouring, and ceramic polyolefin and ceramic silicon rubber belong to high fire proofing material, can pass through 950 DEG C The test of 180min, significantly mitigation cable weight, but also be able to satisfy BS6387-2013C W Z tri- and examine greatly, protection cable is just Often operation, and cable internal temperature rise is reduced, reduce cable overall weight.Oversheath 10 is resistant environmental low-smoke halogen-free flame polyene Hydrocarbon extrudes.
When insulated phase wires core temperaturing lifting abnormality, then temperature signal is passed back control centre positioned at the temperature-measuring optical fiber of cable center, It can be realized the real-time monitoring of cable internal temperature;When a fire, (oxygen index (OI) is low-smoke and halogen-free flame retardant polyolefin jacket 36) high fire retardant effect is played, when temperature passes to the inside, temperature-measuring optical fiber plays a role, and conveys signal to fire fighter.In and Face is not only oxygen barrier layer but also wins the quality time to fire-fighting and rescue;Filling fireprotection layer increases the mechanical performance and bendability of cable Can, save laying space;The flame resistant filler layer of environment-friendly type is filled instead of alkali-free glass wool, is avoided in cable production process Alkali-free glass wool stabs skin.
Pressure fire prevention in the present embodiment intelligence minerals is tested for the property from monitoring cable, structure such as table 1.
1 the performance test results of table
The cable of the present embodiment remained to when realizing midium voltage cable fire using, kindling generate gas and the nontoxic nothing of smog The time of firefighting rescue and intellectual monitoring requirement after pollution, increase fire, so that personal safety is ensured, property loss is subtracted Few, the expense of cable maintenance and determining cable fault position decreases.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention. Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be of the invention Within protection scope.

Claims (10)

1. it is a kind of intelligence minerals in pressure fire prevention from monitoring cable, which is characterized in that including insulated phase wires core, fiber unit (6), Filled layer (7), wrapped fireprotection layer (8), protective layer (9) and oversheath (10);The insulated phase wires core is described to fill out equipped with several Layer (7) is filled to be filled between the gap of insulated phase wires core side, the wrapped fireprotection layer (8) around filled layer (7) outside, the protective layer (9) it is wrapped in wrapped fireprotection layer (8) outside, the oversheath (10) is wrapped in protective layer (9) outside, fiber unit (6) distribution The external void between the stranded intermediate gap of insulated phase wires core and adjacent insulated phase wires core.
2. pressure fire prevention monitors cable certainly in a kind of intelligent minerals according to claim 1, which is characterized in that the insulation Phase core is followed successively by metallic conductor (1), inner shield (2), insulating layer (3), external shield (4) and metallic shield (5) from inside to outside, interior Shielding (2) is conductor shielding, and external shield (4) is insulation shielding.
3. pressure fire prevention monitors cable certainly in a kind of intelligent minerals according to claim 2, which is characterized in that the insulation Layer (3) is that high dielectric crosslinked polyethylene extrudes.
4. pressure fire prevention monitors cable certainly in a kind of intelligent minerals according to claim 2, which is characterized in that the metal Shielding (5), which is that combarloy band is wrapped, to be formed.
5. pressure fire prevention monitors cable certainly in a kind of intelligent minerals according to claim 2, which is characterized in that the interior screen It covers (2) and external shield (4) is all made of the semiconductive shieldin material of cross-linking type and extrudes.
6. pressure fire prevention monitors cable certainly in a kind of intelligent minerals according to claim 1, which is characterized in that the optical fiber Unit (6) uses multimode temperature-measuring optical fiber resistant to high temperature.
7. pressure fire prevention monitors cable certainly in a kind of intelligent minerals according to claim 1, which is characterized in that the filling Layer (7) is filling fireprotection layer or common filled layer or ceramic filler rope.
8. pressure fire prevention monitors cable certainly in a kind of intelligent minerals according to claim 1, which is characterized in that described wrapped Fireprotection layer (8) is formed using ceramic silica gel composite band is wrapped, plays fire retardation.
9. pressure fire prevention monitors cable certainly in a kind of intelligent minerals according to claim 1, which is characterized in that the protection Layer (9) is the ceramic polyolefin or ceramic silica gel protective layer of extrusion molding, and the protective layer (9) is flute profile symmetrical above and below protection Layer, thickness in monolayer 1.5mm, overall thickness 3mm.
10. pressure fire prevention monitors cable certainly in a kind of intelligent minerals according to claim 1, which is characterized in that described outer Sheath (10) is that resistant environmental low-smoke halogen-free flame polyolefin extrudes.
CN201811611447.7A 2018-12-27 2018-12-27 It is a kind of intelligence minerals in pressure fire prevention from monitoring cable Pending CN109494009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811611447.7A CN109494009A (en) 2018-12-27 2018-12-27 It is a kind of intelligence minerals in pressure fire prevention from monitoring cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811611447.7A CN109494009A (en) 2018-12-27 2018-12-27 It is a kind of intelligence minerals in pressure fire prevention from monitoring cable

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Publication Number Publication Date
CN109494009A true CN109494009A (en) 2019-03-19

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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111210940A (en) * 2020-02-26 2020-05-29 北京凯道建设工程有限公司 Intelligent sensing cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111210940A (en) * 2020-02-26 2020-05-29 北京凯道建设工程有限公司 Intelligent sensing cable

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