CN107068260A - A kind of flexible mineral insulation cable - Google Patents
A kind of flexible mineral insulation cable Download PDFInfo
- Publication number
- CN107068260A CN107068260A CN201710259599.4A CN201710259599A CN107068260A CN 107068260 A CN107068260 A CN 107068260A CN 201710259599 A CN201710259599 A CN 201710259599A CN 107068260 A CN107068260 A CN 107068260A
- Authority
- CN
- China
- Prior art keywords
- enhancing
- insulating barrier
- fireprotection layer
- flame retardant
- mineral insulation
- 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
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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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- 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
- H01B1/026—Alloys based on copper
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/04—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances mica
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/08—Several wires or the like stranded in the form of a rope
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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
- H01B7/02—Disposition of insulation
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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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1895—Internal space filling-up means
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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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
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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
- 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
Abstract
The present invention relates to a kind of flexible mineral insulation cable, including sheath, enhancing fireprotection layer, conductor, flame retardant coating, insulating barrier and packed layer；Provided with enhancing fireprotection layer in the sheath；The enhancing fireprotection layer is high-flame-resistance halogen-free strap；It is provided with to wrap successively outside several conductors, and each above-mentioned conductor in the enhancing fireprotection layer and is provided with flame retardant coating and insulating barrier；The material of the flame retardant coating is calcining muscovite；The insulating barrier is EPR rubber；Packed layer is provided between the insulating barrier and enhancing fireprotection layer, the flexible mineral insulation cable of the present invention, it is simple in construction, cost is low, there is good fire protection flame retarding, heat-and corrosion-resistant, also there is preferable bending property and softness simultaneously, convenient use packaging and transport are placed, and meet the use demand of technical field of electric wires and cables.
Description
Technical field
The invention belongs to technical field of electric wires and cables, more particularly to a kind of flexible mineral insulation cable.
Background technology
Mineral insulated cable abbreviation MI cables, as distribution in use, domestic custom is referred to as magnesia cable or anti-thermoelectricity
Cable.It is the copper core copper sheath cable as insulation by mineral material magnesia powder, and mineral insulated cable is by copper conductor, oxidation
Magnesium, two kinds of inorganic material compositions of copper sheath.
The existing common working environment of mineral cable is all more severe, it is necessary in face of outer strips such as high temperature, low temperature, corrosion
The test of part, especially for the specific environment for having fire resisting and insulating requirements, such as offshore oil platform, oil plant, natural gas life
Illuminating line etc. on the mating existing network network and coke, the heating furnace electric wiring of metallurgical production and stove of induction system etc. is produced, and
The insulating properties and fire protecting performance of existing mineral insulated cable are not enough, and potential safety hazard is brought to actual use.
The content of the invention
A kind of fire resistance and insulating properties height are provided the invention aims to overcome the deficiencies in the prior art, and is made
With the flexible mineral insulation cable of long lifespan.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of flexible mineral insulation cable, including sheath, enhancing
Fireprotection layer, conductor, flame retardant coating, insulating barrier and packed layer；Provided with enhancing fireprotection layer in the sheath；The enhancing fireprotection layer is height
Fire-retardant Halogen band；Be provided with the enhancing fireprotection layer outside several conductors, and each above-mentioned conductor successively bag provided with flame retardant coating and
Insulating barrier；The material of the flame retardant coating is calcining muscovite；The insulating barrier is EPR rubber；The insulating barrier and enhancing are prevented fires
Packed layer is provided between layer.
It is preferred that, the material of the sheath is low smoke and zero halogen compound.
It is preferred that, the quantity of the conductor is four；The conductor is annealing twisted copper conductors.
It is preferred that, the packed layer is made up of several low smoke and zero halogen bars.
Due to the utilization of above-mentioned technical proposal, the present invention has following advantages compared with prior art：
The flexible mineral insulation cable of the present invention program, simple in construction, cost is low, with good fire protection flame retarding, heat resisting corrosion-proof
The advantage of erosion, while also having preferable bending property and softness, convenient use packaging and transport are placed, and meet electric wire electricity
The use demand of cable technical field.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the present invention；
Wherein：1st, sheath；2nd, fireprotection layer is strengthened；3rd, conductor；4th, flame retardant coating；5th, insulating barrier；6th, packed layer.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
A kind of flexible mineral insulation cable of the present invention as shown in Figure 1, including sheath 1, enhancing fireprotection layer 2,
Conductor 3, flame retardant coating 4, insulating barrier 5 and packed layer 6；Provided with enhancing fireprotection layer 2 in the sheath 1；The enhancing fireprotection layer 2 is height
Fire-retardant Halogen band；Several conductors 3 are provided with the enhancing fireprotection layer 2, and the outer bag successively of each above-mentioned conductor 3 is provided with flame retardant coating
4 and insulating barrier 5；The material of the flame retardant coating 4 is calcining muscovite；The insulating barrier 5 is EPR rubber；The insulating barrier 4 and increasing
Packed layer 6 is provided between strong fireprotection layer 5；The material of the sheath 1 is low smoke and zero halogen compound；The quantity of the conductor 3 is four
It is individual；The conductor 3 is annealing twisted copper conductors；The packed layer 6 is made up of several low smoke and zero halogen bars.
Specifically, wherein conductor uses annealing twisted copper conductors, belong to five class conductors, with natural bending property
Advantage, while insulating barrier uses rubber-covered, with stronger bending property, routinely cable laying requirement is i.e. when laying
Can, it is not necessary to the special junction box of inorganic mineral insulation cable and wiring Glan, while good environmental protection.
Flame retardant coating material therefor is calcining muscovite, and mica content is high, and specific insulation is larger, possesses certain insulating properties
Can, and its fire resisting can meet 950 DEG C of x 180min, fire resistance is very reliable, good environmental protection.
Packed layer is using the filling of low smoke and zero halogen bar, and compared with conventional polypropylene tear gasket for packing, content of halogen is lower, combustion
A large amount of dense smokes, good environmental protection are not produced after burning.
Enhancing fireprotection layer is high-flame-resistance halogen-free strap, has at 500 ~ 1200 DEG C under the conditions of flame, nonflame and does not melt, do not fall off not
Spot fire can be caused, firm ceramic-like armour body can be burnt till, the time is more long harder, can play it is extraordinary it is heat-insulated, cooling,
The effect of fire resisting；Specific insulation >=1.0*101 4 possesses preferable insulating effect；The other ceramic band flue gas toxity is small, inhales
Water rate is small, stable insulation, good environmental protection.
The material of sheath is low smoke and zero halogen compound, and oxygen index (OI) >=38 possess stronger flame retardant effect, and cable can integrally lead to
Cross IEC60332-3-22 bunchy fire retardancy test；Specific insulation >=1.0*101 1, good insulation preformance, low smoke and zero halogen, nothing
Asbestos, good environmental protection.
Further, above-mentioned flexible mineral insulation cable, it does not contain the magnesium oxide insulated of conventional mineral insulated cable, because
This does not possess moisture absorption, and insulaion resistance is highly stable, will not be deteriorated because of magnesia moisture absorption insulating properties.
The flexible mineral insulation cable of the present invention, simple in construction, cost is low, with good fire protection flame retarding, heat resisting corrosion-proof
The advantage of erosion, while also having preferable bending property and softness, convenient use packaging and transport are placed, and meet electric wire electricity
The use demand of cable technical field.
It the above is only the concrete application example of the present invention, protection scope of the present invention be not limited in any way.It is all to use
Technical scheme formed by equivalent transformation or equivalent replacement, all falls within rights protection scope of the present invention.
Claims (4)
1. a kind of flexible mineral insulation cable, it is characterised in that：Including sheath, enhancing fireprotection layer, conductor, flame retardant coating, insulating barrier
And packed layer；Provided with enhancing fireprotection layer in the sheath；The enhancing fireprotection layer is high-flame-resistance halogen-free strap；The enhancing fireprotection layer
Interior be provided with outside several conductors, and each above-mentioned conductor is wrapped provided with flame retardant coating and insulating barrier successively；The material of the flame retardant coating is
Calcine muscovite；The insulating barrier is EPR rubber；Packed layer is provided between the insulating barrier and enhancing fireprotection layer.
2. flexible mineral insulation cable according to claim 1, it is characterised in that：The material of the sheath is low smoke and zero halogen
Compound.
3. flexible mineral insulation cable according to claim 1, it is characterised in that：The quantity of the conductor is four；Institute
It is annealing twisted copper conductors to state conductor.
4. the flexible mineral insulation cable according to claim 1 or 3, it is characterised in that：The packed layer is low by several
Cigarette Halogen bar is constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710259599.4A CN107068260A (en) | 2017-04-20 | 2017-04-20 | A kind of flexible mineral insulation cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710259599.4A CN107068260A (en) | 2017-04-20 | 2017-04-20 | A kind of flexible mineral insulation cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107068260A true CN107068260A (en) | 2017-08-18 |
Family
ID=59600614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710259599.4A Pending CN107068260A (en) | 2017-04-20 | 2017-04-20 | A kind of flexible mineral insulation cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107068260A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202887805U (en) * | 2012-10-10 | 2013-04-17 | 河南华泰特种电缆有限公司 | High temperature and corrosion resistant mineral compound insulated fireproof cable |
| CN205282143U (en) * | 2016-01-18 | 2016-06-01 | 明达线缆集团有限公司 | Fire -retardant fireproof cable of flexible inorganic mineral insulation low smoke and zero halogen |
| CN205881507U (en) * | 2016-06-24 | 2017-01-11 | 武汉宏联电线电缆有限公司 | Insulating fireproof cable of flexible mineral substance of high strength |
| CN206774272U (en) * | 2017-04-20 | 2017-12-19 | 苏州闪联高压电器有限公司 | A kind of flexible mineral insulation cable |
| CN109036683A (en) * | 2018-08-22 | 2018-12-18 | 安徽明星电缆有限公司 | A kind of inorganic mineral insulation flexible fire-proof cable |
-
2017
- 2017-04-20 CN CN201710259599.4A patent/CN107068260A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202887805U (en) * | 2012-10-10 | 2013-04-17 | 河南华泰特种电缆有限公司 | High temperature and corrosion resistant mineral compound insulated fireproof cable |
| CN205282143U (en) * | 2016-01-18 | 2016-06-01 | 明达线缆集团有限公司 | Fire -retardant fireproof cable of flexible inorganic mineral insulation low smoke and zero halogen |
| CN205881507U (en) * | 2016-06-24 | 2017-01-11 | 武汉宏联电线电缆有限公司 | Insulating fireproof cable of flexible mineral substance of high strength |
| CN206774272U (en) * | 2017-04-20 | 2017-12-19 | 苏州闪联高压电器有限公司 | A kind of flexible mineral insulation cable |
| CN109036683A (en) * | 2018-08-22 | 2018-12-18 | 安徽明星电缆有限公司 | A kind of inorganic mineral insulation flexible fire-proof cable |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |
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| RJ01 | Rejection of invention patent application after publication |