CN104299687B - A kind of fire-proof insulation cable - Google Patents

A kind of fire-proof insulation cable Download PDF

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Publication number
CN104299687B
CN104299687B CN201410535139.6A CN201410535139A CN104299687B CN 104299687 B CN104299687 B CN 104299687B CN 201410535139 A CN201410535139 A CN 201410535139A CN 104299687 B CN104299687 B CN 104299687B
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CN
China
Prior art keywords
insulating barrier
fire
coated
cable
layer
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Expired - Fee Related
Application number
CN201410535139.6A
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Chinese (zh)
Other versions
CN104299687A (en
Inventor
谢成荣
张仁愉
尹志浩
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.)
State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
Shaoxing Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Shengzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
Shaoxing Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Shengzhou Power Supply Co of State Grid Zhejiang Electric Power 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 State Grid Corp of China SGCC, State Grid Zhejiang Electric Power Co Ltd, Shaoxing Power Supply Co of State Grid Zhejiang Electric Power Co Ltd, Shengzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201410535139.6A priority Critical patent/CN104299687B/en
Publication of CN104299687A publication Critical patent/CN104299687A/en
Application granted granted Critical
Publication of CN104299687B publication Critical patent/CN104299687B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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  • Insulated Conductors (AREA)

Abstract

The present invention relates to a kind of cable, disclose a kind of fire-proof insulation cable.It includes at least conductor, conductor is coated with the first insulating barrier, one or a few conductor being coated with the first insulating barrier is all coated in ceramic short fiber layer, it is provided with magnesium oxide mineral insulation powder between first insulating barrier and the first insulating barrier and between the first insulating barrier and ceramic short fiber layer, outside ceramic short fiber layer, is coated with copper sheath, the second insulating barrier and fireprotection layer successively;Fireprotection layer following raw materials according by weight percentage is made: 30% 50% inorganic base materials, the environmental protection fire retarding agent of 20% 40%, 10% 30% organic polymers and 5% 10% fire prevention pigment.The present invention uses double hyer insulation, is greatly improved the insulating properties of cable, is additionally provided with another fireprotection layer, is greatly improved the security performance of cable.

Description

A kind of fire-proof insulation cable
Technical field
The present invention relates to a kind of cable, particularly relate to a kind of fire-proof insulation cable.
Background technology
At present, common copper core copper sheath mineral insulated cable is equipped with insulating barrier, but general insulating barrier is equal It is provided with mineral insulation, but the electric property that independent mineral insulation can cause cable is poor, born pressure Grade is on the low side, thus causes electrical security and use the suitability poor.The most existing cable seldom sets Put fireprotection layer, in high temperature environments, it is easy to produce spontaneous combustion, have a strong impact on cable security performance.
Summary of the invention
The present invention is directed to existing cable electrical performance and the poor problem of security performance, it is provided that Yi Zhongfang Fire insulated cable.
In order to solve above-mentioned technical problem, the present invention is addressed by following technical proposals:
A kind of fire-proof insulation cable, at least conductor, conductor is coated with the first insulating barrier, one or several Root is coated with the conductor of the first insulating barrier and is all coated in ceramic short fiber layer, the first insulating barrier and first exhausted Magnesium oxide mineral insulation powder it is provided with between edge layer and between the first insulating barrier and ceramic short fiber layer;Pottery Copper sheath, the second insulating barrier and fireprotection layer it is coated with successively outside short fiber layers;Fireprotection layer is by weight percentage Following raw materials according make: 30%-50% inorganic base material, the environmental protection fire retarding agent of 20%-40%, 10%-30% are organic Polymer and 5%-10% fire prevention pigment.
The cable heart of the present invention can include that multiple conducting wires, each wire are all coated with a layer insulating, and this makes often Can mutually insulated between root wire so that the present invention can transmit multiple power.The cable heart of the present invention is peripheral It is sequentially provided with ceramic short fiber layer, copper sheath, the second insulating barrier and fireprotection layer, ceramic short fiber layer and Two insulating layer conformations become double-layer insulating structure, thus are greatly improved the insulating properties of cable.Copper sheath makes this Invention possesses preferably corrosion resistance, and fireprotection layer allows the invention to possess preferably fire resistance property.This The fireprotection layer of invention has including inorganic base material, environmental protection fire retarding agent organic polymer and fire prevention pigment many Plant Material cladding to form, by using the proportioning provided in the present invention, it is possible to make the fireprotection layer energy of the present invention Enough being well arranged on cable surface, the fireprotection layer of the present invention is preferably also equipped with in addition to fire protecting performance except possessing Certain partiting thermal insulation performance so that it is the cable heart of the present invention can be carried out certain protection.The present invention's is anti- Fire bed will not produce environmentally harmful material when being heated or discard, particular, it is important that according to the present invention Described in the fireprotection layer that manufactures of proportioning possess original flexibility, good flexibility ensure that the present invention is just Rapid transit send and connects up.
As preferably, inorganic base material uses silicate;Environmental protection fire retarding agent by 30% cobalt aluminate, 35% artificial Muscovitum, the magnesium chloride of 10%, the potassium chloride of 25% mix, and organic polymer is resinamines or contains halogen Resin;Fire prevention pigment is boron system or aluminum series pigments.
The fireprotection layer of the present invention can also possess good mechanical resistant impact in combustion and water sprays performance, Even if this makes the present invention slight case of fire occur, fireprotection layer also is able to well protect the cable of the present invention The heart.
As preferably, the first insulating barrier is that ceramic short fiber is wrapped or braiding or extrude forms.Ceramic short fiber Material insulation property is good, electric pressure is high, effectively changes the proof voltage performance of cable.
As preferably, the second insulating barrier is insulating lacquer layer, specially tripolycyanamide alkyd impregnating varnish, epoxy-ester Insullac or polyester-imide or polyamide composite paint.Insulating lacquer layer can improve the insulating properties of cable, simultaneously Electric insulation enamelled coating and sheath water blocking tape layer have waterproof action, extend the life-span of cable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
The toponym that in accompanying drawing, each number designation is referred to is as follows: 1 conductor, 2 ceramic short fiber layers, 3 First insulating barrier, 4 magnesium oxide mineral insulation powder, 5 copper sheaths, 6 second insulating barriers, 7 prevent Fire bed.
Detailed description of the invention
For further appreciating that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
As it is shown in figure 1, be a kind of fire-proof insulation cable of the present embodiment, it includes at least conductor 1, leads Body 1 is coated with 3,3 conductors being coated with the first insulating barrier 3 of the first insulating barrier and is all coated on ceramic short In fibrous layer 2, between the first insulating barrier 3 and the first insulating barrier 3 and the first insulating barrier 3 and the short fibre of pottery Be provided with magnesium oxide mineral insulation powder 4 between dimension layer 2, ceramic short fiber layer 2 is outer be coated with successively copper sheath 5, Second insulating barrier 6 and fireprotection layer 7;Fireprotection layer 7 following raw materials according by weight percentage is made: 40% is inorganic Base material, the environmental protection fire retarding agent of 30%, 20% organic polymer and 10% fire prevention pigment.
Using ceramic short fiber layer coated wire, ceramic short fiber material insulation property is good, electric pressure is high, Effectively change the proof voltage performance of cable;Then it is enclosed within outside ceramic short fiber layer with copper sheath, can make Cable has high wear-resistant and tear resistance.Coating the second insulating barrier 6 again outside copper sheath 5, second is exhausted Edge layer 6 is insulating lacquer layer, specially tripolycyanamide alkyd impregnating varnish, and insulating lacquer layer can improve cable Insulating properties, electric insulation enamelled coating and sheath water blocking tape layer have waterproof action simultaneously, extend the life-span of cable.
First insulating barrier is set outside conductor, then the second insulating barrier is set outside copper sheath, pass through dielectric layers The insulating properties of cable can be greatly increased.Additionally fireprotection layer is set outside second layer insulating barrier, can effectively increase Add the fire protecting performance of cable.
The inorganic base material that fireprotection layer 7 uses is silicate, and inorganic base material self belongs to flame retardancy matter, meets fire and produces The raw endothermic reaction, and inorganic enamel-like body can be formed, play the effect of isolation air.Environmental protection fire retarding agent is by 30% Cobalt aluminate, the artificial mica of 35%, the magnesium chloride of 10%, the potassium chloride of 25% mix, environmental protection flame retardant Agent heat produce endothermic effect, form non-volatile cover layer, decompose to give off non-flammable gases, smoke elimination and from By base chain reaction blocker;Organic polymer is resinamines, and organic polymer self oxygen index (OI) is high, belongs to In firing-difficult matter matter, and non-flammable gases or fire extinguishing property gas can be discharged, or decompose to give off fire-retardant activity Group;Fire prevention pigment is boron series pigments, has heat resistance, and can produce flame retardancy gas with fire retardant.
Embodiment 2
A kind of fire-proof insulation cable of the present embodiment, its difference from Example 1 is: fireprotection layer 7 is pressed The following raw materials according of percentage by weight is made: 50% inorganic base material, the environmental protection fire retarding agent of 20%, 20% organic polymer Thing and 10% fire prevention pigment.
Organic polymer is containing halide resin, and the first insulating barrier 3 forms for ceramic short fiber braiding;Second is exhausted Edge layer 6 is epoxy-ester insullac paint, and fire prevention pigment is aluminum series pigments.
Embodiment 3
A kind of fire-proof insulation cable of the present embodiment, its difference from Example 1 is: fireprotection layer 7 is pressed The following raw materials according of percentage by weight is made, 30% inorganic base material, the environmental protection fire retarding agent of 35%, 30% organic polymer Thing and 5% fire prevention pigment;First insulating barrier 3 extrudes for ceramic short fiber and forms;Second insulating barrier 6 is poly- Amide composite paint.
In a word, the foregoing is only presently preferred embodiments of the present invention, all made according to scope of the present invention patent Impartial change with modify, all should belong to the covering scope of patent of the present invention.

Claims (4)

1. a fire-proof insulation cable, including at least conductor (1), it is characterised in that: conductor (1) is outward Being coated with the first insulating barrier (3), one or a few conductor being coated with the first insulating barrier (3) is all coated on In ceramic short fiber layer (2), between the first insulating barrier (3) and the first insulating barrier (3) and first insulate It is provided with magnesium oxide mineral insulation powder (4), ceramic short fiber between layer (3) and ceramic short fiber layer (2) Layer (2) is coated with copper sheath (5), the second insulating barrier (6) and fireprotection layer (7) the most successively;Fireprotection layer (7) following raw materials according by weight percentage is made: 30%-50% inorganic base material, the environmental protection flame retardant of 20%-40% Agent, 10%-30% organic polymer and 5%-10% fire prevention pigment;Environmental protection fire retarding agent by 30% cobalt aluminate, The artificial mica of 35%, the magnesium chloride of 10%, the potassium chloride of 25% mix, and organic polymer is nitrogenous tree Fat or containing halide resin;Fire prevention pigment is boron system or aluminum series pigments.
A kind of fire-proof insulation cable the most according to claim 1, it is characterised in that: inorganic base material uses Silicate.
A kind of fire-proof insulation cable the most according to claim 1, it is characterised in that: the first insulating barrier (3) Or braiding wrapped for ceramic short fiber or extrude and form.
A kind of fire-proof insulation cable the most according to claim 1, it is characterised in that: the second insulating barrier (6) For tripolycyanamide alkyd impregnating varnish, epoxy-ester insullac or polyester-imide or polyamide composite paint.
CN201410535139.6A 2014-10-11 2014-10-11 A kind of fire-proof insulation cable Expired - Fee Related CN104299687B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410535139.6A CN104299687B (en) 2014-10-11 2014-10-11 A kind of fire-proof insulation cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410535139.6A CN104299687B (en) 2014-10-11 2014-10-11 A kind of fire-proof insulation cable

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CN104299687A CN104299687A (en) 2015-01-21
CN104299687B true CN104299687B (en) 2016-07-27

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Publication number Priority date Publication date Assignee Title
CN107068261B (en) * 2017-05-27 2023-09-15 双登电缆股份有限公司 Curing isolation type flexible fireproof cable

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100406593B1 (en) * 2001-06-08 2003-11-20 제일모직주식회사 Flame Retardant Thermoplastic Resin Composition
CN103165239A (en) * 2011-12-12 2013-06-19 上海上力电线电缆有限公司 Capacity-increasing and energy-saving flexible cable used in power station
CN203260387U (en) * 2013-05-05 2013-10-30 河南科信电缆有限公司 Flexible insulating fireproof cable

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