CN104319000B - A kind of waterproof fireproofing insulated cable - Google Patents

A kind of waterproof fireproofing insulated cable Download PDF

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Publication number
CN104319000B
CN104319000B CN201410534444.3A CN201410534444A CN104319000B CN 104319000 B CN104319000 B CN 104319000B CN 201410534444 A CN201410534444 A CN 201410534444A CN 104319000 B CN104319000 B CN 104319000B
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China
Prior art keywords
layer
insulating barrier
waterproof
cable
coated
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CN201410534444.3A
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CN104319000A (en
Inventor
谢成荣
张仁愉
尹志浩
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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
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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 CN201410534444.3A priority Critical patent/CN104319000B/en
Publication of CN104319000A publication Critical patent/CN104319000A/en
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Abstract

The present invention relates to a kind of cable, disclose a kind of waterproof fireproofing insulated 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, moistureproof and waterproof layer and fireprotection layer successively;The present invention uses double hyer insulation, is greatly improved the insulating properties of cable, is also additionally provided with moistureproof and waterproof layer and fireprotection layer, is greatly improved the security performance of cable.

Description

A kind of waterproof fireproofing insulated cable
Technical field
The present invention relates to a kind of cable, particularly relate to a kind of waterproof fireproofing insulated 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 Water fire-proof insulation cable.
In order to solve above-mentioned technical problem, the present invention is addressed by following technical proposals:
A kind of waterproof fireproofing insulated cable, at least conductor, conductor is coated with the first insulating barrier, one Or several conductors being coated with the first insulating barrier are all coated in ceramic short fiber layer, the first insulating barrier and Magnesium oxide mineral insulation powder it is provided with between one insulating barrier and between the first insulating barrier and ceramic short fiber layer; Copper sheath, the second insulating barrier, moistureproof and waterproof layer and fireprotection layer it is coated with successively outside ceramic short fiber layer;Anti- Tide waterproof layer following raw materials according by weight percentage is made: 20%-40% base polyurethane prepolymer for use as, 5%-10% are without Jiao Oil and 5%-10% Colophonium, 10%-30% polyamide wax, 20%-40% water-absorbent resin powder and 5%-10% bis- Isooctyl thioglycolate dioctyltin;Fireprotection layer following raw materials according by weight percentage is made: 30%-50% Inorganic base material, the environmental protection fire retarding agent of 20%-40%, 10%-30% organic polymer and 5%-10% fire prevention pigment, Environmental protection fire retarding agent is mixed by cobalt aluminate, the artificial mica of 35%, the magnesium chloride of 10%, the potassium chloride of 25% of 30% Conjunction forms, and fire prevention pigment is boron system or aluminum series pigments.
Difference is not only glued the well adapting to property of surface of base material by base polyurethane prepolymer for use as, and self is cohesion Can be relatively big, have at a relatively high intensity, it is possible to solidify after dampness contact in atmosphere, have the most waterproof, Humidity resistance.Polyamide wax has thixotropic property, resist sagging ability and the anti-settling ability of excellence, also has There are extraordinary intensity and thermostability, excellent storage stability.Dimercapto 2-ethyl hexyl ethanoate dioctyltin Heat stability and the transparency are fabulous, and also have nontoxic, environmental protection characteristic.
As preferably, inorganic base material is silicate, and organic polymer is resinamines or contains halide resin.
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 be tripolycyanamide alkyd impregnating varnish, epoxy-ester insullac, polyester-imide, Polyamide composite paint.Insulating lacquer layer can improve the insulating properties of cable, simultaneously electric insulation enamelled coating and sheath Water blocking tape layer has waterproof action, extends the life-span of cable.
Due to the fact that and have employed above technical scheme that there is significant technique effect:
This cable uses with a layer insulating outside conductor, repastes a layer insulating outside the cable heart, double hyer insulation, It is greatly improved the insulating properties of cable.Additionally it is coated with one layer of fireprotection layer again outside this cable insulating barrier outside the cable heart, Fireprotection layer can play good fireproofing function, it is to avoid cable spontaneous combustion in high temperature environments, or other factors are drawn The burning risen.
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 Water damp-proof layer, 8 fireprotection layers.
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
A kind of waterproof fireproofing insulated cable, as it is shown in figure 1, include at least conductor 1, conductor 1 outer cladding 3,3 conductors being coated with the first insulating barrier 3 of the first insulating barrier are had all to be coated in ceramic short fiber layer 2, Set between first insulating barrier 3 and the first insulating barrier 3 and between the first insulating barrier 3 and ceramic short fiber layer 2 Having oxidation magnesium mineral matter insulating powder 4, ceramic short fiber layer 2 is outer is coated with copper sheath the 5, second insulating barrier successively 6, moistureproof and waterproof layer 7 and fireprotection layer 8;Moistureproof and waterproof layer 7 following raw materials according by weight percentage is made: 25% polystyrene, 25% ethyl acetate, 18% thixotropic agent, 27% water-absorbent resin powder and 5% stabilizer; Fireprotection layer 7 following raw materials according by weight percentage is made: 40% 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 3 is set outside conductor, then the second insulating barrier 6 is set outside copper sheath, insulated by two-layer Layer can be greatly increased the insulating properties of cable.Additionally fireprotection layer 8 is set outside the second insulating barrier 6, can be effective Increase fireproofing of cable performance.
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 waterproof fireproofing insulated cable in the present embodiment, it is with the difference of embodiment 1: prevent Tide waterproof layer 7 following raw materials according by weight percentage make: 30% polystyrene, 30% ethyl acetate, 10% Thixotropic agent, 20% water-absorbent resin powder and 10% stabilizer;
Fireprotection layer 8 following raw materials according by weight percentage is made, 50% inorganic base material, the environmental protection fire retarding agent of 20%, 20% organic polymer and 10% fire prevention pigment;
Embodiment 3
A kind of waterproof fireproofing insulated cable in the present embodiment, it is with the difference of embodiment 1: prevent Tide waterproof layer 7 following raw materials according by weight percentage make, 20% polystyrene, 20% ethyl acetate, 10% Thixotropic agent, 40% water-absorbent resin powder and 10% stabilizer;
Fireprotection layer 8 following raw materials according by weight percentage is made, 30% inorganic base material, the environmental protection fire retarding agent of 35%, 30% organic polymer and 5% fire prevention pigment.
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 (5)

1. a waterproof fireproofing insulated cable, including at least conductor (1), it is characterised in that: conductor (1) Being coated with the first insulating barrier (3), one or a few conductor being coated with the first insulating barrier (3) is all wrapped by In ceramic short fiber layer (2), between the first insulating barrier (3) and the first insulating barrier (3) and first exhausted Magnesium oxide mineral insulation powder (4), ceramic short fibre it is provided with between edge layer (3) and ceramic short fiber layer (2) Dimension layer (2) be coated with the most successively copper sheath (5), the second insulating barrier (6), moistureproof and waterproof layer (7) and Fireprotection layer (8);Moistureproof and waterproof layer (7) following raw materials according by weight percentage is made: poly-third second of 20%-30% Alkene, 20%-30% ethyl acetate, 10%-30% thixotropic agent, 20%-40% water-absorbent resin powder and 5%-10% Stabilizer;Fireprotection layer (8) following raw materials according by weight percentage is made: 30%-50% inorganic base material, 20%-40% Environmental protection fire retarding agent, 10%-30% organic polymer and 5%-10% prevent fires pigment, 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, pigment of preventing fires For boron system or aluminum series pigments.
A kind of waterproof fireproofing insulated cable the most according to claim 1, it is characterised in that: thixotropic agent is Polyamide wax, stabilizer is dimercapto 2-ethyl hexyl ethanoate dioctyltin.
A kind of waterproof fireproofing insulated cable the most according to claim 1, it is characterised in that: inorganic base material For silicate, organic polymer is resinamines or contains halide resin.
A kind of waterproof fireproofing insulated cable the most according to claim 1, it is characterised in that: the first insulation Layer (3) is that ceramic short fiber is wrapped or braiding or extrude and form.
A kind of waterproof fireproofing insulated cable the most according to claim 1, it is characterised in that: the second insulation Layer (6) is tripolycyanamide alkyd impregnating varnish, epoxy-ester insullac, polyester-imide or polyamide composite paint.
CN201410534444.3A 2014-10-11 2014-10-11 A kind of waterproof fireproofing insulated cable Active CN104319000B (en)

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Application Number Priority Date Filing Date Title
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CN104319000B true CN104319000B (en) 2016-08-31

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104966568A (en) * 2015-07-03 2015-10-07 成都新三电线厂 Cable apparatus capable of dissipating heat in a highly efficient manner, preventing fires, prevented from being bitten by mice and having a temporary insulation function
CN105139950A (en) * 2015-07-03 2015-12-09 成都新三电线厂 Rat bite resistant cable device with efficient heat dissipation and fire prevention function
CN105350324A (en) * 2015-12-07 2016-02-24 常熟市永新印染有限公司 Finishing technology of blended fabric
CN110041628B (en) * 2019-05-23 2021-07-27 内蒙古仁达特种电缆有限公司 High-efficient waterproof cable
CN110047622B (en) * 2019-05-23 2020-08-11 湖南三湘电线电缆有限责任公司 High-efficient waterproof power cable
CN111048237B (en) * 2019-12-31 2020-06-16 镇江市华成电子器材有限公司 Low-smoke insulated power line and manufacturing method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62180908A (en) * 1986-01-31 1987-08-08 タツタ電線株式会社 Incombustible wire
CN2809814Y (en) * 2005-06-26 2006-08-23 江苏新远程电缆有限公司 Mineral insulated cable
CN201387747Y (en) * 2009-04-14 2010-01-20 江苏中兴电缆有限公司 Mineral insulated cable with copper cores and jackets
CN202887832U (en) * 2012-09-29 2013-04-17 无锡荣诚电工材料有限公司 Mineral insulated cable
CN202976899U (en) * 2012-12-20 2013-06-05 安徽华联电缆集团有限公司 Cold-resistant shock resistant environment-friendly high-strength vitrified silica gel fireproof cable

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62180908A (en) * 1986-01-31 1987-08-08 タツタ電線株式会社 Incombustible wire
CN2809814Y (en) * 2005-06-26 2006-08-23 江苏新远程电缆有限公司 Mineral insulated cable
CN201387747Y (en) * 2009-04-14 2010-01-20 江苏中兴电缆有限公司 Mineral insulated cable with copper cores and jackets
CN202887832U (en) * 2012-09-29 2013-04-17 无锡荣诚电工材料有限公司 Mineral insulated cable
CN202976899U (en) * 2012-12-20 2013-06-05 安徽华联电缆集团有限公司 Cold-resistant shock resistant environment-friendly high-strength vitrified silica gel fireproof cable

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