CN104319000A - Fireproof and waterproof insulating cable - Google Patents
Fireproof and waterproof insulating cable Download PDFInfo
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- CN104319000A CN104319000A CN201410534444.3A CN201410534444A CN104319000A CN 104319000 A CN104319000 A CN 104319000A CN 201410534444 A CN201410534444 A CN 201410534444A CN 104319000 A CN104319000 A CN 104319000A
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Abstract
The invention relates to a cable and discloses a fireproof and waterproof insulating cable. The fireproof and waterproof insulating cable comprises at least one conductor which is covered with a first insulating layer; one or more conductors covered with the first insulating layers are covered with a ceramic short fiber layer; magnesium oxide mineral insulating powder is arranged between the first insulating layers and between each first insulating layer and the ceramic short fiber layer; the ceramic short fiber layer is orderly covered with a copper sheath, a second insulating layer, a moisture-proof and waterproof layer and a fireproof layer. The fireproof and waterproof insulating cable is provided with two insulating layers so that the insulation property of the cable can be greatly improved; besides, the moisture-proof and waterproof layer and the fireproof layer are additionally arranged so that the safety performance of the cable can be greatly improved.
Description
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 equipped with mineral insulation, but independent mineral insulation can cause the electric property of cable poor, institute's voltage withstand class of bearing is on the low side, thus causes electrical security and use applicability poor.Existing cable seldom arranges fireprotection layer in addition, in high temperature environments, is easy to produce spontaneous combustion, has 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, provide a kind of waterproof fireproofing insulated cable.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
A kind of waterproof fireproofing insulated cable, at least one 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, is provided with magnesium oxide mineral insulation powder between the first insulating barrier and the first insulating barrier and between the first insulating barrier and ceramic short fiber layer; Ceramic short fiber layer is coated with copper sheath, the second insulating barrier, moistureproof and waterproof layer and fireprotection layer outward successively; Moistureproof and waterproof layer following raw materials according is by weight percentage made: 20%-40% base polyurethane prepolymer for use as, 5%-10% are without tar and 5%-10% pitch, 10%-30% polyamide wax, 20%-40% water-absorbent resin powder and 5%-10% dimercapto 2-ethyl hexyl ethanoate dioctyltin; Fireprotection layer following raw materials according is by weight percentage made: the environmental protection fire retarding agent of 30%-50% inorganic base material, 20%-40%, 10%-30% organic polymer and 5%-10% prevent fires pigment.
Base polyurethane prepolymer for use as is not only had good adaptability to difference by the surface of gluing base material, and self cohesive energy is comparatively large, has quite high intensity, can contact Post RDBMS by moisture in atmosphere, have good waterproof, humidity resistance.Polyamide wax has excellent thixotropic property, resist sagging ability and anti-settling ability, also has and has extraordinary intensity and thermal endurance, excellent storage stability.Thermal stability and the transparency of dimercapto 2-ethyl hexyl ethanoate dioctyltin are fabulous, and also have nontoxic, environmental protection characteristic.
As preferably, inorganic base material silicate; Environmental protection fire retarding agent is mixed by the cobalt aluminate of 30%, artificial mica, the magnesium chloride of 10%, the potassium chloride of 25% of 35%, and organic polymer is resinamines or halogen-containing resin; Fire prevention pigment is boron system or aluminium series pigments.
As preferably, the first insulating barrier is that the wrapped or braiding of ceramic short fiber or extrude forms.Ceramic short fiber material insulation property is good, electric pressure is high, effectively changes the withstand voltage properties of cable.
As preferably, the second insulating barrier is insulating lacquer layer, is specially melamine alkyd impregnating varnish, epoxy-ester insulating varnish or polyester-imide or polyamide composite paint.Insulating lacquer layer can improve the insulating properties of cable, and electric insulation enamelled coating and sheath water blocking tape layer have waterproof action simultaneously, extend the life-span of cable.
The present invention, owing to have employed above technical scheme, has significant technique effect:
This cable adopts with a layer insulating outward at conductor, is coated with a layer insulating more outward, double hyer insulation at the cable heart, greatly improves the insulation property of cable.The outer coated one deck fireprotection layer again of the insulating barrier of this cable outside the cable heart in addition, fireprotection layer can play good fireproofing function, avoids cable spontaneous combustion in high temperature environments, or the burning that other factors cause.
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 refers to is as follows: 1-conductor, 2-ceramic short fiber layer, the 3-the first insulating barrier, 4-magnesium oxide mineral insulation powder, 5-copper sheath, the 6-the second insulating barrier, 7-waterproof and dampproof layer, 8-fireprotection layer.
Embodiment
For understanding content of the present invention further, 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 shown in Figure 1, comprise at least one conductor 1, conductor 1 is coated with the first insulating barrier 3,3 conductors being coated with the first insulating barrier 3 are all coated in ceramic short fiber layer 2, between first insulating barrier 3 and the first insulating barrier 3 and be provided with magnesium oxide mineral insulation powder 4 between the first insulating barrier 3 and ceramic short fiber layer 2, ceramic short fiber layer 2 is outer is coated with copper sheath 5, second insulating barrier 6, moistureproof and waterproof layer 7 and fireprotection layer 8 successively; Moistureproof and waterproof layer 7 following raw materials according is by weight percentage made: 25% poly-third ethene, 25% ethyl acetate, 18% thixotropic agent, 27% water-absorbent resin powder and 5% stabilizer; Fireprotection layer 7 following raw materials according is by weight percentage made: 40% inorganic base material, 30% environmental protection fire retarding agent, 20% organic polymer and 10% fire prevention pigment.
Adopt ceramic short fiber layer coated wire, ceramic short fiber material insulation property is good, electric pressure is high, effectively changes the withstand voltage properties of cable; Then be enclosed within outside ceramic short fiber layer with copper sheath, cable can be made to have high wear-resistant and tear resistance.The second insulating barrier 6 is coated again outside copper sheath 5, second insulating barrier 6 is insulating lacquer layer, and be specially melamine alkyd impregnating varnish, insulating lacquer layer can improve the insulating properties of cable, 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, greatly can be increased the insulating properties of cable by dielectric layers.In addition fireprotection layer 8 is set outside the second insulating barrier 6, can effectively increases fireproofing of cable performance.
The inorganic base material that fireprotection layer 7 adopts is silicate, and inorganic base material self belongs to flame retardancy matter, meets fire and produces endothermic reaction, and can form inorganic glaze shape body, play the effect of isolated air.Environmental protection fire retarding agent is mixed by the cobalt aluminate of 30%, artificial mica, the magnesium chloride of 10%, the potassium chloride of 25% of 35%, environmental protection fire retarding agent heat produces endothermic effect, form non-volatile cover layer, decompose and release non-flammable gases, smoke elimination and free chain reaction blocking agent; Organic polymer is resinamines, and organic polymer self oxygen index is high, belongs to firing-difficult matter matter, and can discharge non-flammable gases or fire extinguishing property gas, or decomposes the fire-retardant active group of releasing; 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, the difference of itself and embodiment 1 is: moistureproof and waterproof layer 7 following raw materials according is by weight percentage made: 30% poly-third ethene, 30% ethyl acetate, 10% thixotropic agent, 20% water-absorbent resin powder and 10% stabilizer;
Fireprotection layer 8 following raw materials according is by weight percentage made, 50% inorganic base material, 20% environmental protection fire retarding agent, 20% organic polymer and 10% fire prevention pigment;
Embodiment 3
A kind of waterproof fireproofing insulated cable in the present embodiment, the difference of itself and embodiment 1 is: moistureproof and waterproof layer 7 following raw materials according is by weight percentage made, 20% poly-third ethene, 20% ethyl acetate, 10% thixotropic agent, 40% water-absorbent resin powder and 10% stabilizer;
Fireprotection layer 8 following raw materials according is by weight percentage made, 30% inorganic base material, 35% environmental protection fire retarding agent, 30% organic polymer and 5% fire prevention pigment.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (5)
1. a waterproof fireproofing insulated cable, at least one conductor (1), it is characterized in that: conductor (1) is coated with the first insulating barrier (3), one or a few conductor being coated with the first insulating barrier (3) is all coated in ceramic short fiber layer (2), magnesium oxide mineral insulation powder (4) is provided with between first insulating barrier (3) and the first insulating barrier (3) and between the first insulating barrier (3) and ceramic short fiber layer (2), ceramic short fiber layer (2) is coated with copper sheath (5) outward successively, second insulating barrier (6), moistureproof and waterproof layer (7) and fireprotection layer (8), moistureproof and waterproof layer (7) following raw materials according is by weight percentage made: 20%-30% gathers the third ethene, 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 is by weight percentage made: the environmental protection fire retarding agent of 30%-50% inorganic base material, 20%-40%, 10%-30% organic polymer and 5%-10% prevent fires pigment.
2. a kind of waterproof fireproofing insulated cable according to claim 1, is characterized in that: thixotropic agent is polyamide wax, stabilizer is dimercapto 2-ethyl hexyl ethanoate dioctyltin.
3. a kind of waterproof fireproofing insulated cable according to claim 1, is characterized in that: inorganic base material silicate; Environmental protection fire retarding agent is mixed by the cobalt aluminate of 30%, artificial mica, the magnesium chloride of 10%, the potassium chloride of 25% of 35%, and organic polymer is resinamines or halogen-containing resin; Fire prevention pigment is boron system or aluminium series pigments.
4. a kind of waterproof fireproofing insulated cable according to claim 1, is characterized in that: the first insulating barrier (3) is for ceramic short fiber is wrapped or braiding or extrude and form.
5. a kind of waterproof fireproofing insulated cable according to claim 1, is characterized in that: the second insulating barrier (6) is insulating lacquer layer, is specially melamine alkyd impregnating varnish, epoxy-ester insulating varnish or polyester-imide or polyamide composite paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410534444.3A CN104319000B (en) | 2014-10-11 | 2014-10-11 | A kind of waterproof fireproofing insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410534444.3A CN104319000B (en) | 2014-10-11 | 2014-10-11 | A kind of waterproof fireproofing insulated cable |
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| Publication Number | Publication Date |
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| CN104319000A true CN104319000A (en) | 2015-01-28 |
| CN104319000B CN104319000B (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410534444.3A Active CN104319000B (en) | 2014-10-11 | 2014-10-11 | A kind of waterproof fireproofing insulated cable |
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Cited By (6)
| 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 |
| CN110047622A (en) * | 2019-05-23 | 2019-07-23 | 山东承坤信息科技有限公司 | A kind of high-effective water-proof power cable |
| CN110041628A (en) * | 2019-05-23 | 2019-07-23 | 山东承坤信息科技有限公司 | A kind of high-effective water-proof cable |
| CN111048237A (en) * | 2019-12-31 | 2020-04-21 | 镇江市华成电子器材有限公司 | Low-smoke insulated power line and manufacturing method thereof |
Citations (5)
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| 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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2014
- 2014-10-11 CN CN201410534444.3A patent/CN104319000B/en active Active
Patent Citations (5)
| 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 |
Cited By (8)
| 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 |
| CN110047622A (en) * | 2019-05-23 | 2019-07-23 | 山东承坤信息科技有限公司 | A kind of high-effective water-proof power cable |
| CN110041628A (en) * | 2019-05-23 | 2019-07-23 | 山东承坤信息科技有限公司 | A kind of high-effective water-proof cable |
| 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 |
| CN111048237A (en) * | 2019-12-31 | 2020-04-21 | 镇江市华成电子器材有限公司 | Low-smoke insulated power line and manufacturing method thereof |
| 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 |
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|---|---|
| CN104319000B (en) | 2016-08-31 |
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