CN202871392U - Environmental-friendly and cleaning type high-voltage flame-resistant power cable - Google Patents
Environmental-friendly and cleaning type high-voltage flame-resistant power cable Download PDFInfo
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- CN202871392U CN202871392U CN 201220506273 CN201220506273U CN202871392U CN 202871392 U CN202871392 U CN 202871392U CN 201220506273 CN201220506273 CN 201220506273 CN 201220506273 U CN201220506273 U CN 201220506273U CN 202871392 U CN202871392 U CN 202871392U
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Abstract
Disclosed in the utility model is an environmental-friendly and cleaning type high-voltage flame-resistant power cable that comprises cable cores, a belting layer, a flame retardant coating and an outer protection layer. The belting layer is wrapped on the cable cores and fillers are arranged between the belting layer and the cable cores; the flame retardant coating is wrapped on the belting layer and the outer protection layer is wrapped on the flame retardant coating. Besides, the cable cores are formed by copper conductors, three-layer co-extrusion cross-linked insulation shielding layers and metal shielding layers; the three-layer co-extrusion cross-linked insulation shielding layers are wrapped on the copper conductors; and the metal shielding layers are wrapped on the three-layer co-extrusion cross-linked insulation shielding layers. Besides, the flame retardant coating is a ceramic silicone rubber flame retardant coating. According to the utility model, the power cable has advantages of simple structure, low production cost and good fire resistance. A hard housing is formed by ablation of high-temperature flames, thereby preventing the cable from being burned out and avoiding the situation that the flame retardant coating is punctured under the high voltage. Therefore, the security and smoothness of communication and power under the circumstances of fire disaster occurrence can be guaranteed.
Description
Technical field
The utility model relates to fire-resistant high voltage power cable technical field, relates in particular to a kind of environment friendly and clean type high pressure fireproof power cable.
Background technology
In the last few years, propelling along with urbanization and urban planning and construction, cable more options buried-pipe laying mode more in the transformation of urban distribution network and when building, the sharp increase of urban population, skyscraper, the hotel, large supermarket, hospital, the station, the airport constantly increases, subway, the construction of tunnel traffic, and large-scale Public Physical Education, the public place of entertainment, the increase of public transit facility, fire-fighting, the importance of fire safety shows especially out, how in the situation that breaking out of fire, ensure within a certain period of time the unimpeded of electric power and communication, win to greatest extent valuable rescue time, reduce personnel's injures and deaths and the loss of lives and properties and become people's problem in the urgent need to address.
At present, the fire-resisting cable that domestic and international common employing magnesium oxide mineral fire-proof insulation cable and mica tape twine goes to solve the above problems, but magnesium oxide mineral fire-proof insulation cable needs special manufacturing and processing equipment, material price is expensive, fund input is large, the production and processing difficulty, and inconvenience is laid and is installed and used in transportation, practical application is subjected to restriction to a certain extent, is difficult to extensive popularizing and uses.And the fire-resisting cable that mica tape twines is owing to needing in process of production multi-lay winding, add the process conditions restriction, easily cause overlapping the slot place defective to occur, and mica tape meeting embrittlement after burning, easily come off, cause fire-resistant weak effect, be difficult to ensure safe and smooth under fire condition of communication, electric power.
Simultaneously, adopt the flame retardant coating insulation effect of the made high-tension cable of magnesium oxide mineral and mica tape bad, under high pressure can be breakdown, thus damage inner insulating barrier, finally cause short circuit, do not have fire-resistant effect.
The utility model content
Technical problem to be solved in the utility model provides a kind of environment friendly and clean type high pressure fireproof power cable, it is simple in structure, not only low production cost but also fire resistance are good, under the ablation of thermal-flame, form hard housing, to prevent that cable is burned also can avoid occurring under high pressure breakdown situation of flame retardant coating simultaneously, ensured safe and smooth under fire condition of communication, electric power.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model content is specific as follows:
A kind of environment friendly and clean type high pressure fireproof power cable, it comprises cable core, belting layer, flame retardant coating and outer jacket; Described belting layer wraps up described cable core, and also is provided with filler between described belting layer and cable core; Described flame retardant coating is coated on the described belting layer; Described outer jacket is coated on the described flame retardant coating; Described cable core is comprised of copper conductor, three-layer co-extruded cross-linking insulation screen and metal screen layer; Described three-layer co-extruded cross-linking insulation screen is coated on the described copper conductor; Described metal screen layer is coated on the described three-layer co-extruded cross-linking insulation screen; Described flame retardant coating is ceramic silicon rubber flame retardant coating.
Environment friendly and clean type high pressure fireproof power cable of the present utility model is owing to having used ceramic silicon rubber flame retardant coating, not only with low cost, and under the ablation of flame, namely begin to sinter into the isolation layer of hard ceramic-like housing behind burning 1 ~ 2min, the cable that burns away that not only can effectively stop flame, fire resistance is good, but also can avoid occurring under high pressure breakdown situation of flame retardant coating, has ensured safe and smooth under fire condition of communication, electric power.
Preferably, described three-layer co-extruded cross-linking insulation screen is comprised of conductor shield, crosslinked polyetylene insulated layer and insulation screen; Described conductor shield is coated on the described copper conductor; Described crosslinked polyetylene insulated layer is coated on the described conductor shield; Described insulation screen is coated on the described crosslinked polyetylene insulated layer; Described metal screen layer is coated on the described insulation screen.
Preferably, the nominal thickness of described conductor shield is 0.7mm; The nominal thickness of described insulation screen is 0.8mm; The nominal thickness of described crosslinked polyetylene insulated layer is 4.5mm.
Preferably, the external diameter of described cable is 35:1 with the ratio of the thickness of described ceramic silicon rubber flame retardant coating.
Preferably, described metal screen layer is the copper strip shielding layer.
Preferably, the quantity of described cable core is three.
For environmental protection, the smog that cable is produced in by the flame combustion 2 ~ 3min in early stage is nontoxic, Halogen, but also can play anti-effect of pressing protection, the effectively cost made of control cables and the difficulty that reduces cable laying, preferably, described outer jacket is metal armouring associating low smoke, zero halogen outer jacket; Described metal armouring associating low smoke, zero halogen outer jacket comprises low smoke, zero halogen polyolefin isolation jacket layer, zinc-plated or paint steel band armour, low smoke, zero halogen external sheath layer; Described low smoke, zero halogen polyolefin isolation jacket layer is coated on the described ceramic silicon rubber flame retardant coating; Described zinc-plated or japanning steel band armour is coated on the described low smoke, zero halogen polyolefin isolation jacket layer; Described low smoke, zero halogen external sheath layer is coated on the described zinc-plated or japanning steel band armour.Wherein, low smoke, zero halogen external sheath layer and low smoke, zero halogen polyolefin isolation jacket layer play environmental-protection function; make cable in the flame combustion 2 ~ 3min in early stage, produce smog nontoxic, Halogen; and zinc-plated or japanning steel band armour just plays anti-effect of pressing protection, effectively the cost made of control cables and the difficulty that reduces cable laying.
In order further to improve the fire resistance of cable, the assurance cable can be given up smoking after by flame combustion 2 ~ 3min fully, and preferably, described belting layer is ceramic silastic fabric belting layer.
Preferably, the thickness of described ceramic silastic fabric belting layer is 0.2mm.
In order to improve the roundness of cable, laying of convenient cable accelerated to give up smoking simultaneously, and preferably, described filler is the low smoke, zero halogen filler.
Need to prove, ceramic silicon rubber is to add white carbon, silicone oil and other auxiliary agent in methyl silicone rubber, add vulcanizing agent through after mixing in mill, then pass through mold pressing, extrude making articles, pass through again high temperature vulcanized, possessed nontoxic, tasteless, high-low temperature resistant, anti-ozone aging, electrical insulation capability that anti-marquis is aging, good, possessed simultaneously the good processing characteristics of common high temperature silicon rubber.
Compared with prior art, the utility model has produced following beneficial effect:
Environment friendly and clean type high pressure fireproof power cable of the present utility model is owing to having used ceramic silicon rubber flame retardant coating, not only with low cost, and under the ablation of flame, namely begin to sinter into the isolation layer of hard ceramic-like housing behind burning 1 ~ 2min, the cable that burns away that not only can effectively stop flame, fire resistance is good, but also can avoid occurring under high pressure breakdown situation of flame retardant coating, has ensured safe and smooth under fire condition of communication, electric power.And; adopt metal armouring associating low smoke, zero halogen outer jacket, not only environmental protection, the smog that cable is produced in by the flame combustion 2 ~ 3min in early stage is nontoxic, Halogen; prevent pressing the effect of protecting but also can play, effectively the difficulty of the cost of control cables manufacturing and reduction cable laying.Simultaneously, adopt ceramic silastic fabric belting layer, further improve the fire resistance of cable, the assurance cable can be given up smoking after by flame combustion 2 ~ 3min fully.And the low smoke, zero halogen filler is filled between ceramic silastic fabric belting layer and the cable core, not only can improve the roundness of cable, the laying of convenient cable, but also can accelerate to give up smoking.
The utility model will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the more preferably structural representation of embodiment of environment friendly and clean type high pressure fireproof power cable of the present utility model.
Wherein, 1, cable core; 11, copper conductor; 12, conductor shield; 13, crosslinked polyetylene insulated layer; 14, insulation screen; 15, metal screen layer; 2, filler; 3, belting layer; 4, flame retardant coating; 5, outer jacket; 51, low smoke, zero halogen polyolefin isolation jacket layer; 52, zinc-plated or japanning steel band armour; 53, low smoke, zero halogen external sheath layer.
Embodiment
As shown in Figure 1, environment friendly and clean type high pressure fireproof power cable of the present utility model, it comprises cable core 1, belting layer 3, flame retardant coating 4 and outer jacket 5; The described cable core 1 of described belting layer 3 parcels, and between described belting layer 3 and cable core 1, also be provided with filler 2; Described flame retardant coating 4 is coated on the described belting layer 3; Described outer jacket 5 is coated on the described flame retardant coating 4; Described cable core 1 is comprised of copper conductor 11, three-layer co-extruded cross-linking insulation screen and metal screen layer 15; Described three-layer co-extruded cross-linking insulation screen is coated on the described copper conductor 11; Described metal screen layer 15 is coated on the described three-layer co-extruded cross-linking insulation screen; Described flame retardant coating 4 is ceramic silicon rubber flame retardant coating.
Environment friendly and clean type high pressure fireproof power cable of the present utility model is owing to having used ceramic silicon rubber flame retardant coating, not only with low cost, and under the ablation of flame, namely begin to sinter into the isolation layer of hard ceramic-like housing behind burning 1 ~ 2min, the cable that burns away that not only can effectively stop flame, fire resistance is good, but also can avoid occurring under high pressure breakdown situation of flame retardant coating, has ensured safe and smooth under fire condition of communication, electric power.
Particularly, described three-layer co-extruded cross-linking insulation screen is comprised of conductor shield 12, crosslinked polyetylene insulated layer 13 and insulation screen 14; Described conductor shield 12 is coated on the described copper conductor 11; Described crosslinked polyetylene insulated layer 13 is coated on the described conductor shield 12; Described insulation screen 14 is coated on the described crosslinked polyetylene insulated layer 13; Described metal screen layer 15 is coated on the described insulation screen 14.
Particularly, the nominal thickness of described conductor shield 12 is 0.7mm; The nominal thickness of described insulation screen 14 is 0.8mm; The nominal thickness of described crosslinked polyetylene insulated layer 13 is 4.5mm.
Particularly, the external diameter of described cable is 35:1 with the ratio of the thickness of described ceramic silicon rubber flame retardant coating.
Particularly, described metal screen layer 15 is the copper strip shielding layer.
Particularly, the quantity of described cable core 1 is three.
For environmental protection, the smog that cable is produced in by the flame combustion 2 ~ 3min in early stage is nontoxic, Halogen, but also can play anti-effect of pressing protection, the effectively cost made of control cables and the difficulty that reduces cable laying, particularly, described outer jacket 5 is metal armouring associating low smoke, zero halogen outer jacket; Described metal armouring associating low smoke, zero halogen outer jacket comprises low smoke, zero halogen polyolefin isolation jacket layer 51, zinc-plated or paint steel band armour 52, low smoke, zero halogen external sheath layer 53; Described low smoke, zero halogen polyolefin isolation jacket layer 51 is coated on the described ceramic silicon rubber flame retardant coating; Described zinc-plated or japanning steel band armour 52 is coated on the described low smoke, zero halogen polyolefin isolation jacket layer 51; Described low smoke, zero halogen external sheath layer 53 is coated on the described zinc-plated or japanning steel band armour 52.Wherein, low smoke, zero halogen external sheath layer 53 and low smoke, zero halogen polyolefin isolation jacket layer 51 play environmental-protection function; make cable in the flame combustion 2 ~ 3min in early stage, produce smog nontoxic, Halogen; and zinc-plated or japanning steel band armour 52 just plays anti-effect of pressing protection, effectively the cost made of control cables and the difficulty that reduces cable laying.
In order further to improve the fire resistance of cable, the assurance cable can be given up smoking after by flame combustion 2 ~ 3min fully, and particularly, described belting layer 3 is ceramic silastic fabric belting layer.
Particularly, the thickness of described ceramic silastic fabric belting layer is 0.2mm.
In order to improve the roundness of cable, laying of convenient cable accelerated to give up smoking simultaneously, and particularly, described filler 2 is the low smoke, zero halogen filler.
Need to prove, ceramic silicon rubber is to add white carbon, silicone oil and other auxiliary agent in methyl silicone rubber, add vulcanizing agent through after mixing in mill, then pass through mold pressing, extrude making articles, pass through again high temperature vulcanized, possessed nontoxic, tasteless, high-low temperature resistant, anti-ozone aging, electrical insulation capability that anti-marquis is aging, good, possessed simultaneously the good processing characteristics of common high temperature silicon rubber.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and distortion should belong within the protection range of the utility model claim all.
Claims (10)
1. environment friendly and clean type high pressure fireproof power cable, it is characterized in that: it comprises cable core, belting layer, flame retardant coating and outer jacket; Described belting layer wraps up described cable core, and also is provided with filler between described belting layer and cable core; Described flame retardant coating is coated on the described belting layer; Described outer jacket is coated on the described flame retardant coating; Described cable core is comprised of copper conductor, three-layer co-extruded cross-linking insulation screen and metal screen layer; Described three-layer co-extruded cross-linking insulation screen is coated on the described copper conductor; Described metal screen layer is coated on the described three-layer co-extruded cross-linking insulation screen; Described flame retardant coating is ceramic silicon rubber flame retardant coating.
2. environment friendly and clean type high pressure fireproof power cable as claimed in claim 1 is characterized in that: described three-layer co-extruded cross-linking insulation screen is comprised of conductor shield, crosslinked polyetylene insulated layer and insulation screen; Described conductor shield is coated on the described copper conductor; Described crosslinked polyetylene insulated layer is coated on the described conductor shield; Described insulation screen is coated on the described crosslinked polyetylene insulated layer; Described metal screen layer is coated on the described insulation screen.
3. environment friendly and clean type high pressure fireproof power cable as claimed in claim 2, it is characterized in that: the nominal thickness of described conductor shield is 0.7mm; The nominal thickness of described insulation screen is 0.8mm; The nominal thickness of described crosslinked polyetylene insulated layer is 4.5mm.
4. environment friendly and clean type high pressure fireproof power cable as claimed in claim 1, it is characterized in that: the external diameter of described cable is 35:1 with the ratio of the thickness of described ceramic silicon rubber flame retardant coating.
5. environment friendly and clean type high pressure fireproof power cable as claimed in claim 1, it is characterized in that: described metal screen layer is the copper strip shielding layer.
6. environment friendly and clean type high pressure fireproof power cable as claimed in claim 1, it is characterized in that: the quantity of described cable core is three.
7. such as any one described environment friendly and clean type high pressure fireproof power cable of claim 1-6, it is characterized in that: described outer jacket is metal armouring associating low smoke, zero halogen outer jacket; Described metal armouring associating low smoke, zero halogen outer jacket comprises low smoke, zero halogen polyolefin isolation jacket layer, zinc-plated or paint steel band armour, low smoke, zero halogen external sheath layer; Described low smoke, zero halogen polyolefin isolation jacket layer is coated on the described ceramic silicon rubber flame retardant coating; Described zinc-plated or japanning steel band armour is coated on the described low smoke, zero halogen polyolefin isolation jacket layer; Described low smoke, zero halogen external sheath layer is coated on the described zinc-plated or japanning steel band armour.
8. environment friendly and clean type high pressure fireproof power cable as claimed in claim 7, it is characterized in that: described belting layer is ceramic silastic fabric belting layer.
9. environment friendly and clean type high pressure fireproof power cable as claimed in claim 8, it is characterized in that: the thickness of described ceramic silastic fabric belting layer is 0.2mm.
10. environment friendly and clean type high pressure fireproof power cable as claimed in claim 8, it is characterized in that: described filler is the low smoke, zero halogen filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220506273 CN202871392U (en) | 2012-09-28 | 2012-09-28 | Environmental-friendly and cleaning type high-voltage flame-resistant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220506273 CN202871392U (en) | 2012-09-28 | 2012-09-28 | Environmental-friendly and cleaning type high-voltage flame-resistant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202871392U true CN202871392U (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220506273 Expired - Lifetime CN202871392U (en) | 2012-09-28 | 2012-09-28 | Environmental-friendly and cleaning type high-voltage flame-resistant power cable |
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| CN (1) | CN202871392U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943240A (en) * | 2014-03-25 | 2014-07-23 | 安徽华峰电缆集团有限公司 | Low-smoke zero-halogen fireproof torsion resistant industrial cable |
| CN104078123A (en) * | 2014-06-10 | 2014-10-01 | 辽宁宝林集团大连金州电缆有限公司 | Environment-friendly double-shielded low-voltage fire-resistant compound insulating high-flame-retardant flexible cable |
| CN105405524A (en) * | 2015-12-22 | 2016-03-16 | 上海朗达电缆（集团）有限公司 | Fire-resistant optical fiber composite medium-voltage cable and manufacturing process of fire-resistant optical fiber composite medium-voltage cable |
| CN108806856A (en) * | 2018-07-21 | 2018-11-13 | 江苏东强股份有限公司 | Efficient fire resisting heat dissipation cable |
-
2012
- 2012-09-28 CN CN 201220506273 patent/CN202871392U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943240A (en) * | 2014-03-25 | 2014-07-23 | 安徽华峰电缆集团有限公司 | Low-smoke zero-halogen fireproof torsion resistant industrial cable |
| CN104078123A (en) * | 2014-06-10 | 2014-10-01 | 辽宁宝林集团大连金州电缆有限公司 | Environment-friendly double-shielded low-voltage fire-resistant compound insulating high-flame-retardant flexible cable |
| CN105405524A (en) * | 2015-12-22 | 2016-03-16 | 上海朗达电缆（集团）有限公司 | Fire-resistant optical fiber composite medium-voltage cable and manufacturing process of fire-resistant optical fiber composite medium-voltage cable |
| CN105405524B (en) * | 2015-12-22 | 2018-03-16 | 上海朗达电缆（集团）有限公司 | A kind of fire resisting optical fiber composite medium-pressure cable and its manufacture craft |
| CN108806856A (en) * | 2018-07-21 | 2018-11-13 | 江苏东强股份有限公司 | Efficient fire resisting heat dissipation cable |
| CN108806856B (en) * | 2018-07-21 | 2023-11-17 | 江苏东强股份有限公司 | High-efficiency fire-resistant heat-dissipation cable |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |
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| CX01 | Expiry of patent term |