CN201904147U - High flame-retardant fire-resistant control cable with halogen-free low smoke cross-linked polyethylene insulating tough oxygen barrier layer - Google Patents
High flame-retardant fire-resistant control cable with halogen-free low smoke cross-linked polyethylene insulating tough oxygen barrier layer Download PDFInfo
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- CN201904147U CN201904147U CN2010206560625U CN201020656062U CN201904147U CN 201904147 U CN201904147 U CN 201904147U CN 2010206560625 U CN2010206560625 U CN 2010206560625U CN 201020656062 U CN201020656062 U CN 201020656062U CN 201904147 U CN201904147 U CN 201904147U
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Abstract
The utility model discloses a high flame-retardant fire-resistant control cable with a halogen-free low smoke cross-linked polyethylene insulating tough oxygen barrier layer, which comprises an cable core, wherein the cable core is integrally defined by 2-10 cables (1); two layers of polyester strips (2) are arranged on the periphery of the cable core; a tough oxygen barrier layer (3) is arranged on the periphery of the outer layer of polyester strip (2); and two layers of low-smoke halogen-free jackets (5) are arranged on the periphery of the tough oxygen barrier layer (3). According to the high flame-retardant fire-resistant control cable, the defects that the electromechanical performance and the processing performance of the traditional flame-retardant fire-resistant control cable become poorer because the grade of the traditional flame-retardant fire-resistant control cable is low are overcome. The high flame-retardant fire-resistant control cable has the advantages of simple structure, important significance and favorable economic and social benefits and is convenient for use. The service life of products is greatly prolonged.
Description
Technical field
The utility model relates to a kind of control cable, and more particularly it is the crosslinked polyetylene insulated toughness oxygen barrier layer of an a kind of low smoke, zero halogen high flame retardant fireproof control cable.
Background technology
In recent years, along with the continuous quickening of economic construction speed, the increasing gradually of various large scale industry facilities, high-rise commercial building, hypogee and residential building quantity, the use total amount of cable is increasing, and the closeness of laying is also more and more higher.Owing to the aging electrical fire accident that causes reasons such as short circuit, spontaneous combustion to cause of cable is increased, the loss that causes is serious day by day.In the electric power system fire incident in the global range,, power cable cause the ratio of power system power supply interruption on the rise owing to catching fire.Can produce a large amount of smog and poisonous corrosive gas behind the cable fire, thereby delay the fire fighting time and aggravate fire spreading, this not only hinders fire fighting work and evacuating personnel, and can corrode instrument and equipment.Especially the sealing place of assembling for numerous personnel, as subway, hotel, exhibit halls and naval vessel etc. and be equipped with the occasion of expensive electronic equipment, this problem particular importance that just seems.
Sharp increase along with urban population, skyscraper, hotel, large supermarket, hospital, station, airport constantly increase, the construction of subway, tunnel traffic, and the increase of large-scale public physical culture, public place of entertainment, public transit facility, the importance of fire-fighting, fire safety shows especially out.How under the situation of fire, ensure the unimpeded of electric power and communication within a certain period of time, the performance of the more smog that does not produce when the time that even system's current supply circuit cables such as control, supervision, guiding and warning still can keep normal operation to burn within a certain period of time can be delayed to spread, burning and poisonous corrosive gas, win valuable rescue time to greatest extent, minimizing personnel's the injures and deaths and the loss of lives and properties, this is that people are always in the problem of constantly exploring.This just requires us except will strengthening fire safety consciousness, also should formulate strict relevant criterion widelys popularize and uses various cables with fire proofing and produce the serial electric wire that satisfies low smoke, zero halogen, oxygen barrier, high flame retardant, characteristic such as fire-resistant, there are a large amount of electric equipments and the intensive place of laying a large amount of cables to adopt flame retardant cable to stop fire spreading in power plant, transformer station etc., adopt fire-resisting cable to guarantee the uninterrupted power supply in important loop.
Present flame resistant cable present situation is generally common halide-free low-smoke fireproof cable, owing to infiltrate a large amount of Al (OH) in its insulation or sheath
3, Mg (OH)
2Fire-retardant inorganic material, though do not produce the pernicious gas of Halogen, but flame retardant rating rests on C class or category-B, be difficult to reach category-A, and infiltration because of a large amount of inorganic material, make its electromechanical properties and processing characteristics all become relatively poor, domesticly all trend towards developing low smoke, zero halogen toughness oxygen barrier high flame retardant fire-resistant wire and cable.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned existing disadvantages of background technology part, and the crosslinked polyetylene insulated toughness oxygen barrier layer of a kind of low smoke, zero halogen high flame retardant fireproof control cable is provided.
The purpose of this utility model reaches by following measure: the crosslinked polyetylene insulated toughness oxygen barrier layer of low smoke, zero halogen high flame retardant fireproof control cable, it comprises by 2-61 root cable and surrounds the cable core that one is formed, it is characterized in that periphery at cable core is for there being two layers of polyester belt, in the periphery flexible oxygen barrier layer of outer field polyester belt, two layers of low smoke and zero halogen sheath are arranged in the periphery of described toughness oxygen barrier layer.
In technique scheme, between described two layers of polyester belt, the copper wire screen is arranged.
In technique scheme, described cable is by copper conductor, and the mica tape that is positioned at the copper conductor periphery is formed with the crosslinked polyetylene insulated layer that is positioned at the mica tape periphery.
In technique scheme, between described two layers of low smoke and zero halogen sheath, galvanized steel strip is arranged.
The examining report that the utility model is done through national electric wire product quality supervision and inspection centers (Wuhan) meets such product standard requirement.
1., bunched burning test-category-A the index of its test comprises:: the distance that the length tool nozzle base of charing on the sample makes progress: the maximum 2.5m of standard-required, actual measurement 0.9m; Stop the time that the flame sustained combustion is arranged: the maximum 60min of standard-required, actual measurement 8min for fire back sample.2., the single testing vertical flammability of cable: upper bracket lower edge and charing partly play dot spacing from the minimum 50mm of: standard-required, actual measurement 396mm; Burning extends downward upper bracket lower edge distance: the maximum 540mm of standard-required, actual measurement 494mm.3., the test that disengages gas: the weighted value of pH value: standard-required minimum 4.3, actual measurement 4.4; The weighted value of conductivity: the maximum 10 μ s/mm of standard-required, survey 9.3 μ s/mm.4., smoke density test: minimum light transmittance: standard-required 60%, actual measurement 71%.5., fire resistance test: for fire time 90+ 15min cooling time, standard-required 0.25A fuse is continuous, and actual measurement is not by (the standard-required indicator light puts out, and actual measurement is passed through).
The crosslinked polyetylene insulated toughness oxygen barrier layer of the utility model low smoke, zero halogen high flame retardant fireproof control cable is mainly used in ac rated voltage 450/750V and following skyscraper, subway, oil field, transformer station, power plant, mine, chemical plant, city square and high flame retardant and fire-resistant occasions of having relatively high expectations such as other public utilities control, monitoring loop or computer system.Metallic compound decomposes when low smoke, zero halogen, toughness oxygen barrier high flame retardant, fire-resistance property make the fire generation, discharge the segregation of the crystallization water, absorbed a large amount of heat energy, to reduce ambient temperature, and form molten aluminium oxide duricrust that does not fire, with contacting of isolated insulation organic substance and outside air, thereby greatly reduce the temperature of outer combustible and surrounding environment, do not have halogen acid gas to emit when cable fire, the corrosive gas that the amount of being fuming of cable and cable fire produce is also little.The wrapped fire resistive construction of multi layer cloud master tape can effectively stop flame to pass, and makes cable still can keep the operate as normal of this circuit a period of time under burning condition.Effectively control smoke density and flare spread, combustion site visibility height, and the pernicious gas burst size is low, and the corrosivity of burning gases is little, is convenient to withdrawing of personnel, reduces environmental pollution, has avoided the infringement to the equipment property.While is ageing-resistant and characteristic UV resistant owing to the low smoke, zero halogen polyolefine material has, the useful life that can improve product greatly.Be the new product that control cable updates, be significant and good economic benefit and social benefit.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of cable in the utility model.
1. cables among the figure, 11. copper conductors, 12. mica tapes, 13. crosslinked polyetylene insulated layer, 2. polyester belt, 3. toughness oxygen barrier layer, 4. copper wire screen, 5. low smoke and zero halogen sheath, 6. galvanized steel strips.
Embodiment
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but they do not constitute to qualification of the present utility model, only do for example.Simultaneously by illustrating that advantage of the present utility model will become clear more and understanding easily.
Consult accompanying drawing as can be known: the crosslinked polyetylene insulated toughness oxygen barrier layer of the utility model low smoke, zero halogen high flame retardant fireproof control cable, it comprises by the 2-61 root (can specifically select different radicals as required, being generally 7) cable 1 surrounds the cable core that one is formed, in the periphery of cable core for two layers of polyester belt 2 are arranged, in the periphery flexible oxygen barrier layer 3 of outer field polyester belt 2, two layers of low smoke and zero halogen sheath 5 are arranged in the periphery of described toughness oxygen barrier layer 3.Between described two layers of polyester belt 2, copper wire screen 4 is arranged.Described cable 1 is by copper conductor 11, and the mica tape 12 that is positioned at copper conductor 11 peripheries is formed with the crosslinked polyetylene insulated layer 13 that is positioned at mica tape 12 peripheries.Between described two layers of low smoke and zero halogen sheath 5, galvanized steel strip 6 is arranged.
The conductor of cable adopts the good copper conductor (fusing point of copper is 1083 ℃) of fire resistance, and between conductor and insulating barrier, adopt by multilayer fluorine gold combined mica band wrapped, it can be in 950 ℃～1000 ℃ flame and under the rated voltage tolerance burn at least 90min and cable not breakdown (being that the 3A fuse does not fuse).
Organosilane crosslinked polyethylene (XLPE) is adopted in the insulation of cable; Sheath adopts low smoke, zero halogen polyolefin flame-retardant sheath material; The outer wrapped one deck oxygen barrier layer of cable core behind the stranding, it is mainly by containing Al (OH)
3, Mg (OH)
2And through the twining package tape of special process processed, after it is heated, discharge the crystallization water and form the molten duricrust that does not fire, play a part cooling and insulation blocking insulation; To twist during stranding into the fire-retardant gasket for packing of dustless rock wool, so that make the cable core rounding.
Claims (4)
1. the crosslinked polyetylene insulated toughness oxygen barrier layer of low smoke, zero halogen high flame retardant fireproof control cable, it comprises by 2-61 root cable (1) and surrounds the cable core that one is formed, it is characterized in that periphery at cable core is for there being two layers of polyester belt (2), in the periphery flexible oxygen barrier layer (3) of outer field polyester belt (2), two layers of low smoke and zero halogen sheath (5) are arranged in the periphery of described toughness oxygen barrier layer (3).
2. the crosslinked polyetylene insulated toughness oxygen barrier layer of low smoke, zero halogen according to claim 1 high flame retardant fireproof control cable is characterized in that copper wire screen (4) is arranged between described two layers of polyester belt (2).
3. the crosslinked polyetylene insulated toughness oxygen barrier layer of low smoke, zero halogen according to claim 1 high flame retardant fireproof control cable, it is characterized in that described cable (1) by copper conductor (11), the crosslinked polyetylene insulated layer (13) that is positioned at the mica tape (12) of copper conductor (11) periphery and is positioned at mica tape (12) periphery is formed.
4. according to claim 1 or the crosslinked polyetylene insulated toughness oxygen barrier layer of 2 or 3 described low smoke, zero halogens high flame retardant fireproof control cable, it is characterized in that galvanized steel strip (6) is arranged between described two layers of low smoke and zero halogen sheath (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206560625U CN201904147U (en) | 2010-12-13 | 2010-12-13 | High flame-retardant fire-resistant control cable with halogen-free low smoke cross-linked polyethylene insulating tough oxygen barrier layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206560625U CN201904147U (en) | 2010-12-13 | 2010-12-13 | High flame-retardant fire-resistant control cable with halogen-free low smoke cross-linked polyethylene insulating tough oxygen barrier layer |
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| Publication Number | Publication Date |
|---|---|
| CN201904147U true CN201904147U (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206560625U Expired - Fee Related CN201904147U (en) | 2010-12-13 | 2010-12-13 | High flame-retardant fire-resistant control cable with halogen-free low smoke cross-linked polyethylene insulating tough oxygen barrier layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201904147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109102933A (en) * | 2018-08-30 | 2018-12-28 | 安徽蒙特尔电缆集团有限公司 | A kind of subway being easily installed anti-interference type cable |
-
2010
- 2010-12-13 CN CN2010206560625U patent/CN201904147U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109102933A (en) * | 2018-08-30 | 2018-12-28 | 安徽蒙特尔电缆集团有限公司 | A kind of subway being easily installed anti-interference type cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20141213 |
|
| EXPY | Termination of patent right or utility model |