CN110767360A - Flame-retardant fire-fighting low-smoke halogen-free irradiation cable - Google Patents
Flame-retardant fire-fighting low-smoke halogen-free irradiation cable Download PDFInfo
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- CN110767360A CN110767360A CN201911137037.8A CN201911137037A CN110767360A CN 110767360 A CN110767360 A CN 110767360A CN 201911137037 A CN201911137037 A CN 201911137037A CN 110767360 A CN110767360 A CN 110767360A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention discloses a flame-retardant fire-fighting low-smoke halogen-free irradiation cable, which comprises a conductive core and an outer sheath, wherein the outer sheath is fixedly sleeved outside the conductive core, a filling shielding structure is arranged between the conductive core and the outer sheath, a heat-resistant flame-retardant structure is sleeved outside the filling shielding structure, and a reinforced wear-resistant structure is sleeved outside the outer sheath Bending resistance, wear resistance, difficult core wire breakage and no sheath cracking.
Description
Technical Field
The invention relates to the technical field of flame-retardant cables, in particular to a flame-retardant fire-fighting low-smoke halogen-free irradiation cable.
Background
With the rapid development of economy, electric wires and cables are widely applied in various industry fields, with the frequent occurrence of electrical fire accidents, the flame retardant problem of the electric wires and cables gradually draws attention of all countries in the world, in recent years, people find that more than 80% of the causes of death of people in the fire accidents are related to dense smoke and toxic gas generated by materials, and in order to reduce potential safety hazards, the electric wires and cables specially used for transmitting electric energy and communication signals are required to prevent flame spread, the electric wires and cables can also maintain the electric energy and the communication signals to be continuously transmitted, and the electric wires and cables have low smoke generation amount and low gas corrosion during combustion, so that the electric wires and cables are beneficial to the safe evacuation of workers, namely the electric wires and cables have the performances of no halogen, low smoke, flame retardance and the like.
In the prior art, the irradiation crosslinking low-smoke halogen-free flame-retardant insulating material has the advantages of low smoke and high flexibility, however, as vinyl triethoxysilane is mostly used as a coupling agent, the low-smoke halogen-free flame-retardant insulating material after irradiation crosslinking has low mechanical strength, poor flame retardancy and self-extinguishing property cannot meet the requirements of a vertical combustion test, and cannot meet the requirements of a modern low-smoke halogen-free flame-retardant cable material, when an existing cable is used in an extremely severe weather (such as an extremely low temperature or an extremely high temperature), a cable sheath is fragile, even an insulating layer can be decomposed, the loss of a cable system is directly increased, the risk of cable short circuit is increased, and a fire disaster or personnel injury is more likely to occur.
Disclosure of Invention
The invention aims to solve the problems, designs a flame-retardant fire-fighting low-smoke halogen-free irradiation cable, and solves the problems that in the prior art, as the irradiation crosslinking low-smoke halogen-free flame-retardant insulating material mostly uses vinyl triethoxysilane as a coupling agent, the mechanical strength of the irradiation crosslinking low-smoke halogen-free flame-retardant insulating material is low, the requirements of modern low-smoke halogen-free flame-retardant cable materials cannot be met, and the conventional cable is used under extremely severe weather (such as extremely low temperature or extremely high temperature), the cable sheath is fragile, the insulating layer can be even decomposed, the loss of a cable system is directly increased, the risk of cable short circuit is increased, and fire or personnel injury is more easily caused.
The technical scheme of the invention for realizing the aim is as follows: the flame-retardant fire-fighting low-smoke halogen-free irradiation cable comprises a conductive core and an outer sheath, wherein the outer sheath is fixedly sleeved outside the conductive core, a filling shielding structure is arranged between the conductive core and the outer sheath, a heat-resistant flame-retardant structure is sleeved outside the filling shielding structure, and a reinforced wear-resistant structure is sleeved outside the outer sheath;
the filling shielding structure comprises: a shielding isolation part and a filling fixing part;
the shielding isolation part is sleeved outside the conductive core, and the filling fixing part is coated outside the shielding isolation part;
the heat-resistant flame-retardant structure includes: a heat-resistant protection part and an irradiation flame-retardant part;
the heat-resistant protection part is sleeved outside the filling fixing part and is fixedly connected with the filling fixing part, and the irradiation flame-retardant part is coated outside the heat-resistant protection part and is fixedly connected with the inner wall surface of the outer sheath;
the wear-resistant reinforcing structure comprises: an armor reinforcement part and a wear-resistant and fold-resistant part;
the armor strengthening part is sleeved outside the outer sheath, and the anti-wear folding-resistant part is sleeved outside the armor strengthening part.
The shield isolation portion includes: an insulating layer and a conductor shielding layer;
the insulating layer covers the outer side of the conductive core, and the conductor shielding layer is sleeved on the outer side of the insulating layer.
The filling fixing portion includes: the inner cladding layer, the filling layer and the insulating shielding layer;
the inner cladding layer is coated on the outer side of the conductor shielding layer, the filling layer is filled between the conductor shielding layer and the inner cladding layer, and the insulation shielding layer is coated on the outer side of the inner cladding layer.
The heat-resistant protection portion includes: a heat-resistant isolation layer and an inner liner layer;
the heat-resistant isolation layer is coated on the outer side of the filling fixing portion, and the inner liner layer is coated on the outer side of the heat-resistant isolation layer.
The irradiation flame retardant portion includes: a low-smoke halogen-free flame-retardant layer and a protective layer;
the low-smoke halogen-free flame-retardant layer is coated on the outer side of the inner liner layer and is treated by adopting an irradiation crosslinking process, and the protective layer is sleeved on the outer side of the low-smoke halogen-free flame-retardant layer.
The armor-reinforcing portion includes: a water-blocking buffer layer and an armor layer;
the water blocking buffer layer is coated on the outer side of the outer sheath, and the armor layer is coated on the water blocking buffer layer.
The wear-resistant fold-resistant portion includes: a protective sheath and a buckling-resistant sleeve;
the protective sleeve is sleeved on the outer side of the armor layer, the bending-resistant sleeve is movably sleeved on the protective sleeve, and the bending-resistant sleeve is an elastic hose.
The low-smoke halogen-free flame-retardant layer is made of a low-smoke halogen-free flame-retardant polyethylene insulating material, low-smoke halogen-free polyolefin is used as a flame retardant, and irradiation crosslinking treatment is performed on the low-smoke halogen-free flame-retardant layer through an electron irradiation accelerator.
The armor layer is made of corrugated aluminum materials, the water-blocking buffer layer is wound with the preservative film type isolation thin film layer immediately after the wrapping is finished, the isolation buffer water-blocking layer is in contact with air, and the isolation thin film layer is removed when the next procedure is carried out.
The protective sleeve is made of a low-smoke halogen-free flame-retardant polyethylene insulating material through crosslinking.
The flame-retardant fire-fighting low-smoke halogen-free irradiation cable manufactured by the technical scheme of the invention improves the cable body by designing a cable base structure, utilizes low-smoke halogen-free polyolefin as a flame retardant and adopts irradiation mode for crosslinking, has long service life and strong overload capacity, and the irradiated and crosslinked polyolefin material has high temperature resistance level and high aging temperature, so the service life of the cable for circulating heating in the use process is prolonged, because the materials adopted by the cable are all halogen-free environment-friendly materials, the combustion characteristic of the cable meets the environment-friendly requirement, is environment-friendly and safe, and simultaneously, the reinforced wear-resistant structure is arranged at the outer side of the cable to protect the cable, the high-strength tensile, bending resistance, wear resistance, difficult core wire breakage and no cracking of a sheath are improved, the problems that in the prior art, the irradiation crosslinking low-smoke halogen-free flame-retardant insulation material mostly uses vinyltriethoxysilane as a coupling agent, the low-smoke halogen-free flame-retardant insulating material after irradiation crosslinking has low mechanical strength, can not meet the requirements of modern low-smoke halogen-free flame-retardant cable materials, and the existing cable not only can lead to the cable sheath to be fragile when being used under extremely severe weather (such as extremely low temperature or extremely high temperature), but also can decompose the insulating layer, directly increases the loss of a cable system, increases the risk of cable short circuit at the same time, and is more easy to cause the problems of fire or personnel injury.
Drawings
Fig. 1 is a schematic side view of a cross section of a flame-retardant fire-fighting low-smoke halogen-free irradiation cable according to the invention.
Fig. 2 is a schematic view of a partially enlarged structure of a position a of the flame-retardant fire-fighting low-smoke halogen-free irradiation cable.
Fig. 3 is a schematic structural diagram of a front view of the flame-retardant fire-fighting low-smoke halogen-free irradiation cable according to the invention.
Fig. 4 is a schematic view of a partial enlarged structure at position b of the flame-retardant fire-fighting low-smoke halogen-free irradiation cable.
In the figure: 1-a conductive core; 2-an outer sheath; 3-an insulating layer; 4-a conductor shield layer; 5-inner cladding; 6-filling layer; 7-an insulating shield layer; 8-a heat resistant barrier layer; 9-an inner liner layer; 10-low smoke halogen-free flame retardant layer; 11-a protective layer; 12-a water-blocking buffer layer; 13-an armor layer; 14-a protective sheath; 15-bending-resistant sleeve.
Detailed Description
The invention is described in detail with reference to the accompanying drawings, and as shown in fig. 1-4, the flame-retardant fire-fighting low-smoke halogen-free irradiation cable comprises a conductive core 1 and an outer sheath 2, the outer sheath 2 is fixedly sleeved outside the conductive core 1, a filling shielding structure is arranged between the conductive core 1 and the outer sheath 2, a heat-resistant flame-retardant structure is sleeved outside the filling shielding structure, an enhanced wear-resistant structure is sleeved outside the outer sheath 2, and the filling shielding structure comprises: shielding isolation portion and filling fixed part, shielding isolation portion suit in the 1 outside of conductive core, fill the fixed part cladding in the shielding isolation portion outside, heat-resisting fire-retardant structure includes: heat-resisting protection part and the fire-retardant portion of irradiation, heat-resisting protection part suit in fill the fixed part outside, and with fill fixed part fixed connection, the fire-retardant portion cladding of irradiation in the heat-resisting protection part outside, and with 2 inside wall fixed connection of oversheath, reinforce wear-resisting structure and include: armor portion of reinforceing and wear-resisting resistant portion of folding, the armor portion of reinforceing the suit in the 2 outsides of oversheath, wear-resisting resistant portion of folding suit in the armor portion of reinforceing the outside, shielding isolation part includes: insulating layer 3 and conductor shielding layer 4, insulating layer 3 cladding in the electrically conductive core 1 outside, conductor shielding layer 4 suit in the insulating layer 3 outside, fill the fixed part and include: inner cladding 5, filling layer 6 and insulating shield 7, inner cladding 5 cladding in the conductor shield 4 outside, filling layer 6 fill in conductor shield 4 and between inner cladding 5, insulating shield 7 cladding in the inner cladding 5 outside, heat-resisting protection portion includes: a heat resistant isolation layer 8 and an inner liner layer 9;
the heat-resisting isolation layer 8 wraps the filling fixing portion, the inner liner layer 9 wraps the heat-resisting isolation layer 8, and the irradiation flame-retardant portion comprises: fire-retardant layer 10 of low smoke and zero halogen and protective layer 11, the fire-retardant layer 10 cladding of low smoke and zero halogen in the 9 outsides of inner liner and adopt irradiation cross-linking technology to handle, protective layer 11 suit in the fire-retardant layer 10 outsides of low smoke and zero halogen, the armor is reinforceed the portion and is included: buffer layer 12 and armor 13 block water, buffer layer 12 the cladding of blocking water in the oversheath 2 outside, armor 13 the cladding in buffer layer 12 blocks water, the resistant book portion of wearing includes: protective sheath 14 and bending-resistant sleeve pipe 15, protective sheath 14 suit in the armor 13 outside, bending-resistant sleeve pipe 15 activity suit in on the protective sheath 14, bending-resistant sleeve pipe 15 is the elastic hose, low smoke and zero halogen flame retardant layer 10 adopts low smoke and zero halogen flame retardant polyethylene insulating material to use low smoke and zero halogen polyolefin as the fire retardant, through electron irradiation accelerator, carry out irradiation cross-linking to low smoke and zero halogen flame retardant layer 10 and handle, armor 13 adopts the wrinkle aluminium material, twines the isolated thin layer of plastic wrap class immediately after the buffer layer 12 that blocks water winds the package finishes, and isolated buffering water blocking layer and the contact of air are removed when carrying out the off-road preface again and are completely cut off isolated thin layer, protective sheath 14 adopts the cross-linking to adopt low smoke and zero halogen flame retardant polyethylene insulating material.
The characteristics of this embodiment do, including electrically conductive core 1 and oversheath 2, oversheath 2 is fixed suit in the electrically conductive core 1 outside, is provided with between electrically conductive core 1 and the oversheath 2 and fills the shielding structure, fills the shielding structure outside cover and is equipped with heat-resisting fire-retardant structure, and the oversheath 2 outside cover is equipped with the structure of wear-resistantly of reinforceing, fills the shielding structure and includes: shielding isolation portion and filling fixed part, shielding isolation portion suit in the electrically conductive core 1 outside, fill the fixed part cladding in the shielding isolation portion outside, heat-resisting fire-retardant structure includes: heat-resisting protection portion and the fire-retardant portion of irradiation, heat-resisting protection portion suit in fill the fixed part outside, and with fill fixed part fixed connection, the fire-retardant portion cladding of irradiation in the heat-resisting protection portion outside, and with 2 inside wall fixed connection of oversheath, the structure of reinforceing wear-resisting includes: the armor strengthening part is sleeved outside the outer sheath 2, and the wear-resistant folding-resistant part is sleeved outside the armor strengthening part; the flame-retardant fire-fighting low-smoke halogen-free irradiation cable is improved by designing a cable base structure, low-smoke halogen-free polyolefin is used as a flame retardant, irradiation crosslinking is adopted, the service life is long, the overload capacity is high, the temperature resistance grade of a polymer hydrocarbon material after irradiation crosslinking is high, the aging temperature is high, the service life of cyclic heating of the cable in the use process is prolonged, the combustion characteristic of the cable meets the environmental protection requirement due to the fact that the cable is made of halogen-free environment-friendly materials, the cable is environment-friendly and safe, meanwhile, the cable is protected by arranging the reinforced wear-resistant structure on the outer side of the cable, the high-strength tensile strength, the bending resistance, the wear resistance, the core wire breakage resistance and the cracking resistance of a sheath are improved, and the problems in the prior art that the vinyl triethoxysilane is mostly used as a coupling agent in the irradiation crosslinking low-smoke halogen-free flame-retardant insulating material are, the low-smoke halogen-free flame-retardant insulating material after irradiation crosslinking has low mechanical strength, cannot meet the requirements of modern low-smoke halogen-free flame-retardant cable materials, and the conventional cable not only can cause a cable sheath to be fragile when used in extremely severe weather (such as extremely low temperature or extremely high temperature), but also can decompose an insulating layer 3, directly increases the loss of a cable system, increases the risk of cable short circuit at the same time, and is more prone to fire or personnel injury.
Example (b): as can be seen from the attached figures 1-4 of the specification, the scheme comprises a conductive core 1 and an outer sheath 2, wherein the outer sheath 2 is fixedly sleeved outside the conductive core 1, a filling shielding structure is arranged between the conductive core 1 and the outer sheath 2, a heat-resistant flame-retardant structure is sleeved outside the filling shielding structure, and a reinforced wear-resistant structure is sleeved outside the outer sheath 2; the filling shielding structure comprises: shielding isolation portion and filling fixed part, its position relation and relation of connection are as follows, and shielding isolation portion suit is in the conductive core 1 outside, and the cladding of filling fixed part is in the shielding isolation portion outside, and above-mentioned heat-resisting fire-retardant structure includes: the heat-resistant protection part is sleeved outside the filling fixing part and is fixedly connected with the filling fixing part, and the irradiation flame-retardant part is coated outside the heat-resistant protection part and is fixedly connected with the inner side wall surface of the outer sheath 2; the reinforced abrasion-resistant structure comprises: the armored strengthening part is sleeved outside the outer sheath 2, the anti-wear and anti-folding part is sleeved outside the armored strengthening part, the flame-retardant fire-fighting low-smoke halogen-free irradiation cable improves the cable, low-smoke halogen-free polyolefin is used as a flame retardant, the cable is cross-linked by adopting an irradiation mode, the cable is long in service life and strong in overload capacity, the temperature-resistant grade of a polymer hydrocarbon material after irradiation cross-linking is high, the aging temperature is high, the service life of cyclic heating of the cable in the use process is prolonged, the combustion characteristic of the cable accords with the environmental protection requirement, the cable is environment-friendly and safe, meanwhile, the strengthened anti-wear structure is arranged outside the cable to protect the cable, the high-strength tensile strength, the bending resistance, the wear resistance and the constant breaking of the core wire of the cable are increased, the property of the sheath not to crack.
As can be seen from fig. 1 to 4 of the specification, in a specific implementation process, the shielding isolation part includes: insulating layer 3 and conductor shielding layer 4, its position relation and relation of connection are as follows, insulating layer 3 cladding is in the conductive core 1 outside, and conductor shielding layer 4 suit is in the insulating layer 3 outside, and above-mentioned filling fixed part includes: the cable comprises an inner cladding 5, a filling layer 6 and an insulating and shielding layer 7, wherein the inner cladding 5 is coated outside a conductor shielding layer 4, the filling layer 6 is filled between the conductor shielding layer 4 and the inner cladding 5, the insulating and shielding layer 7 is coated outside the inner cladding 5, when the cable is used, the conductive core 1 is subjected to insulating treatment through an insulating layer 3, the conductive core 1 is subjected to electromagnetic shielding through the conductor shielding layer 4, the filling layer 6 between the inner cladding 5 and the insulating layer 3 is used for filling, so that the internal structure of the cable is stable, and the filled cable structure is subjected to insulating and shielding treatment through the insulating and shielding layer 7;
as can be seen from fig. 1 to 4 of the specification, in the specific implementation process, the heat-resistant protection part comprises: heat-resisting isolation layer 8 and inner liner 9, its positional relationship and relation of connection are as follows, and the heat-resisting isolation layer 8 cladding is in filling the fixed part outside, and inner liner 9 cladding is in the heat-resisting isolation layer 8 outside, and the fire-retardant portion of above-mentioned irradiation includes: the low-smoke halogen-free flame-retardant layer 10 and the protective layer 11 are in a position relation and a connection relation, the low-smoke halogen-free flame-retardant layer 10 is coated on the outer side of the inner liner layer 9 and is processed by adopting an irradiation crosslinking process, the protective layer 11 is sleeved on the outer side of the low-smoke halogen-free flame-retardant layer 10, when the low-smoke halogen-free flame-retardant layer is used, the heat-resistant isolation layer 8 can adopt an alkali-free glass fiber tape or a fire-resistant mica tape for fire-resistant isolation, the heat-resistant isolation layer 8 is coated through the inner liner layer 9, the heat-resistant isolation layer 8 is tightly attached to the low-smoke halogen-free flame-retardant layer 10, the low-smoke halogen-free flame-retardant layer 10 adopts a low-;
as can be seen from fig. 1 to 4 of the specification, in a specific implementation process, the armor reinforcement part includes: buffer layer 12 and the armor 13 block water, its position relation and connection relation as follows, and buffer layer 12 the cladding of blocking water is in the oversheath 2 outside, and armor 13 cladding is in buffer layer 12 blocks water, and above-mentioned resistant book portion that wear-resistants includes: protective sheath 14 and bending-resistant sleeve pipe 15, its position relation and relation of connection are as follows, protective sheath 14 suit is in the armor 13 outside, bending-resistant sleeve pipe 15 activity suit is on protective sheath 14, bending-resistant sleeve pipe 15 is the elastic hose, armor 13 adopts the wrinkle aluminium material, twine the isolated thin layer of plastic wrap class immediately after the buffering layer 12 that blocks water winds the package finishes, the contact of isolated buffering water blocking layer and air, remove isolated thin layer when going on the next preface again, protective sheath 14 adopts the cross-linking to adopt the fire-retardant polyethylene insulating material of low smoke and zero halogen.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (10)
1. The flame-retardant fire-fighting low-smoke halogen-free irradiation cable comprises a conductive core (1) and an outer sheath (2), and is characterized in that the outer sheath (2) is fixedly sleeved outside the conductive core (1), a filling shielding structure is arranged between the conductive core (1) and the outer sheath (2), a heat-resistant flame-retardant structure is sleeved outside the filling shielding structure, and an enhanced wear-resistant structure is sleeved outside the outer sheath (2);
the filling shielding structure comprises: a shielding isolation part and a filling fixing part;
the shielding isolation part is sleeved on the outer side of the conductive core (1), and the filling fixing part is coated on the outer side of the shielding isolation part;
the heat-resistant flame-retardant structure includes: a heat-resistant protection part and an irradiation flame-retardant part;
the heat-resistant protection part is sleeved outside the filling fixing part and is fixedly connected with the filling fixing part, and the irradiation flame-retardant part is coated outside the heat-resistant protection part and is fixedly connected with the inner side wall surface of the outer sheath (2);
the wear-resistant reinforcing structure comprises: an armor reinforcement part and a wear-resistant and fold-resistant part;
the armor strengthening part is sleeved on the outer side of the outer sheath (2), and the anti-wear folding-resistant part is sleeved on the outer side of the armor strengthening part.
2. The flame retardant fire-fighting low smoke zero halogen irradiation cable according to claim 1, wherein the shielding isolation part comprises: an insulating layer (3) and a conductor shield layer (4);
the insulating layer (3) covers the outer side of the conductive core (1), and the conductor shielding layer (4) is sleeved on the outer side of the insulating layer (3).
3. The flame retardant fire-fighting low smoke zero halogen irradiation cable according to claim 2, wherein the filling fixing part comprises: an inner cladding layer (5), a filling layer (6) and an insulation shielding layer (7);
the inner cladding (5) is coated on the outer side of the conductor shielding layer (4), the filling layer (6) is filled between the conductor shielding layer (4) and the inner cladding (5), and the insulation shielding layer (7) is coated on the outer side of the inner cladding (5).
4. The flame retardant fire-fighting low smoke zero halogen irradiation cable according to claim 1, wherein the heat-resistant protection part comprises: a heat-resistant isolation layer (8) and an inner liner layer (9);
the heat-resistant isolation layer (8) is coated on the outer side of the filling fixing portion, and the inner lining layer (9) is coated on the outer side of the heat-resistant isolation layer (8).
5. The flame retardant fire-fighting low smoke zero halogen irradiation cable according to claim 4, wherein the irradiation flame retardant part comprises: a low-smoke halogen-free flame-retardant layer (10) and a protective layer (11);
the low-smoke halogen-free flame-retardant layer (10) is coated on the outer side of the inner liner layer (9) and is treated by adopting an irradiation crosslinking process, and the protective layer (11) is sleeved on the outer side of the low-smoke halogen-free flame-retardant layer (10).
6. The flame retardant fire-fighting low smoke zero halogen irradiation cable according to claim 1, wherein the armored reinforcement part comprises: a water-blocking buffer layer (12) and an armor layer (13);
the water blocking buffer layer (12) is coated on the outer side of the outer sheath (2), and the armor layer (13) is coated on the water blocking buffer layer (12).
7. The flame retardant fire-fighting low smoke zero halogen irradiation cable according to claim 6, wherein the anti-wear folding-resistant portion comprises: a protective sheath (14) and a buckling-resistant sleeve (15);
the protective sleeve (14) is sleeved on the outer side of the armor layer (13), the bending-resistant sleeve (15) is movably sleeved on the protective sleeve (14), and the bending-resistant sleeve (15) is an elastic hose.
8. The flame-retardant fire-fighting low-smoke zero-halogen irradiation cable according to claim 5, characterized in that the low-smoke zero-halogen flame-retardant layer (10) is made of low-smoke zero-halogen flame-retardant polyethylene insulation material, low-smoke zero-halogen polyolefin is used as a flame retardant, and irradiation crosslinking treatment is performed on the low-smoke zero-halogen flame-retardant layer (10) through an electron irradiation accelerator.
9. The flame-retardant fire-fighting low-smoke zero-halogen irradiation cable according to claim 6, characterized in that the armor layer (13) is made of corrugated aluminum material, an isolation film layer of preservative film type is wound immediately after the water-blocking buffer layer (12) is wound, the isolation buffer water-blocking layer is contacted with air, and the isolation film layer is removed when the next procedure is performed.
10. The flame-retardant fire-fighting low-smoke zero-halogen irradiation cable according to claim 7, characterized in that the protective sheath (14) is made of low-smoke zero-halogen flame-retardant polyethylene insulation material by crosslinking.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911137037.8A CN110767360A (en) | 2019-11-19 | 2019-11-19 | Flame-retardant fire-fighting low-smoke halogen-free irradiation cable |
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| CN201911137037.8A CN110767360A (en) | 2019-11-19 | 2019-11-19 | Flame-retardant fire-fighting low-smoke halogen-free irradiation cable |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20200207 |