CN212907221U - Medium-voltage fire-resistant cable - Google Patents
Medium-voltage fire-resistant cable Download PDFInfo
- Publication number
- CN212907221U CN212907221U CN202022033077.2U CN202022033077U CN212907221U CN 212907221 U CN212907221 U CN 212907221U CN 202022033077 U CN202022033077 U CN 202022033077U CN 212907221 U CN212907221 U CN 212907221U
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- resistant cable
- outside
- cable
- medium voltage
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- 230000009970 fire resistant effect Effects 0.000 title claims description 20
- 239000000919 ceramic Substances 0.000 claims abstract description 26
- 239000002131 composite material Substances 0.000 claims abstract description 26
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 26
- 239000004020 conductor Substances 0.000 claims abstract description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 22
- 239000001301 oxygen Substances 0.000 claims abstract description 22
- 239000003063 flame retardant Substances 0.000 claims abstract description 21
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 14
- 239000000779 smoke Substances 0.000 claims abstract description 14
- 230000002265 prevention Effects 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 9
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 8
- 150000002367 halogens Chemical class 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 116
- 239000003365 glass fiber Substances 0.000 claims description 17
- 239000004744 fabric Substances 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000011247 coating layer Substances 0.000 claims description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 3
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 3
- -1 flame-retardant olefin Chemical class 0.000 claims description 2
- 230000006378 damage Effects 0.000 description 8
- 230000004888 barrier function Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 231100000252 nontoxic Toxicity 0.000 description 5
- 230000003000 nontoxic effect Effects 0.000 description 5
- 239000004945 silicone rubber Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 241000699666 Mus <mouse, genus> Species 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- 239000002612 dispersion medium Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 241000699670 Mus sp. Species 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
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- 238000010438 heat treatment Methods 0.000 description 1
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- 230000009965 odorless effect Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
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Abstract
The utility model discloses a middling pressure fire resisting cable, including the conductor, the outside parcel in proper order of conductor has internal shield layer, insulating layer and outer shielding layer, and the outside of outer shielding layer is equipped with ceramic fire prevention silicon rubber composite belt, and the outside of ceramic fire prevention silicon rubber composite belt is provided with the waterproof layer, and the outside of waterproof layer is provided with the buffer layer, and the outside cover of buffer layer is equipped with the flame retardant coating in proper order, separates oxygen layer, protective sheath layer and first steel band armor, and the protective sheath layer is made by low smoke and zero halogen flame retardant material. The utility model provides a pair of middling pressure fire resisting cable can last the power supply to provide electric power assurance and communication assurance, and improved middling pressure fire resisting cable's fire behavior.
Description
Technical Field
The utility model relates to a power cable technical field especially relates to a middling pressure fire resisting cable.
Background
Fire-resistant cable means a cable that can be kept in operation safely for a certain period of time in the event of a flame burn. Fire-resistant cables are widely used in places related to fire safety and fire life saving, such as high-rise buildings, underground railways, underground streets, large power stations, and important industrial and mining enterprises, for example, power supply lines and control lines of emergency facilities such as fire-fighting equipment and emergency guide lamps.
The fire-resistant cable is mostly used as a power supply loop of an emergency power supply and is required to normally work in case of fire, but the existing fire-resistant cable only depends on a fire-resistant material in case of fire, so that the heat insulation and flame retardant capability of the existing fire-resistant cable is still limited, the existing fire-resistant cable can only maintain power supply within a very limited time after the fire occurs, the normal and continuous operation of fire-fighting facilities cannot be guaranteed, and sufficient time cannot be provided for escape.
SUMMERY OF THE UTILITY MODEL
To the background art not enough, the utility model provides a middling pressure fire resisting cable can last the power supply to provide electric power and guarantee with the communication, and improved middling pressure fire resisting cable's fire behavior.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a middling pressure fire resisting cable, includes the conductor, the outside parcel in proper order of conductor has internal shield layer, insulating layer and outer shielding layer, the outside of outer shielding layer is equipped with ceramic fire prevention silicon rubber composite belt, the outside of ceramic fire prevention silicon rubber composite belt is provided with the waterproof layer, the outside of waterproof layer is provided with the buffer layer, the outside cover of buffer layer is equipped with the flame retardant coating in proper order, separates oxygen layer, prevents restrictive coating and first steel band armor, prevent that the restrictive coating is made by low smoke and zero halogen flame retardant material.
By adopting the scheme, the magnetic field generated by electrifying the conductor can be eliminated through the inner shielding layer, the insulating layer and the outer shielding layer, and the conductor can be electrically blocked, the ceramic fireproof silicon rubber composite belt has high strength, high heat resistance and better fireproof and flame-retardant properties, and flame is prevented from damaging the conductor, so that smooth transmission of electric power is facilitated, the ceramic fireproof silicon rubber composite belt has flexibility, the toughness of the cable is enhanced, the arranged waterproof layer can prevent water from permeating into the conductor inside the waterproof layer, the buffer layer can effectively buffer acting force applied to the cable, the cable is protected from being damaged, the fireproof performance of the cable is improved through the fireproof layer and the oxygen isolation layer, the protective cover layer is made of low-smoke halogen-free flame-retardant materials, the fireproof performance of the cable is further improved, the rigidity and toughness of the cable are enhanced through the first steel tape armoring, the cable is enabled to resist compression and not to be, the cable is prevented from being bitten by mice in outdoor complex occasions to cause damage, the service life is prolonged, and therefore the cable can be continuously powered, and power guarantee and communication guarantee are provided.
Preferably, a filling layer is arranged between the ceramic fireproof silicon rubber composite belt and the waterproof layer, and the filling layer is filled with alkali-free glass fibers.
By adopting the scheme, the main component of the alkali-free glass fiber is silicon dioxide, the alkali-free glass fiber is very stable in chemical property, non-toxic and harmless, the heat-resistant temperature can reach more than 660 ℃, harmful smoke is not generated after the alkali-free glass fiber is heated, and the alkali-free glass fiber is green and environment-friendly.
Preferably, one end of a spring is fixedly connected to the outer side of the first steel-tape armor, and the other end of the spring is fixedly connected with the second steel-tape armor.
Adopt above-mentioned scheme, the cable is receiving the extrusion or when rolling, and the spring can play the cushioning effect, and the protection cable does not receive the damage.
Preferably, alkali-free glass fiber cloth wrapping bands wrap the outer side of the oxygen isolation layer, and the alkali-free glass fiber cloth wrapping bands are arranged between the oxygen isolation layer and the protective sleeve layer.
By adopting the scheme, the deformation resistance and the toughness of the cable are improved.
Preferably, the oxygen barrier layer is a low-smoke halogen-free flame-retardant olefin oxygen barrier layer with an oxygen index larger than that of the oxygen barrier layer.
By adopting the scheme, the oxygen-isolating layer has the characteristics of excellent corrosion resistance, flame retardance, no halogen and the like, and meets the practical requirements of the medium-voltage fire-resistant cable.
Preferably, the insulating layer is made of cross-linked polyethylene.
By adopting the scheme, the insulating layer has better heat-resistant insulating corrosion resistance.
Preferably, the first steel tape armor and the second steel tape armor are made of double-layer galvanized steel tapes.
By adopting the scheme, the rigidity and the toughness of the cable are improved.
Preferably, the waterproof layer is specifically an acrylic waterproof coating layer.
By adopting the scheme, the acrylic acid waterproof coating layer can form a water-blocking film on the surface of the ceramic fireproof silicon rubber composite belt, and the acrylic acid waterproof coating takes water as a dispersion medium, is nontoxic, tasteless, environment-friendly and good in waterproof effect, and does not pollute the environment.
Preferably, the thickness of the protective sleeve layer is 2-3 mm.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) can eliminate the magnetic field that the conductor circular telegram produced through internal shield layer, insulating layer and outer shielding layer to can carry out the electrical property to the conductor and block, the outside of outer shielding layer is provided with ceramic fire prevention silicon rubber composite tape, and ceramic fire prevention silicon rubber composite tape has high strength, high heat-resisting and better fire prevention and fire behaviour, prevents that flame from causing the injury to the conductor, thereby is favorable to the unobstructed transmission of electric power.
(2) The ceramic fireproof silicon rubber composite belt has flexibility, the toughness of the cable is enhanced, the waterproof layer can prevent water from permeating into the conductor in the waterproof layer, the buffer layer can effectively buffer acting force on the cable and protect the cable from being damaged,
(3) the flame retardant coating with separate the oxygen layer and improved the fire resistance of cable, the lag layer is made by low smoke and zero halogen flame retardant material, has further improved the fire resistance of cable, first steel band armor has strengthened the rigidity and the toughness of cable, makes the difficult fracture of cable resistance to compression, has prevented that the cable from being gnawed by the mouse and stings the injury that causes in outdoor complicated occasion, has prolonged life to guarantee that the cable can last the power supply, guarantee with providing electric power and guarantee with the communication.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a conductor; 2. an inner shield layer; 3. an insulating layer; 4. an outer shield layer; 5. a ceramic fireproof silicon rubber composite belt; 6. a filling layer; 7. a waterproof layer; 8. a buffer layer; 9. a refractory layer; 10. an oxygen barrier layer; 11. alkali-free glass fiber cloth wrapping belts; 12. a protective sheath layer; 13. a first steel tape armor; 14. a spring; 15. and a second steel tape armor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the utility model provides a middling pressure fire resisting cable, including conductor 1, conductor 1's outside parcel has internal shield layer 2 in proper order, insulating layer 3 and external shield layer 4, the outside of external shield layer 4 is equipped with ceramic fire prevention silicon rubber composite strip 5, ceramic fire prevention silicon rubber composite strip 5's the outside is provided with waterproof layer 7, the outside of waterproof layer 7 is provided with buffer layer 8, buffer layer 8's outside overlaps in proper order and is equipped with flame retardant coating 9, separate oxygen layer 10, protective sheath 12 and first steel band armor 13, protective sheath 12 is made by low smoke and zero halogen flame retardant material.
The magnetic field generated by electrifying the conductor 1 can be eliminated through the inner shielding layer 2, the insulating layer 3 and the outer shielding layer 4, and the conductor 1 can be electrically blocked, the ceramic fireproof silicon rubber composite belt 5 has high strength, high heat resistance and better fireproof and flame-retardant properties, and flame is prevented from damaging the conductor 1, so that smooth transmission of electric power is facilitated, the ceramic fireproof silicon rubber composite belt 5 has flexibility, the toughness of the cable is enhanced, the arranged waterproof layer 7 can prevent water from permeating into the conductor 1 in the waterproof layer 7, the buffer layer 8 can effectively buffer acting force on the cable and protect the cable from being damaged, the fireproof layer 9 and the oxygen isolation layer 10 improve the fireproof property of the cable, the protective sheath layer 12 is made of low-smoke halogen-free flame-retardant material, the fireproof property of the cable is further improved, and the rigidity and the toughness of the cable are enhanced through the first steel strip armor 13, make the difficult fracture of cable resistance to compression, prevented that the cable from being gnawed the injury that causes by the mouse in outdoor complicated occasion, prolonged life to guarantee that the cable can last the power supply, guarantee with providing electric power and communication.
A filling layer 6 is arranged between the ceramic fireproof silicone rubber composite belt 5 and the waterproof layer 7, the filling layer 6 is filled by alkali-free glass fibers, the main component of the alkali-free glass fibers is silicon dioxide, the chemical property is very stable, the ceramic fireproof silicone rubber composite belt is non-toxic and harmless, the heat-resistant temperature can reach more than 660 ℃, harmful smoke cannot be generated after the ceramic fireproof silicone rubber composite belt is heated, and the ceramic fireproof silicone rubber composite belt is green and environment-friendly.
The outside fixedly connected with spring 14's of first steel band armor 13 one end, spring 14's the other end and 15 fixed connection of second steel band armor, the cable is receiving the extrusion or when rolling, and spring 14 can play the cushioning effect, and the protection cable does not receive the damage.
The outer side of the oxygen isolation layer 10 is wrapped with alkali-free glass fiber cloth wrapping bands 11, and the alkali-free glass fiber cloth wrapping bands 11 are arranged between the oxygen isolation layer 10 and the protective sleeve layer 12, so that the deformation resistance and the toughness of the cable are improved.
The oxygen-isolating layer 10 is a low-smoke halogen-free flame-retardant olefin oxygen-isolating layer with the oxygen index larger than 38, so that the oxygen-isolating layer 10 has the characteristics of excellent corrosion resistance, flame retardance, no halogen and the like, and meets the practical requirements of medium-voltage fire-resistant cables.
The insulating layer 3 is made of cross-linked polyethylene, so that the insulating layer 3 has good heat-resistant insulating and corrosion-resistant properties.
The first steel tape armor 13 and the second steel tape armor 15 are made of double-layer galvanized steel tapes, so that the rigidity and toughness of the cable are improved.
The waterproof layer 7 is specifically an acrylic waterproof coating layer which can form a water-blocking film on the surface of the ceramic fireproof silicone rubber composite belt 5, and the acrylic waterproof coating takes water as a dispersion medium, is nontoxic, odorless, environment-friendly and good in waterproof effect, and does not pollute the environment.
The thickness of the protective sheath layer 12 is 2-3 mm.
The working principle is as follows: the magnetic field generated by electrifying the conductor 1 can be eliminated through the inner shielding layer 2, the insulating layer 3 and the outer shielding layer 4, and the conductor 1 can be electrically blocked, the ceramic fireproof silicon rubber composite belt 5 has high strength, high heat resistance and better fireproof and flame-retardant properties, and flame is prevented from damaging the conductor 1, so that smooth transmission of electric power is facilitated, the ceramic fireproof silicon rubber composite belt 5 has flexibility, the toughness of the cable is enhanced, the filling layer 6 is filled by alkali-free glass fiber, the chemical properties are very stable, non-toxic and harmless, harmful smoke is not generated after heating, the environment is protected, the arranged waterproof layer 7 can prevent water from permeating into the conductor 1 inside the waterproof layer 7, the buffer layer 8 can effectively buffer acting force applied to the cable, the cable is protected from being damaged, and the fireproof and flame-retardant properties of the cable are improved through the fireproof layer 9 and the oxygen barrier layer 10, the alkali-free glass fiber cloth belting 11 of the outside parcel of oxygen barrier layer 10 has increased the resistance to deformation and the toughness of cable, protective sheath 12 is made by low smoke and zero halogen flame retardant material, the fire behavior of cable has further been improved, the spring 14 that sets up makes the cable receive the extrusion or when rolling, spring 14 plays the cushioning effect, further protection cable does not receive the damage, first steel band armor 13 and second steel band armor 15 have strengthened the rigidity and the toughness of cable, make the difficult fracture of cable resistance to compression, the cable has been prevented and the injury that causes is gnawed by the mouse in outdoor complicated occasion, service life is prolonged, thereby guarantee that the cable can continuously supply power, guarantee with communication assurance and provide electric power.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A medium voltage fire resistant cable comprising a conductor (1), characterized in that: the outer portion of conductor (1) wraps up in proper order has internal shield layer (2), insulating layer (3) and external shield layer (4), the outside of external shield layer (4) is equipped with ceramic fire prevention silicon rubber composite belt (5), the outside of ceramic fire prevention silicon rubber composite belt (5) is provided with waterproof layer (7), the outside of waterproof layer (7) is provided with buffer layer (8), the outside of buffer layer (8) is overlapped in proper order and is equipped with flame retardant coating (9), separates oxygen layer (10), lag layer (12) and first steel band armor (13), lag layer (12) are made by low smoke and zero halogen flame retardant material.
2. A medium voltage fire resistant cable according to claim 1, characterized in that: a filling layer (6) is arranged between the ceramic fireproof silicon rubber composite belt (5) and the waterproof layer (7), and the filling layer (6) is filled with alkali-free glass fibers.
3. A medium voltage fire resistant cable according to claim 2, characterized in that: the outer side of the first steel-tape armor (13) is fixedly connected with one end of a spring (14), and the other end of the spring (14) is fixedly connected with a second steel-tape armor (15).
4. A medium voltage fire resistant cable according to claim 3, characterized in that: the outer side of the oxygen isolation layer (10) is wrapped with alkali-free glass fiber cloth wrapping bands (11), and the alkali-free glass fiber cloth wrapping bands (11) are arranged between the oxygen isolation layer (10) and the protective sleeve layer (12).
5. A medium voltage fire resistant cable according to claim 4, characterized in that: the oxygen-insulating layer (10) is a low-smoke halogen-free flame-retardant olefin oxygen-insulating layer with an oxygen index larger than 38.
6. A medium voltage fire resistant cable according to claim 5, characterized in that: the insulating layer (3) is made of cross-linked polyethylene.
7. A medium voltage fire resistant cable according to claim 6, characterized in that: the first steel tape armor (13) and the second steel tape armor (15) are made of double-layer galvanized steel tapes.
8. A medium voltage fire resistant cable according to claim 7, characterized in that: the waterproof layer (7) is specifically an acrylic waterproof coating layer.
9. A medium voltage fire resistant cable according to claim 8, characterized in that: the thickness of the protective sleeve layer (12) is 2-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022033077.2U CN212907221U (en) | 2020-09-16 | 2020-09-16 | Medium-voltage fire-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022033077.2U CN212907221U (en) | 2020-09-16 | 2020-09-16 | Medium-voltage fire-resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212907221U true CN212907221U (en) | 2021-04-06 |
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ID=75257963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022033077.2U Expired - Fee Related CN212907221U (en) | 2020-09-16 | 2020-09-16 | Medium-voltage fire-resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212907221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117854819A (en) * | 2024-03-07 | 2024-04-09 | 金太阳电缆有限公司 | High-flame-retardant environment-friendly cable |
-
2020
- 2020-09-16 CN CN202022033077.2U patent/CN212907221U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117854819A (en) * | 2024-03-07 | 2024-04-09 | 金太阳电缆有限公司 | High-flame-retardant environment-friendly cable |
| CN117854819B (en) * | 2024-03-07 | 2024-06-07 | 金太阳电缆有限公司 | High-flame-retardant environment-friendly cable |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210406 |