CN214410851U - Flame-retardant cable - Google Patents
Flame-retardant cable Download PDFInfo
- Publication number
- CN214410851U CN214410851U CN202023274572.9U CN202023274572U CN214410851U CN 214410851 U CN214410851 U CN 214410851U CN 202023274572 U CN202023274572 U CN 202023274572U CN 214410851 U CN214410851 U CN 214410851U
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- Prior art keywords
- flame
- halogen
- protective layer
- retardant
- layer
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 53
- 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 title claims abstract description 45
- 239000010410 layer Substances 0.000 claims abstract description 42
- 239000011241 protective layer Substances 0.000 claims abstract description 37
- 230000001681 protective effect Effects 0.000 claims abstract description 36
- 239000000945 filler Substances 0.000 claims abstract description 30
- 239000004020 conductor Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 14
- 229920002635 polyurethane Polymers 0.000 claims abstract description 6
- 239000004814 polyurethane Substances 0.000 claims abstract description 6
- 230000009970 fire resistant effect Effects 0.000 claims description 5
- 239000000779 smoke Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims 1
- 230000005855 radiation Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 239000002341 toxic gas Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 229910052736 halogen Inorganic materials 0.000 abstract description 3
- 150000002367 halogens Chemical class 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 206010003497 Asphyxia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
Images
Classifications
-
- 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
Abstract
The utility model discloses a flame retardant cable, which comprises a conductor, the conductor is provided with the multiunit, and the multiunit conductor all wraps the insulating layer outward, wraps and is equipped with the inlayer flame retardant coating between the multiunit conductor, be equipped with the shielding filler in the inlayer flame retardant coating, inlayer flame retardant coating overcoat is equipped with the protective sheath of steamed material, the protective sheath overcoat is equipped with no halogen elastic sleeve, the supporting shoe that a plurality of and the inboard counterbalance of steamed elastic sleeve are installed outward to the protective sheath, it is equipped with waterproof area to steamed elastic sleeve overcoat, waterproof area overcoat is equipped with the inlayer sheath. The utility model discloses a setting of inlayer flame retardant coating, protective sheath, outer fire-retardant filler filling layer for this cable has the fire-retardant protective layer of three-layer, and, does not have the toxic gas that halogen-free elastic sleeve, the outer protective layer and the inlayer protective layer of halogen-free elastic polyurethane material produced when the cable burns, has realized a cable construction that fire behaviour is good.
Description
Technical Field
The utility model relates to a flame retarded cable.
Background
At present, with the rapid development of national economy, cables are widely applied to various power stations, such as nuclear power stations, thermal power stations and the like, and various fields such as subway stations, power plants, high-rise buildings, military facilities, oil platforms and the like, the cables are generally rope-like cables formed by twisting a plurality of or a plurality of groups of wires (at least two wires in each group), each group of wires are mutually insulated and are usually twisted around a center, and the whole outer surface is wrapped by a highly-insulated covering layer. The cable has the characteristics of internal electrification and external insulation. The cable includes power cable, compensation cable, shielding cable, flame-retardant cable, computer cable, signal cable, coaxial cable, fire-resistant cable, ship cable, mining cable, aluminum alloy cable and the like. They are composed of single-strand or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like, and are respectively applied to different occasions.
The common cable usually adopts a halogen-containing material such as a PVC insulating layer as a sheath layer, the structure is not compact, most importantly, once a fire disaster occurs, a great amount of dense smoke is generated by the combustion of the polyvinyl chloride insulated wire and cable, so that rescue workers and people in the disaster are often trapped by smoke and even die by suffocation, the rescue work is difficult to carry out, the rescue efficiency is low, meanwhile, the combustion of the halogen-containing material generates a great amount of toxic gas to pollute the atmosphere, and the usability of the cable is poor, so that the flame-retardant cable is proposed at present to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a flame retarded cable has solved the flame retarded cable problem that lacks a good usability among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a flame-retardant cable comprises conductors, wherein the conductors are provided with a plurality of groups, insulating layers are respectively coated outside the conductors, inner fireproof layers are coated among the conductors, the inner fireproof layer is internally provided with shielding filler, the inner fireproof layer is sleeved with a protective sleeve made of halogen-free material, the protective sleeve is sleeved with a halogen-free elastic sleeve, a plurality of supporting blocks which are propped against the inner side of the halogen-free elastic sleeve are arranged outside the protective sleeve, the halogen-free elastic sleeve is sleeved with a waterproof belt, the waterproof belt is sleeved with an inner layer sheath, the inner layer sheath is sleeved with an outer layer sheath, the protective sleeve comprises an outer protective layer, an inner protective layer and a support frame connected between the outer protective layer and the inner protective layer in a triangular structure, and the inner flame-retardant filler is filled between the outer protective layer and the inner protective layer.
Preferably, the shielding filler is XLPE insulating foil filament filling.
Preferably, the inner fireproof layer is made of flame-retardant fibers.
Preferably, outer protective layer and inlayer protective layer are halogen-free elastic polyurethane material and constitute, the support frame is the support bar structure that comprises fire-retardant material.
Preferably, the inner flame-retardant filler and the outer flame-retardant filler are both flame-retardant glass fiber fillers.
Preferably, the inner layer sheath and the outer layer sheath are both halogen-free low-smoke irradiation crosslinking flame-retardant polyolefin.
The utility model discloses possess following beneficial effect at least:
1. through the setting of inlayer flame retardant coating, protective sheath, outer fire-retardant filler filling layer for this cable has the fire-retardant protective layer of three-layer, and, the toxic gas that the cable produced when burning has been reduced to the outer protective layer and the inlayer protective layer of halogen-free elastic sleeve, halogen-free elastic polyurethane material, has realized a cable construction that fire behaviour is good.
2. Through the setting in waterproof area for the cable has good waterproof performance, by outer protective layer, be the support frame of triangle-shaped structure, inlayer protective layer to and the protective sheath structure that the fire-retardant filler of inlayer constitutes, and the setting of the supporting shoe outside the protective sheath, improved the buffer capacity of cable, make the cable have fine anti extrusion ability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
FIG. 1 is a schematic cross-sectional view of a flame retardant cable;
FIG. 2 is a schematic view of the outer structure of the protective sheath;
figure 3 is a schematic cross-sectional view of the protective sheath.
In the figure: 1. a conductor; 2. an insulating layer; 3. a shielding filler; 4. an inner fire-resistant layer; 5. a protective sleeve; 501. an outer protective layer; 502. an inner protective layer; 503. a support frame; 504. inner flame-retardant filler; 6. a support block; 7. a halogen-free elastic sleeve; 8. a waterproof tape; 9. an inner jacket; 10. outer flame-retardant filler; 11. and an outer sheath.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, a flame retardant cable comprises conductors 1, the conductors 1 are provided with a plurality of groups, the plurality of groups of conductors 1 are all wrapped by insulating layers 2, inner fireproof layers 4 are wrapped between the plurality of groups of conductors 1, shielding fillers 3 are arranged in the inner fireproof layers 4, a protective sleeve 5 made of halogen-free materials is sleeved outside the inner fireproof layers 4, a halogen-free elastic sleeve 7 is sleeved outside the protective sleeve 5, a plurality of supporting blocks 6 abutting against the inner side of the halogen-free elastic sleeve 7 are arranged outside the protective sleeve 5, a waterproof tape 8 is sleeved outside the halogen-free elastic sleeve 7, an inner protective sleeve 9 is sleeved outside the waterproof tape 8, an outer protective sleeve 11 is sleeved outside the inner protective sleeve 9, outer flame retardant fillers 10 are arranged on the inner protective sleeve 9 and the outer protective sleeve 11, the protective sleeve 5 comprises an outer protective layer 501, an inner protective layer 502 and a support 503 connected between the outer protective layer 501 and the inner protective layer 502 in a triangular structure, an inner flame-retardant filler 504 is filled between the outer protective layer 501 and the inner protective layer 502.
Specifically, as shown in fig. 1 to 3, the shielding filler 3 is XLPE insulating foil wire filler, and is used for current shielding of the plurality of conductors 1 installed in the inner fireproof layer 4, so as to improve the stability of the operation of each conductor 1.
Specifically, as shown in fig. 1 to 3, the inner fireproof layer 4 is made of flame retardant fibers, and the inner fireproof layer 4 is made of an elastic material made of flame retardant fibers, so as to protect the first layer of the inner side of the cable from flame.
Specifically, as shown in fig. 1-3, the outer protective layer 501 and the inner protective layer 502 are both made of halogen-free elastic polyurethane, the supporting frame 503 is a supporting strip structure protective sleeve 5 made of flame-retardant material, which has the flame-retardant protection function on the second layer of the cable, on the one hand, the protective sleeve 5 of the composite structure is arranged, so that the anti-extrusion capability of the cable is improved, and the generation of toxic gas during combustion can be reduced due to the arrangement of the halogen-free material.
Specifically, as shown in fig. 1 to 3, the inner flame-retardant filler 504 and the outer flame-retardant filler 10 are both flame-retardant glass fiber fillers, and the outer flame-retardant filler 10 is the third flame-retardant protection layer of the cable.
Specifically, as shown in fig. 1-3, the inner layer sheath 9 and the outer layer sheath 11 are both halogen-free low-smoke irradiation cross-linked flame-retardant polyolefin, and the flame retardant capability of the outer layer of the cable is further improved due to the arrangement of the inner layer sheath 9 and the outer layer sheath 11.
To sum up, this cable has the fire-retardant protective layer of three-layer, and the setting of waterproof area 8 moreover for the cable has good waterproof performance, the anti extrusion ability of cable has been improved in the setting of the outer supporting shoe 6 of protective sheath 5 and protective sheath 5, and moreover, there is not steamed elastic sleeve 7, there is not outer protective layer 501 and the inlayer protective layer 502 of steamed elastic polyurethane material that have reduced the toxic gas that the cable produced when burning, realized a waterproof, anti extrusion, cable construction that fire behaviour is good.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The flame-retardant cable comprises conductors (1) and is characterized in that the conductors (1) are provided with a plurality of groups, insulating layers (2) are wrapped outside the conductors (1), inner fireproof layers (4) are wrapped among the conductors (1), shielding fillers (3) are arranged in the inner fireproof layers (4), protective sleeves (5) made of halogen-free materials are sleeved outside the inner fireproof layers (4), halogen-free elastic sleeves (7) are sleeved outside the protective sleeves (5), a plurality of supporting blocks (6) which are abutted against the inner sides of the halogen-free elastic sleeves (7) are mounted outside the protective sleeves (5), waterproof belts (8) are sleeved outside the halogen-free elastic sleeves (7), inner protective sleeves (9) are sleeved outside the waterproof belts (8), outer protective sleeves (11) are sleeved outside the inner protective sleeves (9), outer flame-retardant fillers (10) are arranged inside the inner protective sleeves (9) and the outer protective sleeves (11), the protective sleeve (5) comprises an outer protective layer (501), an inner protective layer (502) and a support frame (503) connected between the outer protective layer (501) and the inner protective layer (502) in a triangular structure, and an inner flame-retardant filler (504) is filled between the outer protective layer (501) and the inner protective layer (502).
2. A fire-retardant cable according to claim 1, characterized in that said shielding filler (3) is XLPE insulating foil filament filler.
3. A fire-resistant cable according to claim 1, characterized in that the inner fire-resistant layer (4) is made of fire-resistant fibers.
4. The flame-retardant cable according to claim 1, wherein the outer protective layer (501) and the inner protective layer (502) are made of halogen-free elastic polyurethane, and the supporting frame (503) is a supporting bar structure made of flame-retardant material.
5. A flame retardant cable according to claim 1, wherein the inner flame retardant filler (504) and the outer flame retardant filler (10) are both flame retardant glass filament fillers.
6. A flame retardant cable according to claim 1, wherein the inner sheath (9) and the outer sheath (11) are both halogen-free low smoke radiation cross-linked flame retardant polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023274572.9U CN214410851U (en) | 2020-12-30 | 2020-12-30 | Flame-retardant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023274572.9U CN214410851U (en) | 2020-12-30 | 2020-12-30 | Flame-retardant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214410851U true CN214410851U (en) | 2021-10-15 |
Family
ID=78042422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023274572.9U Active CN214410851U (en) | 2020-12-30 | 2020-12-30 | Flame-retardant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214410851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114758825A (en) * | 2022-03-23 | 2022-07-15 | 国动网络通信集团山东有限公司 | Outdoor long-distance laying high-strength communication cable |
-
2020
- 2020-12-30 CN CN202023274572.9U patent/CN214410851U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114758825A (en) * | 2022-03-23 | 2022-07-15 | 国动网络通信集团山东有限公司 | Outdoor long-distance laying high-strength communication cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Flame retardant cable Effective date of registration: 20221214 Granted publication date: 20211015 Pledgee: Agricultural Bank of China Limited Changsha Lushan Sub branch Pledgor: HUNAN XIANGJIANG CABLES CO.,LTD. Registration number: Y2022430000112 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231220 Granted publication date: 20211015 Pledgee: Agricultural Bank of China Limited Changsha Lushan Sub branch Pledgor: HUNAN XIANGJIANG CABLES CO.,LTD.|HUBEI NANYUAN CABLE TECHNOLOGY Co.,Ltd.|JIANGXI NANYUAN CABLE Co.,Ltd. Registration number: Y2022430000112 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A flame-retardant cable Effective date of registration: 20231227 Granted publication date: 20211015 Pledgee: Agricultural Bank of China Limited Changsha Lushan Sub branch Pledgor: HUNAN XIANGJIANG CABLES CO.,LTD.|HUBEI NANYUAN CABLE TECHNOLOGY Co.,Ltd.|JIANGXI NANYUAN CABLE Co.,Ltd. Registration number: Y2023980074911 |