CN220651691U - Tensile flame-retardant fire-resistant power cable - Google Patents
Tensile flame-retardant fire-resistant power cable Download PDFInfo
- Publication number
- CN220651691U CN220651691U CN202322334191.2U CN202322334191U CN220651691U CN 220651691 U CN220651691 U CN 220651691U CN 202322334191 U CN202322334191 U CN 202322334191U CN 220651691 U CN220651691 U CN 220651691U
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- Prior art keywords
- layer
- fire
- flame retardant
- sheath
- power cable
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- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 44
- 239000003063 flame retardant Substances 0.000 title claims abstract description 31
- 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 29
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 238000005253 cladding Methods 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000010445 mica Substances 0.000 claims description 4
- 229910052618 mica group Inorganic materials 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 73
- 239000011241 protective layer Substances 0.000 abstract description 12
- 230000001681 protective effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 4
- 239000002356 single layer Substances 0.000 description 4
- 241000238631 Hexapoda Species 0.000 description 1
- 241000699666 Mus <mouse, genus> Species 0.000 description 1
- 241000270295 Serpentes Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model relates to the technical field of cables and discloses a tensile flame-retardant fire-resistant power cable which comprises a guide core, wherein an insulating layer is coated on the outer part of the guide core, a metal shielding layer is coated on the outer part of the insulating layer, an inner fire-resistant layer is coated on the outer part of the metal shielding layer, an inner protection layer is coated on the outer part of the inner fire-resistant layer, a filling layer is arranged between the inner protection layer and the inner fire-resistant layer, an outer fire-resistant layer is coated on the outer part of the inner protection layer, an armor layer is coated on the outer part of the outer fire-resistant layer, an inner sheath is coated in the armor layer, an aramid fiber net is glued on the outer part of the inner sheath, and an outer sheath is glued on the outer part of the aramid fiber net. According to the utility model, the aramid fiber net is additionally arranged between the outer protective layers, so that the tensile resistance of the outer protective sleeve can be improved, and in addition, the fire resistance of the cable can be effectively improved by the double fire-resistant layers.
Description
Technical Field
The utility model belongs to the technical field of cables, and particularly relates to a tensile flame-retardant fire-resistant power cable.
Background
The power cable is mainly a cable for transmitting and distributing electric power. The cable is commonly used for outgoing lines of urban underground power grids and power stations, and the proportion of the cable in the power lines is gradually increased, so that the power cables with various performance types are generated, particularly the fire-resistant power cable is used as an outgoing line, and the fire-resistant performance is good and has stronger mechanical performance.
The tensile flame-retardant fire-resistant power cable disclosed in the publication No. CN115083680A is mainly characterized in that: the copper conductor is wrapped with a fire-resistant layer, the fire-resistant layer is wrapped with an insulating layer, the insulating layers are wrapped with wrapping bands, filler is filled between the wrapping bands and the insulating layers, an inner sheath is wrapped with the wrapping bands, the inner sheath is wrapped with a steel wire armor layer, and the steel wire armor layer is wrapped with an outer sheath.
In use of the cable in the above application, the applicant found that: the outer sheath of the cable is made of polyethylene or polyvinyl chloride and the like, the tensile capacity of the outer sheath is limited, the outer sheath is easy to pull, deform and even break, meanwhile, the structure adopts a single-layer fireproof layer structure, the fireproof time is limited, and in order to further improve the tensile and fireproof capacities of the cable, the tensile flame-retardant fireproof power cable is provided.
Disclosure of Invention
The utility model aims at: in order to solve the problems, a tensile flame-retardant fire-resistant power cable is provided.
The technical scheme adopted by the utility model is as follows: the utility model provides a fire-retardant fire-resistant power cable of tensile, includes leads the core, the outside cladding of leading the core has the insulating layer, the outside cladding of insulating layer has the metal shielding layer, the outside cladding of metal shielding layer has interior flame retardant coating, the outside cladding of interior flame retardant coating has interior sheath, interior sheath with be provided with the filling layer between the interior flame retardant coating, the outside cladding of interior sheath has the outer flame retardant coating, the outside cladding of outer flame retardant coating has the armor, the armor is reported to have the inner sheath, the outside of inner sheath is glued and is even to have the aramid fiber net, the outside of aramid fiber net is glued and is even to have the oversheath.
In a preferred embodiment, the guide core is made of copper.
In a preferred embodiment, the inner and outer refractory layers are wrapped with mica tape.
In a preferred embodiment, the insulating layer is made of rubber.
In a preferred embodiment, the armor layer is a mesh structure woven from steel wires
In a preferred embodiment, the inner sheath and the outer sheath are all made of polyethylene.
In a preferred embodiment, the filler layer is a flame retardant mineral compound filler.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. according to the utility model, the aramid fiber net is additionally arranged between the outer protective layer formed by the inner protective layer and the outer protective layer, so that the tensile strength of the whole outer protective layer is effectively improved by utilizing the aramid fiber net, the outer protective layer is less likely to be pulled and torn in use, and the anti-biting capacity of the outer protective layer is improved, so that the cable protection is further improved.
2. In the utility model, the inner fire-resistant layer and the outer fire-resistant layer form a double-channel fire-resistant structure, so that when a fire disaster occurs, the cable can last longer power transmission time than a common single-layer fire-resistant cable, and more time is left for people to escape from the fire scene.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure of the present utility model;
fig. 2 is a schematic cross-sectional view of the present utility model.
The marks in the figure: 1-guide core, 2-insulating layer, 3-metal shielding layer, 4-inner fire-resistant layer, 5-inner sheath, 6-filling layer, 7-outer fire-resistant layer, 8-armor layer, 9-inner sheath, 10-aramid fiber net, 11-outer sheath.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described in the following in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
A tensile flame retardant fire resistant power cable according to an embodiment of the present utility model will be described in detail with reference to fig. 1 to 2.
Examples:
the tensile flame-retardant fire-resistant power cable provided by the embodiment of the utility model, which is shown by referring to figures 1 and 2, comprises a guide core 1, wherein the guide core 1 is made of copper, and the electric conductivity of metallic copper is utilized for power transmission.
Referring to fig. 1 and 2, the outer portion of the guide core 1 is coated with an insulating layer 2, the insulating layer 2 is made of rubber, and the insulating layer 2 is used to insulate the guide core 1.
Referring to fig. 1 and 2, the outside of the insulating layer 2 is coated with a metal shielding layer 3, and this structure prevents interference signals from the inside of the cable from reaching the outside while preventing interference with other cables and even electrical equipment using the metal shielding layer 3.
Referring to fig. 1 and 2, the metal shielding layer 3 is coated with an inner refractory layer 4, the inner refractory layer 4 is formed by wrapping mica tapes, and the inner refractory layer 4 is used to form a refractory structure.
Referring to fig. 1 and 2, the inner refractory layer 4 is coated with an inner protective layer 5, the inner protective layer 5 is made of polyethylene, and the insulating layer 2, the metal shielding layer 3 and the refractory layer 4 are placed by the inner protective layer 5 to be wetted, so that mechanical damage or chemical erosion is avoided as much as possible.
Referring to fig. 1 and 2, a filling layer 6 is disposed between the inner protective layer 5 and the inner refractory layer 4, the filling layer 6 is a flame retardant mineral compound filler, the filling layer is used for supporting the guide core 1, and the function of protecting the guide core 1, the insulating layer 2, the inner refractory layer 4 and the metal shielding layer 3 is also achieved.
Referring to fig. 1 and 2, the outer part of the inner protective layer 5 is coated with an outer fire-resistant layer 7, the outer fire-resistant layer 7 is formed by wrapping mica tapes, the structure forms a double fire-resistant structure by utilizing the outer fire-resistant layer 7, and the double fire-resistant structure is realized by matching with the inner fire-resistant layer 4, so that when a fire disaster occurs, the cable can stand longer power transmission time than a common single-layer fire-resistant cable, and more time is left for a person to escape from the fire disaster site.
Referring to fig. 1 and 2, the outer part of the outer refractory layer 7 is coated with an armor layer 8, the armor layer 8 is a net structure woven by steel wires, the mechanical strength of the cable is improved by using the armor layer 8, the tensile strength and the compressive strength are mainly embodied, and the biting of snake, insect and mouse is prevented.
Referring to fig. 1 and 2, an inner sheath 9 is coated in an armor layer 8, an aramid fiber net 10 is glued and connected to the outer part of the inner sheath 9, an outer sheath 11 is glued and connected to the outer part of the aramid fiber net 10, both the inner sheath 9 and the outer sheath 11 are made of polyethylene, the inner sheath 9 and the outer sheath 11 of the structure form an outer sheath of a cable, the insulation performance of the cable is enhanced, meanwhile, the cable internal structure is prevented from being damaged, and the aramid fiber net 10 is additionally arranged between the inner sheath 9 and the outer sheath 11, so that the tensile strength of the whole outer sheath is effectively improved by utilizing the aramid fiber net 10, the outer sheath is not easy to tear in use, the anti-tearing capability of the outer sheath is improved, and the cable protection performance is further improved.
The implementation principle of the tensile flame-retardant fire-resistant power cable provided by the embodiment of the application is as follows: an aramid fiber net 10 is additionally arranged between the inner sheath 9 and the outer sheath 11, and the tensile strength of the whole outer sheath is effectively improved by utilizing the aramid fiber net 10, so that the outer sheath is less likely to be pulled and torn in use, the anti-biting capacity of the outer sheath is improved, and the cable protection is further improved;
therefore, when a fire disaster occurs, the inner fire resistant layer 4 and the outer fire resistant layer 7 form a double-channel fire resistant structure, so that the cable can last longer power transmission time than a common single-layer fire resistant cable, and more time is left for people to escape from the fire disaster site.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (7)
1. The utility model provides a fire-retardant fire-resistant power cable of tensile, includes leads core (1), its characterized in that: the outside cladding of lead core (1) has insulating layer (2), the outside cladding of insulating layer (2) has metal shielding layer (3), the outside cladding of metal shielding layer (3) has interior flame retardant coating (4), the outside cladding of interior flame retardant coating (4) has interior sheath (5), interior sheath (5) with be provided with filling layer (6) between interior flame retardant coating (4), the outside cladding of interior sheath (5) has outer flame retardant coating (7), the outside cladding of outer flame retardant coating (7) has armor (8), the cladding has inner sheath (9) in armor (8), the outside of inner sheath (9) is glued and is linked with aramid fiber net (10), the outside of aramid fiber net (10) is glued and is linked with oversheath (11).
2. A tensile flame retardant fire resistant power cable as defined in claim 1, wherein: the guide core (1) is made of copper.
3. A tensile flame retardant fire resistant power cable as defined in claim 1, wherein: the inner refractory layer (4) and the outer refractory layer (7) are formed by wrapping mica tapes.
4. A tensile flame retardant fire resistant power cable as defined in claim 1, wherein: the insulating layer (2) is made of rubber.
5. A tensile flame retardant fire resistant power cable as defined in claim 1, wherein: the armor layer (8) is a net structure woven by steel wires.
6. A tensile flame retardant fire resistant power cable as defined in claim 1, wherein: the inner sheath (5), the inner sheath (9) and the outer sheath (11) are all made of polyethylene materials.
7. A tensile flame retardant fire resistant power cable as defined in claim 1, wherein: the filling layer (6) is a flame-retardant mineral compound filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322334191.2U CN220651691U (en) | 2023-08-30 | 2023-08-30 | Tensile flame-retardant fire-resistant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322334191.2U CN220651691U (en) | 2023-08-30 | 2023-08-30 | Tensile flame-retardant fire-resistant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220651691U true CN220651691U (en) | 2024-03-22 |
Family
ID=90263386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322334191.2U Active CN220651691U (en) | 2023-08-30 | 2023-08-30 | Tensile flame-retardant fire-resistant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220651691U (en) |
-
2023
- 2023-08-30 CN CN202322334191.2U patent/CN220651691U/en active Active
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