CN221040608U - Flame-retardant RVV composite cable - Google Patents
Flame-retardant RVV composite cable Download PDFInfo
- Publication number
- CN221040608U CN221040608U CN202322541536.1U CN202322541536U CN221040608U CN 221040608 U CN221040608 U CN 221040608U CN 202322541536 U CN202322541536 U CN 202322541536U CN 221040608 U CN221040608 U CN 221040608U
- Authority
- CN
- China
- Prior art keywords
- layer
- wall
- insulating layer
- flame
- retardant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 50
- 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 41
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 24
- 239000004698 Polyethylene Substances 0.000 claims abstract description 4
- 239000006260 foam Substances 0.000 claims abstract description 4
- -1 polyethylene Polymers 0.000 claims abstract description 4
- 229920000573 polyethylene Polymers 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 5
- 239000013464 silicone adhesive Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 239000004568 cement Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 62
- 238000002485 combustion reaction Methods 0.000 description 7
- 230000003139 buffering effect Effects 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002508 compound effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model relates to the field of RVV composite cables, and discloses a flame-retardant RVV composite cable which comprises an insulating layer, wherein one end of the outer side of the insulating layer is fixedly connected with an inner fire-retardant layer, the inner wall of the inner fire-retardant layer is provided with a cavity, the inside of the cavity is in a vacuum state, the inner diameter of the insulating layer is fixedly connected with a plurality of shielding layers, one sides of the inner walls of the shielding layers, which are close to the inner walls of the insulating layer, are respectively provided with a metal wire core, the center of the inner walls of the insulating layer is provided with a flexible metal supporting rod, the inner walls of the insulating layer, which are close to the shielding layers and the outer walls of the flexible metal supporting rods, are filled with buffer filling materials, and the buffer filling materials are polyethylene foam. According to the utility model, the inner flame-retardant layer and the outer flame-retardant layer are arranged, so that the inner flame-retardant layer prevents the cable from burning from the inside to the outside to influence other cable structures to cause a larger range of fire, effectively inhibits the propagation of flame, prevents the inner core from being damaged due to the fact that the external fire propagates to the inner layer of the cable, and improves the use safety of the cable.
Description
Technical Field
The utility model relates to the field of RVV composite cables, in particular to a flame-retardant RVV composite cable.
Background
RVV composite cable is a multicore flexible cable, is often used in low pressure, indoor fixed wiring's place, and is usually constituteed by a plurality of sinle silk, and the composite construction cable of various different types of cable structure and function constitution can be integrated different kinds of cable in a unified sleeve pipe to satisfy the multiple demand of specific application.
RVV composite cable in the present market is in the high temperature weather of meeting or outside emergence conflagration leads to the outside burning of cable to take place and leads to the damage of cable inside sinle silk, and then causes great economic loss to the cable also probably inside takes place to burn because of reasons such as electric arc, if the fire stretches to outside and can lead to other cable structures to burn and then lead to the fire to further stretch, causes bigger economic loss.
Disclosure of utility model
The utility model aims to solve the defects in the prior art and provides a flame-retardant RVV composite cable.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a fire-retardant RVV composite cable, includes the insulating layer, insulating layer outside one end fixedly connected with is interior flame retardant coating, interior flame retardant coating inner wall is provided with the cavity, the inside vacuum state that is of cavity, insulating layer internal diameter fixedly connected with a plurality of shielding layer, shielding layer inner wall is close to insulating layer inner wall one side all is provided with the metal core, insulating layer inner wall center department is provided with flexible metal support pole, insulating layer inner wall is close to shielding layer and flexible metal support pole outer wall packing and has buffering filler material, buffering filler material selects the polyethylene foam.
As a further description of the above technical solution:
and one end of the outer side of the inner resistance layer is fixedly connected with a heat insulation layer.
As a further description of the above technical solution:
and one end of the outer side of the heat insulation layer is fixedly connected with an outer flame retardant layer.
As a further description of the above technical solution:
And one end of the outer side of the outer flame retardant layer is fixedly connected with a wear-resistant and corrosion-resistant layer.
As a further description of the above technical solution:
and the inner wall of the shielding layer is close to the outer wall of the metal wire core and is filled with flame-retardant filling materials, and the flame-retardant filling materials are silicone adhesive.
As a further description of the above technical solution:
The outer wall surface of the flexible metal support rod is not contacted with one end of the inner side of the outer wall of the shielding layer.
As a further description of the above technical solution:
The shielding layers and the metal wire cores are symmetrically distributed along the central line on the inner wall of the insulating layer.
The utility model has the following beneficial effects:
According to the utility model, the inner flame-retardant layer and the outer flame-retardant layer are arranged, the cavity is arranged on the inner wall of the inner flame-retardant layer, if the inner wire core of the cable is burnt, the inner flame-retardant layer can meet the vacuum cavity to be naturally extinguished after being burnt by fire, so that the effect of internal flame retardance is achieved, the inner combustion of the cable is prevented from affecting other cable structures to cause a larger range of fire, the outer flame-retardant layer is made of a magnesium plate material, and the magnesium plate material can absorb heat and release oxygen rapidly to form a protective layer, so that the propagation of flame is effectively inhibited, the inner wire core is prevented from being damaged due to the fact that the external fire propagates to the inner layer of the cable, and the use safety of the cable is improved.
Drawings
Figure 1 is a perspective view of a flame retardant RVV composite cable according to the present utility model;
figure 2 is a cross-sectional view of a flame retardant RVV composite cable according to the present utility model;
Figure 3 is a cross-sectional view of an inner flame retardant RVV composite cable according to the present utility model.
Legend description:
1. A wear-resistant corrosion-resistant layer; 2. an outer flame retardant layer; 3. a thermal insulation layer; 4. an insulating layer; 5. buffering the filling material; 6. a shielding layer; 7. a metal wire core; 8. a flexible metal support rod; 9. a flame retardant filler material; 10. an inner flame retardant layer; 11. a cavity.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only 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.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-3, one embodiment provided by the present utility model is: the utility model provides a fire-retardant RVV composite cable, including insulating layer 4, insulating layer 4 outside one end fixedly connected with is internal combustion layer 10, internal combustion layer 10 inner wall is provided with cavity 11, cavity 11 inside is the vacuum state, if the inside metal core 7 of cable takes place to burn, the fire will meet vacuum cavity 11 and go out naturally after burning of internal combustion layer 10 inlayer, reach inside fire-retardant effect, prevent the inside fire-retardant effect of cable to outside influence other cable structure and cause the conflagration of bigger scope, insulating layer 4 internal diameter fixedly connected with a plurality of shielding layer 6, shielding layer 6 selects copper mesh woven material, can guarantee the signal transmission each other between each metal core 7 and not influence, shielding layer 6 inner wall is close to insulating layer 4 inner wall one side all is provided with metal core 7, the inside metal core 7 of every shielding layer 6 carries out different functions, do not influence each other, reach the compound effect, insulating layer 4 inner wall center department is provided with flexible metal bracing piece 8, insulating layer 4 inner wall is close to shielding layer 6 and flexible metal bracing piece 8 outer wall is filled with buffering filler material 5, buffering filler material 5 selects the polyethylene foam, can reduce in the cable transportation and during installation physical impact and the bending, and each metal core 7 extrusion is prevented each other from damaging each other.
The heat insulation layer 3 is fixedly connected to one end of the outer side of the inner flame retardant layer 10, a silicone rubber material is selected, so that the inside and the outside of the cable cannot be mutually influenced due to temperature rise or reduction, the outer flame retardant layer 2 is fixedly connected to one end of the outer side of the heat insulation layer 3, a magnesium plate material is selected, the heat absorption and the oxygen release can be quickly carried out, a protective layer is formed, flame propagation is effectively restrained, the outer flame is prevented from spreading to the inner side of the cable, the damage of an inner metal wire core 7 is prevented from being caused, the wear-resistant anti-corrosion layer 1 is fixedly connected to one end of the outer flame retardant layer 2, a polyvinyl chloride material is selected, the cable can be effectively protected from being influenced by mechanical abrasion and chemical corrosion, the service life of the cable is prolonged, flame retardant filling materials 9 are respectively filled in the inner wall of the shielding layer 6, the outer wall of the shielding layer 7 is close to the outer wall of the metal wire core 7, the flame retardant filling materials 9 are selected from silicone adhesive, good adhesion and sealing performance are achieved, flame spreading can be effectively prevented, the outer wall surface of the flexible metal support rod 8 and the inner side of the shielding layer 6 are not contacted with one end of the inner side of the outer wall of the shielding layer 7, the shielding layer 6 and the metal wire core 7 are uniformly distributed symmetrically along the central line, and the inner wall of the insulating layer 4 is reasonably prevented from being deformed.
Working principle: firstly, through having set up internal combustion layer 10 and outer fire-retardant layer 2, internal combustion layer 10 inner wall is provided with cavity 11 and is the vacuum state, if the inside metal core 7 of cable takes place to burn, the fire will meet vacuum cavity 11 and go out naturally after burning of internal combustion layer 10 inlayer, reach the fire-retardant effect of inside, prevent that the inside burning of cable from influencing other cable structures and causing the conflagration of bigger scope to outside, outer fire-retardant layer 2 selects the magnesium board material, it can absorb heat fast and release oxygen, form one deck protective layer, inhibit the propagation of flame effectively, prevent that outside fire from spreading to the cable inlayer and lead to inside metal core 7 damage.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. Flame retardant RVV composite cable, including insulating layer (4), its characterized in that: the utility model discloses a high-pressure insulation device for the plastic cement, including insulating layer (4), inner wall, buffer filling material (5), insulating layer (4) inner wall, metal core (7) are all provided with in insulating layer (4) outside one end fixedly connected with, inner wall (10) of inner wall (10), inner wall (11) are provided with cavity (11), inside vacuum state that is of cavity (11), insulating layer (4) internal diameter fixedly connected with a plurality of shielding layer (6), shielding layer (6) inner wall is close to insulating layer (4) inner wall one side, insulating layer (4) inner wall center department is provided with flexible metal bracing piece (8), insulating layer (4) inner wall is close to shielding layer (6) and flexible metal bracing piece (8) outer wall packing has buffer filling material (5), buffer filling material (5) select polyethylene foam.
2. A flame retardant RVV composite cable according to claim 1, characterized in that: one end of the outer side of the inner resistance layer (10) is fixedly connected with a heat insulation layer (3).
3. A flame retardant RVV composite cable according to claim 2, characterized in that: one end of the outer side of the heat insulation layer (3) is fixedly connected with an outer flame retardant layer (2).
4. A flame retardant RVV composite cable according to claim 3, characterized in that: one end of the outer side of the outer flame-retardant layer (2) is fixedly connected with a wear-resistant anti-corrosion layer (1).
5. A flame retardant RVV composite cable according to claim 1, characterized in that: the inner wall of the shielding layer (6) is close to the outer wall of the metal wire core (7) and is filled with flame-retardant filling materials (9), and the flame-retardant filling materials (9) are silicone adhesive.
6. A flame retardant RVV composite cable according to claim 1, characterized in that: the surface of the outer wall of the flexible metal support rod (8) is not contacted with one end of the inner side of the outer wall of the shielding layer (6).
7. A flame retardant RVV composite cable according to claim 1, characterized in that: the shielding layers (6) and the metal wire cores (7) are symmetrically distributed along the central line on the inner wall of the insulating layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322541536.1U CN221040608U (en) | 2023-09-19 | 2023-09-19 | Flame-retardant RVV composite cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322541536.1U CN221040608U (en) | 2023-09-19 | 2023-09-19 | Flame-retardant RVV composite cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221040608U true CN221040608U (en) | 2024-05-28 |
Family
ID=91172321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322541536.1U Active CN221040608U (en) | 2023-09-19 | 2023-09-19 | Flame-retardant RVV composite cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221040608U (en) |
-
2023
- 2023-09-19 CN CN202322541536.1U patent/CN221040608U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |