CN220367770U - Fireproof cable for alarm - Google Patents
Fireproof cable for alarm Download PDFInfo
- Publication number
- CN220367770U CN220367770U CN202320664160.0U CN202320664160U CN220367770U CN 220367770 U CN220367770 U CN 220367770U CN 202320664160 U CN202320664160 U CN 202320664160U CN 220367770 U CN220367770 U CN 220367770U
- Authority
- CN
- China
- Prior art keywords
- layer
- conductor
- mica tape
- outer side
- fire
- 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
- 239000010445 mica Substances 0.000 claims abstract description 28
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 28
- 239000004020 conductor Substances 0.000 claims abstract description 26
- 239000011248 coating agent Substances 0.000 claims abstract description 14
- 238000000576 coating method Methods 0.000 claims abstract description 14
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 13
- 239000010703 silicon Substances 0.000 claims abstract description 13
- 229910052628 phlogopite Inorganic materials 0.000 claims abstract description 12
- 239000011230 binding agent Substances 0.000 claims abstract description 7
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 230000009970 fire resistant effect Effects 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 239000000779 smoke Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 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 description 4
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 4
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 4
- 239000003063 flame retardant Substances 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims 12
- 239000011247 coating layer Substances 0.000 claims 1
- 238000002474 experimental method Methods 0.000 abstract description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model relates to the technical field of power cables, in particular to a fireproof cable for alarm. The high-silicon inorganic adhesive comprises a conductor, wherein a layer of calcined mica tape is wrapped on the outer side of the conductor, the conductor is adhered to the calcined mica tape through a high-silicon inorganic adhesive coating containing phlogopite, and an insulating layer is wrapped on the outer side of the calcined mica tape; the conductor, the calcined mica tape and the insulating layer form a wire core part, at least two paths of wires are arranged on the wire core part, and an envelope layer is coated on the outer side of the wire core part. Aiming at the technical problem of low passing rate of the traditional cable fire resistance experiment, the utility model coats a layer of high-silicon inorganic binder doped with phlogopite outside the conductor, and wraps a layer of calcined mica tape after coating, so that the whole cable has excellent fire resistance.
Description
Technical Field
The utility model relates to the technical field of power cables, in particular to a fireproof cable for alarm.
Background
The cable that automatic alarm system of conflagration used requires the fire prevention, and the fire-resistant cable of special export all requires to pass through CWZ test requirement in BS6387, and former flame retardant coating adopts 2 layers of laminated mica tape to wrap up, in order to satisfy the fire prevention requirement, optimizes the flame retardant coating technology. The common fire-resistant structure is wrapped with 2 layers of laminated mica tapes, and when the CWZ fire-resistant test in BS6387 is carried out, the passing rate of the C test and the Z test is higher, but the passing rate of the W test is very low.
Disclosure of Invention
Technical problem to be solved by the utility model
Aiming at the technical problem of low passing rate of the traditional cable fire resistance experiment, the utility model provides a fireproof cable for alarm, which is characterized in that a layer of high-silicon inorganic binder doped with phlogopite is coated outside a conductor, and a layer of calcined mica tape is wrapped after coating, so that the whole cable has excellent fire resistance.
Technical proposal
In order to solve the problems, the technical scheme provided by the utility model is as follows:
the fireproof cable for the alarm comprises a conductor, wherein a layer of calcined mica tape is wrapped on the outer side of the conductor, the conductor is bonded with the calcined mica tape through a high-silicon inorganic adhesive coating containing phlogopite, and an insulating layer is wrapped on the outer side of the calcined mica tape; the conductor, the calcined mica tape and the insulating layer form a wire core part, at least two paths of wires are arranged on the wire core part, and an envelope layer is coated on the outer side of the wire core part.
Optionally, the high silicon inorganic binder coating containing phlogopite has a thickness of 0.15±0.02mm.
Optionally, the calcined mica tape has a lap rate of 40% to 50%.
Optionally, the insulating layer is made of crosslinked polyethylene insulating material.
Optionally, a filling rope is arranged between the wire core and the envelope layer.
Optionally, the envelope layer includes a shielding layer, the shielding layer is wrapped in the outside of the wire core portion, and an outer sheath is wrapped in the outside of the shielding layer.
Optionally, a tinned copper wire drainage wire is embedded in the shielding layer.
Optionally, the shielding layer adopts an aluminum-plastic composite belt.
Optionally, the outer sheath is made of high-flame-retardance low-smoke halogen-free polyolefin sheath material.
Optionally, the conductor is a copper conductor.
Advantageous effects
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:
aiming at the technical problem of low passing rate of the traditional cable fire resistance experiment, the utility model coats a layer of high-silicon inorganic binder doped with phlogopite outside the conductor, and wraps a layer of calcined mica tape after coating, so that the whole cable has excellent fire resistance.
Drawings
Fig. 1 is a schematic structural diagram of a fireproof cable for alarm according to an embodiment of the present utility model.
Detailed Description
For a further understanding of the present utility model, the present utility model will be described in detail with reference to the drawings and examples.
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings. The first, second, etc. words are provided for convenience in describing the technical scheme of the present utility model, and have no specific limitation, and are all generic terms, and do not constitute limitation to the technical scheme of the present utility model. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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. The technical schemes in the same embodiment and the technical schemes in different embodiments can be arranged and combined to form a new technical scheme without contradiction or conflict, which is within the scope of the utility model.
Example 1
Referring to fig. 1, this embodiment provides a fireproof cable for alarm, which includes a conductor 1, wherein a layer of calcined mica tape 2 is wrapped on the outer side of the conductor 1, the conductor 1 and the calcined mica tape 2 are bonded by a high-silicon inorganic adhesive coating containing phlogopite, and an insulating layer 3 is wrapped on the outer side of the calcined mica tape 2; the conductor 1, the calcined mica tape 2 and the insulating layer 3 form a wire core, at least two paths of wires are arranged on the wire core, and an envelope layer is coated on the outer side of the wire core.
According to the fireproof cable for the alarm, a layer of high-silicon inorganic adhesive doped with phlogopite is coated outside the conductor 1, and a layer of calcined mica tape 2 is wrapped after coating, so that the whole cable has excellent fireproof performance.
Compared with a fire-resistant structure of a laminated mica tape of a wrapping 2 layer used by a common cable, the fire-resistant structure can pass through the CWZ test requirement in BS6387 with higher passing rate, particularly the W method test, namely the fire-resistant test of being subjected to fire for 30min at the temperature of 650+/-40 ℃ and water spraying for 15 min.
In this embodiment, the core portion has two ways at least, and the quantity and the current-carrying capability of line core portion correspond, and the envelope layer of core portion outside cladding is the crust of warning fire prevention cable, and conceivable, the envelope layer can select to use the material that has fire resistance and low smoke and zero halogen environmental protection performance, satisfies personnel concentrated, the user demand in the high important place of security requirement.
As an alternative embodiment of this example, the high silicon inorganic binder coating containing phlogopite has a thickness of 0.15.+ -. 0.02mm. This example is a preferred arrangement of the high silicon inorganic binder coating containing phlogopite, and if the thickness is too thin, coating non-uniformity is likely to occur, which is detrimental to the passing of the fire resistance test, and if the thickness is too thick, the manufacturing cost is too high, so that the thickness is preferably 0.15±0.02mm.
As an alternative to this example, the calcined mica tape 2 has a lap rate of 40% to 50%. In this embodiment, the calcined mica tape 2 is arranged in such a manner that the coverage rate of the calcined mica tape 2 is too small to ensure high pass rate of the fire resistance test, and the production cost of the excessive coverage is too high, so that the coverage rate is preferably 40% -50%.
As an alternative to this embodiment, the insulating layer 3 is made of a crosslinked polyethylene insulating material. In this embodiment, the insulating layer 3 is made of a crosslinked polyethylene insulating material, which has good heat resistance and can achieve good insulating effect.
As an alternative implementation manner of this embodiment, a filling rope 4 is arranged between the wire core portion and the envelope layer. In this embodiment, through the setting of filling rope 4 for the overall arrangement of line core keeps stable, has promoted the stability of the fireproof cable overall structure for the alarm.
As an alternative implementation manner of this embodiment, the envelope layer includes a shielding layer 5, the shielding layer 5 is wrapped on the outer side of the wire core, and an outer sheath 7 is wrapped on the outer side of the shielding layer 5. The embodiment is a setting mode of envelope layer, wherein, shielding layer 5 is used for realizing insulating shielding, and oversheath 7 is the surface of fireproof cable for the alarm for playing the guard action.
Example 2
With reference to fig. 1, this embodiment provides a fireproof cable for alarm, which can be modified on the basis of embodiment 1 as follows: the shielding layer 5 is embedded with a tinned copper wire drainage wire 6. In this embodiment, the tin-plated copper wire drainage wire 6 is embedded in the shielding layer 5 to play a role in drainage.
As an alternative implementation manner of this embodiment, the shielding layer 5 is an aluminum plastic composite belt.
As an alternative implementation of this example, the outer sheath 7 is made of a high flame retardant low smoke halogen free polyolefin sheath material. In the embodiment, the outer sheath 7 is made of high-flame-retardance low-smoke halogen-free polyolefin sheath material, and the whole structure is designed to meet the flame retardance and the low-smoke halogen-free environment-friendly performance.
As an alternative implementation of this embodiment, the conductor 1 is a copper conductor 1.
The utility model and its embodiments have been described above by way of illustration and not limitation, and the utility model is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.
Claims (10)
1. The fireproof cable for the alarm is characterized by comprising a conductor, wherein a layer of calcined mica tape is wrapped on the outer side of the conductor, the conductor is bonded with the calcined mica tape through a high-silicon inorganic adhesive coating containing phlogopite, and an insulating layer is wrapped on the outer side of the calcined mica tape; the conductor, the calcined mica tape and the insulating layer form a wire core part, at least two paths of wires are arranged on the wire core part, and an envelope layer is coated on the outer side of the wire core part.
2. The fire-resistant cable for alarm according to claim 1, wherein the high-silicon inorganic binder coating layer containing phlogopite has a thickness of 0.15±0.02mm.
3. A fire-resistant cable according to claim 1, characterized in that the calcined mica tape has a lap rate of 40 to 50%.
4. The fire-resistant cable according to claim 1, wherein the insulating layer is made of a crosslinked polyethylene insulating material.
5. A fire-resistant cable according to claim 1, characterized in that a filling rope is arranged between the wire core and the envelope layer.
6. The fireproof cable for alarming according to claim 1, wherein the envelope layer comprises a shielding layer, the shielding layer is coated on the outer side of the wire core part, and an outer sheath is coated on the outer side of the shielding layer.
7. The fire protection cable for an alarm according to claim 6, wherein the shielding layer is embedded with a tin-plated copper wire drainage wire.
8. The fire protection cable of claim 6, wherein the shielding layer is made of aluminum-plastic composite tape.
9. The fire-resistant cable according to claim 6, wherein the outer sheath is made of a high flame-retardant low-smoke halogen-free polyolefin sheath material.
10. A fire protection cable for an alarm according to any one of claims 1-9, characterized in that said conductor is a copper conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320664160.0U CN220367770U (en) | 2023-03-27 | 2023-03-27 | Fireproof cable for alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320664160.0U CN220367770U (en) | 2023-03-27 | 2023-03-27 | Fireproof cable for alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220367770U true CN220367770U (en) | 2024-01-19 |
Family
ID=89518104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320664160.0U Active CN220367770U (en) | 2023-03-27 | 2023-03-27 | Fireproof cable for alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220367770U (en) |
-
2023
- 2023-03-27 CN CN202320664160.0U patent/CN220367770U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |