CN208689973U - A kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging - Google Patents
A kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging Download PDFInfo
- Publication number
- CN208689973U CN208689973U CN201820942528.4U CN201820942528U CN208689973U CN 208689973 U CN208689973 U CN 208689973U CN 201820942528 U CN201820942528 U CN 201820942528U CN 208689973 U CN208689973 U CN 208689973U
- Authority
- CN
- China
- Prior art keywords
- fire
- layer
- metal
- wrapped
- cable
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of fire-retardant 1 grade of B1 cables of wrapped metal tape fire lagging, belong to technical field of electric wires and cables.A kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging of the utility model, including insulated wire cores, metal screen layer, oxygen barrier layer, metal fireproof separation layer, outer jacket.It is characterized by: the insulated wire cores are made of copper conductor, refractory insulating layer, insulating layer；The metal screen layer is metal wire knitted or the wrapped composition of metal tape；The oxygen barrier layer is the low-smoke halide-free fireproof composite polyolefine material that high fire-retardance is squeezed out on extruding machine；The metal fireproof separation layer is the metal fireproof layer using the wrapped composition of metal tape；The oversheath is that low-smoke and halogen-free flame retardant polyolefin jacket material is squeezed out on extruding machine.A kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging of the utility model can be effectively isolated flame using metal fireproof separation layer, make that the combustible inside cable core will not be burnt when cable fire within a certain period of time, play good fire prevention isolating power.
Description
Technical field
The utility model relates to cable production arts, are a kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging
Structure design.
Background technique
Since 2014, European Union planned indoor electric power, communication, control cable to receive just in building laws
The release of fireproofing of cable performance and harmful substance is asked all to have to comply with EU criteria.Meanwhile domestic Ministry of Public Security Sichuan fire house
Joint bid committee is proposed GB 31247-2014, carries out classification system for fire performance for cable and optical cable.The standard and EN50575
It is equivalent, domestic market is impacted very big.
Regulation in new edition " design of civil buildings specification ": super high-rise building should select B1 grades of combustibility or more,
The electric wire and cable that toxicity of tobacco production is t0 grades, density flaming droplet/particulate class is d0 grades；First class high storey building and densely populated place
Public place should select B1 grades of combustibility, toxicity of tobacco production for t1 grades, the wire and cable that density flaming droplet/particulate class is d1 grades
Requirement.
State Intellectual Property Office disclosed a Publication No. 107799215A on 03 13rd, 2018, and entitled " one
The patent of invention of kind flame retardant cable ", the invention are related to a kind of flame retardant cable, have copper conductor, the outer surface of the copper conductor
On be coated with flame retardant coating, insulating layer is provided on flame retardant coating, is provided with color separation item on insulating layer, packet attachment is oxygen barrier on insulating layer
Layer, the outer surface of oxygen barrier layer is provided with steel-tape armouring layer, outer jacket is coated on steel-tape armouring layer, is coated with waterproof on outer jacket
Layer.The jacket material of the invention, oxygen barrier layer material will not expand rapidly and be sintered to form one layer of hard shell in burning,
So as to protection cable built-in electrical insulation and combustible, it is not able to satisfy the requirement of the B1 grade combustibility of GB 31247.
Utility model content
The purpose of this utility model is to be to overcome above-mentioned technological deficiency, and it is anti-that the utility model provides a kind of wrapped metal tape
Fire-retardant 1 grade of B1 cable of fire screen absciss layer, the cable are not only able to satisfy the B1 grade combustibility of GB 31247, and can guarantee product sheet
Body basic performance meets national Specification, do not influence the electrical property of cable, bending property, ageing properties, mechanical performance and
Cable installation performance etc..
In order to solve above-mentioned problems of the prior art, the utility model is achieved through the following technical solutions:
A kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging, including insulated wire cores, metal screen layer, oxygen barrier layer, metal are anti-
Fire screen absciss layer, outer jacket.It is characterized by: it is characterized by: the insulated wire cores are by copper conductor, refractory insulating layer, insulating layer
It constitutes；The metal screen layer is metal wire knitted or the wrapped composition of metal tape；The oxygen barrier layer is to squeeze out on extruding machine
The low-smoke halide-free fireproof composite polyolefine material of high fire-retardance；The metal fireproof separation layer is anti-using the metal of the wrapped composition of metal tape
Fire bed；The oversheath is that low-smoke and halogen-free flame retardant polyolefin jacket material is squeezed out on extruding machine.
The copper conductor is constituted by copper wire is twisted, and outermost layer is left-hand, and adjacent layer is opposite.
The refractory insulating layer is using the wrapped composition of mica tape multiple-layer overlapped.
The insulating layer is to extrude crosslinked polyethylene or other polyolefine materials.
The oxygen barrier layer is to extrude low-smoke and halogen-free flame retardant polyolefin jacket material, and oxygen index (OI) >=40.
The outer jacket is to extrude low-smoke and halogen-free flame retardant polyolefin jacket material, and cable is when by flame impingement, meeting
It expands rapidly and is sintered to form one layer of hard shell, it is interior when making cable fire so as to protection cable built-in electrical insulation and combustible
Portion's temperature will not be too high, and then the effect of reach anti-flaming thermal-insulation fire resisting.
The metal fireproof separation layer is using the wrapped composition of metal tape, and metal tape is wrapped can be overlapped for single-layer metal band
Wrapped or double-level-metal band gap is wrapped, guarantees that cable has the metal fireproof layer of one layer of sealing, has good anti-fire screen
From ability.
Compared with prior art, brought beneficial technical effect is shown the utility model:
1, when by flame impingement, jacket material, oxygen barrier layer material can expand rapidly and be sintered to form one layer cable
Hard shell, so as to protection cable built-in electrical insulation and combustible, internal temperature will not be too high when making cable fire, and then reaches
The effect of anti-flaming thermal-insulation fire resisting.
2, using metal fireproof separation layer, flame can be effectively isolated, make to burn when cable fire inside cable core can
Combustion things play good fire prevention isolating power.Because combustible combustion can discharge a large amount of heat, it is right in national standard to will affect
The examination of heat release rate peak value and hot total volume.Therefore fire-retardant fireproof can effectively be reached using metal fireproof separation layer
Effect.
3, using metal fireproof separation layer, fireproofing of cable isolating power can not only be improved, while machinery can also be also functioned to
The effect of protection.
4, using metal fireproof separation layer, do not influence the electrical property of cable, mechanical performance, ageing properties, bending property and
Mounting and installation performance, also without prejudice to the requirement in product standard to cable material compatibility.
Detailed description of the invention
Fig. 1 is the cross section structure schematic diagram of the utility model.
Attached drawing 1 marks: 1, copper conductor, 2, refractory insulating layer, 3, insulation, 4, cable core filling, 5, belting layer, 6, metallic shield
Layer, 7, oxygen barrier layer, 8, metal fireproof separation layer, 9, oversheath
Specific embodiment
Embodiment 1
As one preferred embodiment of the utility model, referring to Figure of description 1:
Shown in a kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging, mainly by copper conductor, hot-face insulation
The wrapped fire lagging of layer, insulating layer, metal screen layer, oxygen barrier layer, metal tape, oversheath composition.The copper conductor is by copper
Silk is twisted to be constituted；The refractory insulating layer is to be overlapped wrapped constitute by mica tape；The insulating layer is to extrude crosslinked polyethylene structure
At；The metal screen layer is metal wire knitted composition；The oxygen barrier layer is the low smoke and zero halogen for extruding oxygen index (OI) and being 40 or more
Flame-resistant polyolefin oxygen barrier material is extruded on metal screen layer；The wrapped fire lagging of metal tape is using galvanized steel strip
Double-layer gap is around oxygen barrier layer surface；The external sheath layer is to extrude low-smoke and halogen-free flame retardant polyolefin jacket material composition.
Embodiment 2
As one preferred embodiment of the utility model, referring to Figure of description 1:
Shown in a kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging, mainly by copper conductor, hot-face insulation
The wrapped fire lagging of layer, insulating layer, metal screen layer, oxygen barrier layer, metal tape, oversheath composition.The copper conductor is by reality
Core copper wire is constituted；The refractory insulating layer is to be overlapped wrapped constitute by mica tape；The insulating layer is to extrude crosslinked polyethylene structure
At；The metal screen layer is the wrapped composition of metal tape；The oxygen barrier layer is the low smoke and zero halogen for extruding oxygen index (OI) and being 40 or more
Flame-resistant polyolefin oxygen barrier material is extruded on metal screen layer；The wrapped fire lagging of metal tape is using galvanized steel strip
Double-layer gap is around oxygen barrier layer surface；The external sheath layer is to extrude low-smoke and halogen-free flame retardant polyolefin jacket material composition.
Embodiment 3
As one preferred embodiment of the utility model, referring to Figure of description 1:
Shown in a kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging, mainly by copper conductor, hot-face insulation
The wrapped fire lagging of layer, insulating layer, metal screen layer, oxygen barrier layer, metal tape, oversheath composition.The copper conductor is by reality
Core copper wire is constituted；The refractory insulating layer is to be overlapped wrapped constitute by mica tape；The insulating layer is to extrude cross-linked polyolefin structure
At；The metal screen layer is metal wire knitted composition；The oxygen barrier layer is the low-smoke halogen-free flame-resistant polyolefin oxygen barrier extruded
Material；The wrapped fire lagging of metal tape is using the wrapped composition of galvanized steel strip Double-layer gap；The external sheath layer is crowded
Packet low-smoke and halogen-free flame retardant polyolefin jacket material is constituted.
Claims (8)
1. a kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging, including it is insulated wire cores, metal screen layer (6), oxygen barrier
Layer (7), metal fireproof separation layer (8), outer jacket (9), it is characterised in that: the insulated wire cores are by copper conductor (1), hot-face insulation
Layer (2), insulating layer (3) are constituted；The metal screen layer (6) is constituted by metal wire knitted or metal tape are wrapped；It is described oxygen barrier
Layer (7) is the low-smoke halide-free fireproof composite polyolefine material that high fire-retardance is squeezed out on extruding machine；The metal fireproof separation layer (8) is to adopt
With the metal fireproof layer of the wrapped composition of metal tape；The outer jacket (9) is that low smoke halogen-free flame-retardant polyolefin is squeezed out on extruding machine
Sheath material.
2. a kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging as described in claim 1, it is characterised in that: institute
Stating copper conductor (1) is constituted by copper wire is twisted, and outermost layer is left-hand, and adjacent layer is opposite.
3. a kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging as described in claim 1, it is characterised in that: institute
Stating refractory insulating layer (2) is using the wrapped composition of mica tape multiple-layer overlapped.
4. a kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging as described in claim 1, it is characterised in that: institute
Stating insulating layer (3) is to extrude crosslinked polyethylene or other polyolefine materials.
5. a kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging as described in claim 1, it is characterised in that: institute
Stating metal screen layer (6) is metal wire knitted or the wrapped composition of metal tape.
6. a kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging as described in claim 1, it is characterised in that: institute
Stating oxygen barrier layer (7) is to extrude low-smoke and halogen-free flame retardant polyolefin jacket material.
7. a kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging as described in claim 1, it is characterised in that: institute
State metal fireproof separation layer (8) be using the wrapped composition of metal tape, metal tape it is wrapped can it is wrapped for the overlapping of single-layer metal band or
Person's double-level-metal band gap is wrapped, guarantees that cable has the metal fireproof layer of one layer of sealing, has good fire prevention isolating power.
8. a kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging as described in claim 1, it is characterised in that: institute
Stating outer jacket (9) is to extrude low-smoke and halogen-free flame retardant polyolefin jacket material, and cable can expand rapidly when by flame impingement
And be sintered and to form one layer of hard shell, so as to protection cable built-in electrical insulation and combustible, when making cable fire, internal temperature is not
Can be too high, and then the effect of reach anti-flaming thermal-insulation fire resisting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820942528.4U CN208689973U (en) | 2018-06-19 | 2018-06-19 | A kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820942528.4U CN208689973U (en) | 2018-06-19 | 2018-06-19 | A kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208689973U true CN208689973U (en) | 2019-04-02 |
Family
ID=65878821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820942528.4U Active CN208689973U (en) | 2018-06-19 | 2018-06-19 | A kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208689973U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635119A (en) * | 2021-01-15 | 2021-04-09 | 焦作铁路电缆有限责任公司 | B1-grade flame-retardant ultra-low-dropping electrified railway 27.5kV cable |
-
2018
- 2018-06-19 CN CN201820942528.4U patent/CN208689973U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635119A (en) * | 2021-01-15 | 2021-04-09 | 焦作铁路电缆有限责任公司 | B1-grade flame-retardant ultra-low-dropping electrified railway 27.5kV cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202258471U (en) | Environment-friendly fire-proof medium-voltage cable | |
| CN207602250U (en) | A kind of metallic spacer flexible fire-proof cable | |
| CN108447610A (en) | A kind of fire-retardant fireproof cable and preparation method thereof | |
| CN105989914B (en) | A kind of environment-friendly type flexible fire-proof cable | |
| CN209045211U (en) | A kind of fire-retardant 1 grade of B1 cable interlocking metal tape fire lagging | |
| CN208689973U (en) | A kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging | |
| CN109461542A (en) | A kind of low-smoke zero-halogen low-toxicity public safety fireproof cable manufacturing method | |
| CN112164510A (en) | High-flame-retardant new energy automobile cable | |
| CN107945932A (en) | Aluminium core copper sheath ceramic insulation mineral oversheath flexible fire-proof cable | |
| CN205177474U (en) | Fire -resistant power cable of cross -linked insulation | |
| CN208335828U (en) | Fire-resisting cable is pressed in one kind | |
| CN205177445U (en) | Fireproof cable | |
| CN105931741A (en) | Heat-insulation mica insulation metal protection fireproof cable | |
| CN208861714U (en) | A kind of high fire-retardance low heat value rail traffic DC traction power cable | |
| CN107945964A (en) | Pressure crosslinking flexible fire-proof cable in environmentally friendly heat insulation type metal steel sheath | |
| CN211654344U (en) | Novel mineral insulated rigid fireproof cable | |
| CN211062505U (en) | Fireproof power cable | |
| CN211045061U (en) | Fireproof control cable | |
| CN210606749U (en) | Low-smoke environment-friendly halogen-free flame-retardant fire-resistant cable | |
| CN207966545U (en) | A kind of alloy-type flame-proof environmental protection electric wire | |
| CN202930100U (en) | Airport terminal medium voltage fireproof cable | |
| CN202549472U (en) | Fire-resistant power cable | |
| CN201765873U (en) | Fully flame-retardant and fire-proof armored silicane cross-linked power cable | |
| CN101950615A (en) | Flexible fireproof mineral insulated cable and manufacturing method thereof | |
| CN205177471U (en) | This ampere of type fireproof cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |