CN206312616U - Fireproof power cable is pressed in a kind of high fire-retardance - Google Patents
Fireproof power cable is pressed in a kind of high fire-retardance Download PDFInfo
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- CN206312616U CN206312616U CN201720019292.2U CN201720019292U CN206312616U CN 206312616 U CN206312616 U CN 206312616U CN 201720019292 U CN201720019292 U CN 201720019292U CN 206312616 U CN206312616 U CN 206312616U
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Abstract
The utility model is related to press fireproof power cable in a kind of high fire-retardance,The cable includes the cable core for setting gradually from inside to outside,Packed layer,Interior band,Interior flame retardant coating,High fire-retardance oxygen barrier layer,Outer flame retardant coating,Outer band,Oversheath,Interior band is wrapped outside packed layer,Interior flame retardant coating is wrapped outside interior band,High fire-retardance oxygen barrier layer is extruded in outside interior flame retardant coating,Outer flame retardant coating is wrapped outside high fire-retardance oxygen barrier layer,Outer band is wrapped outside outer flame retardant coating,Oversheath is extruded in outside outer band,Cable core is formed by multiple insulated wire cores are stranded,Described insulated wire cores include the conductor for setting gradually from inside to outside,Conductor shield,Insulating barrier,Insulation screen and metal screen layer,Conductor shield is extruded in outside conductor,Insulating barrier is extruded in outside conductor shield,Insulation screen is extruded in outside insulating barrier,Metal screen layer overlaps wrapped outside insulation screen.Structure of the present utility model substantially increases cable fire quality.
Description
Technical field
The utility model is related to a kind of power cable, and fireproof power cable is pressed in more particularly to a kind of high fire-retardance.
Background technology
There is concrete on fire in common cable, it is impossible to ensure circuit normal power supply, cause elevator, emergency lighting, automatic alarm
With disaster relief system etc. cannot normal work, rescue evacuates extremely difficult, and with the raising that people's fire-fighting is realized, that has regained consciousness recognizes
Know using the importance that power and distribution supply cable holding power supply can be ensured in fire environment.In particular how fire situation
Under, the unimpeded of electric power and communication line is ensured within a certain period of time, the quality time is won to greatest extent, it is beneficial to rescuing for fire
Help and fleeing from and evacuating with personnel, the loss for reducing the injures and deaths and lives and properties of personnel is the problem that people constantly explore.
In addition, dense black smoke can be discharged in fire for common cable and hydrogen chloride (HCI) gas causes trapped personnel
Evacuation path is can't see, toxic gas is sucked and is suffocated, form secondary disaster.And can not be Combustion System in limited scope
It is interior, spread, increase the injury to communal facility, the corrosion of building and to people and result in greater loss.
In sum, for the power transmission electricity consumption of the important events such as skyscraper, large supermarket, hospital, airport, oil depot
Power cable should have the performances such as fire-retardant, the high and low cigarette Halogen of refractory temperature higher.But comparative maturity is fire-retardant resistance in the market
Thermoelectricity cable is 0.6/1kV and following product, and the fire resistant quality of middle pressure fire-resisting cable is very different.Flame proof electrical is pressed in high fire-retardance
Power cable suitable for power distribution network or commercial plant have low smoke, zero halogen, high fire-retardance, the rated voltage 6 of A class fire resistant requirements~
The supply line of 35kV fixed installations.It is widely used in skyscraper, large supermarket, hospital, airport, oil depot and large-scale public entertainment
The power transmission of the important events such as place, public transit facility.
Utility model content
The purpose of this utility model is, not enough for more than, there is provided one kind has high fire-retardance, low smoke and zero halogen, fire resisting temperature
Fireproof power cable is pressed in the high fire-retardance of the features such as degree height, cracking resistance, long service life.
The utility model solves the technical scheme that its technical problem used：
Fireproof power cable is pressed in a kind of high fire-retardance, it is cable core that the cable includes setting gradually from inside to outside, packed layer, interior
Band, interior flame retardant coating, high fire-retardance oxygen barrier layer, outer flame retardant coating, outer band, oversheath, interior band are wrapped outside packed layer, interior fire resisting
Layer is wrapped outside interior band, and high fire-retardance oxygen barrier layer is extruded in outside interior flame retardant coating, and outer flame retardant coating is wrapped outside high fire-retardance oxygen barrier layer, outward
Band is wrapped outside outer flame retardant coating, and oversheath is extruded in outside outer band, and cable core is formed by multiple insulated wire cores are stranded, and described is exhausted
Edge core includes the conductor, conductor shield, insulating barrier, insulation screen and the metal screen layer that set gradually from inside to outside, leads
Body screen layer is extruded in outside conductor, and insulating barrier is extruded in outside conductor shield, and insulation screen is extruded in outside insulating barrier, metal screen
Cover layer overlap wrapped outside insulation screen.
Preferably, described oversheath is from the oversheath that material is the low cigarette polyolefin of new high-flame-retardanthalogen-free halogen-free.
Preferably, being provided with metal gear fire bed between described outer flame retardant coating and outer band, metal gear fire bed is between bilayer
Every armouring outside outer flame retardant coating, outer band is wrapped outside metal gear fire bed.
Preferably, described high fire-retardance oxygen barrier layer is extruded in outside interior flame retardant coating for halogen-free low-smoke high-flame polyolefine material
Surface.
Preferably, described interior flame retardant coating and outer flame retardant coating are the composite band that material is Ceramic silicon rubber.
Preferably, described packed layer is filler from alkali-free glass fiber yarn, described band is from high fire-retardance
The glass fibre belt of property.
Preferably, the described conductor shield for setting gradually from inside to outside, insulating barrier, insulation screen use three layers
The mode of co-extrusion is extruded in conductor outside surfaces.
The beneficial effects of the utility model are：
The oversheath of power cable of the present utility model, high fire-retardance oxygen barrier layer, interior band, outer band and packed layer are height
Flame-retardant low-smoke halogen-free material, effectively increases the performance of cable LSOH anti-flaming, and fire resistance is fire-retardant from A grades（Non-metallic body
Product 7L/m, burn 40min, and carbonization height is no more than 2.5m）Bring up to super A grades it is fire-retardant（Nonmetallic volume 14L/m, burning
40min, carbonization height only has 0.95m）, light transmittance during cable fire brings up to 75% from 60%, and electrical conductivity drops from 10 μ s/mm
To 1 μ s/mm.
The utility model is made by the collaboration of metal screen layer, outer flame retardant coating, high fire-retardance oxygen barrier layer, interior fire-resistant layer structure
With substantially increasing cable fire quality（950 DEG C are not less than flame temperature is met, it is lasting for fiery time 90min, experimental period
Between, sample should bear the load voltage value that product specifies, while insulation does not puncture, after off-test in 1 hour, keep trying
In the case of testing reset condition, the test voltage for applying 3.5U0 to sample continues 15min cables and does not puncture still, and circuit has kept
It is whole, reach A class fire resistance requirements）.By using the modified low cigarette polyolefin jacket material of new high-flame-retardanthalogen-free halogen-free and gold
The structure of the outer wrapped glass fibre belt of category armor, efficiently solves sheath problem easy to crack, improves the service life of cable.Cable
Filler and band material use the glass fiber material of good heat dispersion performance, and metal gear fire bed is preferable using heat conductivility
Steel band, efficiently solves the current-carrying capacity that conductor when cable normally runs produces heat to be difficult to distribute and cause and declines problem.
Brief description of the drawings
Fig. 1 is main structure diagram of the present utility model.
In figure：1st, conductor, 2, conductor shield, 3, insulating barrier, 4, insulation screen, 5, metal screen layer, 6, packed layer,
7th, interior band, 8, interior flame retardant coating, 9, high fire-retardance oxygen barrier layer, 10, outer flame retardant coating, 11, metal gear fire bed, 12, outer band, 13, outer
Sheath.
Specific embodiment
Below by specific embodiment, and with reference to accompanying drawing, the technical solution of the utility model is made further specifically
It is bright.It should be appreciated that implementation of the present utility model is not limited to the following examples, any form done to the utility model
On accommodation and/or change fall within the utility model protection domain.
Embodiment：
Fireproof power cable is pressed in a kind of high fire-retardance as shown in Figure 1, including cable core, the filling for setting gradually from inside to outside
Layer 6, interior band 7, interior flame retardant coating 8, high fire-retardance oxygen barrier layer 9, outer flame retardant coating 10, outer band 12, oversheath 13, interior band it is wrapped
Outside packed layer, interior flame retardant coating is wrapped outside interior band, and high fire-retardance oxygen barrier layer is extruded in outside interior flame retardant coating, and outer flame retardant coating is wrapped in height
Outside fire-retardant oxygen barrier layer, oversheath is extruded in outside outer band, and cable core is formed by three insulated wire cores are stranded, and insulated wire cores are included by interior
Conductor 1, conductor shield 2, insulating barrier 3, insulation screen 4 and the metal screen layer 5 for outwards setting gradually, conductor shield,
Insulating barrier, insulation screen are extruded in conductor outside surfaces by the way of three-layer co-extruded, and metal screen layer overlaps wrapped in insulation
Outside screen layer.
Metal gear fire bed 11 is additionally provided between outer flame retardant coating and outer band, metal gear fire bed is resistance to outside in double-layer partition armouring
Outside fire bed, outer band is wrapped outside metal gear fire bed.
From the copper conductor that is twisted into of the layered impacted process of copper cash of annealing, packed layer is conductor from alkali-free glass fiber yarn
Filler, high fire-retardance oxygen barrier layer is extruded in interior flame retardant coating outer surface for halogen-free low-smoke high-flame polyolefine material, interior flame retardant coating and
Outer flame retardant coating is the composite band that material is Ceramic silicon rubber, and interior band and outer band are from the glass with high flame retardant
Band, oversheath is from the oversheath that material is the low cigarette polyolefin of new high-flame-retardanthalogen-free halogen-free.
Embodiment described above is a kind of preferably scheme of the present utility model, not makees any to the utility model
Formal limitation, also has other variants and remodeling on the premise of without departing from the technical scheme described in claim.
Claims (7)
1. fireproof power cable is pressed in a kind of high fire-retardance, it is characterised in that：The cable include set gradually from inside to outside cable core,
Packed layer, interior band, interior flame retardant coating, high fire-retardance oxygen barrier layer, outer flame retardant coating, outer band, oversheath, interior band are wrapped in packed layer
Outward, interior flame retardant coating is wrapped outside interior band, and high fire-retardance oxygen barrier layer is extruded in outside interior flame retardant coating, outer flame retardant coating it is wrapped high fire-retardance every
Outside oxygen layer, outer band is wrapped outside outer flame retardant coating, and oversheath is extruded in outside outer band, cable core by multiple insulated wire cores it is stranded and
Into described insulated wire cores include the conductor, conductor shield, insulating barrier, insulation screen and the gold that set gradually from inside to outside
Category screen layer, conductor shield is extruded in outside conductor, and insulating barrier is extruded in outside conductor shield, and insulation screen is extruded in water resistant
Outside tree insulating barrier, metal screen layer overlaps wrapped outside insulation screen.
2. fireproof power cable is pressed in a kind of high fire-retardance according to claim 1, it is characterised in that：Described oversheath choosing
With the oversheath that material is the low cigarette polyolefin of new high-flame-retardanthalogen-free halogen-free.
3. fireproof power cable is pressed in a kind of high fire-retardance according to claim 1, it is characterised in that：Described outer flame retardant coating
Be provided with and outer band between metal gear fire bed, metal gear fire bed in double-layer partition armouring outside outer flame retardant coating, outer band it is wrapped
Outside metal gear fire bed.
4. fireproof power cable is pressed in a kind of high fire-retardance according to claim 1, it is characterised in that：Described high fire-retardance every
Oxygen layer is extruded in interior flame retardant coating outer surface for halogen-free low-smoke high-flame polyolefine material.
5. fireproof power cable is pressed in a kind of high fire-retardance according to claim 1, it is characterised in that：Described interior flame retardant coating
The composite band that material is Ceramic silicon rubber is with outer flame retardant coating.
6. fireproof power cable is pressed in a kind of high fire-retardance according to claim 1, it is characterised in that：Described filling layer choosing
It is filler with alkali-free glass fiber yarn, described band is from the glass fibre belt with high flame retardant.
7. fireproof power cable is pressed in a kind of high fire-retardance according to claim 1, it is characterised in that：It is described from inside to outside
The conductor shield that sets gradually, water resistant tree insulating barrier, insulation screen are extruded in conductor appearance by the way of three-layer co-extruded
Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720019292.2U CN206312616U (en) | 2017-01-09 | 2017-01-09 | Fireproof power cable is pressed in a kind of high fire-retardance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720019292.2U CN206312616U (en) | 2017-01-09 | 2017-01-09 | Fireproof power cable is pressed in a kind of high fire-retardance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206312616U true CN206312616U (en) | 2017-07-07 |
Family
ID=59248578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720019292.2U Active CN206312616U (en) | 2017-01-09 | 2017-01-09 | Fireproof power cable is pressed in a kind of high fire-retardance |
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| CN (1) | CN206312616U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806856A (en) * | 2018-07-21 | 2018-11-13 | 江苏东强股份有限公司 | Efficient fire resisting heat dissipation cable |
| CN112216433A (en) * | 2020-09-27 | 2021-01-12 | 安徽龙庵电缆集团有限公司 | High-flame-retardance medium-voltage fire-resistant cable and preparation method thereof |
-
2017
- 2017-01-09 CN CN201720019292.2U patent/CN206312616U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806856A (en) * | 2018-07-21 | 2018-11-13 | 江苏东强股份有限公司 | Efficient fire resisting heat dissipation cable |
| CN108806856B (en) * | 2018-07-21 | 2023-11-17 | 江苏东强股份有限公司 | High-efficiency fire-resistant heat-dissipation cable |
| CN112216433A (en) * | 2020-09-27 | 2021-01-12 | 安徽龙庵电缆集团有限公司 | High-flame-retardance medium-voltage fire-resistant cable and preparation method thereof |
| CN112216433B (en) * | 2020-09-27 | 2022-06-14 | 安徽龙庵电缆集团有限公司 | High-flame-retardance medium-voltage fire-resistant cable and preparation method thereof |
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