CN207337997U - A kind of resistance to spray can ceramic fire-resisting cable - Google Patents
A kind of resistance to spray can ceramic fire-resisting cable Download PDFInfo
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- CN207337997U CN207337997U CN201721477692.4U CN201721477692U CN207337997U CN 207337997 U CN207337997 U CN 207337997U CN 201721477692 U CN201721477692 U CN 201721477692U CN 207337997 U CN207337997 U CN 207337997U
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- layer
- resistance
- spray
- resisting cable
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Abstract
The utility model discloses a kind of resistance to spray can ceramic fire-resisting cable, it includes insulated core and is wrapped in the heat-reflective aluminium foil layer of insulated core lateral surface, Ceramic silicon rubber layer, oxygen barrier layer, glass belting layer, steel-tape armouring layer and oversheath successively from the inside to the outside, the oxygen barrier layer and oversheath are made of polyolefine material, and gap is filled with alkali-free glass fibre between heat-reflective aluminium foil layer and insulated core；Wherein, which includes from the inside to the outside parcel setting conductor wire core, conductor shield, crosslinked polyetylene insulated layer, insulation screen and metal screen layer successively.The resistance to spray that the utility model is rational in infrastructure, easily manufactured, cost of implementation is low can ceramic fire-resisting cable, allow cable overall construction intensity is high, plasticity is strong, has good fire resistance and resistance to spray performance.
Description
Technical field
Cable technology is the utility model is related to, can ceramic fire-resisting cable more particularly, to a kind of resistance to spray.
Background technology
Cut-off 2014, China's urbanization rate is about 55%, and the target of distance 70% still suffers from larger gap." 13
During five ", real estate industry will be one of important support in China's economic development structure.While all kinds of city public buildings,
The densely populated large-scale public place such as underground space public transit facility is more and more to the demand of fire prevention/fire-resisting cable.According to
Count the municipal engineering distribution cable during 7,500,000,000 or so, primary Calculation " 13 " of municipal engineering distribution cable market in 2014
Demand is 9,000,000,000~10,000,000,000 or so, and emphasis demand is novel environment friendly low-smoke zero-halogen fire-resistant cable.With GB50016-2014
《Code for fire protection design of buildings》The appearance of state compulsory standard, the fire-fighting emergent equipment in building must be equipped with dimension
Fire prevention/fire-resisting cable.This just brings unprecedented opportunities to the development of fire-resisting cable.
Current low-smoke zero-halogen fire-resistant cable manufacturing process is complicated, and cost is higher, and flexibility is poor, and fire resistance is not under high temperature
Good, fire resistance period is short, can ceramic material formed flame retardant coating high temperature under poor seismic behavior, the easy dusting of water drenching.
Utility model content
The defects of to overcome the prior art, the utility model proposes it is a kind of it is rational in infrastructure, easily manufactured, cost of implementation is low
Resistance to spray can ceramic fire-resisting cable, allow cable overall construction intensity is high, plasticity is strong, has good fire resistance and resistance to spray
Drench performance.
The utility model adopts the following technical solution realizes：A kind of resistance to spray can ceramic fire-resisting cable, it include insulation
Cable core and the heat-reflective aluminium foil layer, Ceramic silicon rubber layer, oxygen barrier for being wrapped in insulated core lateral surface successively from the inside to the outside
Layer, glass belting layer, steel-tape armouring layer and oversheath, and gap is filled with nothing between heat-reflective aluminium foil layer and insulated core
Alkali containing glass fibre；Wherein, which, which includes wrapping up successively from the inside to the outside, sets conductor wire core, conductor shield, crosslinking poly-
Ethene insulating layer, insulation screen and metal screen layer.
Wherein, the conductor shield and insulation screen are that semiconductive material is made.
Wherein, the insulated core is single or three.
Wherein, conductor wire core is copper conductor or aluminium conductor.
Wherein, Ceramic silicon rubber layer oxygen index (OI) requirement reach more than 38 and thickness be 2~4mm.
Wherein, the thickness of oxygen barrier layer is 3.8~6.5mm.
Wherein, the metal screen layer is attached most importance to the folded copper strips around insulation screen lateral surface.
Wherein, the oxygen barrier layer and oversheath are made of polyolefine material.
Compared with prior art, the utility model has the advantages that：
1. the utility model can ceramic polyolefin oxygen barrier and oversheath prevented fires using ceramic low-smoke non-halogen flame-retardant it is resistance to
Fiery polyolefin, fine and close uniform micro ceramics can be generated after ablation occurs in case of fire in the section of steel-tape armouring layer,
The speed that crusts is fast, and housing is hard, closely knit, can play extraordinary heat-insulated, thermal insulation, the fiery effect of gear；There are flame, nothing at 350-1600 DEG C
In the case of flame, housing does not melt, and does not drip, and does not fall off, and will not cause spot fire, and the armour body crooked breaking strength after ablation can
Up to 5MPa or so, resistance to spray.The material Halogen, nontoxic, tasteless, heavy metal free, do not prolong combustion, do not drip, flue gas toxity reaches ZA1
Level, smoke density light transmittance will not cause secondary injury up to more than 82% to human body.Have density small at the same time, price is low, can press
Produced according to the technique of halogen-free low-smoke polyolefin cable material, technique is simple, and production efficiency is high；Bending radius is less than copper and aluminium closes
Golden sheath, laying is easy, can continuous production endless, many advantages, such as seamless.
2. alkali-free glass fibre is filled in gap between insulated wire cores and heat-reflective aluminium foil layer, alkali-free glass fibre is
A kind of highly stable inorganic material, nontoxic, heat resisting temperature will not be produced up to more than 660 DEG C even more highs after heated
Harmful flue gas, has good interstitial channels between every alkali-free glass fibre, this passage can play very well after filling stranding
Cooling effect, heat caused by cable normal operation can pass through this gap various between alkali-free glass fibre
Passage radiates, and the heat that exterior conductive is come in when running into fire can also be gone out by these channel conductances.
3. the utility model is using heat-reflective aluminium foil as gear thermosphere, aluminium foil is good heat-insulating material, its thermal insulation
Performance can show on the heat-radiating properties on its surface that aluminium foil is especially small to the emissivity of infrared radiant energy, therefore have well
Heat-proof quality, can reflect back the radiant heat of 80%-95%, can play the role of heat reflection.
4. conductor wire core is regular concentric stranding copper conductor, stability is high, and pliability is good, and tensile capacity is strong, and ductility is good,
Plasticity is strong.Insulated core is single or more, can be fabricated to single or three-core cable etc..
5. steel-tape armouring layer is formed using double-deck galvanized steel strip gap is wrapped, after overall parcel cable, can play to resistance to
The mechanical protection of fiery insulating layer, and isolation flame impingement can be played, the effect of Quick uniform heat conduction.
6. the utility model cable integrally has good fire resistant flame retardant performance, 90 can be remained powered under combustion case
Minute, resistance to spray, and while burning meet the environmental requirement of low smoke and zero halogen, also high with overall construction intensity, tensile capacity is strong
Feature.
Brief description of the drawings
The structure sectional view of Fig. 1 the utility model.
Embodiment
As shown in Figure 1, the utility model disclose a kind of resistance to spray can ceramic fire-resisting cable, including insulated core and from
It is interior to be wrapped in successively outside the heat-reflective aluminium foil layer 7 of insulated core lateral surface, Ceramic silicon rubber layer 8, can ceramic polyene
Oxygen barrier layer 9, glass belting layer 10, steel-tape armouring layer 11 and the oversheath 12 of hydrocarbon material, heat-reflective aluminium foil layer 7 and insulated core
Between gap be filled with alkali-free glass fibre 6；Wherein, insulated core include from the inside to the outside successively parcel set conductor wire core 1,
Conductor shield 2, crosslinked polyetylene insulated layer 3, insulation screen 4 and metal screen layer 5.
There is crosslinked polyetylene insulated layer 3 good insulating properties and heat resistance to insulate.Heat-reflective aluminium foil layer 7 has good
Heat-insulating property, on the heat-radiating properties for showing its surface, aluminium foil is especially small to the emissivity of infrared radiant energy, therefore with good
Good heat-proof quality, can reflect back the radiant heat of 80%-95%, can play the role of heat reflection, can be effectively isolated and
Slow down the temperature for the crosslinked polyetylene insulated layer 3 that insulated core is passed to during burning, ensure crosslinked polyetylene insulated layer 3 certain
Temperature is less than 180 degrees Celsius in time.
The thickness of Ceramic silicon rubber layer 8 is 2~4mm, and oxygen index (OI) requirement reaches more than 38.8, Ceramic silicon rubber layer
Body electrical insulation properties are excellent and have good flexibility and elasticity, can prevent insulated core from making moist.Also, ceramic SiClx
The housing of ceramic-like is changed into after rubber layer 8 is ablated so as to form one layer of hard protective layer, which is loose porous
Crust thing, can effectively prevent heat transfer, plays the role of the extraneous flame of isolation, has good protective effect to insulated core.
In addition, Ceramic silicon rubber layer 8 is wrapped with oxygen barrier layer 9, which is wrapped with steel-tape armouring layer 11, the steel-tape armouring
Layer 11 can substantially stop partition flame, effectively prevent direct flame contact insulated core, be additionally favorable for the overall structure of enhancing cable
Intensity, which is wrapped with low smoke and zero halogen can oversheath 12 made of ceramic polyolefin.
Furthermore the thickness of oxygen barrier layer 9 is 3.8~6.5mm.Oxygen barrier layer 9 and oversheath 12 use ceramic low smoke and zero halogen
Flame-retardant polyolefine material is made, and can effectively improve cable wear resistance, allows cable integrally to have good fire resistance and soft
Toughness, and cable overall construction intensity is high, tensile capacity is strong.
The copper strips of the use of metal screen layer 5 is overlapping to be formed around 4 lateral surface of insulation screen, the metallic shield
Layer 5 plays shielding electric jamming and balanced electric field action, it is ensured that insulation shielding semi-conductive screen is ground potential neutral point, may be used also
Ensure that earth-fault current passes through.
The conductor shield 2 and insulation screen 4 are that semiconductive material is made.
The conductor wire core 1 is the circular twisted copper conductor or aluminium conductor pressed.The conductor shield 2, the poly- second of crosslinking
Alkene insulating layer 3 and 4 three of insulation screen using extrusion molding of three-layer co-extruding machine head and are both needed to carry out at high temperature under high pressure
Crosslinking, and the degree of cross linking is more than or equal to 80%.
The insulated core is single or three.
The alkali-free glass fibre 6 of filling is a kind of highly stable inorganic material, and nontoxic, heat resisting temperature is up to 660
Even more high more than DEG C, harmful flue gas will not be produced after heated.Ensure have between every alkali-free glass fibre after filling stranding
Good interstitial channels, this passage can play good cooling effect, and heat can pass through caused by cable normal operation
Various this interstitial channels radiate between alkali-free glass fiber yarn, and the heat that exterior conductive is come in when running into fire also may be used
To be gone out by these channel conductances.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of resistance to spray can ceramic fire-resisting cable, it is characterised in that wraps up successively including insulated core and from the inside to the outside
In the heat-reflective aluminium foil layer (7) of insulated core lateral surface, Ceramic silicon rubber layer (8), oxygen barrier layer (9), glass belting layer
(10), steel-tape armouring layer (11) and oversheath (12), and heat-reflective aluminium foil layer (7) gap between insulated core is filled with
Alkali-free glass fibre (6)；Wherein, which includes from the inside to the outside parcel setting conductor wire core (1), conductor shield successively
(2), crosslinked polyetylene insulated layer (3), insulation screen (4) and metal screen layer (5).
2. resistance to spray can ceramic fire-resisting cable according to claim 1, it is characterised in that the conductor shield (2) and
Insulation screen (4) is that semiconductive material is made.
3. resistance to spray can ceramic fire-resisting cable according to claim 1, it is characterised in that the insulated core to be single or
Three.
4. resistance to spray can ceramic fire-resisting cable according to claim 1, it is characterised in that conductor wire core (1) is copper conductor
Or aluminium conductor.
5. resistance to spray can ceramic fire-resisting cable according to claim 1, it is characterised in that Ceramic silicon rubber layer (8)
Oxygen index (OI) requirement reach more than 38 and thickness be 2~4mm.
6. resistance to spray can ceramic fire-resisting cable according to claim 1, it is characterised in that the thickness of oxygen barrier layer (9) is 3.8
~6.5mm.
7. resistance to spray can ceramic fire-resisting cable according to claim 1, it is characterised in that the metal screen layer (5) is
The overlapping copper strips around insulation screen (4) lateral surface.
8. resistance to spray can ceramic fire-resisting cable according to claim 1, it is characterised in that the oxygen barrier layer (9) and oversheath
(12) polyolefine material system is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721477692.4U CN207337997U (en) | 2017-11-08 | 2017-11-08 | A kind of resistance to spray can ceramic fire-resisting cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721477692.4U CN207337997U (en) | 2017-11-08 | 2017-11-08 | A kind of resistance to spray can ceramic fire-resisting cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207337997U true CN207337997U (en) | 2018-05-08 |
Family
ID=62427503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721477692.4U Expired - Fee Related CN207337997U (en) | 2017-11-08 | 2017-11-08 | A kind of resistance to spray can ceramic fire-resisting cable |
Country Status (1)
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|---|---|
| CN (1) | CN207337997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114038616A (en) * | 2021-11-26 | 2022-02-11 | 广东穗星电缆实业有限公司 | High-temperature-resistant flame-retardant cable |
-
2017
- 2017-11-08 CN CN201721477692.4U patent/CN207337997U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114038616A (en) * | 2021-11-26 | 2022-02-11 | 广东穗星电缆实业有限公司 | High-temperature-resistant flame-retardant cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 Termination date: 20181108 |