CN207489546U - A kind of mineral insulation fire resistant cable - Google Patents
A kind of mineral insulation fire resistant cable Download PDFInfo
- Publication number
- CN207489546U CN207489546U CN201721524912.4U CN201721524912U CN207489546U CN 207489546 U CN207489546 U CN 207489546U CN 201721524912 U CN201721524912 U CN 201721524912U CN 207489546 U CN207489546 U CN 207489546U
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- Prior art keywords
- mineral insulation
- outside
- mineral
- fire resistant
- fire
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Abstract
The utility model discloses a kind of mineral insulation fire resistant cables, and including cable core, the cable core is twisted by more mineral insulation cores and more reinforced plastics sticks；Fabric hose is extruded outside cable core, it is extruded outside fabric hose equipped with aluminium alloy inner sheath, the wrapped inhibiting tape outside aluminium alloy inner sheath, the second mineral insulation layer is extruded outside inhibiting tape, inorganic thermal insulation fireprotection layer is extruded outside the second mineral insulation layer, the wrapped glass fiber tape outside inorganic thermal insulation fireprotection layer, extrudes fire resistant sheath outside glass fiber tape.The utility model has the performances such as high temperature resistant, corrosion-resistant, oil resistant, heat-resisting, fire-retardant, heat-insulated, heat preservation, anti-electricity, softness.
Description
Technical field
The utility model is related to electric wire fields, and in particular to a kind of mineral insulation fire resistant cable.
Background technology
Fire refers to the disaster caused by out of control burning over time and space.In various disasters, fire is
Most frequently, one of major casualty of public security and social development is most generally threatened.
With the continuous development of society, while the wealth of society is increasing, the danger that fire occurs is caused also to exist
Increase, the harmfulness of fire is also increasing.According to statistics, China's fire seventies annual loss is less than 2.5 hundred million yuan, the eighties
Fire annual is lost less than 3.2 hundred million yuan.Since the nineties, particularly 1993 year, direct property loss caused by fire
Rise to average annual more than ten00000000 yuan.It makes an inventory according to Chinese fire protection, national whole year in 2014 is informed of a case fire 39.5 ten thousand, dead 1817 people,
Injured 1493 people, direct property loss is up to 43.9 hundred million yuan.From the point of view of statistical data, electrical fire accounts for 36.9% in fire, causes
Economic loss account for 58.6%.Although the main reason for anoxic, high temperature in fire, flue dust, poisonous gas are the harm person,
According to statistical analysis the reason of causing casualties in fire, smoked due to anthracemia death by suffocation or by other poison gas
The dead typically constitutes from the 40%~50% of the total death toll of fire.
In order to save more life, property and information from the merciless scene of a fire, it during being applied to of fireproof cable is attached most importance to
Weight, and fireproof cable currently on the market can be divided into two kinds of rigidity and flexibility by architectural characteristic.Due to rigid mineral insulation electricity
Cable rigidity mineral insulated cable（Mineral Insulated Cable）Abbreviation MI cables are in terms of reliability, production and laying
The defects of, it gradually quits listing in European and American developed countries, the mainstream cable that flexible mineral insulation fireproof cable becomes fire protection field produces
Product.General cable cover(ing) is using copper sheathing, and the process is more complicated, and efficiency is low, and cost is higher, sheath pass through frequently with heating temperature compared with
Low material can not form isolation, non-refractory so that isolation material is heated by broken meeting, frequently results in phenomena such as cable is short-circuit.
Utility model content
In order to overcome the deficiencies in the prior art, providing one kind has fire endurance high, and oil resistant is water-fast, corrosion-resistant,
Anti- electricity, soft mineral matter insulation high-temperature-resistant fireproof cable.
To achieve the above object, the utility model provides a kind of mineral insulation fire resistant cable, including cable core, institute
The cable core stated is twisted by more mineral insulation cores and more reinforced plastics sticks；Fabric hose is extruded outside cable core,
It is extruded outside fabric hose equipped with aluminium alloy inner sheath, the wrapped inhibiting tape outside aluminium alloy inner sheath, is extruded outside inhibiting tape
Two mineral insulation layers extrude inorganic thermal insulation fireprotection layer outside the second mineral insulation layer, wrapped outside inorganic thermal insulation fireprotection layer
Glass fiber tape extrudes fire resistant sheath outside glass fiber tape.
Preferably, the mineral insulation core is by aluminium alloy conductor, the first mineral being extruded in outside aluminium alloy conductor
The nylon resin pipe of insulating layer, overlapping outside the first mineral insulation is formed.
Preferably, second mineral insulation is made of Environmental-protective fire-proof nanometer mineral insulation material.
Preferably, first mineral insulation is made of Environmental-protective fire-proof nanometer mineral insulation material.
Preferably, the thickness ratio of first mineral insulation and the second mineral insulation is 1-1.5, and the first mineral are exhausted
The thickness of edge layer is 0.4mm-0.8mm.
Compared with prior art, the beneficial effects of the utility model are：
1st, the utility model is equipped with reinforced plastics stick in cable core, instead of steel core before, not only increases cable
Load, not easily broken core, is not easily broken, and also mitigates the weight of cable；
2nd, the utility model is simple in structure, by inner sheath using aluminum alloy sheath, not only simplifies technique and improves effect
Rate, and product cost is made to decline to a great extent, and cable is unlikely to deform so that the high and low density of cable strength, heat-resisting quantity
Good, good heat-insulation effect.
3rd, equipped with double-deck mineral insulation, in addition inorganic thermal insulation fireprotection layer so that cable has fire-proof insulation from inside to outside
Property, obtain multiple flameproof protection；And formed using Environmental-protective fire-proof nanometer mineral insulation material, it can excess load under rated voltage
2.5 times and as usual play insulating effect；Long-term service temperature range is：It -40 degrees Celsius to 1200 degrees Celsius, insulate as usual；
It is not short-circuit in 1.5 hours under the ablation of 800-1200 degrees Celsius of open fires, do not cause electrical fire, it more will not be combustion-supporting；In open fire ablation
In the process, not only fire retardant nonflame, but also no longer release asphyxia toxic gas, has low cigarette, nontoxic, Halogen, fire-retardant characteristic；
When bearing mechanical external force, electromagnetism interference；At low cost, good performance indexes；It is suitable for the insulating layer of various electric wires.
4th, double-deck mineral insulation is designed using thickness proportion so that the insulating properties inside and outside cable coordinates more preferable, reaches
Optimal rank.
5th, fabric hose is extruded outside cable core, presss from both sides cloth（Line）Conveying rubber pipe is by inner glue layer, multilayer folder cloth（Line）Winding layer
It is formed with outer glue-line, there are the performances such as high temperature resistant, corrosion-resistant, oil resistant, heat-resisting.
6th, fire resistant sheath is woven into after pipe by alkali-free glass fibre yarn and is coated with organic high temperature-resistant silica gel through high temperature
It manages, there are the performances such as fire-retardant, heat-insulated, heat preservation, anti-electricity, softness, its can be maintained flexible in the case of subzero 54 degrees Celsius
Property, in 260 degrees Celsius of sustainable work, reliably protecting is provided at 550 DEG C, anti-heat wave is resistant to≤1100 DEG C of height in short-term
The impact of warm molten steel.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate, it should be understood that these embodiments are only used for
Illustrate the utility model rather than limitation the scope of the utility model, after the utility model has been read, art technology
Personnel fall within the application range as defined in the appended claims to the modification of the various equivalent forms of the utility model.
As shown in Figure 1, the utility model provides a kind of mineral insulation fire resistant cable, it is described including cable core
Cable core is twisted by more mineral insulation cores and more reinforced plastics sticks 4；The mineral insulation core is by aluminium
The Buddhist nun of alloy conductor 1, the first mineral insulation 2 being extruded in outside aluminium alloy conductor, overlapping outside the first mineral insulation
Imperial pitch tube 3 is formed.
Then, fabric hose 5 is extruded outside cable core, by inner glue layer, multilayer folder cloth（Line）Winding layer and outer glue-line composition, tool
There are the performances such as high temperature resistant, corrosion-resistant, oil resistant, heat-resisting, extruded outside fabric hose equipped with aluminium alloy inner sheath 6, in aluminium alloy
Wrapped inhibiting tape 7 outside sheath, extrudes the second mineral insulation layer 8 outside inhibiting tape, and nothing is extruded outside the second mineral insulation layer
Machine heat-insulating, fire-preventing layer 9, wrapped glass fiber tape 10, extrudes fire resistant outside glass fiber tape outside inorganic thermal insulation fireprotection layer
Sheath 11, which, which is woven by alkali-free glass fibre yarn after pipe, is coated with organic high temperature-resistant silica gel and is formed through high-temperature process, has
The performances such as fire-retardant, heat-insulated, heat preservation, anti-electricity, softness, can maintain its flexibility in the case of subzero 54 degrees Celsius, Celsius 260
Sustainable work in the case of degree provides reliably protecting at 550 DEG C, and anti-heat wave is resistant to the impact of≤1100 DEG C of high-temperature molten steels in short-term.
First mineral insulation is made of Environmental-protective fire-proof nanometer mineral insulation material, and the second mineral insulation is nanometer
Environmental-protection fireproof mineral insulation material is made so that cable has fire-proof insulation from inside to outside, has obtained duplicate protection；And it uses and receives
Rice environmental-protection fireproof mineral insulation material is formed, and 2.5 times of excess load and insulating effect can be played as usual under rated voltage；Long-term work
Temperature range is：It -40 degrees Celsius to 1200 degrees Celsius, insulate as usual；Under the ablation of 800-1200 degrees Celsius of open fires, 1.5 is small
When it is interior not short-circuit, do not cause electrical fire, more will not be combustion-supporting；In open fire ablation process, not only fire retardant nonflame, but also no longer release and stop up
Toxic gas is ceased, there is low cigarette, nontoxic, Halogen, fire-retardant characteristic；When bearing mechanical external force, electromagnetism interference；At low cost,
Good performance indexes；It is suitable for the insulating layer of various electric wires.
First mineral insulation and the thickness ratio of the second mineral insulation are 1-1.5, the first mineral insulation
Thickness is 0.4mm-0.8mm so that the cooperation of insulating properties inside and outside cable it is more preferable, be optimal rank.
The above is only the preferred embodiment of the utility model, it is noted that for the ordinary skill people of this field
For member, under the premise of the utility model principle is not departed from, several variations and modifications can also be made, these also should be regarded as belonging to
In the scope of protection of the utility model.
Claims (6)
1. a kind of mineral insulation fire resistant cable, including cable core, it is characterised in that：The cable core is by more minerals
Insulated wire cores and more reinforced plastics sticks are twisted；Fabric hose is extruded outside cable core, extrudes and is equipped with outside fabric hose
Aluminium alloy inner sheath, the wrapped inhibiting tape outside aluminium alloy inner sheath extrude the second mineral insulation layer, second outside inhibiting tape
Inorganic thermal insulation fireprotection layer is extruded outside mineral insulation layer, the wrapped glass fiber tape outside inorganic thermal insulation fireprotection layer, in glass fibre
Band extrudes fire resistant sheath outside.
2. mineral insulation fire resistant cable according to claim 1, it is characterised in that：The mineral insulation
Core is by aluminium alloy conductor, the first mineral insulation being extruded in outside aluminium alloy conductor, overlapping around the first mineral insulation
Outer nylon resin pipe is formed.
3. mineral insulation fire resistant cable according to claim 1, it is characterised in that：Second mineral are exhausted
Edge layer is made of Environmental-protective fire-proof nanometer mineral insulation material.
4. mineral insulation fire resistant cable according to claim 2, it is characterised in that：First mineral are exhausted
Edge layer is made of Environmental-protective fire-proof nanometer mineral insulation material.
5. mineral insulation fire resistant cable according to claim 2, it is characterised in that：First mineral are exhausted
Edge layer and the thickness ratio of the second mineral insulation are 1-1.5, and the thickness of the first mineral insulation is 0.4mm-0.8mm.
6. mineral insulation fire resistant cable according to claim 1, it is characterised in that：The fire resistant
Sheath, which is woven by alkali-free glass fibre yarn after pipe, to be coated with organic high temperature-resistant silica gel and is formed through high-temperature process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721524912.4U CN207489546U (en) | 2017-11-15 | 2017-11-15 | A kind of mineral insulation fire resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721524912.4U CN207489546U (en) | 2017-11-15 | 2017-11-15 | A kind of mineral insulation fire resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207489546U true CN207489546U (en) | 2018-06-12 |
Family
ID=62473220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721524912.4U Expired - Fee Related CN207489546U (en) | 2017-11-15 | 2017-11-15 | A kind of mineral insulation fire resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207489546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107644707A (en) * | 2017-11-15 | 2018-01-30 | 江苏凯达电缆有限公司 | A kind of mineral insulation fire resistant cable |
-
2017
- 2017-11-15 CN CN201721524912.4U patent/CN207489546U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107644707A (en) * | 2017-11-15 | 2018-01-30 | 江苏凯达电缆有限公司 | A kind of mineral insulation fire resistant 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: 20180612 Termination date: 20211115 |