CN208985737U - A kind of low pressure inorganic mineral insulation flexible fireproof cable - Google Patents
A kind of low pressure inorganic mineral insulation flexible fireproof cable Download PDFInfo
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- CN208985737U CN208985737U CN201821762904.8U CN201821762904U CN208985737U CN 208985737 U CN208985737 U CN 208985737U CN 201821762904 U CN201821762904 U CN 201821762904U CN 208985737 U CN208985737 U CN 208985737U
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Abstract
A kind of low pressure inorganic mineral insulation flexible fireproof cable, from-inner-to-outer successively have inner core cable, minerals fireprotection layer, halogen-free low-smoke high-flame band, LSOH anti-flaming sheath to coat；The inner core cable is successively coated by conductor, inorganic mineral insulation layer and crosslinked polyetylene insulated layer from-inner-to-outer；Low smoke, zero halogen packing is additionally provided in the minerals fireprotection layer, the low smoke, zero halogen packing is set side by side in the same direction with the inner core cable.Beneficial effect is: having the advantages that fire prevention, explosion-proof, heatproof, current-carrying capacity are big；It is not easy the moisture absorption, insulation performance is more stable；Can multicore, production with fixed lengths, be not necessarily to transition joint, structural flexibility, convenient for bending, be not necessarily to special-purpose terminal, the sorrow of no attachment；Suitable for various system of laying, general electrical personnel can the laying method of routinely cable carry out.
Description
Technical field
The utility model belongs to field of cables more particularly to a kind of minerals fire-resisting cable.
Background technique
Currently, common mineral insulated cable is mostly with conductor, magnesium oxide insulated layer and steel sheath or copper sheath layer group
At.Place of this kind of cable for some special occasions and bad environments, being easy to appear causes because magnesium oxide insulated is easy the moisture absorption
Decreasing insulating, and because protective metal shell is rigidly harder is not easy to achieve the effect that parallel clean and tidy, and route in laying
Lengthening joint is more, searches that fault point is relatively difficult, and brake forming is difficult, and difficulty of construction is larger, cable be easy to damage in laying into
The phenomenon that water and dampness lead to cable breakdown, the service life and personal safety as well as the property safety of cable are seriously affected, to power supply unit
And electrical equipment brings security risk.
Utility model content
To solve the above-mentioned problems, the utility model adopts the following technical solution:
A kind of low pressure inorganic mineral insulation flexible fireproof cable, from-inner-to-outer successively have inner core cable, minerals fire prevention
Layer, halogen-free low-smoke high-flame band, LSOH anti-flaming sheath coat；
The inner core cable successively coated by conductor, inorganic mineral insulation layer and crosslinked polyetylene insulated layer from-inner-to-outer and
At；
Low smoke, zero halogen packing, the low smoke, zero halogen packing and inner core electricity are additionally provided in the minerals fireprotection layer
Cable is set side by side in the same direction.
Preferably, the inner core cable is one or more.
Preferably, the conductor is twisted by several annealed copper wires.
Preferably, the inorganic mineral insulation layer is that mica tape is overlapped wrapped form.
Preferably, the mica tape is that 50-55% itself overlapping is wrapped.
Preferably, the hot elongation percentage of crosslinked polyetylene insulated layer is 55-95%.
Preferably, the crosslinked polyetylene insulated layer is handled through ultraviolet light irradiation.
Preferably, the crosslinked polyetylene insulated layer is extruded in outside the inorganic mineral insulation layer.
Preferably, the minerals fireprotection layer is the adhesive comprising magnesium hydroxide and sodium metasilicate.
The beneficial effects of the utility model are:
1. having the advantages that fire prevention, explosion-proof, heatproof, current-carrying capacity are big；
2. being not easy the moisture absorption, insulation performance is more stable；
3. can multicore, production with fixed lengths, be not necessarily to transition joint, structural flexibility, convenient for bending, be not necessarily to special-purpose terminal, no attachment
Sorrow；
4. be suitable for various system of laying, general electrical personnel can the laying method of routinely cable carry out.
Detailed description of the invention
Fig. 1 is the utility model section structural schematic diagram.
In figure: 1 conductor, 2 inorganic mineral insulation layers, 3 crosslinked polyetylene insulated layers, 4 low smoke, zero halogen packings, 5 minerals
Fireprotection layer, 6 halogen-free low-smoke high-flame bands, 7 LSOH anti-flaming sheaths.
Specific embodiment
The utility model is further described with reference to the accompanying drawing:
A kind of low pressure inorganic mineral insulation flexible fireproof cable, from-inner-to-outer successively have inner core cable, minerals fire prevention
Layer 5, halogen-free low-smoke high-flame band 6, LSOH anti-flaming sheath 7 coat；
Wherein, LSOH anti-flaming sheath 7 has preferable anti-flammability, can effectively inhibit a large amount of harmful substances in burning
The generation of (dense smoke and toxic gas) reduces smoke density, improves visible level.
The inner core cable is successively wrapped by conductor 1, inorganic mineral insulation layer 2 and 3 from-inner-to-outer of crosslinked polyetylene insulated layer
It covers；
Be additionally provided with low smoke, zero halogen packing 4 in the minerals fireprotection layer 5, the low smoke, zero halogen packing 4 with it is described interior
Core cable is set side by side in the same direction.
The inner core cable is one or more.
When inner core cable is more, low smoke, zero halogen packing 4 is arranged between more inner core cables；
The conductor 1 is twisted by several annealed copper wires.
The inorganic mineral insulation layer 2, which is that mica tape overlapping is wrapped, to be formed.The mica tape is with industrial chemicals through high temperature melting
Melt cooling crystallization and be made, the fraction of single-chip is KMg3(AlSi3O10)F2, belong to monoclinic system, be typical laminar silicic acid
Salt, high temperature resistance is good, is free of the crystallization water, and fusing point reaches 1375 DEG C, under the high temperature conditions, the volume resistance of synthetic fluorophlogopite
Rate is 1000 times higher than natural mica, electrical insulating property is good, vacuum discharge is extremely low under high temperature and acid and alkali-resistance, it is transparent, stripping and richness can be divided
The features such as flexible,
The mica tape is that 50-55% itself overlapping is wrapped.
The hot elongation percentage of the crosslinked polyetylene insulated layer 3 is 55-95%；The crosslinked polyetylene insulated layer 3 is through ultraviolet light
Radiation treatment.The mechanical performance and electric property for improving cross linked insulation avoid copper conductor and are crosslinked in cross linked insulation thermophilic digestion
When the phenomenon that leading to oxidation stain.
The crosslinked polyetylene insulated layer 3 is extruded in outside the inorganic mineral insulation layer 2.
The minerals fireprotection layer 5 is the adhesive comprising magnesium hydroxide and sodium metasilicate；A kind of situation is that magnesium hydroxide adds
Work be it is powdered, certain density sodium metasilicate is added, it is oxygen barrier to be deployed into magnesium hydroxide according to certain formula rate (such as 1:1)
Layer mud, extrudes by twin-screw grouter and is filled into cable core；Because magnesium hydroxide sheet is fire retardant, it is decomposed into when heated
Magnesia adds water, and water absorbs a large amount of heat, reduces the surface combustion temperature of cable.
In addition, the utility model is not limited to above embodiment, as long as it reaches this reality with essentially identical means
With novel technical effect, the protection scope of the utility model all should belong to.
Claims (9)
1. a kind of low pressure inorganic mineral insulation flexible fireproof cable, it is characterised in that: its from-inner-to-outer is successively by inner core cable, mine
Substance fireprotection layer (5), halogen-free low-smoke high-flame band (6), LSOH anti-flaming sheath (7) coat；
The inner core cable by conductor (1), inorganic mineral insulation layer (2) and crosslinked polyetylene insulated layer (3) from-inner-to-outer successively
It coats；
Is additionally provided with low smoke, zero halogen packing (4) in the minerals fireprotection layer (5), the low smoke, zero halogen packing (4) with it is described
Inner core cable is set side by side in the same direction.
2. a kind of low pressure inorganic mineral insulation flexible fireproof cable according to claim 1, it is characterised in that: the inner core
Cable is one or more；When inner core cable be more when, low smoke, zero halogen packing (4) setting the more inner core cables it
Between.
3. a kind of low pressure inorganic mineral insulation flexible fireproof cable according to claim 1, it is characterised in that: the conductor
(1) it is twisted by several annealed copper wires.
4. a kind of low pressure inorganic mineral insulation flexible fireproof cable according to claim 1, it is characterised in that: described inorganic
Mineral insulation (2), which is that mica tape overlapping is wrapped, to be formed.
5. a kind of low pressure inorganic mineral insulation flexible fireproof cable according to claim 4, it is characterised in that: the mica
Band is that 50-55% itself overlapping is wrapped.
6. a kind of low pressure inorganic mineral insulation flexible fireproof cable according to claim 1, it is characterised in that: the crosslinking
Polyethylene layer (3) hot elongation percentage is 55-95%.
7. a kind of low pressure inorganic mineral insulation flexible fireproof cable according to claim 6, it is characterised in that: the crosslinking
Polyethylene layer (3) is handled through ultraviolet light irradiation.
8. a kind of low pressure inorganic mineral insulation flexible fireproof cable according to claim 1, it is characterised in that: the crosslinking
Polyethylene layer (3) is extruded in the inorganic mineral insulation layer (2) outside.
9. a kind of low pressure inorganic mineral insulation flexible fireproof cable according to claim 1, it is characterised in that: the mineral
Matter fireprotection layer (5) is the adhesive comprising magnesium hydroxide and sodium metasilicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821762904.8U CN208985737U (en) | 2018-10-29 | 2018-10-29 | A kind of low pressure inorganic mineral insulation flexible fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821762904.8U CN208985737U (en) | 2018-10-29 | 2018-10-29 | A kind of low pressure inorganic mineral insulation flexible fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208985737U true CN208985737U (en) | 2019-06-14 |
Family
ID=66789419
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821762904.8U Active CN208985737U (en) | 2018-10-29 | 2018-10-29 | A kind of low pressure inorganic mineral insulation flexible fireproof cable |
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| CN (1) | CN208985737U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114121370A (en) * | 2021-11-26 | 2022-03-01 | 安徽蒙特尔电缆集团有限公司 | Preparation method of B1-grade flame-retardant mineral substance insulated flexible fireproof cable |
-
2018
- 2018-10-29 CN CN201821762904.8U patent/CN208985737U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114121370A (en) * | 2021-11-26 | 2022-03-01 | 安徽蒙特尔电缆集团有限公司 | Preparation method of B1-grade flame-retardant mineral substance insulated flexible fireproof cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.19, Yongfeng Road, Yonghe Economic Zone, Guangzhou Economic and Technological Development Zone, Guangdong 510000 Patentee after: Guangzhou Nanyang cable group Co.,Ltd. Address before: No.19, Yongfeng Road, Yonghe Economic Zone, Guangzhou Economic and Technological Development Zone, Guangdong 510000 Patentee before: GUANGZHOU NANYANG CABLE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |