CN201780819U - Flame resistant multi-core flexible cable for communication power supply - Google Patents
Flame resistant multi-core flexible cable for communication power supply Download PDFInfo
- Publication number
- CN201780819U CN201780819U CN2010202779718U CN201020277971U CN201780819U CN 201780819 U CN201780819 U CN 201780819U CN 2010202779718 U CN2010202779718 U CN 2010202779718U CN 201020277971 U CN201020277971 U CN 201020277971U CN 201780819 U CN201780819 U CN 201780819U
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- stranding
- power supply
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Abstract
The utility model relates to a flame resistant multi-core flexible cable for a communication power supply, which comprises an insulated cable core (1). The cable is characterized in that the insulated cable core (1) is externally provided with a mica tape (2), and the mica tape (2) is externally provided with a cable filling rope (3); the cable filling rope (3) is externally provided with a cable wrapping tape (4), and the cable wrapping tape (4) is externally provided with a halogen-free low-smoke polyolefin jacket (5); the cable filling rope (3) is a flame resistant inorganic paper rope; and the cable wrapping tape (4) is a halogen-free low-smoke high flame resistant fire-insulation glass warping tape. In the utility model, the inorganic paper rope filling rope and the halogen-free low-smoke high flame resistant fire-insulation glass warping tape are used for replacing a glass fiber rope and a glass fiber tape which are used in an original product, and various performance indexes in the utility model completely conform to and are superior to the requirements of YD/T1173-2001 standard.
Description
Technical field
The utility model belongs to the power cable category, specifically is a kind of communication power supply with fire-resistant multicore flexible cable, and the utility model mainly is the communication power supply flexible electric power cable, cable rated operational voltage: 600/1000V.The utility model mainly is applicable to defeated, the distribution system of power supplys such as communication bureau's (station), the fire-resistant elevator of having relatively high expectations, fire-fighting system and skyscraper.。
Background technology
At present, the standard that domestic enterprise's manufacturing communication power supply is carried out with flame-retardant refractory flexible electric cable is YD/T1173-2001, and regulation stranding filling requirement is a refractory material in the standard, and the cable core surface is wrapped with fire-resistant band imbrication.At present, most of manufacturer adopts the glass rope as packing material in the fire-resisting flexible cable stranding manufacture process on the market, and is wrapped as fire-resistant band imbrication with glass fibre belt.
This existing production material and structure exist the defective that much can't overcome: it is bigger 1, to manufacture the process risk.Adopt the glass rope as packing material, because glass fibre is carefully and hard in the glass rope, uncontrollable glass fibre punctures insulating barrier in the production process, thereby withstand voltage test causes the cable many places to puncture in detecting, and cable can not be used.2, do not meet the environmental-protecting performance requirement.Because glass fibre is thin and light in the glass rope, produce and use in fly away easily, lung and the skin of workman in the production place is damaged.3, increase labour cost and protection expense.Because glass fibre can cause production operation personnel skin very to itch in the glass rope, operating personnel must protect skin not to be exposed to as far as possible in the air in the production, increase protective articles.Because operating personnel are had injury, enthusiasm for production is not high, needs the time when increasing protection, so production efficiency is lower.4, properties of product need to promote.Because the material that uses in the original product all is the traditional material before 15 years, is accompanied by the appearance of new material, the fire resistance period of product and performance can be highly improved.。
Summary of the invention
The utility model purpose is in order to overcome above-mentioned defective, and the communication power supply low smoke, zero halogen fire-resisting flexible cable of a kind of high temperature resistant, flame resistant, high flame retardant is provided.
The technical solution of the utility model is:
Stranding gasket for packing of the present utility model adopts fire-retardant inorganic paper string to substitute the glass rope; The stranding twining package tape adopts low smoke, zero halogen high flame retardant fire insulation glass cloth band to substitute glass fibre belt.
A kind of communication power supply comprises insulated wire cores with fire-resistant multicore flexible cable, and described insulated wire cores is provided with mica tape outward, and mica tape is provided with the stranding gasket for packing outward, and the stranding gasket for packing is provided with the stranding twining package tape outward, and stranding twining package tape peripheral hardware has the low smoke, zero halogen polyolefin jacket.
Described stranding gasket for packing is fire-retardant inorganic paper string.
Described stranding twining package tape is a low smoke, zero halogen high flame retardant fire insulation glass cloth band.
The beneficial effects of the utility model are:
The utility model adopts inorganic paper string gasket for packing and low smoke, zero halogen high flame retardant fire insulation glass cloth band to substitute and uses glass rope and glass fibre belt in the original product.Inorganic mineral paper rope of the present utility model have density greatly, do not burn, the heat resistance height, closely be difficult for ventilative.That the cable that manufactures has is high temperature resistant, flame resistant, not Halogen, be not fuming, ampacity improves characteristics such as about 10%.Communication power supply of the present utility model is filled wrapped structure with fire-resistant multicore flexible cable stranding and is adopted low smoke, zero halogen high flame retardant fire insulation glass cloth band to substitute original glass fibre belt that uses, low smoke, zero halogen high flame retardant fire insulation glass cloth band refuge floor is met fire and is resolved into metal oxide and separate out the crystallization water, metal oxide decomposes the back and forms network structure, and flue gas is had certain suction-operated.And the crystallization water of separating out not only plays tangible settlement action to soot, but also has endothermic effect preferably.Every performance index of the product of producing meet and are better than the requirement of YD/T1173-2001 standard fully.
Description of drawings
Fig. 1 is a vertical section structure schematic diagram of the present utility model.
Fig. 2 is a cross-sectional structure schematic diagram of the present utility model.
Among the figure: 1, insulated wire cores, 2, mica tape, 3, the stranding gasket for packing, 4, the stranding twining package tape, 5, the low smoke, zero halogen polyolefin jacket.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
A kind of communication power supply comprises insulated wire cores 1 with fire-resistant multicore flexible cable, the insulated wire cores 1 outer mica tape 2 that is provided with, and the mica tape 2 outer stranding gasket for packings 3 that are provided with are provided with stranding twining package tape 4 outside the stranding gasket for packing 3, and stranding twining package tape 4 peripheral hardwares have low smoke, zero halogen polyolefin jacket 5.
Stranding gasket for packing 3 is fire-retardant inorganic paper string.
Stranding twining package tape 4 is a low smoke, zero halogen high flame retardant fire insulation glass cloth band.
When communication power supply is produced with fire-resisting flexible cable stranding operation, adopt fire-retardant inorganic paper string to substitute original glass rope that uses, fire-retardant inorganic paper string is mainly pulverized with pulverizer respectively by mineral wool and waste paper; The water, the 7-9.5% waste paper scrap that in mixer, add 30-37% earlier, after the stirring, add 7-9.5%MgO, 7-9.5%Al ↓ ［ 2 ］ O ↓ ［ 3 ］, 15-19%SiO ↓ ［ 2 ］ successively, stir after 10-50 minute, add 25-30% vinyl acetate ethylene copolymerization emulsions again, stirred again 10-50 minute, and made paper pulp; With weight is that 1: 1 mineral wool powder and paper pulp mixes, and adopts plastic extruding machine, is 2mm left and right sides raw yarn through heating, compress, integrate, extrude diameter, and heating-up temperature is 100-220 ℃; Again former skein is made inorganic mineral paper rope.Inorganic mineral paper rope have density greatly, do not burn, the heat resistance height, closely be difficult for ventilative.That the cable that manufactures has is high temperature resistant, flame resistant, not Halogen, be not fuming, ampacity improves characteristics such as about 10%.
Before communication power supply is stranded with fire-resisting flexible cable stranding operation cable core, accurately measure the insulated wire cores external diameter, through the outer interval area of detailed calculated core, adopt 2-3 fire-retardant inorganic paper string sectional area summations greater than interval area, adopt the mode of closely filling; The first stranding pressing mold size is according to the numerical value of insulated wire cores outer diameter parameters through accurate calculating, the second stranding pressing mold size is according to the little 0.2--1.0mm of numeric ratio evaluation of cable size and the tight situation employing of cable core, mode is pressed in the stranded employing of stranding, make the communication power supply of production become cable core rounding, tight as much as possible, be difficult for ventilative with fire-resisting flexible cable.Like this, when cable in the combustion flame more than 800 ℃, the time that insulating barrier low smoke, zero halogen polyolefine material is burnt between core can be prolonged effectively.
When communication power supply is used the wrapped production of fire-resisting flexible cable stranding operation, adopt low smoke, zero halogen high flame retardant fire insulation glass cloth band to substitute original glass fibre belt that uses, low smoke, zero halogen high flame retardant fire insulation glass cloth band refuge floor is met fire and is resolved into metal oxide and separate out the crystallization water, metal oxide decomposes the back and forms network structure, and flue gas is had certain suction-operated.And the crystallization water of separating out not only plays tangible settlement action to soot, but also has endothermic effect preferably.Can form the carbonization structure in this external combustion process, this carburization zone is being brought into play enormous function aspect the low cigarette of cable, fire-retardantization, burning rate when the heat-absorbing action delay cable takes fire itself and the time of sharply rising, because the formation of carbonization structure, thereby the supply of oxygen and flowing of fuel gas have been hindered, therefore the burning of having resisted cable.When communication power supply is used the wrapped production of fire-resisting flexible cable stranding operation, the wrapped pressing mold size and the second stranding pressing mold consistent size, it is about 50% that low smoke, zero halogen high flame retardant fire insulation glass cloth band adopts wrapped Duplication, basic guarantee that the cable surface is wrapped and reach 2 layers of low smoke, zero halogen high flame retardant fire insulation glass cloth band, wrappedly require smoothly, smooth, tight, be difficult for ventilative.Owing to contain the metal hydrate composition in the low smoke, zero halogen high flame retardant fire insulation glass cloth band, be difficult for breathing freely, have fire insulation performance preferably, make flexible cable become cable core insulating barrier low smoke, zero halogen polyolefine material to be difficult for burning, prolong the cable fire resistance period effectively, guarantee communication power supply fire-resisting flexible cable excellent quality, stable, reliable.
Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and scope are limited; do not breaking away under the utility model design concept prerequisite; common engineers and technicians make the technical solution of the utility model in this area various modification and improvement; all should fall into protection range of the present utility model, the technology contents that the utility model is asked for protection all is documented in claims.
Claims (3)
1.
A kind of communication power supply is with fire-resistant multicore flexible cable, comprise insulated wire cores (1), it is characterized in that the outer mica tape (2) that is provided with of described insulated wire cores (1), the outer stranding gasket for packing (3) that is provided with of mica tape (2), stranding gasket for packing (3) is outer to be provided with stranding twining package tape (4), and stranding twining package tape (4) peripheral hardware has low smoke, zero halogen polyolefin jacket (5).
2.
Communication power supply according to claim 1 is characterized in that with fire-resistant multicore flexible cable described stranding gasket for packing (3) is fire-retardant inorganic paper string.
3.
Communication power supply according to claim 1 is characterized in that with fire-resistant multicore flexible cable described stranding twining package tape (4) is a low smoke, zero halogen high flame retardant fire insulation glass cloth band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202779718U CN201780819U (en) | 2010-08-02 | 2010-08-02 | Flame resistant multi-core flexible cable for communication power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202779718U CN201780819U (en) | 2010-08-02 | 2010-08-02 | Flame resistant multi-core flexible cable for communication power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201780819U true CN201780819U (en) | 2011-03-30 |
Family
ID=43794025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202779718U Expired - Lifetime CN201780819U (en) | 2010-08-02 | 2010-08-02 | Flame resistant multi-core flexible cable for communication power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201780819U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347101A (en) * | 2010-08-02 | 2012-02-08 | 江苏俊知技术有限公司 | Fire-resistant multi-core flexible cable for communication power supply |
| RU216950U1 (en) * | 2022-11-24 | 2023-03-13 | Общество с ограниченной ответственностью "Камский кабель" | Single-phase halogen-free cable with two-layer paper insulation |
-
2010
- 2010-08-02 CN CN2010202779718U patent/CN201780819U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347101A (en) * | 2010-08-02 | 2012-02-08 | 江苏俊知技术有限公司 | Fire-resistant multi-core flexible cable for communication power supply |
| RU216950U1 (en) * | 2022-11-24 | 2023-03-13 | Общество с ограниченной ответственностью "Камский кабель" | Single-phase halogen-free cable with two-layer paper insulation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |
|
| CX01 | Expiry of patent term |