CN213844845U

CN213844845U - Novel fire prevention is high temperature resistant long-life special equipment connecting wire

Info

Publication number: CN213844845U
Application number: CN202022437500.5U
Authority: CN
Inventors: 曹弘皎; 王超君; 王雪奎
Original assignee: People's Cable Group Co ltd
Current assignee: People's Cable Group Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-07-30
Anticipated expiration: 2030-10-28

Abstract

The utility model belongs to the technical field of the cable, concretely relates to novel fire prevention is high temperature resistant long-life special equipment connecting wire, include the cable core of constituteing by two piece at least insulation core, every insulation core contains conductor, the high temperature resistant layer of first layer and around the covering in proper order from inside to outside, it has shielding layer and the high temperature resistant layer of second floor to wind the covering outward, the cable core gap packing has the filling rope, the outside of cable core vertically winds the package and has the glass silk fibre band the outer lane crowded package in glass silk fibre band has the oversheath. The utility model discloses a high temperature resistant inorganic material to design multiple high temperature resistant layer, improved the high temperature resistance ability of cable, ageing-resistant, waterproof, feature of environmental protection and life.

Description

Novel fire prevention is high temperature resistant long-life special equipment connecting wire

Technical Field

The utility model belongs to the technical field of the cable, concretely relates to novel fire prevention is high temperature resistant long-life special equipment connecting wire is applied to electrical apparatus, instrument, distribution device's signal transmission, control.

Background

Today, the rapid development of science and technology, cable communication is indispensable, and the wire and cable industry in China has increased by more than 20% every year, and is the biggest wire and cable producing country in the world beyond the United states. Therefore, the matching cable material, the manufacturing industry of cable equipment or the corresponding matching system is gradually improved. The cable is usually used in subway stations, computer control centers, high-rise buildings, hotels, broadcast stations, important military facilities and the like, and places with concentrated personnel and low air density. When the common cable is selected, the cable has fierce fire when a fire accident happens, the fire is rapid to burn, and the smoke hazard is large. A large amount of harmful gases such as carbon dioxide, carbon monoxide, hydrogen chloride and the like are generated by combustion, and the cable containing halogen and heavy metal chemical components can cause pollution hazards such as air, water quality, soil and the like, thereby seriously harming the health of people. The relevant authority statistical data show that from 2008 to 2010, about 4 thousands of fires caused by the use of electric wires and cables occur in China every year, and the number of the fires is about 110 per day on average, so that the fire is a high-ranking fire cause.

The traditional equipment connecting wire adopts a polyvinyl chloride insulation and common mica tape fire-resistant layer structure, so that the service life of the product is short in the using process, and safety risks exist, therefore, fire caused by cables is necessary to be fundamentally solved, and personal and property safety is guaranteed.

Disclosure of Invention

Not enough to prior art, the utility model provides a novel fire prevention is high temperature resistant long-life special equipment connecting wire adopts high temperature resistant inorganic material to design multiple high temperature resistant layer, improved the high temperature resistance ability, ageing-resistant, waterproof, the feature of environmental protection and the life of cable.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a novel fire prevention is high temperature resistant long-life special equipment connecting wire, include the cable core of compriseing two piece at least insulation core, every insulation core contains conductor, the high temperature resistant layer of first layer and around the covering in proper order from inside to outside, it has shielding layer and the high temperature resistant layer of second floor to wind the package outside the covering, the cable core gap packing has the filling rope, the outside of cable core vertically has the glass silk fibre band around the crowded package in outer lane of glass silk fibre band has the oversheath.

Furthermore, the conductor is a tinned copper conductor formed by stranding tinned copper wires.

Further, the first high-temperature-resistant layer sequentially comprises a high-temperature polyester tape, a ceramic silicon rubber composite tape and a double-faced synthetic mica tape from inside to outside.

Furthermore, the lapping layer is formed by lapping and lapping polyester belt single-layer lapping covers.

Furthermore, the shielding layer comprises an aluminum-plastic composite belt and oxygen-free soft copper wires, the aluminum-plastic composite belt is longitudinally wrapped outside the wrapping layer, and the oxygen-free soft copper wires with the weaving density of 40% are wrapped outside the aluminum-plastic composite belt.

Further, the second high temperature resistant layer is a silicon rubber ceramic band.

Further, the outer sheath is a nylon sheath.

Further, the filling rope is a glass fiber rope.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses a novel fire prevention is high temperature resistant long-life special equipment connecting wire, the high temperature resistant layer of first layer adopts high temperature resistant inorganic material to constitute, high temperature polyester area is chooseed for use to the material, compound area of porcelainized silicon rubber and two-sided synthetic mica tape, porcelainized silicon rubber compound area fire prevention fire resistance is excellent, can tie into the casing of pottery form under 350 ℃ -3000 ℃ flame condition, the mica content of two-sided synthetic mica tape is greater than or equal to 55%, can resist temperature 1000 ℃, the high temperature resistant inorganic material that the high temperature resistant layer of first layer chooseed for use meets the back of fire, prevent fires, it is fire-retardant, low cigarette, characteristics such as nontoxic are splendid, do not melt and do not drip in the conflagration environment, guaranteed to have played firm guard action in the unobstructed power transmission under the conflagration condition, can not produce gas to the human body.

2. Traditional fire-resistant cable fire-resistant structure is single, and fire resistance is relatively poor, can not guarantee completely that meet the integrality of the back circuit of fire, the utility model discloses a three-layer fire-resistant structure, the high temperature resistant layer of first layer (high temperature polyester area, the compound area of porcelainized silicon rubber and two-sided synthetic mica tape), the high temperature resistant layer of second floor (porcelainized silicon rubber area) and glass silk fibre area have further improved the high temperature resistant performance of product promptly.

3. Although the utility model is additionally provided with the three-layer fireproof structure, the whole product cost is not increased, and the aluminum-plastic composite belt and the oxygen-free soft copper wire are adopted in the shielding layer on one side, so that the production cost is reduced on the premise of ensuring the qualified fire resistance and service performance; on the other hand, the nylon sheath is adopted, and the nylon sheath can reduce the thickness of the sheath due to the lower density of the nylon material, so that the weight and the outer diameter of a finished product of the product are integrally reduced, and the production cost, the transportation cost, the construction cost and the year replacement cost are reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

Fig. 1 is the utility model discloses novel fire prevention is high temperature resistant, and long-life special equipment connecting wire's structural schematic diagram.

The reference numbers in the figures denote:

1. the cable comprises a conductor, 2 a first high-temperature-resistant layer, 3 a wrapping layer, 4 a shielding layer, 5 a second high-temperature-resistant layer, 6 a glass fiber tape, 7 an outer sheath and 8 a filling rope.

Detailed Description

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments.

As shown in fig. 1, the novel fire prevention is high temperature resistant long-life special equipment connecting wire of this embodiment, include the cable core of compriseing two piece at least insulation core, it is preferred, the cable core comprises three insulation core that are the article style of calligraphy, every insulation core contains conductor 1 from inside to outside in proper order, first layer is high temperature resistant layer 2 and winds covering 3, it has shielding layer 4 and second floor high temperature resistant layer 5 to wind the covering 3 outward, the cable core gap packing has filling rope 8, the outside of cable core vertically winds the package and has glass fiber tape 6, it has oversheath 7 to extrude the package in glass fiber tape 6's outer lane.

Preferably, the conductor 1 is a tinned copper conductor formed by stranding tinned copper wires, the tinned copper conductor belongs to the 6 th conductor in GB/T3956-2008, and the tinned copper wires have excellent weldability and are not easy to oxidize, so that the service life of the product is prolonged.

The first high-temperature resistant layer 2 can also be called an insulating layer and is formed by 2+2+2 layers of high-temperature resistant inorganic materials, two layers of high-temperature polyester tapes, two layers of ceramic silicon rubber composite tapes and two layers of double-sided synthetic mica tapes are sequentially selected from the materials from inside to outside, the ceramic silicon rubber composite tapes are excellent in fireproof and fire-resistant performance and can be formed into a ceramic shell under the flame condition of 350-3000 ℃, the mica content of the double-sided synthetic mica tapes is more than or equal to 55%, and the ceramic double-sided synthetic mica tapes can resist the temperature of 1000 ℃.

The lapping layer 3 is formed by lapping and lapping polyester belt single-layer lapping and covering, and the overlapping rate is more than or equal to 50%. The shielding layer 4 comprises an aluminum-plastic composite belt and anaerobic soft copper wires, the polyester belt is longitudinally wrapped with the aluminum-plastic composite belt, the anaerobic soft copper wires with the weaving density of 40% are wrapped outside the aluminum-plastic composite belt, compared with the traditional cable, the electromagnetic interference resistance is improved by 20%, the signal attenuation loss is smaller, and the overall material cost of the cable is reduced.

The second high temperature resistant layer 5 is the silicon rubber area of pottery, and the third high temperature resistant layer is glass silk fibre area 6, and first high temperature resistant layer 2 is added, and the cable of this example designs the high temperature resistant layer of three-layer, has further improved the high temperature resistance of product.

The gap of the cable core is filled and rounded by adopting a high-temperature-resistant glass fiber rope, the cabling belt is wrapped by adopting a glass fiber belt 6, and the cover lapping rate is more than or equal to 30%; the product performance meets the A-grade bundled combustion experiment of GB/T19666-2019 standard.

The outer sheath 7 is a nylon sheath, and compared with the traditional polyvinyl chloride sheath material, on one hand, the tensile strength of the outer sheath is 5.5 times that of the polyvinyl chloride material, and the outer sheath has better mechanical strength, environmental protection performance, wear resistance, aging resistance and corrosion resistance, so that the friction coefficient in the product construction process is obviously reduced, the product damage is prevented, the construction efficiency and the working quality are greatly improved, the service life of the product is prolonged, the release amount of halogen gas (such as Cl, F, Br and I) is reduced, and the outer sheath belongs to an environment-friendly cable product; on the other hand, the density of the nylon material is relatively small, the thickness of the sheath can be reduced by selecting the nylon sheath, the weight and the outer diameter of a finished product are integrally reduced, and the production cost, the transportation cost and the construction cost of the construction strength level are reduced.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Finally, it is to be noted that: the above description is only the preferred embodiment of the present invention, which is only used to illustrate the technical solution of the present invention, and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention is included in the protection scope of the present invention.

Claims

1. The utility model provides a novel fire prevention is high temperature resistant long-life special equipment connecting wire, a serial communication port, include the cable core of compriseing two piece at least insulation core, every insulation core contains conductor, the high temperature resistant layer of first layer in proper order from inside to outside and around the covering, it has shielding layer and the high temperature resistant layer of second floor to wind around the covering outward, the cable core gap packing has the filling rope, the outside of cable core vertically has the glass silk fibre band around the crowded package of outer lane in glass silk fibre band has the oversheath.

2. The novel fireproof high-temperature-resistant long-life special equipment connecting wire according to claim 1, wherein the conductor is a tinned copper conductor formed by stranding tinned copper wires.

3. The novel fireproof high-temperature-resistant long-life special equipment connecting wire as claimed in claim 1, wherein the first high-temperature-resistant layer comprises a high-temperature polyester tape, a ceramic silicon rubber composite tape and a double-sided synthetic mica tape from inside to outside in sequence.

4. The novel fireproof high-temperature-resistant long-life special equipment connecting wire as claimed in claim 1, wherein the wrapping layer is formed by lapping polyester tapes in a single-layer overlapping manner.

5. The novel fireproof high-temperature-resistant long-life special equipment connecting wire as claimed in claim 1, wherein the shielding layer comprises an aluminum-plastic composite belt and oxygen-free soft copper wires, the aluminum-plastic composite belt is longitudinally wrapped around the outer side of the covering layer, and the oxygen-free soft copper wires with the weaving density of 40% are wrapped on the outer side of the aluminum-plastic composite belt.

6. The novel fireproof high-temperature-resistant long-life special equipment connecting wire as claimed in claim 1, wherein the second high-temperature-resistant layer is a silicon ceramic rubber belt.

7. The novel fireproof high-temperature-resistant long-life special equipment connecting wire as claimed in claim 1, wherein the outer sheath is a nylon sheath.

8. The novel fireproof high-temperature-resistant long-life special equipment connecting wire as claimed in claim 1, wherein the filling rope is a glass fiber rope.