CN213752082U

CN213752082U - Fire-resistant cable capable of being ceramized

Info

Publication number: CN213752082U
Application number: CN202021778339.1U
Authority: CN
Inventors: 吴长凯; 项宏波; 曹胜鑫; 田驰
Original assignee: Shenzhen Aowei Cable Manufacturing Co ltd
Current assignee: Shenzhen Aowei Cable Manufacturing Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-07-20
Anticipated expiration: 2030-08-24

Abstract

The utility model provides a can pottery fire resisting cable relates to a wire and cable technical field. The utility model discloses an including the cable body, the cable body includes the cable core and sets up the protective sheath in the cable core outside, wherein, the cable core includes first cable core, second cable core and third cable core, is provided with the spacer in the protective sheath, and the spacer includes first spacer, second spacer and third spacer, and first cable core is located between first spacer and the second spacer, and the second cable core is located between second spacer and the third spacer, and the third cable core is located between third spacer and the first spacer. The utility model discloses have splendid fire prevention fire-resistant characteristic, can not influence the circuit communication in the conflagration, simple structure moreover, the environmental protection is nontoxic to the fire resistance is high, and the comprehensive properties is excellent.

Description

Fire-resistant cable capable of being ceramized

Technical Field

The utility model relates to a wire and cable technical field especially relates to a can pottery fire resisting cable.

Background

Along with the frequent occurrence of fire accidents, people continuously deepen the understanding of the fire hazard risk of the electric wire and the electric cable, and the requirements of relevant departments on the performances of fire prevention, flame retardance and the like of the electric wire and the electric cable are higher and higher. The cable fire disaster has the characteristics of fast spread, difficult fire fighting, secondary hazard generation, long recovery time and the like, and can bring huge loss to national economy and the lives and properties of people. Therefore, more severe operating conditions are provided for the flame retardant property, the fireproof property and the safety and reliability of the wires and cables. If the fire-fighting elevator and the fire pump are in fire prevention, explosion prevention, strong overload capacity and long service life, the fire-fighting elevator and the fire pump need to be kept in normal operation for a certain time under the condition of fire, and the cable has special requirements of low smoke, low halogen and low toxicity after combustion, even no smoke, no halogen, no toxicity and the like.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists in the above-mentioned problem, the utility model provides a but ceramization fire resisting cable makes it have splendid fire prevention fire resisting property, can not influence the circuit communication in the conflagration, simple structure moreover, the environmental protection is nontoxic to the fire resistance is high, and the comprehensive properties is excellent.

In order to solve the problem, the utility model provides a fire resisting cable can pottery, which comprises a cable body, the cable body includes the cable core and sets up the protective sheath in the cable core outside, wherein, the cable core includes first cable core, second cable core and third cable core, be provided with the spacer in the protective sheath, the spacer includes first spacer, second spacer and third spacer, first cable core is located first spacer with between the second spacer, the second cable core is located the second spacer with between the third spacer, the third cable core is located the third spacer with between the first spacer.

Preferably, the first cable core is formed by twisting a plurality of insulated wire cores, and the first cable core includes a first insulated wire core, a second insulated wire core, a third insulated wire core, a fourth insulated wire core, a fifth insulated wire core, a sixth insulated wire core and a seventh insulated wire core.

Preferably, the second cable core comprises a first round cable core and a second round cable core which are arranged in parallel, the first insulating layer is coated on the outer sides of the first cable core and the second cable core, and a first fire-resistant layer is coated on the outer side of the first insulating layer.

Preferably, the third cable core comprises four bundles of annealing copper conductors arranged side by side, a second insulating layer is wrapped around the outer periphery of each bundle of annealing copper conductors, a second fire-resistant layer is wrapped on the outer sides of the four bundles of annealing copper conductors, and a third insulating layer is wrapped on the outer side of the second fire-resistant layer.

Preferably, the protective sheath includes an inner cushion layer, a fireproof layer and an outer sheath, the inner cushion layer is arranged on the outer side of the cable core, the fireproof layer is arranged on the outer side of the inner cushion layer, and the outer sheath is arranged on the outer side of the fireproof layer.

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

the utility model discloses have splendid fire prevention fire-resistant characteristic, can not influence the circuit communication in the conflagration, simple structure moreover, the environmental protection is nontoxic to the fire resistance is high, and the comprehensive properties is excellent.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples, which are not intended to limit the present invention.

As shown in fig. 1, the embodiment of the utility model provides a package cable body, the cable body includes the cable core and sets up the protective sheath in the cable core outside, the cable core includes first cable core, second cable core and third cable core, be provided with the spacer in the protective sheath, the spacer includes first spacer 1, second spacer 2 and third spacer 3, first cable core is located between first spacer 1 and the second spacer 2, the second cable core is located between second spacer 2 and the third spacer 3, the third cable core is located between third spacer 3 and the first spacer 1.

In this embodiment, the first cable core 4 is formed by twisting a plurality of insulated wire cores, the first cable core 4 includes a first insulated wire core 7, a second insulated wire core, a third insulated wire core, a fourth insulated wire core, a fifth insulated wire core, a sixth insulated wire core and a seventh insulated wire core, and the first insulated wire core 7 is located at the center of the second insulated wire core, the third insulated wire core, the fourth insulated wire core, the fifth insulated wire core, the sixth insulated wire core and the seventh insulated wire core.

In this embodiment, the second cable core includes a first circular cable core 8 and a second circular cable core 9 that are arranged in parallel, the outer side of the first circular cable core 8 and the outer side of the second circular cable core 9 are coated with a first insulating layer 10, and the outer side of the first insulating layer 10 is coated with a first flame retardant coating 11. The third cable core comprises four bundles of annealing copper conductors 12 arranged side by side in pairs, the outer periphery of each bundle of annealing copper conductors 12 is wrapped with a second insulating layer 13, the outer sides of the four bundles of annealing copper conductors 12 are wrapped with a second fire-resistant layer 14, and the outer side of the second fire-resistant layer 14 is wrapped with a third insulating layer 15. The first insulating layer 10, the second insulating layer 13 and the third insulating layer 15 all adopt insulating rubber skins, and the first fire-retardant layer 11 and the second fire-retardant layer 14 are high-fire-retardant filling rope layers.

In this embodiment, the protective sheath includes inner cushion layer 16, fire prevention flame retardant coating 17 and oversheath 18, and inner cushion layer 16 sets up in the outside of cable core, and fire prevention flame retardant coating 17 sets up in the outside of inner cushion layer 16, and oversheath 18 sets up in the outside of fire prevention flame retardant coating 17. Wherein, the inner cushion layer 16 is a halogen-free low-smoke polyolefin layer, the fireproof fire-resistant layer 17 is a ceramic fireproof fire-resistant composite tape layer, and the outer sheath 18 is a halogen-free low-smoke polyolefin layer.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

In the description of the present specification, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of describing the technical solutions of the present patent and for simplification of the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present patent application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this patent application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this specification, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present specification can be understood by those of ordinary skill in the art as appropriate.

In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described, it is to be understood that they have been presented by way of example only, and not limitation, and that changes, modifications, substitutions and alterations may be made thereto by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A ceramifiable fire-resistant cable comprises a cable body, wherein the cable body comprises a cable core and a protective sleeve arranged on the outer side of the cable core, and is characterized in that the cable core comprises a first cable core, a second cable core and a third cable core, a separation sheet is arranged in the protective sleeve, the separation sheet comprises a first separation sheet, a second separation sheet and a third separation sheet, the first cable core is positioned between the first separation sheet and the second separation sheet, the second cable core is positioned between the second separation sheet and the third separation sheet, and the third cable core is positioned between the third separation sheet and the first separation sheet;

the first cable core is formed by stranding a plurality of insulated wire cores and comprises a first insulated wire core, a second insulated wire core, a third insulated wire core, a fourth insulated wire core, a fifth insulated wire core, a sixth insulated wire core and a seventh insulated wire core;

the second cable core comprises a first round cable core and a second round cable core which are arranged in parallel, a first insulating layer is coated on the outer sides of the first round cable core and the second round cable core, and a first fire-resistant layer is coated on the outer side of the first insulating layer;

the third cable core comprises four bundles of annealing copper conductors arranged side by side in pairs, a second insulating layer is wrapped on the outer periphery of each bundle of annealing copper conductors, a second fire-resistant layer is wrapped on the outer sides of the four bundles of annealing copper conductors, and a third insulating layer is wrapped on the outer side of the second fire-resistant layer.

2. The ceramifiable fire-resistant cable as recited in claim 1, wherein the protective jacket comprises an inner bedding layer disposed on an outer side of the cable core, a fire-resistant layer disposed on an outer side of the inner bedding layer, and an outer jacket disposed on an outer side of the fire-resistant layer.