CN214175761U - Fireproof power signal cable - Google Patents

Abstract

The utility model discloses a fire prevention power signal cable, including internal signal electric core (1), middle part power electricity core (2) and outside protective sheath (3), internal signal electricity core (1) is located cable central point and puts, including dispersion base (11) and many signal lines (12), has a plurality of segmentation regions on dispersion base (11), and the setting of many signal lines (12) interval has fire retardant (13) in the segmentation region that does not set up signal line (12); middle part power electricity core (2) are including power line (21) and power base (22), and power base (22) cladding is in the outside of inside signal electricity core (1), and many power lines (21) homodisperse are in power base (22), and many power lines (21) are contactless each other. The utility model discloses a fire prevention power signal cable has a great deal of advantages such as fire behavior is good, signal transmission is stable.

Description

Fireproof power signal cable

Technical Field

The utility model relates to a fire prevention power signal cable belongs to wire and cable technical field.

Background

Traditional power cable and signal cable often separately lay, divide twice construction, extravagant time limit for a project to, when using, power cable and signal cable walk the line path basically the same, and the two position is close or adjacent, and when the conflagration appeared, the adhesion appeared easily under long-term flame firing in adjacent cable, the phenomenon of mutual influence appears, leads to signal cable communication quality to descend and can't effectively communicate even.

For the reasons, it is necessary to research a cable which combines a power cable and a signal cable into a whole, has strong fire resistance and good anti-interference performance.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems, the utility model provides a fireproof power signal cable which is characterized by comprising an internal signal cell 1, a middle power cell 2 and an external protective sleeve 3,

the internal signal cell 1 is located at the center of the cable and comprises a dispersion base 11 and a plurality of signal lines 12, wherein the dispersion base 11 is provided with a partition board 111, a plurality of partition areas are formed on the dispersion base 11 through the partition board 111, the plurality of signal lines 12 are arranged in different partition areas at intervals, and a flame retardant 13 is arranged in the partition area where no signal line 12 is arranged;

the middle power cell 2 comprises power lines 21 and a power base 22, the power base 22 is coated on the outer side of the internal signal cell 1, the plurality of power lines 21 are uniformly dispersed in the power base 22, and the plurality of power lines 21 are not in contact with each other;

the outer protective sleeve 3 is coated outside the middle power cell 2.

Preferably, the dispersing base 11 is cylindrical, and the partition plates 111 are distributed at intervals on the outer side of the cylinder of the dispersing base 11.

Preferably, the partition 111 is a metal partition with a trapezoidal cross section.

According to the utility model discloses, signal line 12 includes signal line conductor, signal line insulating layer and signal line shielding layer from inside to outside.

In a preferred embodiment, a plurality of U-shaped notches are formed on the power base 22, and the power line 21 is arranged in the U-shaped notches

According to the utility model discloses, power line 21 includes power line conductor and power line insulating layer from inside to outside.

In a preferred embodiment, the power line 21 is located outside the area corresponding to the flame retardant agent 13.

Preferably, the outer protective sheath 3 comprises a reinforcement layer 31 and a wear layer 35.

The utility model discloses the beneficial effect who has includes:

(1) according to the fireproof power signal cable provided by the utility model, the power line and the signal line are combined in one cable, so that the engineering cost is saved;

(2) according to the fireproof power signal cable provided by the utility model, the signal wires are dispersed through the dispersing base, so that the interference between the signal wires under the high temperature condition is avoided;

(3) according to the fireproof power signal cable provided by the utility model, the fire retardant is placed in the dividing region by arranging the dividing region, so that the temperature near the power line and the signal line is reduced in case of fire;

(4) according to the utility model provides a fire prevention power signal cable through using ceramic rubber, has guaranteed the relatively fixed of power line position in the conflagration, avoids appearing the short circuit phenomenon.

Drawings

Fig. 1 shows a schematic view of a fire-proof power signal cable according to a preferred embodiment of the present invention;

fig. 2 shows a schematic structural view of a fire-proof power signal cable distribution base according to a preferred embodiment of the present invention.

The reference numbers illustrate:

1-internal signal cell;

2-middle power cell;

3-an outer protective sheath;

11-a dispersing base;

111-a separator;

12-a signal line;

13-a flame retardant;

21-a power line;

22-a power base;

31-a reinforcement layer;

32-an outer shield layer;

33-a waterproof layer;

34-a mica layer;

35-wear resistant layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. The features and advantages of the present invention will become more apparent from the description.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

According to the utility model provides a pair of fire prevention power signal cable, including inside signal electricity core 1, middle part power electricity core 2 and outside protective sheath 3, as shown in fig. 1.

The internal signal electric core 1 is located at the central position of the cable, and includes a dispersion base 11 and a plurality of signal lines 12, the dispersion base 11 has a partition 111 thereon, and the plurality of signal lines 12 are isolated from each other by the partition 111.

In the present invention, the signal line 12 includes a signal line conductor, a signal line insulating layer, and a signal line shielding layer from the inside to the outside.

In a preferred embodiment, the dispersing base 11 is cylindrical, and the partition plates 111 are spaced on the outer side of the column of the dispersing base 11 to form a plurality of divided regions.

In a preferred embodiment, the dispersing base 11 has a plurality of stages, and a wire rope is provided in the center of the dispersing base 11 to connect the plurality of stages of dispersing bases 11.

Preferably, the partition 111 is a metal partition with a trapezoid-like cross section, and also plays a role in shielding, so that the signal lines 12 are not affected by each other, and the partition 111 and the signal line shielding layer of the signal lines 12 form a double-layer shield, so as to ensure that the signal lines 12 can work normally at high temperature as much as possible. The dispersion base 11 is of an insulating material, such as ceramic fibre, rock wool or the like, so that the different partitions 111 do not touch, as shown in figure 2.

More preferably, the signal lines 12 are arranged at intervals in different partitioned areas, as shown in fig. 1, the arrangement is such that the different signal lines 12 are far away from each other, and when a fire occurs, the different signal lines 12 are ensured to be free from contact with each other even when a high temperature is continuously applied, thereby reducing mutual interference.

Further, between the signal line 12 and the spacer 111, there is a filler material to achieve fixation of the signal line 12.

More preferably, a flame retardant 13 is provided in a divided region where the signal line 12 is not provided, and the signal line 12 is protected by lowering the temperature of the air around the signal line 12 or by generating foam during combustion.

In the present invention, the type of the flame retardant 13 is not particularly limited, and may be any flame retardant.

The middle power cell 2 comprises a power line 21 and a power base 22.

The power base 22 is coated on the outer side of the internal signal electric core 1, a plurality of notches with U-shaped cross sections are formed in the power base 22, and the power line 21 is arranged in the U-shaped notches.

Further, the power lines 21 are uniformly dispersed in the power base 22, and the plurality of power lines 21 are not in contact with each other.

Further, the power line 21 includes a power line conductor and a power line insulating layer from inside to outside.

According to the present invention, the power base 22 is made of an insulating material, preferably ceramic silicone rubber.

The ceramic silicon rubber material is a novel high-molecular refractory material, is widely applied to the wire and cable industry, and can form a hard ceramic protective layer after being burnt by high-temperature flame, so that the power line 21 in the ceramic protective layer is protected, the position of the power line 21 is kept fixed, different power lines 21 are prevented from contacting with each other, and the power line can continuously work.

In a more preferred embodiment, the power line 21 is located outside the area corresponding to the flame retardant 13, so that the flame retardant 13 can reduce the heat near the power line 21, thereby prolonging the time when the power line 21 normally operates.

Preferably, the outer protective sheath 3 comprises a reinforcement layer 31 and a wear layer 35.

Furthermore, the reinforcing layer 31 covers the outer side of the power base 22, and elastic refractory materials such as polyethylene and butyronitrile are adopted to enhance the tensile resistance of the cable.

The wear-resistant layer 35 is used for mechanical and electrical protection of the cable in the construction process, protection against damage of plague, prevention of cable aging in advance caused by oil stain corrosion, and the like, and a person skilled in the art can select specific materials, processing modes, and the like according to actual experience.

In a preferred embodiment, the outer protective sheath 3 further comprises an outer shielding layer 32, a water-proof layer 33 and/or a mica layer 34.

The outer shielding layer 32 is formed by wrapping materials such as a copper strip, a copper wire and an aluminum-plastic composite core strip, shields electromagnetism generated by the power line 21, and has the effect of isolating flame.

Waterproof layer 33 is formed around the package for structures that can block water such as the area that blocks water the utility model discloses in do not do the special limitation.

The mica layer 34 is formed by wrapping a mica tape, and the mica tape has a high-temperature resistance characteristic, can isolate part of heat and reduce the temperature rise speed in the cable.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", and the like indicate the position or positional relationship based on the operation state of the present invention, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention has been described above in connection with preferred embodiments, which are merely exemplary and illustrative. On this basis, can be right the utility model discloses carry out multiple replacement and improvement, these all fall into the utility model discloses a protection scope.

Claims (8)

1. A fireproof power signal cable is characterized by comprising an internal signal electric core (1), a middle power electric core (2) and an external protective sleeve (3),

the internal signal cell (1) is located at the central position of the cable and comprises a dispersion base (11) and a plurality of signal wires (12), a partition board (111) is arranged on the dispersion base (11), a plurality of partition areas are formed on the dispersion base (11) through the partition board (111), the plurality of signal wires (12) are arranged in different partition areas at intervals, and a flame retardant (13) is arranged in the partition area where no signal wire (12) is arranged;

the middle power cell (2) comprises power lines (21) and a power base (22), the power base (22) is coated on the outer side of the internal signal cell (1), the power lines (21) are uniformly dispersed in the power base (22), and the power lines (21) are not in contact with each other;

the external protective sleeve (3) is coated outside the middle power cell (2).

2. The flameproof power-signal cable of claim 1,

the dispersing base (11) is cylindrical, and the partition plates (111) are distributed on the outer side face of the column body of the dispersing base (11) at intervals.

3. The flameproof power-signal cable of claim 1,

the partition plate (111) is a metal partition plate with a trapezoidal section.

4. The flameproof power-signal cable of claim 1,

the signal line (12) comprises a signal line conductor, a signal line insulating layer and a signal line shielding layer from inside to outside.

5. The fireproof power signal cable of claim 1, wherein a plurality of U-shaped cross-section notches are formed in the power base (22), and the power lines (21) are disposed in the U-shaped notches.

6. The flameproof power-signal cable of claim 1,

the power line (21) comprises a power line conductor and a power line insulating layer from inside to outside.

7. The flameproof power-signal cable of claim 1,

the power line (21) is positioned outside the corresponding area of the flame retardant (13).

8. The flameproof power-signal cable of claim 1,

the outer protective sheath (3) comprises a reinforcement layer (31) and a wear layer (35).

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