CN210667845U

CN210667845U - Flexible high-temperature-resistant wire cable

Info

Publication number: CN210667845U
Application number: CN201922079822.4U
Authority: CN
Inventors: 丁晓娇
Original assignee: Yumao Electric Power Shenzhen Co Ltd
Current assignee: Yumao Electric Power Shenzhen Co Ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-06-02
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses a flexible high temperature resistant wire and cable, including cable main part, copper conductor, PETP layer, polytetrafluoroethylene fiber layer, polyimide fiber layer, fire resistant mica tape, semiconduction water blocking layer, anti-corrosion coating and copper core, cable main part inboard is equipped with flexible oversheath, the inboard parcel of flexible oversheath has PETP layer, the inboard parcel of PETP layer has polytetrafluoroethylene fiber layer, the inboard parcel of polytetrafluoroethylene fiber layer has polyimide fiber layer, the inboard parcel of polyimide fiber layer has fire resistant mica tape. The cable is protected from being affected by temperature for a certain time through the fire-resistant mica tape, the arranged polytetrafluoroethylene fiber layer and the arranged polyimide fiber layer can be safely used at 250-500 ℃, the fire resistance of the cable is further enhanced, the PETP layer and the flexible sheath are arranged to enable the cable to have certain flexibility, the flexibility and the flame retardant property of the cable are improved, and meanwhile the working temperature of the cable is improved.

Description

Flexible high-temperature-resistant wire cable

Technical Field

The utility model relates to the technical field of cables, particularly, relate to a flexible high temperature resistant wire and cable.

Background

In high-rise and super high-rise buildings, large entertainment places, large industrial and mining places, enterprises and underground engineering, cables are often densely laid, and once a fire disaster happens, the fire can be spread to other departments and floors along the cables. According to the statistics of fire departments, in urban fires, more than 2/3 of the urban fires are caused by the spread of cable combustion caused by the failure of electrical equipment or overload of a cable, and in many past fires, the people life danger and secondary hazard are mainly caused by acid gas and toxic gas released after the cable is combusted. The fire-proof technology of cables is attracting more and more attention and becomes an important development direction of the cable industry. Since the flame-retardant electric wire and cable can effectively prevent flame from spreading in case of fire and the fire-retardant electric wire and cable can also ensure continuous power supply in case of fire, they are more and more widely used in practical engineering. In the aspect of flame-retardant cables, the flame-retardant cables are subjected to halogen flame retardance, low-halogen low-smoke flame retardance, halogen-free low-smoke flame retardance and green environment-friendly flame retardance in sequence, the progress of the flame-retardant modes cannot be changed without updating the material of an insulating, filling and fire-isolating flame-retardant composite layer, and in the aspect of flame-retardant cables, two fire source isolating modes of mica tapes and mineral insulation are mainly adopted at present.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flexible high temperature resistant wire and cable to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a flexible high-temperature-resistant wire and cable comprises a cable main body, a copper conductor, a PETP layer, a polytetrafluoroethylene fiber layer, a polyimide fiber layer, a fire-resistant mica tape, a semi-conductive waterproof layer, an anti-corrosion layer and a copper core, wherein a flexible outer sheath is arranged on the inner side of the cable main body, the PETP layer is wrapped on the inner side of the flexible outer sheath, the polytetrafluoroethylene fiber layer is wrapped on the inner side of the PETP layer, the polyimide fiber layer is wrapped on the inner side of the polytetrafluoroethylene fiber layer, the fire-resistant mica tape is wrapped on the inner side of the polyimide fiber layer, the semi-conductive waterproof layer, a woven layer and a flexible inner sheath are wrapped on the inner side of the fire-resistant mica tape from outside to inside, the semi-conductive waterproof layer, the woven layer and the flexible inner sheath are arranged inside the cable main body, a filling material is arranged on the inner side of the flexible inner sheath, the copper conductor is wrapped on the inner side of the copper conductor, the anti-corrosion layer, the shielding layer and the insulating layer are arranged on the outer side of the copper core from the outside to the inside, and the anti-corrosion layer, the shielding layer and the insulating layer are located on the surface layer of the copper core.

Furthermore, the inside parcel of flexible inner sheath has the isolation layer, the thickness of isolation layer is 0.1 mm.

Further, the main material of the PETP layer is polyethylene terephthalate, and the thickness of the PETP layer is 0.2 mm.

Furthermore, the main material of the copper conductor is copper, and a protective layer is arranged on the surface layer of the copper conductor.

Furthermore, the inner side of the filling material is provided with a tearing rope, and the main material of the filling material is rubber.

Further, the thickness of the flexible outer sheath is 0.2mm, the thickness of the flexible inner sheath is 0.2mm, and the thicknesses of the flexible outer sheath and the flexible inner sheath are the same.

Further, the thickness of the fire-resistant mica tape is 0.2mm, and the thickness of the fire-resistant mica tape is the sum of the thicknesses of the flexible outer sheath and the flexible inner sheath.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model relates to a flexible high temperature resistant wire and cable, through the influence that fire-resistant mica tape protection cable certain time does not receive the temperature, the polytetrafluoroethylene fibrous layer and the polyimide fibrous layer of setting can be used safely between 250 ~ 500 ℃, further strengthens the fire behavior of cable, has set up PETP layer and flexible sheath and has made the cable have certain flexibility, has improved the flexibility and the flame retardant property of cable, has improved the operating temperature of cable simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a flexible high-temperature-resistant electric wire according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the inside of a flexible high temperature resistant electric wire cable according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a copper conductor of a flexible high-temperature-resistant wire cable according to an embodiment of the present invention.

Reference numerals:

1. a cable body; 2. a flexible outer sheath; 3. a copper conductor; 4. a PETP layer; 5. a polytetrafluoroethylene fiber layer; 6. a polyimide fiber layer; 7. fire-resistant mica tapes; 8. a semiconductive buffer water-resistant layer; 9. weaving layer; 10. a flexible inner sheath; 11. an isolation layer; 12. a filler material; 13. tearing the rope; 14. a protective layer; 15. an anti-corrosion layer; 16. a shielding layer; 17. a copper core; 18. an insulating layer.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

referring to fig. 1-3, a flexible high temperature resistant electric wire according to an embodiment of the present invention includes a cable main body 1, a copper conductor 3, a PETP layer 4, a polytetrafluoroethylene fiber layer 5, a polyimide fiber layer 6, a fire-resistant mica tape 7, a semi-conductive water-resistant layer 8, an anti-corrosion layer 15 and a copper core 17, wherein the cable main body 1 is provided with a flexible outer sheath 2 at an inner side thereof, the PETP layer 4 is wrapped at an inner side of the flexible outer sheath 2, the polytetrafluoroethylene fiber layer 5 is wrapped at an inner side of the PETP layer 4, the polyimide fiber layer 6 is wrapped at an inner side of the polytetrafluoroethylene fiber layer 5, the fire-resistant mica tape 7 is wrapped at an inner side of the polyimide fiber layer 6, the semi-conductive water-resistant layer 8, the braided layer 9 and the flexible inner sheath 10 are wrapped at an inner side of the fire-resistant mica tape 7 from outside to inside, the semi-conductive water-resistant layer 8, the braided layer 9 and the, the inner side of the flexible inner sheath 10 is provided with a filling material 12, the inner side of the filling material 12 is wrapped with the copper conductor 3, the inner side of the copper conductor 3 is wrapped with the copper core 17, the outer side of the copper core 17 is provided with the anti-corrosion layer 15, the shielding layer 16 and the insulating layer 18 from the outside to the inside, and the anti-corrosion layer 15, the shielding layer 16 and the insulating layer 18 are located on the surface layer of the copper core 17.

By the above scheme of the utility model, the inner side of the flexible inner sheath 10 is wrapped with the isolation layer 11, the thickness of the isolation layer 11 is 0.1mm, the main material of the PETP layer 4 is polyterephthalic acid, the PETP layer 4 has the function of enabling the cable to have flexibility, the thickness of the PETP layer 4 is 0.2mm, the main material of the copper conductor 3 is copper, the surface layer of the copper conductor 3 is provided with a protective layer 14, the inner side of the filling material 12 is provided with a tearing rope 13, the filling material 12 is mainly made of rubber, the thickness of the flexible outer sheath 2 is 0.2mm, the thickness of the flexible inner sheath 10 is 0.2mm, the thickness of the flexible outer sheath 2 is the same as that of the flexible inner sheath 10, the thickness of the fire-resistant mica tape 7 is 0.2mm, the fire-resistant mica tape 7 mainly has the functions of insulation and fire prevention, the thickness of the fire-resistant mica tape 7 is the sum of the thicknesses of the flexible outer sheath 2 and the flexible inner sheath 10.

When specifically using, the utility model relates to a flexible high temperature resistant wire and cable protects the influence that the cable did not receive the temperature for a certain time through fire-resistant mica tape 7, and polytetrafluoroethylene fibrous layer 5 and the polyimide fibrous layer 6 that set up can be between 250 ~ 500 ℃ safe handling, further strengthens the fire behavior of cable, has set up PETP layer 4 and flexible sheath and has made the cable have certain flexibility, has improved the flexibility and the flame retardant property of cable, has improved the operating temperature of cable simultaneously.

In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between 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.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a flexible high temperature resistant wire and cable, its characterized in that includes cable main part (1), copper conductor (3), PETP layer (4), polytetrafluoroethylene fiber layer (5), polyimide fiber layer (6), fire resistant mica tape (7), semi-conductive water blocking layer (8), anti-corrosion coating (15) and copper core (17), cable main part (1) inboard is equipped with flexible oversheath (2), inboard parcel of flexible oversheath (2) has PETP layer (4), inboard parcel of PETP layer (4) has polytetrafluoroethylene fiber layer (5), inboard parcel of polytetrafluoroethylene fiber layer (5) has polyimide fiber layer (6), inboard parcel of polyimide fiber layer (6) has fire resistant mica tape (7), inboard parcel from outside-in one side of fire resistant mica tape (7) has semi-conductive water blocking layer (8), Weaving layer (9) and flexible inner sheath (10), semiconduction water-blocking layer (8), weaving layer (9) and flexible inner sheath (10) are inside cable main part (1), flexible inner sheath (10) inboard is equipped with filler material (12), the inboard parcel of filler material (12) has copper conductor (3), the inboard parcel of copper conductor (3) has copper core (17), the copper core (17) outside is equipped with from outside-in one side anti-corrosion coating (15), shielding layer (16) and insulating layer (18), anti-corrosion coating (15), shielding layer (16) and insulating layer (18) are in copper core (17) top layer.

2. The flexible high-temperature-resistant electric wire cable according to claim 1, wherein the flexible inner sheath (10) is wrapped with an insulating layer (11) inside, and the thickness of the insulating layer (11) is 0.1 mm.

3. The flexible high-temperature-resistant wire and cable as claimed in claim 1, wherein the main material of the PETP layer (4) is polyethylene terephthalate, and the thickness of the PETP layer (4) is 0.2 mm.

4. The flexible high-temperature-resistant electric wire and cable as claimed in claim 1, wherein the main material of the copper conductor (3) is "copper", and a protective layer (14) is arranged on the surface of the copper conductor (3).

5. The flexible high-temperature-resistant electric wire and cable as claimed in claim 1, wherein the inner side of the filler (12) is provided with a tearing rope (13), and the filler (12) is mainly made of rubber.

6. A flexible high temperature resistant electric wire cable according to claim 1, characterized in that the thickness of the flexible outer sheath (2) is 0.2mm, the thickness of the flexible inner sheath (10) is 0.2mm, and the thickness of the flexible outer sheath (2) and the flexible inner sheath (10) is the same.

7. The flexible high temperature resistant wire cable according to claim 1, wherein the thickness of the fire resistant mica tape (7) is 0.2mm, and the thickness of the fire resistant mica tape (7) is the sum of the thicknesses of the flexible outer sheath (2) and the flexible inner sheath (10).