CN209843286U

CN209843286U - Flexible wrinkle copper sheath fire-resistant power cable

Info

Publication number: CN209843286U
Application number: CN201920484062.2U
Authority: CN
Inventors: 梁钰; 梁福秋; 计燕萍; 唐玉云; 杨正举
Original assignee: Anhui Tiankang Group Co Ltd
Current assignee: Anhui Tiankang Group Co Ltd
Priority date: 2019-04-11
Filing date: 2019-04-11
Publication date: 2019-12-24
Anticipated expiration: 2029-04-11

Abstract

The utility model discloses a flexible wrinkle copper sheath fire-resistant power cable, which comprises a cable core, a fire-resistant filler, a fire-resistant isolation layer and a wrinkle copper sheath; the fire-resistant isolating layer is lapped outside the cable core in an overlapping manner; the corrugated copper sheath is coated outside the fire-resistant isolating layer; the cable core comprises a plurality of electrified leads, and each electrified lead comprises a conductor and a fire-resistant insulating layer coated outside the conductor; wherein the flame-retardant filler is filled in the gaps of the cable core; a plurality of elastic insulating strips are embedded in the flame-retardant filler, and the strength and the bending degree of the cable are ensured through the elastic insulating strips in the flame-retardant filler. The utility model discloses an above-mentioned optimal design's fire-resistant power cable of flexible wrinkle copper sheath protects inside sinle silk ability continuation transmission electric energy when the conflagration takes place, guarantees that the cable has good high temperature resistant, fire-retardant and fire resistance, bending property, tensile strength ability.

Description

Flexible wrinkle copper sheath fire-resistant power cable

Technical Field

The utility model relates to a fireproof cable technical field especially relates to a fire-resistant power cable of flexible wrinkle copper sheath.

Background

The fire-retardant and fire-resistant cable is comprehensively required for buildings at the current crowded places, and the problems of insufficient fire resistance, poor fire resistance, difficulty in laying mineral insulated cables and poor bending performance of common fire-resistant cables are solved; therefore, the development of a flexible corrugated copper sheath fire-resistant power cable with excellent fire resistance and fire resistance is urgently needed.

SUMMERY OF THE UTILITY MODEL

For the technical problem who exists among the solution background art, the utility model provides a fire-resistant power cable of flexible wrinkle copper sheath.

The utility model provides a flexible wrinkle copper sheath fire-resistant power cable, which comprises a cable core, a fire-resistant filler, a fire-resistant isolation layer and a wrinkle copper sheath; the fire-resistant isolating layer is lapped outside the cable core in an overlapping manner; the corrugated copper sheath is coated outside the fire-resistant isolating layer; the cable core comprises a plurality of electrified leads, and each electrified lead comprises a conductor and a fire-resistant insulating layer coated outside the conductor; wherein the flame-retardant filler is filled in the gaps of the cable core; a plurality of elastic insulating strips are embedded in the flame-retardant filler, and the strength and the bending degree of the cable are ensured through the elastic insulating strips in the flame-retardant filler.

Preferably, the conductor is twisted and pressed into a round conductor or a fan-shaped conductor by adopting a TR type soft copper wire.

Preferably, the fire-resistant insulating layer and the fire-resistant isolating layer are both made of inorganic fire-resistant materials and used for isolating flame and high temperature.

Preferably, the wrinkle copper sheath is longitudinally wrapped with wrinkles by a copper strip, and the connecting seams of the copper strip are closed into a copper tube by laser welding, so that the bending property and the tensile property of the copper tube are improved.

Preferably, the fire-resistant isolation layer is wrapped on the cable core in an overlapping mode by adopting inorganic fire-resistant materials.

Preferably, the flame-retardant filling is filled at the gap of the cable core by using a flame-retardant material.

Preferably, the conductor is formed by twisting a plurality of strands of copper wires, and the strands of copper wires are directly combined in a regular twisting manner; the flexibility of the cable is guaranteed, the cable is also the most stable layout mode, the combination layout between the cable and the cable is difficult to change by external force, and the conductor is small in gap and compact in size due to the compression after twisting.

The utility model discloses an above-mentioned optimal design's fire-resistant power cable of flexible wrinkle copper sheath adopts inorganic mineral insulation flame retardant coating through the setting, play keep apart outside flame and temperature and use on the conductor, prevent the overheated fusing of conductor, protect inside sinle silk and can continue transmission electric energy when the conflagration takes place, guarantee that the cable has good high temperature resistant, fire-retardant and fire resistance, bending property, tensile strength.

Drawings

FIG. 1 is a schematic structural diagram of the present invention

FIG. 2 is a schematic structural view of a lead wire according to the present invention;

wherein: 1-fire-resistant isolation layer, 2-corrugated copper sheath, 3-electrified lead, 31-conductor, 32-fire-resistant insulation layer and 5-elastic insulation band.

Detailed Description

As shown in fig. 1-2, the flexible corrugated copper sheath fire-resistant power cable of the embodiment includes a cable core, a fire-resistant filler 4, a fire-resistant isolation layer 1 and a corrugated copper sheath 2; the fire-resistant isolating layer 1 is lapped and wrapped outside the cable core in an overlapping mode; the corrugated copper sheath 2 is coated outside the fireproof isolation layer 1; the cable core comprises a plurality of electrified leads 3, and each electrified lead 3 comprises a conductor 31 and a fire-resistant insulating layer 32 coated outside the conductor 31; wherein the flame-retardant filler 4 is filled in the gap of the cable core; wherein a plurality of elastic insulating tapes 5 are embedded in the flame-retardant filler 4; ensuring the rounding of the cable and enhancing the flame retardant and fire resistant performance.

In a specific embodiment, the conductor 31 is formed by twisting and pressing a TR-type soft copper wire into a round conductor.

The fire-resistant insulating layer 32 and the fire-resistant isolating layer 1 are both made of inorganic fire-resistant materials; when guaranteeing cable electrical property, the protection copper conductor can not cause the cable outage because of high temperature fusing in certain time under the condition of burning.

The corrugated copper sheath 2 is longitudinally wrapped with corrugated copper strips, and the connecting seams of the copper strips are closed into copper tubes by laser welding.

The beneficial effect of this embodiment is: when a fire disaster happens, the inner wire core is protected to continuously transmit electric energy, and the cable is ensured to have good high temperature resistance, flame retardance, fire resistance, bending property and tensile property.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A flexible wrinkle copper sheath fire-resistant power cable is characterized by comprising a cable core, a fire-resistant filler (4), a fire-resistant isolation layer (1) and a wrinkle copper sheath (2); the fire-resistant isolation layer (1) is lapped outside the cable core in an overlapping manner; the corrugated copper sheath (2) is coated outside the fireproof isolation layer (1); the cable core comprises a plurality of electrified leads (3), and each electrified lead (3) comprises a conductor (31) and a fire-resistant insulating layer (32) coated outside the conductor (31); wherein the flame-retardant filler (4) is filled in the gaps of the cable core; wherein a plurality of elastic insulating tapes (5) are embedded in the flame-retardant filler (4).

2. The flexible corrugated copper sheathed fire resistant power cable according to claim 1, wherein: the conductor (31) is twisted and pressed into a round conductor or a fan-shaped conductor by adopting a TR type soft copper wire.

3. The flexible corrugated copper sheathed fire resistant power cable according to claim 1, wherein: the fire-resistant insulating layer (32) and the fire-resistant isolating layer (1) are both made of inorganic fire-resistant materials.

4. The flexible corrugated copper sheathed fire resistant power cable according to claim 1, wherein: the wrinkle copper sheath (2) is longitudinally wrapped with wrinkles by a copper strip, and a copper tube is formed by closing a copper strip connecting seam by laser welding.

5. The flexible corrugated copper sheathed fire resistant power cable according to claim 1, wherein: the conductor (31) is formed by twisting a plurality of strands of copper wires, and the plurality of strands of copper wires are directly combined in a regular twisting mode.