CN212907201U

CN212907201U - Steel wire armored flexible fireproof cable

Info

Publication number: CN212907201U
Application number: CN202022136997.7U
Authority: CN
Inventors: 李杰尉; 王建民
Original assignee: Xinjiang Huyang Cable Manufacturing Co ltd
Current assignee: Xinjiang Huyang Cable Manufacturing Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-04-06
Anticipated expiration: 2030-09-25

Abstract

The utility model discloses a steel wire armored flexible fireproof cable, which comprises a core body, wherein the core body is provided with a copper core conductor, a mineral substance insulating layer is arranged outside the copper core conductor, a mineral substance wrapping layer is arranged outside the core body, mineral substance fillers are filled in the mineral substance wrapping layer, and a drawing copper/aluminum sheath, a flame-retardant isolation sleeve, an armored steel wire and a halogen-free flame-retardant sheath are sequentially arranged outside the mineral substance wrapping layer; the utility model has the advantages that: not only have good fire behavior, there is not steamed low cigarette characteristic, can be better be applicable to places such as vertical laying such as high drop moreover, prevent because the dead weight of cable, or pull when laying, cause the cable to damage.

Description

Steel wire armored flexible fireproof cable

Technical Field

The utility model relates to a fireproof cable, specifically speaking are flexible fireproof cable of steel wire armor belongs to the fireproof cable field.

Background

The fireproof cable is high in fireproof requirement in some special occasions, such as places with large fall, high fall or vertically laid places, vertical shafts, coal mines, high-rise buildings and the like, and meanwhile, in places with high requirement on the longitudinal tensile force of the cable, the traditional fireproof cable is difficult to meet the requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to design a flexible fireproof cable of steel wire armor, not only have good fire behavior, do not have steamed low cigarette characteristic, can be better be applicable to places such as vertical laying such as high drop moreover, prevent because the dead weight of cable, or pull the pulling force when laying, cause the cable body to damage.

The technical scheme of the utility model is that:

flexible fireproof cable of steel wire armor, including the core, the core is equipped with the copper core conductor, can be three-core, four-core, five-core structure, the copper core conductor is equipped with the mineral substance insulating layer outward, the conductor sinle silk is equipped with the mineral substance outward around the covering, the mineral substance is packed around the covering intussuseption and is had the mineral substance filler, the mineral substance is equipped with in proper order around the covering and draws copper aluminium sheath, fire-retardant separation sleeve, armor steel wire, through the armor enhancement layer, adopts the mode that the armor steel wire was strengthened to make its cable possess good vertical bearing capacity, has better vertical tensile effect.

The longitudinal tension of the cable is reinforced by adding the armored steel wire in the fireproof cable sheath structure, so that the cable can be laid and operated in a large-drop use occasion.

Not only have good fire behavior, there is not steamed low cigarette characteristic, can be better moreover be applicable to places such as vertical laying such as high drop: for example: the cable is prevented from being damaged due to dead weight of the cable or tension during laying in places such as a mine, a vertical shaft and a cable well of a high-rise building.

The conductor is a copper core conductor, the insulation is mineral composite insulation, the fireproof sheathing layer is a copper/aluminum drawing type metal sheathing, a flame-retardant isolating sleeve is extruded outside the metal sheathing, armored low-carbon steel wires are installed outside the isolating sleeve, and a high-flame-retardant halogen-free low-smoke flame-retardant polyolefin sheathing is arranged outside the armored steel wire layer.

The utility model has the advantages that: the fireproof performance is the same, the fireproof grade not only meets the requirements of national standard GB/T19216.21-2003 for 1000 ℃ and 180min, but also meets C, W, Z three tests (fireproof C grade of 950 ℃ for 180min, spraying W grade of 650 ℃ for 15min, and impacting Z grade of 950 ℃ for 15min) specified in British BS6387: 2013; meanwhile, the high-tension vertical cable has better longitudinal tension, can be drawn for a long distance and laid vertically with a high drop, and avoids the damage to the internal insulation caused by the traction force on the product.

The present invention will be further explained with reference to the drawings and examples.

Drawings

Fig. 1 is the utility model discloses steel wire armouring flexible fireproof cable's schematic structure view.

Detailed Description

The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is not intended to limit the invention.

Example 1

As shown in fig. 1, a steel wire armored flexible fireproof cable comprises a core body, wherein the core body is provided with a copper core conductor 1 which can be of a three-core, four-core or five-core structure, a mineral insulating layer 2 is arranged outside the copper core conductor 1, a mineral wrapping layer 4 is arranged outside the conductor core, a mineral filler 3 (flame-retardant inorganic paper rope or glass fiber rope is adopted for filling) is filled in the mineral wrapping layer 4, a drawing copper/aluminum sheath 5, a flame-retardant isolation sleeve 6 (low-smoke halogen-free flame-retardant polyolefin cable sheath material is adopted for filling) and is sequentially arranged outside the mineral wrapping layer 4, an armored steel wire 7 passes through an armored reinforcing layer, the number of armored steel wires is selected according to the outer diameter and is tightly stranded on the isolation sheath layer through a certain stranding pitch and can be carried out on a steel wire armoring machine or a disc cabling machine, so that the cable has good longitudinal bearing performance in a reinforcing mode, has better longitudinal tensile action 8, and a halogen-free flame-retardant sheath (which adopts low-smoke halogen-free flame-retardant polyolefin sheath material and can use orange or black as required).

The conductor is a copper core conductor, the insulation is mineral composite insulation (the insulating material is ceramic silica gel tape and fire-resistant mica tape), the fireproof sheathing layer is a copper (aluminum) drawing type metal sheathing (suitable for argon arc welding or metal extrusion), a flame-retardant isolating sleeve is extruded outside the metal sheathing, an armored low-carbon steel wire is additionally arranged outside the isolating sleeve, and a high-flame-retardant halogen-free low-smoke flame-retardant polyolefin sheathing is arranged outside the armored steel wire layer.

Claims

1. Flexible fireproof cable of steel wire armor, its characterized in that: including the core, the core is equipped with the copper core conductor, the copper core conductor is equipped with the mineral substance insulating layer outward, the core is equipped with the mineral substance outward around the covering, the mineral substance is filled with the mineral substance filler around the covering in situ, the mineral substance is equipped with in proper order outside the covering and draws copper aluminium sheath, fire-retardant spacer sleeve, armor steel wire, the fire-retardant sheath of steamed low cigarette of nothing.

2. The steel-wire armored flexible fireproof cable according to claim 1, wherein: the core body is of a three-core, four-core and five-core structure.