CN216980134U

CN216980134U - Waterproof metal copper sleeve flexible mineral insulation fireproof cable

Info

Publication number: CN216980134U
Application number: CN202122067227.6U
Authority: CN
Inventors: 石彦良; 孙国刚
Original assignee: Liaoning Jiayi Cable Co ltd
Current assignee: Liaoning Jiayi Cable Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-07-15
Anticipated expiration: 2031-08-30

Abstract

The utility model discloses a waterproof metal copper sleeve flexible mineral insulation fireproof cable which comprises a copper conductive wire core, wherein a halogen-free flame-retardant wrapping tape layer is arranged on the surface of the copper conductive wire core, a metal copper sleeve protective layer is arranged on the surface of the halogen-free flame-retardant wrapping tape layer, a waterproof isolation layer is arranged on the surface of the metal copper sleeve protective layer, and a halogen-free low-smoke flame-retardant outer sheath is arranged on the surface of the waterproof isolation layer. The halogen-free flame-retardant wrapping tape layer is formed by calcining a synthetic mica tape, the volume resistivity of the mica tape is small in a normal state, the mica tape is manufactured by adopting a multi-layer overlapping concentric wrapping mode, the metal copper sleeve protective layer is made of a high-conductivity annealed copper tape, and a longitudinal wrapping argon arc welding continuous welding embossing process is used, so that the protective effect can be achieved, the flexibility of a cable during installation can be guaranteed, the waterproof isolation layer is formed by one-time extrusion wrapping of wrapped water-blocking tape and crosslinked polyethylene with good waterproof performance, and the problem that the existing insulating fireproof cable is affected with damp when in use is solved.

Description

Waterproof metal copper sleeve flexible mineral insulation fireproof cable

Technical Field

The utility model relates to the technical field of insulating fireproof cables, in particular to a waterproof metal copper sleeve flexible mineral insulating fireproof cable.

Background

The copper sheath embossing inorganic insulated cable is a novel fireproof cable which is improved on the basis of the defects of mineral insulated cables, can overcome the defect of limited production length of the mineral insulated cables, avoids the problem of intermediate joints appearing in installation and laying, increases a waterproof layer, has the advantages that the insulating layer is not easy to damp, the installation and laying are convenient, along with the continuous popularization of the product, the excellent performance of the cable is more and more accepted by customers, and the cable is widely applied to basic industry and civil construction.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a waterproof metal copper sleeve flexible mineral insulation fireproof cable which has the advantages that an insulating layer is not easy to damp and is convenient to install and lay, and the problem that the existing insulation fireproof cable is damp when in use is solved.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a flexible mineral insulation fireproof cable of waterproof type metal copper sheathing, includes the copper conductor core, the surface of copper conductor core is provided with the fire-retardant band layer of halogen-free, the surface on fire-retardant band layer of halogen-free is provided with metal copper sheathing inoxidizing coating, the surface of metal copper sheathing inoxidizing coating is provided with waterproof isolation layer, waterproof isolation layer's surface is provided with the fire-retardant oversheath of halogen-free low cigarette.

Preferably, a mineral insulating layer is arranged between the copper conductive wire core and the halogen-free flame-retardant wrapping tape layer.

Preferably, a halogen-free flame-retardant filling rope is arranged between the mineral insulating layer and the halogen-free flame-retardant wrapping tape layer.

Preferably, the copper conductive wire core is circular and is formed by twisting a plurality of copper conductive wire cores together.

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

1. the halogen-free flame-retardant wrapping tape layer adopts a calcined synthetic mica tape, the volume resistivity of the mica tape is small under a normal state, the mica tape is manufactured by adopting a multi-layer overlapping concentric wrapping mode, the protective layer of the metal copper sleeve adopts a high-conductivity annealed copper tape, and a longitudinal wrapping argon arc welding continuous welding embossing process is used, so that the protective effect can be achieved, the flexibility of the cable during installation can be ensured, the waterproof isolating layer is formed by one-time extrusion wrapping of wrapped water-blocking tape and cross-linked polyethylene with better waterproof performance, the molecular structure of the polyethylene is changed into a three-dimensional net structure from a linear structure after cross-linking, the waterproof performance of the cable is fully ensured, the halogen-free low-smoke flame-retardant outer sheath is extruded and formed by adopting an environment-friendly halogen-free low-smoke flame-retardant material, and the metal sheath can be protected to adapt to various corrosive places, meanwhile, the insulating fireproof cable has no influence on resources such as environment, underground water and the like, and solves the problem that the existing insulating fireproof cable is affected with damp when in use.

2. According to the utility model, the mineral insulating layer is arranged for protecting the copper conductive wire core, so that the copper conductive wire core is prevented from being rubbed with an external protective layer when being wound, and the copper conductive wire core is damaged, the halogen-free flame-retardant filling rope is arranged for increasing the stability of the copper conductive wire core, the copper conductive wire core is twisted together to increase the stability of the copper conductive wire core when being wound, and the mutual friction between the copper conductive wire cores is avoided, so that the copper conductive wire core is prevented from being abraded.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1. a copper conductive core; 2. a mineral insulation layer; 3. a halogen-free flame-retardant filler rope; 4. a halogen-free flame retardant belting layer; 5. a metal copper sleeve protective layer; 6. a waterproof isolation layer; 7. there is not steamed low fire-retardant oversheath of cigarette.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description herein, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the patent. In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1, a waterproof metal copper sheathing flexible mineral insulation fireproof cable comprises a copper conductive core 1, a halogen-free flame retardant wrapping tape layer 4 is arranged on the surface of the copper conductive core 1, a metal copper sheathing protective layer 5 is arranged on the surface of the halogen-free flame retardant wrapping tape layer 4, a waterproof isolation layer 6 is arranged on the surface of the metal copper sheathing protective layer 5, a halogen-free low-smoke flame retardant outer sheath 7 is arranged on the surface of the waterproof isolation layer 6, the halogen-free flame retardant wrapping tape layer 4 is calcined to form a mica tape, the mica tape has small volume resistivity in a normal state and is manufactured by adopting a multi-layer overlapping concentric wrapping mode, the metal copper sheathing protective layer 5 is made of a high-conductivity annealed copper strip, a longitudinal argon arc welding continuous welding embossing process is used, the protective effect can be achieved, the flexibility of the cable during installation can be guaranteed, the waterproof isolation layer 6 is formed by one-step extrusion wrapping of wrapped waterproof tape and crosslinked polyethylene with good waterproof performance, the polyethylene is changed into a three-dimensional net structure from a linear structure after being crosslinked, the waterproof performance of the cable is fully ensured, the halogen-free low-smoke flame-retardant outer sheath 7 is formed by extruding and wrapping environment-friendly halogen-free low-smoke flame-retardant materials, the metal sheath can be protected to adapt to various corrosive places, and meanwhile, the environment and underground water and other resources are not influenced, a mineral insulating layer 2 is arranged between the copper conductive wire core 1 and the halogen-free flame-retardant wrapping tape layer 4, the mineral insulating layer 2 is arranged for protecting the copper conductive wire core 1, the friction between the copper conductive wire core 1 and an external protective layer when being rolled is avoided, so that the copper conductive wire core 1 is damaged, a halogen-free flame-retardant filling rope 3 is arranged between the mineral insulating layer 2 and the halogen-free flame-retardant wrapping tape layer 4, the halogen-free flame-retardant filling rope 3 is arranged for increasing the stability of the copper conductive wire core 1, the copper conductive wire core 1 is round and is twisted together by a plurality of wires, increase the stability of copper conductor core 1 when the rolling is used through twisting together copper conductor core 1, avoid rubbing each other between the copper conductor core 1 to lead to the wearing and tearing of copper conductor core 1.

During the use, be used for protecting copper conductor core 1 through setting up mineral insulating layer 2, avoid copper conductor core 1 and outside protective layer friction when using the rolling, thereby lead to copper conductor core 1 to damage, be used for increasing copper conductor core 1's stability through setting up steamed fire-retardant packing rope 3 of nothing, through increasing copper conductor core 1's stability when the rolling is used with copper conductor core 1 transposition together, avoid the mutual friction between copper conductor core 1, thereby lead to copper conductor core 1 wearing and tearing.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a flexible mineral insulation fireproof cable of waterproof type metal copper sheathing, includes copper conductor core (1), its characterized in that: the surface of the copper conductive wire core (1) is provided with a halogen-free flame-retardant belting layer (4), the surface of the halogen-free flame-retardant belting layer (4) is provided with a metal copper sleeve protective layer (5), the surface of the metal copper sleeve protective layer (5) is provided with a waterproof isolation layer (6), and the surface of the waterproof isolation layer (6) is provided with a halogen-free low-smoke flame-retardant outer sheath (7).

2. The waterproof metal copper sheath flexible mineral insulated fireproof cable of claim 1, wherein: and a mineral insulating layer (2) is arranged between the copper conductive wire core (1) and the halogen-free flame-retardant wrapping tape layer (4).

3. The waterproof metal copper sheath flexible mineral insulation fireproof cable according to claim 2, wherein: and a halogen-free flame-retardant filling rope (3) is arranged between the mineral insulating layer (2) and the halogen-free flame-retardant wrapping tape layer (4).

4. The waterproof metal copper sheath flexible mineral insulated fireproof cable of claim 1, wherein: the copper conductive wire core (1) is circular and is twisted together by a plurality of wires.