CN216980205U

CN216980205U - Flexible mineral insulation fireproof cable with metal copper sheath

Info

Publication number: CN216980205U
Application number: CN202122069591.6U
Authority: CN
Inventors: 孙国刚; 石彦良
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 flexible mineral insulation fireproof cable with a metal copper sheath, which comprises a copper conductive wire core, wherein a mineral insulating layer wraps the outside of the copper conductive wire core, a halogen-free flame-retardant filling rope wraps the outside of the mineral insulating layer, a halogen-free flame-retardant wrapping tape layer wraps the outside of the mineral insulating layer, a metal copper sheath protective layer wraps the outside of the halogen-free flame-retardant wrapping tape layer, and a halogen-free low-smoke flame-retardant outer sheath wraps the outside of the metal copper sheath protective layer. The utility model plays a role of transmitting electric energy through the copper conductive wire core, can be a round solid core, can also be a multi-core twisted together, and is generally an annealed copper conductor, the mineral insulating layer adopts a calcined synthetic mica tape and is manufactured by adopting a multi-layer overlapping concentric wrapping mode, the metal copper sleeve protective layer adopts a high-conductivity annealed copper tape, and the longitudinal argon arc welding continuous welding embossing process is used, so that the protection effect can be played, and the flexibility of the cable during installation can be ensured.

Description

Flexible mineral insulation fireproof cable with metal copper sheath

Technical Field

The utility model relates to the technical field of cables, in particular to a flexible mineral insulation fireproof cable with a metal copper sheath.

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 during installation and laying, has better and more accepted by customers along with continuous popularization of the product, is widely applied to basic industry and civil construction, but has poor insulating and fireproof performance and troublesome installation and laying, and has higher comprehensive cost than that of rigid mineral insulated cables under the same condition, so the existing cables are necessary to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a flexible mineral insulated fireproof cable with a metal copper sheath, which has the advantages of fireproof insulation and convenience in installation and laying, and solves the problems that the existing cable is poor in insulating fireproof performance, troublesome in installation and laying and higher in comprehensive cost than a rigid mineral insulated cable under the same condition.

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 metal copper sheath, includes the copper conductor core, the outside parcel of copper conductor core has the mineral insulation layer, the outside parcel of mineral insulation layer has the fire-retardant filling rope of halogen-free, the outside parcel of mineral insulation layer has the fire-retardant band layer of halogen-free, the outside parcel of fire-retardant band layer of halogen-free has the metal copper sheathing inoxidizing coating, the outside parcel of metal copper sheathing inoxidizing coating has the fire-retardant oversheath of halogen-free low cigarette.

Preferably, the copper conductive wire core is formed by multi-core stranding.

Preferably, the mineral insulating layer is made of calcined synthetic mica tapes, and the mica tapes are connected in a multi-layer overlapping and concentric wrapping manner.

Preferably, the metal copper sleeve protective layer is made of a high-conductivity annealed copper strip by a longitudinal argon arc welding continuous welding embossing process.

Preferably, the halogen-free low-smoke flame-retardant outer sheath is formed by extruding a halogen-free low-smoke flame-retardant material.

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

1. the utility model has the function of transmitting electric energy through the copper conductive wire core, can be a round solid core, can also be a multi-core twisted together, is generally an annealed copper conductor, the mineral insulating layer adopts a calcined synthetic mica tape, and is manufactured by adopting a multi-layer overlapping concentric wrapping mode, the metal copper sleeve protective layer adopts a high-conductivity annealed copper tape, and a longitudinal argon arc welding continuous welding embossing process is used, so that the protective effect can be realized, the flexibility of the cable during installation can be ensured, and the halogen-free low-smoke flame-retardant outer sheath used as the product protection is formed by extruding and wrapping an environment-friendly halogen-free low-smoke flame-retardant material, so that the metal sheath can adapt to various corrosive places and has no influence on the environment, underground water and other resources.

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 insulating 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. 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 one of ordinary skill in the art as appropriate.

Referring to fig. 1, a flexible mineral insulation fireproof cable with a metal copper sheath comprises a copper conductive core 1, the copper conductive core 1 is formed by multi-core twisting, a mineral insulation layer 2 is wrapped outside the copper conductive core 1, the mineral insulation layer 2 is made of calcined synthetic mica tapes, the mica tapes are connected in a multi-layer overlapping concentric wrapping mode, no matter the cable is a single-core cable or a multi-core cable, the length of the cable can meet the requirement of power supply length, each continuous length can reach more than 1000m, the fireproof performance is excellent, a halogen-free flame-retardant filling rope 3 is wrapped outside the mineral insulation layer 2, a halogen-free flame-retardant wrapping tape layer 4 is wrapped outside the mineral insulation layer 2, a metal copper sheath protective layer 5 is wrapped outside the halogen-free flame-retardant wrapping tape layer 4, the metal copper sheath protective layer 5 is made of a high-conductivity annealed copper strip, and is manufactured by a longitudinal argon arc welding continuous welding and rolling process, and is smoke-free and non-toxic during combustion, the cable is made of inorganic materials in insulation, no harmful gas is generated during combustion, no secondary pollution is generated, the cable is an environment-friendly green product, the overload capacity is large, the current-carrying capacity of the cable is large, the overload capacity is high, according to wiring requirements, the surface temperature of the cable is usually less than or equal to 70 ℃, if wiring cannot be touched and the cable is not contacted with combustible building materials, the temperature of a cable sheath can be increased to 105 ℃, the long-term working temperature of the fireproof cable can reach 250 ℃ during overload, the halogen-free low-smoke flame-retardant outer sheath 6 wraps the metal copper sheath protective layer 5, the low-smoke halogen-free flame-retardant outer sheath 6 is formed by extruding and wrapping halogen-free low-smoke flame-retardant materials, the organic mineral insulating fireproof cable sometimes needs to penetrate through a plastic pipe or an iron pipe, the plastic pipe is easy to age and become brittle, the iron pipe is easy to rust, the fireproof cable has no copper sheath which needs to penetrate through the pipe, the copper sheath has good corrosion resistance and magnetic interference, when the fireproof cable and the information and control cables are laid in the same vertical shaft, under the shielding of a copper sheath, the fireproof cable cannot interfere with the information transmitted by the signal and control cables, the safety is good, the fireproof cable can normally supply power in flame, the fire loss is reduced, the personal safety is very reliable, the copper sheath is an excellent conductor, is a best grounding PE (polyethylene) line and can continuously reach the full length of the cable, the grounding protection sensitivity and reliability are greatly improved, the service life is long, the inorganic insulating material is resistant to temperature and high and is not easy to age, the service life is many times longer than that of the organic insulating cable, the service life can reach more than 100 years in a normal working state, and the fireproof cable and the information and control cables can be coiled and paid off as a common cable; the cable basically does not absorb moisture, the terminal installation is simple, the cable is similar to a common cable, the cable plays a role in transmitting electric energy through the copper conductive wire core 1, the cable can be a round solid core, also can be a multi-core stranded together, generally, an annealed copper conductor, the mineral insulating layer 2 adopts a calcined synthetic mica tape, the cable is manufactured in a multi-layer overlapping concentric wrapping mode, the metal copper sleeve protective layer 5 adopts a high-conductivity annealed copper strip, a longitudinal argon arc welding continuous welding embossing process is used, the cable can play a role in protection, the flexibility during cable installation can be ensured, the halogen-free low-smoke flame-retardant outer sheath 6 serving as product protection is formed by extruding and wrapping an environment-friendly halogen-free low-smoke flame-retardant material, the metal sheath can adapt to various corrosive places, and meanwhile, the cable has no influence on resources such as environment and underground water.

The standard parts used in this document are commercially available, all the components in this document are customized according to the description of the specification and the drawings, and the connection relationship and specific structure between the layers in this document are all performed by the prior art, such as by mechanical methods, by adhesives, by various welding methods such as thermal welding, ultrasonic welding, flux, welding, and fusion crimping, and no specific description is made here.

When the cable is used, the copper conductive wire core 1 plays a role in transmitting electric energy, the cable can be a round solid core, or can be a multi-core twisted together, generally, the cable is an annealing copper conductor, the mineral insulating layer 2 is made by calcining a synthetic mica tape and adopting a mode of multilayer overlapping and concentric wrapping, the metal copper sleeve protective layer 5 is made of a high-conductivity annealing copper strip, a longitudinal argon arc welding continuous welding embossing process is used, the cable can play a role in protection and guarantee the flexibility during cable installation, the halogen-free low-smoke flame-retardant outer sheath 6 used as product protection is formed by extruding and wrapping an environment-friendly low-smoke halogen-free flame-retardant material, so that the metal sheath can adapt to various corrosive places, and meanwhile, the cable does not have any influence on resources such as environment and underground water.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 metal copper sheath, includes copper conductor core (1), its characterized in that: the cable is characterized in that a mineral insulating layer (2) wraps the outside of the copper conductive cable core (1), a halogen-free flame-retardant filling rope (3) wraps the outside of the mineral insulating layer (2), a halogen-free flame-retardant wrapping layer (4) wraps the outside of the mineral insulating layer (2), a metal copper sleeve protective layer (5) wraps the outside of the halogen-free flame-retardant wrapping layer (4), and a halogen-free low-smoke flame-retardant outer sheath (6) wraps the outside of the metal copper sleeve protective layer (5).

2. The metal-copper sheathed flexible mineral-insulated fireproof cable according to claim 1, wherein: the copper conductive wire core (1) is formed by multi-core stranding.

3. The metal-copper sheathed flexible mineral-insulated fireproof cable according to claim 1, wherein: the mineral insulating layer (2) is made of calcined synthetic mica tapes, and the mica tapes are connected in a multi-layer overlapping concentric wrapping mode.

4. The metal-copper sheathed flexible mineral-insulated fireproof cable according to claim 1, wherein: the metal copper sleeve protective layer (5) is made of a high-conductivity annealed copper strip by a longitudinal argon arc welding continuous welding embossing process.

5. The metal-copper sheathed flexible mineral-insulated fireproof cable according to claim 1, wherein: the halogen-free low-smoke flame-retardant outer sheath (6) is formed by extruding a halogen-free low-smoke flame-retardant material.