CN219066483U

CN219066483U - Crosslinked polyethylene insulation halogen-free low-smoke flame-retardant B1-grade special control cable

Info

Publication number: CN219066483U
Application number: CN202223390053.8U
Authority: CN
Inventors: 周海燕; 姚德时; 章泽培; 陈尚凤
Original assignee: Guangdong Cable Works Co ltd
Current assignee: Guangdong Cable Works Co ltd
Priority date: 2022-12-17
Filing date: 2022-12-17
Publication date: 2023-05-23
Anticipated expiration: 2032-12-17

Abstract

The utility model discloses a special control cable of a B1 level, which belongs to the technical field of cables, and particularly relates to a halogen-free low-smoke flame-retardant B1 level special control cable of a crosslinked polyethylene, wherein the special control cable comprises uniformly arranged conductors, crosslinked polyethylene insulating layers are arranged outside the uniformly arranged conductors, halogen-free low-smoke glass fiber belts are jointly arranged outside the uniformly arranged crosslinked polyethylene insulating layers, halogen-free low-smoke flame-retardant oxygen-insulating layers are arranged outside the halogen-free low-smoke flame-retardant oxygen-insulating layers, halogen-free low-smoke glass fiber heat-insulating layers are arranged outside the halogen-free low-smoke flame-retardant oxygen-insulating layers, and the cable adopts various high-flame-retardant halogen-free low-smoke low-corrosion materials.

Description

Crosslinked polyethylene insulation halogen-free low-smoke flame-retardant B1-grade special control cable

Technical Field

The utility model relates to the technical field of cables, in particular to a crosslinked polyethylene insulation halogen-free low-smoke flame-retardant B1-level special control cable.

Background

Wire and cable for transmitting electric energy, information and wire products for effecting electromagnetic energy conversion, the broad sense of wire and cable also being referred to simply as cable, the narrow sense of cable referring to insulated cable, which can be defined as an aggregate consisting of; one or more insulated cores, and the respective coatings, total protective layers and outer protective layers that they may have, may also have additional uninsulated conductors.

However, the existing cable has the problem of poor flame retardant effect, and after long-time use, the outer wrapping layer is easy to produce toxic gas due to continuous aging, and is easy to drip when being burnt accidentally, so that the use safety is not high.

Disclosure of Invention

The utility model aims to provide a crosslinked polyethylene insulating halogen-free low-smoke flame-retardant B1-level special control cable, which solves the problems that the existing cable proposed in the background art has poor flame-retardant effect, and after long-time use, the outer wrapping layer is easy to generate toxic gas due to continuous aging and is easy to drip when being burnt accidentally, and the use safety is not high.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the halogen-free low-smoke flame-retardant B1-level special control cable comprises uniformly arranged conductors, wherein crosslinked polyethylene insulating layers are arranged outside the uniformly arranged conductors, halogen-free low-smoke glass fiber bands are arranged outside the uniformly arranged crosslinked polyethylene insulating layers together, halogen-free low-smoke flame-retardant oxygen-isolating layers are arranged outside the halogen-free low-smoke glass fiber bands, halogen-free low-smoke flame-retardant oxygen-isolating layers are arranged outside the halogen-free low-smoke flame-retardant oxygen-isolating layers, armored steel wires uniformly arranged between the halogen-free low-smoke flame-retardant oxygen-isolating layers and the halogen-free low-smoke glass fiber heat-insulating layers are arranged, and halogen-free low-smoke flame-retardant B1-level non-dripping PE sheaths are arranged outside the halogen-free low-smoke glass fiber heat-insulating layers.

Preferably, the thickness of the halogen-free low-smoke flame-retardant B1-grade non-dripping PE sheath is 2.2mm.

Preferably, the thickness of the halogen-free low-smoke flame-retardant oxygen-isolating layer is 1.4mm.

Preferably, the thickness of the crosslinked polyethylene insulation layer is 0.7mm.

Preferably, the conductor is 61 x 1/1.76, the conductor is made from copper, and the purity of the copper is >99.97%.

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

the cable adopts various high flame retardant halogen-free low smoke low toxicity low corrosion materials, compared with the common control cable, the flame retardant performance is greatly improved, the cable has the excellent performances of low toxicity, low corrosion, no dripping after combustion and the like, the safety of the cable is further improved, and the cable is suitable for public places with dense mouths such as super high-rise buildings, rail transit, schools, super markets, subway stations, hospitals, power stations, computing centers, airports, exhibition halls and the like.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

In the figure: 1 conductor, 2 crosslinked polyethylene insulating layer, 3 halogen-free low-smoke glass fiber band, 4 halogen-free low-smoke flame-retardant oxygen-isolating layer, 5 armoured steel wire, 6 halogen-free low-smoke glass fiber insulating layer, 7 halogen-free low-smoke flame-retardant B1-level non-dripping PE sheath.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Examples:

referring to fig. 1, the present utility model provides a technical solution: the halogen-free low-smoke flame-retardant B1-level special control cable comprises uniformly arranged conductors 1, wherein crosslinked polyethylene insulating layers 2 are arranged outside the uniformly arranged conductors 1, halogen-free low-smoke glass fiber bands 3 are arranged outside the uniformly arranged crosslinked polyethylene insulating layers 2 together, halogen-free low-smoke flame-retardant oxygen-isolating layers 4 are arranged outside the halogen-free low-smoke glass fiber bands 3, halogen-free low-smoke flame-retardant oxygen-isolating layers 4 are arranged outside the halogen-free low-smoke flame-retardant oxygen-isolating layers 4, armored steel wires 5 which are uniformly arranged are arranged between the halogen-free low-smoke flame-retardant oxygen-isolating layers 4 and the halogen-free low-smoke glass fiber heat-insulating layers 6, and halogen-free low-smoke flame-retardant B1-level non-dripping PE sheaths 7 are arranged outside the halogen-free low-smoke flame-retardant glass fiber heat-isolating layers 6.

The thickness of the halogen-free low-smoke flame-retardant B1-grade non-dripping PE sheath 7 is 2.2mm.

The thickness of the halogen-free low-smoke flame-retardant oxygen-isolating layer 4 is 1.4mm.

The thickness of the crosslinked polyethylene insulation layer 2 was 0.7mm.

Conductor 1 was model 61 x 1/1.76, conductor 1 was made from copper, and the purity of copper was >99.97%.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 fire-retardant B1 level special control cable of steamed low cigarette of non-crosslinked polyethylene insulation, includes conductor (1) of evenly arranging, its characterized in that, the outside of conductor (1) of evenly arranging all is provided with crosslinked polyethylene insulating layer (2), the outside of crosslinked polyethylene insulating layer (2) of evenly arranging is provided with steamed low cigarette glass fiber band (3) jointly, the outside of steamed low cigarette glass fiber band (3) is provided with steamed low cigarette fire-retardant oxygen barrier layer (4), the outside of steamed low cigarette fire-retardant oxygen barrier layer (4) is provided with steamed low cigarette glass fiber insulating layer (6), be provided with armoured steel wire (5) of evenly arranging between steamed low cigarette glass fiber insulating layer (4) and the steamed low cigarette glass fiber insulating layer (6), the outside of steamed low cigarette glass fiber insulating layer (6) is provided with steamed low cigarette fire-retardant B1 level and does not drip PE sheath (7).

2. The crosslinked polyethylene insulated halogen-free low smoke flame retardant B1 grade special control cable of claim 1, wherein: the thickness of the halogen-free low-smoke flame-retardant B1-grade non-dripping PE sheath (7) is 2.2mm.

3. The crosslinked polyethylene insulated halogen-free low smoke flame retardant B1 grade special control cable of claim 1, wherein: the thickness of the halogen-free low-smoke flame-retardant oxygen-isolating layer (4) is 1.4mm.

4. The crosslinked polyethylene insulated halogen-free low smoke flame retardant B1 grade special control cable of claim 1, wherein: the thickness of the crosslinked polyethylene insulation layer (2) is 0.7mm.

5. The crosslinked polyethylene insulated halogen-free low smoke flame retardant B1 grade special control cable of claim 1, wherein: the type of the conductor (1) is 61 x 1/1.76, the conductor (1) is made of copper, and the purity of copper is >99.97%.