CN217386724U

CN217386724U - High-flame-retardant low-smoke halogen-free B1-grade fire-resistant control cable

Info

Publication number: CN217386724U
Application number: CN202220934352.4U
Authority: CN
Inventors: 孙振; 张成和; 张成兵; 曾玉松
Original assignee: YANGZHOU ZHONGNENG CABLE CO Ltd
Current assignee: YANGZHOU ZHONGNENG CABLE CO Ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-09-06
Anticipated expiration: 2032-04-21

Abstract

The utility model discloses a high fire-retardant low smoke and zero halogen B1 level fire-resistant control cable, including at least one cable core, the cable core outside has set gradually outer fire-retardant layer, outer fire-retardant band layer, armor and outer jacket, and every cable core includes at least one sinle silk, and the sinle silk has set gradually first fire-retardant layer, shielding layer and second fire-retardant layer outward, and every sinle silk includes the conductor, and the conductor outside has set gradually insulating layer and interior fire-retardant layer, is provided with a stretch-proofing rope in every cable core; the utility model discloses a plurality of cable cores have, every cable core has a plurality of sinle silks, every sinle silk has independent interior flame retardant coating, every cable core has these two flame retardant coatings of first flame retardant coating and the fire retardant coating of second, the cable core skin still is provided with outer flame retardant coating and outer flame retardant winding band layer, what the insulating layer of sinle silk adopted simultaneously is that the silicon rubber insulating layer has fire-retardant insulating effect, the outer jacket that sets up outside the cable core has also adopted to have fire-retardant fire-resistant pottery fire-resistant silicon rubber sheath, thereby make the flame retardant efficiency of whole cable good.

Description

High-flame-retardant low-smoke halogen-free B1-grade fire-resistant control cable

Technical Field

The utility model belongs to the technical field of the cable, especially, relate to a fire-resistant control cable of high fire-retardant low smoke and zero halogen B1 level.

Background

The control cable is a power supply connecting circuit for directly transmitting electric energy to various devices and equipment, the control cable is a cable for transmitting control signals, the number of cores is generally large, and the specific number can be produced according to actual requirements.

The flame-retardant layer of ordinary control cable is less, and the cable is just damaged by high temperature very easily when meetting the condition of a fire to the staff can not carry out the last rescue operation at the equipment of treating control in the emergency, loses the best rescue opportunity.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model discloses aim at solving the defect among the prior art, provide a high fire-retardant low smoke and zero halogen B1 level fire-resistant control cable.

The technical scheme is as follows: the utility model provides a fire-resistant control cable of high fire-retardant low smoke and zero halogen B1 level, includes at least one cable core, its characterized in that: the utility model discloses a fire-retardant cable core, fire-retardant band layer, armor and outer jacket of cable core outside has set gradually outer fire-retardant layer, outer fire-retardant band layer, armor and outer jacket, every the cable core includes at least one sinle silk, the sinle silk has set gradually first fire-retardant layer, shielding layer and the fire-retardant layer of second outward, every the sinle silk includes the conductor, the conductor outside has set gradually insulating layer and interior fire-retardant layer, every be provided with a stretch-proofing rope in the cable core, outer fire-retardant band layer is ceramic fire prevention composite band around the covering, first fire-retardant layer is halogen-free glass fiber area, the fire-retardant layer of second is fire-resistant mica around the covering.

Furthermore, three wire cores are arranged in the cable core, the anti-tensile ropes are surrounded by the three wire cores, and the anti-tensile ropes are arranged at the center of the wire cores, so that the anti-tensile effect is more average, and the anti-tensile effect is better.

Furthermore, the outer flame-retardant layer and the inner flame-retardant layer are both low-smoke halogen-free flame-retardant polyolefin layers, so that the flame-retardant effect is improved.

Furthermore, the insulating layer adopts a silicon rubber insulating layer which has a flame-retardant insulating effect, so that the flame-retardant effect is further improved.

Furthermore, the outer protective layer is a ceramic fire-resistant silicon rubber sheath, so that the flame retardant effect of the cable is improved.

Furthermore, the number of the cable cores is three, the three cable cores are in contact with each other pairwise, and the structure is more stable and easier to cable.

Furthermore, the number of the cable cores is four, the cable cores are distributed in a rectangular array, the wiring requirements of devices needing more control wires can be met, and the structure is stable.

Has the advantages that: the utility model discloses a plurality of cable cores have, every cable core has a plurality of sinle silks, every sinle silk has independent interior flame retardant coating, every cable core has these two flame retardant coatings of first flame retardant coating and the fire retardant coating of second, the cable core skin still is provided with outer flame retardant coating and outer flame retardant winding band layer, what the insulating layer of sinle silk adopted simultaneously is that the silicon rubber insulating layer has fire-retardant insulating effect, the outer jacket that sets up outside the cable core has also adopted to have fire-retardant fire-resistant pottery fire-resistant silicon rubber sheath, thereby make the flame retardant efficiency of whole cable good.

Drawings

FIG. 1 is a schematic structural view of embodiment 1;

FIG. 2 is a schematic cross-sectional view of embodiment 1;

FIG. 3 is a schematic structural view of embodiment 2;

reference numerals: 1, a cable core; 1.1 a wire core; 1.1.1 a conductor; 1.1.2 insulating layers; 1.1.3 inner flame retardant layer; 1.2 a first flame retardant layer; 1.3 a shielding layer; 1.4 a second flame retardant layer; 1.5 tensile resistance; 2 an outer flame retardant layer; 3 outer flame-retardant wrapping layer; 4, an armor layer; 5 outer protecting layer.

Detailed Description

The invention will be further described with reference to the accompanying drawings:

example 1

As shown in fig. 1-2: the utility model provides a fire-resistant control cable of high fire-retardant low smoke and zero halogen B1 level, includes at least one cable core 1, its characterized in that: the cable comprises a cable core 1 and is characterized in that an outer flame-retardant layer 2, an outer flame-retardant wrapping tape layer 3, an armor layer 4 and an outer protective layer 5 are sequentially arranged on the outer side of the cable core 1, each cable core 1 comprises at least one cable core 1.1, a first flame-retardant layer 1.2, a shielding layer 1.3 and a second flame-retardant layer 1.4 are sequentially arranged on the outer side of the cable core 1.1, each cable core 1.1 comprises a conductor 1.1.1, an insulating layer 1.1.2 and an inner flame-retardant layer 1.1.3 are sequentially arranged on the outer side of the conductor 1.1.1, each tensile rope 1.5 is arranged in the cable core 1, the outer flame-retardant wrapping tape layer 3 is a ceramic fireproof composite tape wrapping layer, the first flame-retardant layer 1.2 is a halogen-free glass fiber tape, and the second flame-retardant layer 1.4 is a fireproof mica layer.

The cable core 1 is internally provided with three wire cores 1.1, and the tensile rope 1.5 is surrounded by the three wire cores 1.1; the outer flame-retardant layer 2 and the inner flame-retardant layer 1.1.3 are both low-smoke halogen-free flame-retardant polyolefin layers; the insulating layer 1.1.2 adopts a silicon rubber insulating layer 1.1.2; the outer protective layer 5 is a ceramic fireproof silicon rubber sheath; the number of the cable cores 1 is three, and every two of the three cable cores 1 are in contact with each other.

Example 2

As shown in fig. 3: this example differs from example 1 in that: the number of the cable cores 1 is four, and the four cable cores 1 are distributed in a rectangular array.

The utility model discloses a plurality of cable cores have, every cable core has a plurality of sinle silks, every sinle silk has independent interior fire-retardant layer, every cable core has these two fire-retardant layers on first fire-retardant layer and the fire-retardant layer of second, the cable core skin still is provided with outer fire-retardant layer and outer fire-retardant around the band layer, what the insulating layer of sinle silk adopted simultaneously is that the silicon rubber insulating layer has fire-retardant insulating effect, the outer jacket that sets up of cable core has also adopted and has had fire-retardant fire-resistant silicon rubber sheath of pottery to make the flame retardant efficiency of whole cable good.

Although the invention has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.

Claims

1. The utility model provides a fire-resistant control cable of high fire-retardant low smoke and zero halogen B1 level, includes at least one cable core (1), its characterized in that: the cable comprises a cable core (1), and is characterized in that an outer flame-retardant layer (2), an outer flame-retardant wrapping tape layer (3), an armor layer (4) and an outer protective layer (5) are sequentially arranged on the outer side of the cable core (1), each cable core (1) comprises at least one cable core (1.1), a first flame-retardant layer (1.2), a shielding layer (1.3) and a second flame-retardant layer (1.4) are sequentially arranged on the outer side of the cable core (1.1), each cable core (1.1) comprises a conductor (1.1.1), an insulating layer (1.1.2) and an inner flame-retardant layer (1.1.3) are sequentially arranged on the outer side of the conductor (1.1), each cable core (1) is internally provided with a tensile wrapping rope (1.5), the outer flame-retardant wrapping tape layer (3) is a ceramic fireproof composite tape, the first flame-retardant layer (1.2) is a halogen-free glass fiber tape, and the second flame-retardant layer (1.4) is a fireproof wrapping tape.

2. The high flame-retardant low-smoke zero-halogen B1-grade fire-resistant control cable according to claim 1, characterized in that: three wire cores (1.1) are arranged in the cable core (1), and the tensile rope (1.5) is surrounded by the three wire cores (1.1).

3. The high flame-retardant low-smoke zero-halogen B1-grade fire-resistant control cable according to claim 1, characterized in that: the outer flame-retardant layer (2) and the inner flame-retardant layer (1.1.3) are both low-smoke halogen-free flame-retardant polyolefin layers.

4. The high flame-retardant low-smoke zero-halogen B1-grade fire-resistant control cable according to claim 1, characterized in that: the insulating layer (1.1.2) is a silicon rubber insulating layer (1.1.2).

5. The high flame-retardant low-smoke zero-halogen B1-grade fire-resistant control cable according to claim 1, characterized in that: the outer protective layer (5) is a ceramic fireproof silicon rubber sheath.

6. The high flame-retardant low-smoke zero-halogen B1-grade fire-resistant control cable according to claim 1, characterized in that: the number of the cable cores (1) is three, and every two of the three cable cores (1) are in contact with each other.

7. The high flame-retardant low-smoke zero-halogen B1-grade fire-resistant control cable according to claim 1, characterized in that: the number of the cable cores (1) is four, and the four cable cores (1) are distributed in a rectangular array.