CN212809878U

CN212809878U - Low-smoke halogen-free power cable

Info

Publication number: CN212809878U
Application number: CN202021218067.XU
Authority: CN
Inventors: 陈建
Original assignee: Guangdong Yuanyang Cable Technology Co ltd
Current assignee: Guangdong Yuanyang Cable Technology Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-03-26
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses a low smoke and zero halogen power cable, including sinle silk, the interior sheath of steamed low smoke flame retardant polyolefin and steamed low smoke flame retardant polyolefin outer jacket, be equipped with ethylene thermal contraction layer between sinle silk and the steamed low smoke flame retardant polyolefin inner jacket, and the outside of sinle silk is filled there is the polyurethane rubber piece, and ethylene thermal contraction layer is through the cladding sinle silk and polyurethane rubber piece, and steamed low smoke flame retardant polyolefin inner jacket is through the cladding ethylene thermal contraction layer, is equipped with the armor between steamed low smoke flame retardant polyolefin outer jacket and the steamed low smoke flame retardant polyolefin inner jacket, and the armor is through weaving the cladding in the steamed low smoke flame retardant polyolefin inner jacket outside, and steamed low smoke flame retardant polyolefin outer jacket's outside cladding has the fire prevention flame retardant coating, under the condition of burning, does not release halogenous gas, and smog concentration is low; and the safety in use performance is high, the mechanical property is excellent, the chemical resistance is strong, the mouse bite can be prevented, and the mechanical external force can be borne.

Description

Low-smoke halogen-free power cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a low smoke and zero halogen power cable.

Background

With the development of the world economy and science, the demand of the electric wire and the electric cable is increased, and the performance requirements of the electric wire and the electric cable are improved. Under new economic conditions and technical conditions, the development of the global wire and cable industry presents a new trend, and the environment-friendly cable gradually becomes the development key point of the global cable. At present, when a fire disaster occurs, a PVC mixture of a traditional PVC electric wire is easily decomposed to escape a large amount of highly toxic and corrosive HCL gas after being heated, and a large amount of highly toxic dense smoke is generated, so that great life and property losses are caused, great difficulty is brought to rescue work, and especially when the traditional PVC electric wire is used in environments with relatively closed spaces, such as channels or tunnels, hidden dangers are brought to environmental safety.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low smoke and zero halogen power cable has solved the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a low smoke and zero halogen power cable, includes sinle silk, the interior sheath of steamed low smoke flame retardant polyolefin and steamed low smoke flame retardant polyolefin outer jacket, be equipped with ethylene thermal contraction layer between sinle silk and the steamed low smoke flame retardant polyolefin inner jacket, and the outside packing of sinle silk has the polyurethane rubber piece, ethylene thermal contraction layer passes through the cladding sinle silk and polyurethane rubber piece, steamed low smoke flame retardant polyolefin inner jacket passes through the cladding ethylene thermal contraction layer, be equipped with the armor between steamed low smoke flame retardant polyolefin outer jacket and the steamed low smoke flame retardant polyolefin inner jacket, and the armor is through weaving the cladding in the low smoke flame retardant polyolefin inner jacket outside, the outside cladding of steamed low smoke flame retardant polyolefin outer jacket has the fire-retardant layer of fire prevention.

Further, the sinle silk includes oxygen-free copper conductor, halogen-free isolation layer, electrically conductive shielding area and the insulating layer that sets gradually from inside to outside, the outside at oxygen-free copper conductor is passed through the cladding to the halogen-free isolation layer through the cladding to halogen-free isolation layer, electrically conductive shielding area passes through the cladding in the outside at halogen-free isolation layer, the insulating layer is through the cladding in the outside at electrically conductive shielding area.

Furthermore, the insulating layer is made of cross-linked polyethylene.

Furthermore, the number of the wire cores is 2-5.

Further, the armor is a steel tape armor.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a low smoke and zero halogen power cable, under the condition of burning, does not release the halogenous gas, and smog concentration is low, and gas corrosivity is low; and the safety in use performance is high, the mechanical property is excellent, the chemical resistance is strong, the mouse bite can be prevented, and the mechanical external force can be borne.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: the cable comprises a cable core 1, an oxygen-free copper conductor 11, a halogen-free isolation layer 12, a conductive shielding belt 13, an insulation layer 14, a halogen-free low-smoke flame-retardant polyolefin inner protection layer 2, a halogen-free low-smoke flame-retardant polyolefin outer protection layer 3, an ethylene thermal contraction layer 4, a polyurethane rubber block 5, an armor 6 and a fireproof flame-retardant layer 7.

Detailed Description

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

in the description of the present invention, it is to be understood that the terms "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "inner," and the like are used in the orientation or positional relationship indicated in the drawings, merely for the purpose of describing the invention and simplifying the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

A low smoke and zero halogen power cable as shown in fig. 1, including sinle silk 1, the interior sheath 2 of steamed low smoke flame retardant polyolefin and steamed low smoke flame retardant polyolefin outer jacket 3, be equipped with ethylene thermal contraction layer 4 between sinle silk 1 and the interior sheath 2 of steamed low smoke flame retardant polyolefin, and the outside packing of sinle silk 1 has polyurethane rubber block 5, ethylene thermal contraction layer 4 is through the cladding sinle silk 1 and polyurethane rubber block 5, the interior sheath 2 of steamed low smoke flame retardant polyolefin passes through the cladding ethylene thermal contraction layer 4, be equipped with armor 6 between steamed low smoke flame retardant polyolefin outer jacket 3 and the steamed low smoke flame retardant polyolefin inner jacket 2, and armor 6 is through weaving the cladding in the interior sheath 2 outsides of steamed low smoke flame retardant polyolefin, the outside cladding of steamed low smoke flame retardant polyolefin outer jacket 3 has fire-retardant layer 7.

In this embodiment, the core 1 includes an oxygen-free copper conductor 11, a halogen-free isolation layer 12, a conductive shielding tape 13 and an insulating layer 14, which are sequentially arranged from inside to outside, the halogen-free isolation layer 12 is coated outside the oxygen-free copper conductor 11, the conductive shielding tape 13 is coated outside the halogen-free isolation layer 12, and the insulating layer 14 is coated outside the conductive shielding tape 13.

In this embodiment, the insulating layer 14 is made of cross-linked polyethylene.

In this embodiment, the number of the wire cores 1 is 2 to 5.

In this embodiment, the sheath 6 is a steel tape sheath.

Compared with the prior art, the low-smoke halogen-free power cable provided by the utility model does not release halogen-containing gas under the condition of combustion, and has low smoke concentration and low gas corrosivity; and the safety in use performance is high, the mechanical property is excellent, the chemical resistance is strong, the mouse bite can be prevented, and the mechanical external force can be borne.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A low smoke and zero halogen power cable which is characterized in that: comprises a wire core (1), a halogen-free low-smoke flame-retardant polyolefin inner protective layer (2) and a halogen-free low-smoke flame-retardant polyolefin outer protective layer (3), an ethylene thermal contraction layer (4) is arranged between the wire core (1) and the halogen-free low-smoke flame-retardant polyolefin inner protective layer (2), and the outer side of the wire core (1) is filled with a polyurethane rubber block (5), the ethylene thermal contraction layer (4) coats the wire core (1) and the polyurethane rubber block (5), the halogen-free low-smoke flame-retardant polyolefin inner protective layer (2) is coated with the ethylene thermal contraction layer (4), an armor (6) is arranged between the halogen-free low-smoke flame-retardant polyolefin outer protective layer (3) and the halogen-free low-smoke flame-retardant polyolefin inner protective layer (2), the armor (6) is coated outside the halogen-free low-smoke flame-retardant polyolefin inner protective layer (2) through weaving, the outer side of the halogen-free low-smoke flame-retardant polyolefin outer protective layer (3) is coated with a fireproof flame-retardant layer (7).

2. A low smoke zero halogen power cable according to claim 1, characterized in that: sinle silk (1) include oxygen-free copper conductor (11), no halogen isolation layer (12), electrically conductive shielding area (13) and insulating layer (14) that set gradually from inside to outside, no halogen isolation layer (12) are through the cladding in the outside of oxygen-free copper conductor (11), electrically conductive shielding area (13) are through the cladding in the outside of no halogen isolation layer (12), insulating layer (14) are through the cladding in the outside of electrically conductive shielding area (13).

3. A low smoke zero halogen power cable according to claim 2, characterized in that: the insulating layer (14) is made of cross-linked polyethylene.

4. A low smoke zero halogen power cable according to claim 1, characterized in that: the number of the wire cores (1) is 2-5.

5. A low smoke zero halogen power cable according to claim 1, characterized in that: the armor (6) is a steel tape armor.