CN209232480U

CN209232480U - A kind of high flame resistance, low smoke cable

Info

Publication number: CN209232480U
Application number: CN201822149252.7U
Authority: CN
Inventors: 姚戌辰
Original assignee: JIAXING HAITANG ELECTRONICS CO Ltd
Current assignee: JIAXING HAITANG ELECTRONICS CO Ltd
Priority date: 2018-12-19
Filing date: 2018-12-19
Publication date: 2019-08-09
Anticipated expiration: 2028-12-19

Abstract

The utility model discloses a kind of high flame resistance, low smoke cables, including twisted pair, twisted pair sheath and flame-retardant layer, the twisted pair further includes core and insulating layer, and insulating layer is coated on the outside of the core, is coated with twisted pair sheath on the outside of the twisted pair, flame-retardant layer is coated on the outside of the twisted pair sheath, compared with prior art, the utility model is designed reasonably, structure are simple, while guaranteeing cable high flame resistance, moreover it is possible to which there is lower burning smoke-producing amount.

Description

A kind of high flame resistance, low smoke cable

[technical field]

The utility model relates to the technical field of data line, especially a kind of high flame resistance, low smoke cable.

[background technique]

The sheath PVC that the grid line of American market uses at present mainly emphasizes flame retardant property, controls the distance of burning sprawling, Reaching CM, CMR fire-retardant requirement does not require the amount of smoke generated in burning, but in 262 standard requirements of NFPA, it is right The amount of smoke that combustion test generates proposes very high requirement, and under such standard requirements, current PVC sheath cable is It is unable to satisfy the standard, therefore, it is necessary to while proposing that a kind of guarantee high fire-retardance requires, smoke-producing amount low cable when burning.

[utility model content]

The purpose of this utility model is exactly to solve the problems of the prior art, proposes a kind of high flame resistance, low smoke cable, this reality Reasonable with new design, structure is simple, while guaranteeing cable high flame resistance, moreover it is possible to have lower burning smoke-producing amount.

To achieve the above object, the utility model proposes a kind of high flame resistance, low smoke cables, including twisted pair, twisted pair to protect Set and flame-retardant layer, the twisted pair further include core and insulating layer, are coated with insulating layer on the outside of the core, outside the twisted pair Side is coated with twisted pair sheath, is coated with flame-retardant layer on the outside of the twisted pair sheath.

Preferably, the twisted pair can be surpass six class lines, seven class lines, surpass it is any one in seven class lines and eight class lines Kind, the core uses copper core.

Preferably, the insulating layer is FEP layers.

Preferably, the twisted pair sheath is aluminium foil product.

Preferably, the flame-retardant layer further includes shrinkage layer and elastic layer, elasticity layer, institute are coated on the outside of the shrinkage layer It states shrinkage layer and elastic layer designs for integral type.

Preferably, the shrinkage layer is smoke-inhibiting PVC layer.

Preferably, the elastic layer is low-smoke PVC layer.

The utility model has the beneficial effects that the utility model is designed reasonably, structure is simple, is guaranteeing cable high flame resistance While, moreover it is possible to there is lower burning smoke-producing amount.

The feature and advantage of the utility model will be described in detail by embodiment combination attached drawing.

[Detailed description of the invention]

Fig. 1 is a kind of structural schematic diagram of high flame resistance, low smoke cable of the utility model.

In figure: 1- twisted pair, 10- core, 11- insulating layer, 2- twisted pair sheath, 3- flame-retardant layer, 30- shrinkage layer, 31- bullet Property layer.

[specific embodiment]

Refering to attached drawing, a kind of high flame resistance, low smoke cable of the utility model, including twisted pair 1, twisted pair sheath 2 and flame-retardant layer 3, the twisted pair 1 further includes core 10 and insulating layer 11, and insulating layer 11, the twisted pair 1 are coated on the outside of the core 10 Outside is coated with twisted pair sheath 2, and flame-retardant layer 3 is coated on the outside of the twisted pair sheath 2, and the twisted pair 1, which can be, surpasses six Class line, seven class lines surpass any one in seven class lines and eight class lines, and the core 10 uses copper core, and the insulating layer 11 is FEP Layer, the twisted pair sheath 2 are aluminium foil product, and the flame-retardant layer 3 further includes shrinkage layer 30 and elastic layer 31, the shrinkage layer 30 Outside coats elasticity layer 31, and the shrinkage layer 30 is designed with elastic layer 31 for integral type, and the shrinkage layer 30 is smoke-inhibiting PVC Layer, the elastic layer 31 are low-smoke PVC layer.

Insulating layer 11 of the utility model using FEP production twisted pair 1, enhancing while ensure that the transmission performance of cable The flame retardant property of cable, coating twisted pair sheath 2 made of one layer of aluminium foil on the outside of twisted pair 1, so that cable has While good anti-alien crosstalk performance, moreover it is possible in combustion separate flame and twisted pair 1, further increase net The flame retardant property of line, in such a way that shrinkage layer 30 and elastic layer 31 are combined together to form flame-retardant layer 3, so that cable is in quilt When lighting, 30 heat of shrinkage layer is shunk, and drives elastic layer 31, so that 3 overall shrinkage of insulating layer and being detached from flame region, is finally subtracted Burn smoke-producing amount less, and compared with prior art, the utility model is designed reasonably, structure is simple, is guaranteeing cable high flame resistance While, moreover it is possible to there is lower burning smoke-producing amount.

Above-described embodiment is the explanation to the utility model, is not the restriction to the utility model, and any pair of sheet is practical new Scheme after type simple transformation belongs to the protection scope of the utility model.

Claims

1. a kind of high flame resistance, low smoke cable, it is characterised in that: including twisted pair (1), twisted pair sheath (2) and flame-retardant layer (3), institute Stating twisted pair (1) further includes core (10) and insulating layer (11), is coated with insulating layer (11) on the outside of the core (10), described double It is coated with twisted pair sheath (2) on the outside of twisted wire (1), is coated with flame-retardant layer (3) on the outside of the twisted pair sheath (2).

2. a kind of high flame resistance, low smoke cable as described in claim 1, it is characterised in that: the twisted pair (1), which can be, surpasses six Class line, seven class lines surpass any one in seven class lines and eight class lines, and the core (10) uses copper core.

3. a kind of high flame resistance, low smoke cable as described in claim 1, it is characterised in that: the insulating layer (11) is FEP layers.

4. a kind of high flame resistance, low smoke cable as described in claim 1, it is characterised in that: the twisted pair sheath (2) is aluminium foil Product.

5. a kind of high flame resistance, low smoke cable as described in claim 1, it is characterised in that: the flame-retardant layer (3) further includes shrinking Layer (30) and elastic layer (31), shrinkage layer (30) outside coat elasticity layer (31), the shrinkage layer (30) and elastic layer (31) it is designed for integral type.

6. a kind of high flame resistance, low smoke cable as claimed in claim 5, it is characterised in that: the shrinkage layer (30) is smoke-inhibiting PVC Layer.

7. a kind of high flame resistance, low smoke cable as claimed in claim 5, it is characterised in that: the elastic layer (31) is low-smoke PVC Layer.