CN217640751U

CN217640751U - Fire-resistant low-smoke halogen-free cable

Info

Publication number: CN217640751U
Application number: CN202122894911.1U
Authority: CN
Inventors: 江少华; 赵大亮; 肖静蕾
Original assignee: Wuhan Jianghua Wire And Cable Co ltd
Current assignee: Hubei Xinyicheng Electrical Equipment Co.,Ltd.
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-10-21
Anticipated expiration: 2031-11-24

Abstract

The utility model relates to a fire-resistant low smoke and zero halogen cable technical field, and fire-resistant low smoke and zero halogen cable is disclosed, including the wearing layer, reduce the layer, fixed bed and metal core, the flame retardant coating surface is located to the wearing layer cover, the inside layer that reduces that is provided with of flame retardant coating, the fixed bed surface is located to reduce the layer cover, the inside metal core that is provided with a plurality of groups of fixed bed, the utility model discloses, through being provided with the wearing layer, the flame retardant coating adopts the preparation of the fire-retardant polyolefin insulating material of halogen-free low smoke to form, the effectual life who improves the cable, the dense cigarette that the burning of ordinary cable oversheath produced has been reduced, the acid gas that the burning generated has been reduced, cause danger to the rescue, through being provided with the fixed bed, fixed standing groove, parting bead and arrangement groove, the effectual current core that has solved is in the same place tightly hugged closely usually, when the electric current of passing through is great, reduce the heat and pile up, the fusing of metal core and the possibility of conflagration have been reduced.

Description

Fire-resistant low-smoke halogen-free cable

Technical Field

The utility model relates to a fire-resistant low smoke and zero halogen cable technical field specifically is fire-resistant low smoke and zero halogen cable.

Background

The cable is an insulated conductor formed by arranging one or more mutually insulated conductive wire cores in a sealed sheath, a protective covering layer can be added outside the insulated conductor for transmitting, distributing electric energy or transmitting electric signals, the cable mainly has larger size and more complex structure compared with the common cable, the cable is an insulated conductor formed by arranging one or more mutually insulated conductive wire cores in the sealed sheath, the protective covering layer can be added outside the insulated conductor for transmitting, distributing electric energy or transmitting electric signals, the cable mainly has larger size and more complex structure compared with the common cable, and the fire-resistant cable is a cable capable of keeping safe operation for a certain time under the condition of flame combustion. Fire-resistant cable wide application is in high-rise building, subway, underground street, large-scale power station and important industrial and mining enterprises etc. and fire prevention safety and the relevant place of fire control lifesaving, current ordinary cable oversheath adopts PVC more, it is wear-resisting, cause the damage of cable very easily, can lead to the conflagration, and the dense smoke of ordinary cable oversheath burning production, burning generates acid gas and causes danger to the rescue, current metal core is in the same place closely usually, when the electric current of passing through is great, resistance is great, the heat piles up unable heat dissipation, thereby the fusing that can lead to the metal core can lead to the conflagration to take place danger.

Therefore, a fire-resistant low-smoke halogen-free cable is designed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a fire-resistant low smoke and zero halogen cable has solved the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

fire-resistant low smoke and zero halogen cable, including wearing layer, tightening layer, fixed bed and metal core, the wearing layer surface is located to the wearing layer cover, and the inside tightening layer that is provided with of fire-proof layer tightens the layer cover and locates the fixed bed surface of layer, and the fixed bed is inside to be provided with a plurality of groups metal core.

Furthermore, a plurality of groups of wear-resistant ferrules are sleeved on the outer surface of the wear-resistant layer, and the wear-resistant ferrules are fixedly connected to the outer surface of the wear-resistant layer.

Furthermore, the fireproof layer is made of halogen-free low-smoke flame-retardant polyolefin insulating materials.

Further, the compact layer is made of polyethylene materials.

Furthermore, fixed layer inside is provided with the fixed standing groove of a plurality of groups, and the fixed layer adopts fluoroplastics insulating material to make and forms.

Further, the outer surface of the metal core body is sleeved with an insulating layer, the insulating layer is made of vinyl fluoride polymer insulation, an isolating strip is arranged between each group of metal core bodies, and each group of metal core bodies are placed inside a fixed placing groove formed in the fixed layer.

Furthermore, the isolating bar is made of cross-linked polyethylene insulating materials, four groups of placing grooves are formed in the outer surface of the isolating bar, and a group of metal cores is arranged on the outer surface of each group of placing grooves.

The utility model has the advantages that:

1. the utility model discloses a, through being provided with wearing layer, flame retardant coating, the flame retardant coating adopts the preparation of steamed low cigarette fire-retardant polyolefin insulating material to form, and the effectual current ordinary cable oversheath of having solved adopts PVC more, and is not wear-resisting, has improved the life of cable, has reduced the risk that leads to the conflagration, has reduced the dense cigarette that ordinary cable oversheath burning produced, has reduced the burning and has generated acid gas and cause danger to the rescue.

2. The utility model discloses a, through being provided with fixed bed, fixed standing groove, parting bead and arrangement groove, the effectual current metal core of having solved is hugged closely together tightly usually, and when the electric current of passing through was great, resistance was great, and the reduction heat is piled up, thereby has reduced the fusing that leads to the metal core and has leaded to the conflagration to take place dangerous probably.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view of the structure of the present invention;

FIG. 3 is a schematic structural view of the spacer bar of the present invention;

fig. 4 is a schematic structural diagram of the middle fixing layer of the present invention.

In the figure: 1. a wear layer; 2. a compact layer; 3. a fixed layer; 4. a metal core; 5. a wear-resistant ferrule; 6. a fire barrier layer; 7. fixing the placing groove; 8. an insulating layer; 9. a spacer bar; 10. and (5) placing the groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to FIGS. 1-4: fire-resistant low smoke and zero halogen cable, including wearing layer 1, it is 2 to tighten layer, fixed bed 3 and

metal core

4, 1 surface cover of wearing layer is equipped with the wear-resisting lasso 5 of a plurality of groups, 5 fixed connection in wearing layer 1 surfaces of wear-resisting lasso, 6 surfaces of flame retardant coating are located to 1 cover of wearing layer, flame retardant coating 6 adopts the preparation of the fire-retardant polyolefin insulating material of halogen-free low smoke to form, 6 inside tightening layer 2 that is provided with of flame retardant coating, it adopts the preparation of polyethylene material to tighten layer 2 to form, it locates 3 surfaces of fixed bed to tighten layer 2 covers, 3 inside metal cores 4 of a plurality of groups that are provided with of fixed bed.

Wherein, fixed bed 3 is inside to be provided with the fixed standing groove 7 of a plurality of groups, and fixed bed 3 adopts fluoroplastics insulating material to make and forms, and fixed standing groove 7 can be firm make metal core 4 fix inside fixed bed 3, can fill the fire retardant between fixed bed 3 and the 4 spaces of metal core, if the conflagration breaks out, isolated fixed bed 3 and metal core 4 that can be fine.

Wherein, 4 surface covers of metal core are equipped with insulating layer 8, insulating layer 8 adopts to hinder the insulating preparation of alkene polyvinyl fluoride to form, be provided with parting bead 9 between every group metal core 4, parting bead 9 adopts the preparation of crosslinked polyethylene insulating material to form, four group's resettlement grooves 10 have been seted up to parting bead 9 surface, and every group resettlement groove 10 surface is provided with a set of metal core 4, and every group metal core 4 places inside fixed standing groove 7 that 3 inside settings in fixed bed, 9 effectual keep apart between 4 with the metal core of parting bead, metal core 4 has been avoided tightly laminating, can produce higher temperature when passing through the electric current.

To sum up, the utility model discloses when using, through being provided with wearing layer 1, flame retardant coating 6 adopts the preparation of the low fire-retardant polyolefin insulating material of halogen-free low cigarette to form effectually to have solved current ordinary cable oversheath and adopted PVC more, it is wear-resisting, the life of cable has been improved, the risk that leads to the conflagration has been reduced, the dense cigarette that ordinary cable oversheath burning produced has been reduced, it produces acid gas and causes danger to the rescue to have reduced the burning, through being provided with fixed bed 3, fixed standing groove 7, parting strip 9 and resettlement groove 10, the effectual current metal core 4 of having solved is in the same place of hugging closely tightly usually, when the electric current of passing through is great, resistance is great, reduce the heat and pile up, thereby reduced the fusing that leads to metal core 4 and the conflagration emergence danger possibility.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. Fire-resistant low smoke and zero halogen cable, including wearing layer (1), reduce layer (2), fixed bed (3) and metal core (4), its characterized in that: wearing layer (1) sets up in flame retardant coating (6) surface, and flame retardant coating (6) inside is provided with to reduce layer (2), reduces layer (2) cover and locates fixed bed (3) surface, and fixed bed (3) inside is provided with a plurality of groups metal core (4), fixed bed (3) inside is provided with a plurality of groups fixed standing groove (7), and fixed bed (3) adopt fluoroplastics insulating material to make and form.

2. The fire-resistant low-smoke halogen-free cable according to claim 1, characterized in that: the outer surface of the wear-resistant layer (1) is provided with a plurality of groups of wear-resistant ferrules (5), and the wear-resistant ferrules (5) are fixedly connected to the outer surface of the wear-resistant layer (1).

3. The fire-resistant low-smoke zero-halogen cable according to claim 1, characterized in that: the fireproof layer (6) is made of halogen-free low-smoke flame-retardant polyolefin insulating materials.

4. The fire-resistant low-smoke zero-halogen cable according to claim 1, characterized in that: the compact layer (2) is made of polyethylene materials.

5. The fire-resistant low-smoke halogen-free cable according to claim 1, characterized in that: the outer surface of the metal core bodies (4) is provided with an insulating layer (8), the insulating layer (8) is made of vinyl-resistant polyvinyl fluoride insulation, an isolating strip (9) is arranged between every two metal core bodies (4), and every two metal core bodies (4) are placed inside a fixed placing groove (7) formed in the fixed layer (3).

6. The fire-resistant low-smoke zero-halogen cable according to claim 5, characterized in that: the isolation strips (9) are made of cross-linked polyethylene insulating materials, four groups of arrangement grooves (10) are formed in the outer surfaces of the isolation strips (9), and a group of metal cores (4) is arranged on the outer surface of each group of arrangement grooves (10).