CN216793377U

CN216793377U - Low-voltage aluminum alloy interlocking armored low-smoke halogen-free flame-retardant power cable

Info

Publication number: CN216793377U
Application number: CN202220492564.1U
Authority: CN
Inventors: 叶明高
Original assignee: Anhui Nanyang New Material Technology Co ltd
Current assignee: Anhui Nanyang New Material Technology Co ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-06-21
Anticipated expiration: 2032-03-09

Abstract

The utility model relates to a power cable technical field just discloses a low pressure aluminum alloy interlocking armor low smoke and zero halogen flame retardant power cable, including many alloy conductors, alloy conductor's outside cladding has insulating typewriter ribbon sinle silk discernment layer, it has mineral insulating layer, a plurality of to fill between alloy conductor and the insulating typewriter ribbon sinle silk discernment layer the outer cladding of insulating typewriter ribbon sinle silk discernment layer has same interlocking armor, the inboard fixedly connected with one deck halogen-free inner liner of interlocking armor, it has the filling layer to fill between halogen-free inner liner and a plurality of insulating typewriter ribbon sinle silk discernment layers. The application greatly improves the flame retardant property of the whole cable, and ensures the use safety and the service life of the cable.

Description

Low-voltage aluminum alloy interlocking armored low-smoke halogen-free flame-retardant power cable

Technical Field

The application relates to the technical field of power cables, in particular to a low-voltage aluminum alloy interlocking armored low-smoke halogen-free flame-retardant power cable.

Background

The power cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology:

the existing power cable is poor in overall flame retardant property, the cable can quickly lose the efficacy in a burning environment, extra penetration protection is needed, the use cost is high, the use safety is poor, and the actual use requirement cannot be well met.

SUMMERY OF THE UTILITY MODEL

The application aims to solve the problems that the overall flame retardant performance of a power cable in the prior art is poor, the cable can lose the efficacy quickly in a firing environment, extra penetration protection is needed, the use cost is high, the use safety is poor, and the actual use requirement cannot be well met.

In order to achieve the purpose, the following technical scheme is adopted in the application:

the utility model provides a fire-retardant power cable of low pressure aluminum alloy interlocking armor low smoke and zero halogen, includes many alloy conductors, alloy conductor's the outside cladding has insulating typewriter ribbon sinle silk recognition layer, it has mineral insulating layer, a plurality of to fill between alloy conductor and the insulating typewriter ribbon sinle silk recognition layer the outer cladding of insulating typewriter ribbon sinle silk recognition layer has same interlocking armor, the inboard fixedly connected with one deck halogen-free inner liner of interlocking armor, it has the filling layer to fill between halogen-free inner liner and a plurality of insulating typewriter ribbon sinle silk recognition layers.

Preferably, the alloy conductor is an annealed conductor formed by drawing and stranding an aluminum alloy rod.

Preferably, the insulation ribbon wire core identification layer is specifically a crosslinked polyethylene insulation layer.

Preferably, the interlocking armor layer is specifically an aluminum magnesium alloy strip interlocking armor.

Preferably, the filling layer is specifically a halogen-free low-smoke material filling layer.

Compared with the prior art, the application provides a low pressure aluminum alloy interlocking armor low smoke and zero halogen flame retardant power cable, possesses following beneficial effect:

the low-voltage aluminum alloy interlocking armored low-smoke halogen-free flame-retardant power cable is provided with the alloy conductor, the alloy conductor is specifically an annealed conductor after the aluminum alloy rod is drawn and twisted, the overall structural strength is high, the high temperature resistance is good, the maximum temperature of the alloy conductor is allowed to be 90 ℃ for long-term operation, the maximum temperature of the alloy conductor is allowed to be 250 ℃ for short time, a mineral far layer and an insulation ribbon wire core identification layer are arranged outside the alloy conductor, and the alloy conductor is matched with an interlocking armor layer, a halogen-free inner liner layer and a filling layer which are coated outside, so that the alloy conductor is suitable for laying cable bridges, supports or hooks in indoor dry places, and can also be directly laid on indoor suspended ceilings and ceilings, the flame-retardant cable can resist flame burning at 750 ℃ and 50 ℃ for 90 minutes, normal power supply can still be kept, the flame retardation of the housing does not extend, the flame retardation exceeds A level, extra penetration protection is not needed, the flame retardation of the whole cable is greatly improved, and the use safety and the service life of the cable are ensured.

And the part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, and this application has greatly improved the fire behaviour of whole cable, has guaranteed the safety in utilization and the life of cable.

Drawings

Fig. 1 is a schematic structural diagram of a low-voltage aluminum alloy interlocked armored low-smoke halogen-free flame-retardant power cable provided by the application.

In the figure: 1. an alloy conductor; 2. an insulation ribbon wire core identification layer; 3. a mineral insulation layer; 4. interlocking armor layers; 5. a halogen-free inner liner layer; 6. and (5) filling the layer.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present application.

Referring to fig. 1, a low pressure aluminum alloy interlocking armor low smoke and zero halogen flame retardant power cable, including many alloy conductor 1, alloy conductor 1's outside cladding has insulating typewriter ribbon sinle silk discernment layer 2, it has mineral insulating layer 3 to fill between alloy conductor 1 and the insulating typewriter ribbon sinle silk discernment layer 2, the outer cladding of a plurality of insulating typewriter ribbon sinle silk discernment layers has same interlocking armor 4, the inboard fixedly connected with one deck halogen-free inner liner 5 of interlocking armor 4, it has filling layer 6 to fill between halogen-free inner liner 5 and a plurality of insulating typewriter ribbon sinle silk discernment layers 2.

The alloy conductor 1 is specifically an annealed conductor after the aluminum alloy rod is drawn and stranded, has high overall structural strength and good high-temperature resistance, and allows the maximum temperature of 90 ℃ for long-term operation and 250 ℃ for short time.

The insulation color band wire core identification layer 2 is specifically a cross-linked polyethylene insulation layer, can identify colors under good protection conditions, and is convenient to use.

The interlocking armor layer 4 is specifically an aluminum-magnesium alloy strip interlocking armor, can endure flame ignition for 90 minutes at 750 ℃ +50 ℃, still can keep normal power supply, the shell does not delay combustion, the flame retardant property exceeds A level, extra penetration protection is not needed, the flame retardant property of the whole cable is greatly improved, and the use safety and the service life of the cable are ensured.

The filling layer 6 is specifically a halogen-free low-smoke material filling layer.

The working principle is that when in use, the alloy conductor 1 is arranged, the alloy conductor 1 is specifically an annealed conductor after the aluminum alloy rod is drawn and stranded, the overall structural strength is high, the high temperature resistance is good, the maximum temperature of the alloy conductor 1 is allowed to run for a long time to be 90 ℃, the short-time allowed maximum temperature is 250 ℃, a mineral far layer 3 and an insulation color ribbon wire core identification layer 2 are arranged outside the alloy conductor 1, and an interlocking armor layer 4, a halogen-free inner liner layer 5 and a filling layer 6 which are coated outside are matched in a cutting way, so that the alloy conductor is suitable for laying cable bridges, supports or hooks in indoor dry places, and can also be directly laid on indoor suspended ceilings and ceilings, the flame-retardant cable can resist flame burning at 750 ℃ and 50 ℃ for 90 minutes, normal power supply can still be kept, the flame retardation of the housing does not extend, the flame retardation exceeds A level, extra penetration protection is not needed, the flame retardation of the whole cable is greatly improved, and the use safety and the service life of the cable are ensured.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present application, and equivalent alternatives or modifications according to the technical solutions and the application concepts of the present application, which are within the technical scope of the present application.

Claims

1. The utility model provides a fire-retardant power cable of low pressure aluminum alloy interlocking armor low smoke and zero halogen, includes many alloy conductor (1), its characterized in that, the outside cladding of alloy conductor (1) has insulating typewriter ribbon sinle silk discernment layer (2), it has mineral insulating layer (3), a plurality of to fill between alloy conductor (1) and insulating typewriter ribbon sinle silk discernment layer (2) outer cladding has same interlocking armor (4), there is not steamed inner liner (5) of inboard fixedly connected with one deck of interlocking armor (4), it has filling layer (6) to fill between no steamed inner liner (5) and a plurality of insulating typewriter ribbon sinle silk discernment layer (2).

2. The low-voltage aluminum alloy interlocking armored low-smoke halogen-free flame-retardant power cable according to claim 1, wherein the alloy conductor (1) is specifically an annealed conductor after aluminum alloy rod drawing and stranding.

3. The low-voltage aluminum alloy interlocked armored low-smoke halogen-free flame-retardant power cable according to claim 1, wherein the insulation ribbon wire core identification layer (2) is specifically a crosslinked polyethylene insulation layer.

4. The low-voltage aluminum alloy interlocking armored low-smoke halogen-free flame-retardant power cable according to claim 1, wherein the interlocking armor layer (4) is specifically an aluminum-magnesium alloy strip interlocking armor.

5. The low-voltage aluminum alloy interlocking armored low-smoke halogen-free flame-retardant power cable according to claim 1, wherein the filler layer (6) is specifically a halogen-free low-smoke material filler layer.