CN104575798A

CN104575798A - Halogen-free low-smoke flame-retardant cable

Info

Publication number: CN104575798A
Application number: CN201310475231.3A
Authority: CN
Inventors: 荆彦铭
Original assignee: NINGBO OCEAN CABLE CO Ltd
Current assignee: NINGBO OCEAN CABLE CO Ltd
Priority date: 2013-10-13
Filing date: 2013-10-13
Publication date: 2015-04-29

Abstract

The invention discloses a halogen-free low-smoke flame-retardant cable. The halogen-free low-smoke flame-retardant cable comprises a conductor, an insulating layer, a filling layer, a wrapping tape wrapping layer, a lining layer, a steel band armor layer and an outer jacket, wherein the outer layer of the conductor is wrapped with the insulating layer; the outer layer of the insulating layer is wrapped with the filling layer; the filling layer is wrapped with wrapping tape wrapping layer; the wrapping tape wrapping layer is wrapped with the lining layer, the steel tape armor layer and the outer jacket sequentially. The halogen-free low-smoke flame-retardant cable is high in fire resistance, resistant to high temperature, low in cost and high in safety.

Description

A kind of halide-free low-smoke fireproof cable

Technical field

The present invention relates to a kind of halide-free low-smoke fireproof cable.

Background technology

Halide-free low-smoke fireproof cable is widely used in the place relevant with fire safety and fire-extinguishing and lifesaving such as skyscraper, underground railway, undergrond street, large-scale power station and important industrial and mining enterprises, such as, fire-fighting equipment and promptly to supply line and the control circuit of the emergency services such as leading lights., although the normal power supply that still can maintain a period of time after catching fire, there is price, complex process, problem that difficulty of construction is large in existing mineral insulated cable

Summary of the invention

For the deficiency that prior art exists, the present invention seeks to be to provide a kind of halide-free low-smoke fireproof cable, fire resistance is good, high temperature resistance, and cost is low, and fail safe is high.

To achieve these goals, the present invention realizes by the following technical solutions: it comprises conductor, insulating barrier, packed layer, twining package tape lapping layer, inner covering, steel-tape armouring layer and oversheath, and described insulating barrier is wrapped in outside conductor; Described packed layer is wrapped in the skin of insulating barrier; Described twining package tape lapping layer is wrapped in outside packed layer, and described twining package tape lapping layer is enclosed with inner covering, steel-tape armouring layer and oversheath outward successively.

As preferably, described conductor is copper conductor or other metals conducted electricity very well.

As preferably, described insulating barrier is rock wool layer.

As preferably, described packed layer is for scribbling cenosphere.

As preferably, described oversheath scribbles aluminium oxide.

As preferably, in described oversheath, be also provided with flame-retardant layer.

As preferably, described flame-retardant layer is high-performance refractory fiber.

Fire resistance of the present invention is good, high temperature resistance, and cost is low, and fail safe is high.

Accompanying drawing explanation

The present invention is described in detail below in conjunction with the drawings and specific embodiments;

Fig. 1 is structural representation of the present invention;

Embodiment

The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.

With reference to Fig. 1, this embodiment is by the following technical solutions: a kind of halide-free low-smoke fireproof cable, comprise conductor 1, insulating barrier 2, packed layer 3, twining package tape lapping layer 4, inner covering 5, steel-tape armouring layer 6 and oversheath 7, described insulating barrier 2 is wrapped in outside conductor 1; Described packed layer 3 is wrapped in the skin of insulating barrier 2; Described twining package tape lapping layer 4 is wrapped in outside packed layer 3, and described twining package tape lapping layer 4 is outer is enclosed with inner covering 5, steel-tape armouring layer 6 and oversheath 7 successively.

It should be noted that described conductor 1 is copper conductor or other metals conducted electricity very well.

It should be noted that described insulating barrier 2 is rock wool layer.

It should be noted that described packed layer 3 is for scribbling cenosphere.

It should be noted that and described oversheath 7 scribbles aluminium oxide.

It should be noted that in described oversheath 7 and be also provided with flame-retardant layer.

It should be noted that described flame-retardant layer is high-performance refractory fiber.

The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims

1. a halide-free low-smoke fireproof cable, comprise conductor (1), insulating barrier (2), packed layer (3), twining package tape lapping layer (4), inner covering (5), steel-tape armouring layer (6) and oversheath (7), it is characterized in that, described insulating barrier (2) is wrapped in outside conductor (1); Described packed layer (3) is wrapped in the skin of insulating barrier (2); Described twining package tape lapping layer (4) is wrapped in packed layer (3) outward, and described twining package tape lapping layer (4) is enclosed with inner covering (5), steel-tape armouring layer (6) and oversheath (7) outward successively.

2. the halide-free low-smoke fireproof cable according to claims 1, is characterized in that, described conductor (1) is copper conductor or other metals conducted electricity very well.

3. the halide-free low-smoke fireproof cable according to claims 1, is characterized in that, described insulating barrier (2) is rock wool layer.

4. the halide-free low-smoke fireproof cable according to claims 1, is characterized in that, described packed layer (3) is for scribbling cenosphere.

5. the halide-free low-smoke fireproof cable according to claims 1, is characterized in that, (7) scribble aluminium oxide to described oversheath.

6. the halide-free low-smoke fireproof cable according to claims 1, is characterized in that, described oversheath is also provided with flame-retardant layer in (7).

7. the halide-free low-smoke fireproof cable according to claims 1, is characterized in that, described flame-retardant layer is high-performance refractory fiber.