CN104575820A

CN104575820A - Novel fire-resistant power cable with polyvinyl chloride insulating sheath

Info

Publication number: CN104575820A
Application number: CN201310490519.8A
Authority: CN
Inventors: 荆彦铭
Original assignee: NINGBO OCEAN CABLE CO Ltd
Current assignee: NINGBO OCEAN CABLE CO Ltd
Priority date: 2013-10-18
Filing date: 2013-10-18
Publication date: 2015-04-29

Abstract

The invention discloses a novel fire-resistant power cable with a polyvinyl chloride insulating sheath. The power cable includes conductors, insulating layers, a filling layer, a warping tape lapping layer, an inner liner, a steel tape armoring layer and an outer sheath, wherein each insulating layer wraps a conductor; the filling layer wraps the insulating layers; the lapping layer formed by the warping tape wraps the filling layer; the wrapping tape lapping layer is wrapped by the inner liner, the steel tape armoring layer and the outer sheath in sequence. The novel fire-resistant power cable provided by the invention is good in fire resistance, resistant to high temperature, low in cost and high in safety.

Description

A kind of novel polyvinyl chloride insulation sheath fireproof power cable

Technical field

The present invention relates to a kind of novel polyvinyl chloride insulation sheath fireproof power cable.

Background technology

Novel polyvinyl chloride insulation sheath fireproof power 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 novel polyvinyl chloride insulation sheath fireproof power 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 it is polyvinyl chloride insulation sheath that described twining package tape lapping layer is enclosed with oversheath described in inner covering, steel-tape armouring layer and oversheath outward successively.

As preferably, described conductor is copper conductor or aluminium conductor.

As preferably, described insulating barrier is PVC insulating barrier.

As preferably, described packed layer is asbestos layer.

As preferably, described oversheath inner surface is provided with silicon dioxide or titanium dioxide.

As preferably, described inner covering is mineral wool.

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 novel polyvinyl chloride insulation sheath fireproof power 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 being enclosed with oversheath 7 described in inner covering 5, steel-tape armouring layer 6 and oversheath 7 outside described twining package tape lapping layer 4 is successively polyvinyl chloride insulation sheath.

It should be noted that described conductor 1 is copper conductor or aluminium conductor.

It should be noted that described insulating barrier 2 is PVC insulating barrier.

It should be noted that described packed layer 3 is asbestos layer.

It should be noted that described oversheath 7 inner surface is provided with silicon dioxide or titanium dioxide.

It should be noted that described inner covering 5 is mineral wool.

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 novel polyvinyl chloride insulation sheath fireproof power 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, and described oversheath (7) is polyvinyl chloride insulation sheath.

2. the novel polyvinyl chloride insulation sheath fireproof power cable according to claims 1, is characterized in that, described conductor (1) is copper conductor or aluminium conductor.

3. the novel polyvinyl chloride insulation sheath fireproof power cable according to claims 1, is characterized in that, described insulating barrier (2) is PVC insulating barrier.

4. the novel polyvinyl chloride insulation sheath fireproof power cable according to claims 1, it is characterized in that, described packed layer (3) is asbestos layer.

5. the novel polyvinyl chloride insulation sheath fireproof power cable according to claims 1, it is characterized in that, described oversheath (7) inner surface is provided with silicon dioxide or titanium dioxide.

6. the novel polyvinyl chloride insulation sheath fireproof power cable according to claims 1, it is characterized in that, described inner covering (5) is mineral wool.