CN208985746U - A kind of high fire resistance buried cable - Google Patents

Abstract

The utility model discloses a kind of high fire resistance buried cables, its structure includes wrapping layer, cable core, wirerope, filled layer and aramid fiber rope, the bosom position of the wrapping layer is provided with wirerope, it is uniformly distributed on the outside of the wirerope and is provided with cable core, the surrounding winding of the cable core is provided with aramid fiber rope, filled layer has been filled between the cable core and wrapping layer, the wrapping layer includes the oversheath set gradually from outside to inside, metal armor layers, flame retardant coating and external insulation layer, the flame retardant coating is smeared on the outer surface of external insulation layer, the cable core includes conductor, the outside package of the conductor is equipped with copper foil shielding layer, the outside package of the copper foil shielding layer is equipped with inner insulating layer, the outside package of the inner insulating layer is equipped with mica tape.This kind of utility model is simple and reasonable for structure, has the characteristics that superpower stretching resistance, twisting resistance and superpower fire-proof high-temperature resistant, and can satisfy the demand of underfloor cabling.

Description

A kind of high fire resistance buried cable

Technical field

The utility model relates to field of cable technology, specially a kind of high fire resistance buried cable.

Background technique

Buried cable, i.e. cable are compared with common overhead line, and Yin Qichang is embedded in underground, therefore also known as buried cable.Cable It is made of the conductor outsourcing insulation and protective layer of one or more mutually insulated, for transmitting electric power or information from one To the conducting wire at another place.

In order to ensure the safety of data, people are desirable to after fire occurs, can after have time enough in whole network A possibility that steaming again all data before paralysis, and they are transferred to safe place, data are lost is preferably minimized.In cable In the standard of line, there is a kind of fire-protection standard, referred to as " route integrality " standard, its target are that cable still can in the scene of a fire It keeps route unimpeded, allows power supply and information still to be able to normal transmission, therefore the cable for meeting Integrity requirement is also claimed Since the application environment of buried cable is more severe need to have superpower stretching resistance, twisting resistance, anti-high machine for fire prevention cable The features such as tool stress, Water-proof and oil-proof, antiultraviolet, fire-retardant, resist chemical, high temperature resistant, current general fireproof cable all reach Less than can either prevent fires and can underfloor cabling demand, have much room for improvement.Therefore, aiming at the shortcomings in the prior art, it is proposed that A kind of high fire resistance buried cable.

Utility model content

The purpose of this utility model is to provide a kind of high fire resistance buried cables, solve proposed in background technique Problem.

To achieve the above object, the utility model provides the following technical solutions:

A kind of high fire resistance buried cable, structure include that wrapping layer, cable core, wirerope, filled layer and aramid fiber are fine Dimension rope, the bosom position of the wrapping layer is provided with wirerope, is uniformly distributed on the outside of the wirerope and is provided with cable The surrounding winding of core, the cable core is provided with aramid fiber rope, is filled between the cable core and wrapping layer There is filled layer, the wrapping layer includes the oversheath set gradually from outside to inside, metal armor layers, flame retardant coating and external insulation Layer, the flame retardant coating are smeared on the outer surface of external insulation layer, and the cable core includes conductor, the outside of the conductor Package is equipped with copper foil shielding layer, and the outside package of the copper foil shielding layer is equipped with inner insulating layer, and the outside of the inner insulating layer is wrapped It is wrapped with mica tape.

As a kind of preferred embodiment of the utility model, the filled layer is high water absorption packing layer.

As a kind of preferred embodiment of the utility model, the flame retardant coating is refractory heat-insulating heat preserving ceramic coating Layer.

As a kind of preferred embodiment of the utility model, the oversheath and inner insulating layer are rubber layer.

Compared with prior art, the utility model has the beneficial effects that

1. a kind of high fire resistance buried cable makes cable have superpower tension by being equipped with wirerope and aramid fiber rope Power, twisting resistance are pulled when being applicable in underfloor cabling, by being equipped with flame retardant coating and mica tape, cable can be made to have super Strong fire-proof high-temperature resistant feature.

2. a kind of high fire resistance buried cable can play waterproof work by setting high water absorption filler for filled layer With after avoiding wrapping layer broken, steam is entered in cable and impacted to cable core, can by being equipped with metal armor layers To play a protective role to cable core, avoid inside cable core damaged.

Detailed description of the invention

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model Sign, objects and advantages will become more apparent upon:

Fig. 1 is a kind of schematic diagram of internal structure figure of high fire resistance buried cable of the utility model；

Fig. 2 is a kind of cable core structural schematic diagram of high fire resistance buried cable of the utility model；

In figure: wrapping layer -1, cable core -2, wirerope -3, filled layer -4, aramid fiber rope -5, oversheath -6, metal Armor -7, flame retardant coating -8, external insulation layer -9, conductor -10, copper foil shielding layer -11, inner insulating layer -12, mica tape -13.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

It please refers to Fig. 1-2 the utility model and a kind of technical solution is provided:

A kind of high fire resistance buried cable, structure include wrapping layer 1, cable core 2, wirerope 3, filled layer 4 and virtue Synthetic fibre cordage 5, the bosom position of the wrapping layer 1 are provided with wirerope 3, and the outside of the wirerope 3 is evenly arranged with The surrounding winding of cable core 2, the cable core 2 is provided with aramid fiber rope 5, between the cable core 2 and wrapping layer 1 It is filled with filled layer 4, the wrapping layer 1 includes oversheath 6, the metal armor layers 7, fire-retardant painting set gradually from outside to inside Layer 8 and external insulation layer 9, the flame retardant coating 8 are smeared on the outer surface of external insulation layer 9, and the cable core 2 includes conductor 10, the outside package of the conductor 10 is equipped with copper foil shielding layer 11, and the outside package of the copper foil shielding layer 11 is equipped with interior insulation The outside package of layer 12, the inner insulating layer 12 is equipped with mica tape 13.

As a preferred technical solution in the present embodiment, the filled layer 4 is high water absorption packing layer, can be played anti- Water effect, after avoiding wrapping layer 1 broken, steam is entered in cable and is impacted to cable core 2.

As a preferred technical solution in the present embodiment, the flame retardant coating 8 is refractory heat-insulating heat preserving ceramic coating Layer, can make cable have the characteristics that superpower fire-proof high-temperature resistant.

As a preferred technical solution in the present embodiment, the oversheath 6 and inner insulating layer 12 are rubber layer, can To play insulating effect, prevent from leaking electricity.

It should be noted that a kind of high fire resistance buried cable of the utility model is in use, firstly the need of resistance to entire height Fire buried cable has the understanding in a structure, could be more efficiently carried out when in use using firstly, this kind high fire resistance Buried cable makes cable have superpower stretching resistance, antitorque by being equipped with wirerope 3 and aramid fiber rope 5 in the inside of wrapping layer 1 Power is pulled when being applicable in underfloor cabling, and wherein aramid fiber rope is wrapped in the outside of cable core, and cable core is consolidated It is scheduled on the outside of wirerope, by being equipped with flame retardant coating 8 and mica tape 13, Double-layer flame-retardant can make cable have superpower fire prevention High temperature resistant feature can play waterproof action, avoid wrapping layer 1 broken by setting high water absorption packing layer for filled layer 4 Afterwards, steam is entered in cable and is impacted to cable core 2, can be to electricity by being equipped with metal armor layers 7 in wrapping layer Cable core 2 plays a protective role, and avoids inside cable core 2 damaged, to influence the function of cable.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims All changes are embraced therein.It should not treat any reference in the claims as limiting related right It is required that.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (4)

1. a kind of high fire resistance buried cable, structure includes wrapping layer (1), cable core (2), wirerope (3), filled layer (4) and aramid fiber rope (5), it is characterised in that: the bosom position of the wrapping layer (1) is provided with wirerope (3), described It is uniformly distributed and is provided with cable core (2) on the outside of wirerope (3), the surrounding winding of the cable core (2) is provided with aramid fiber Cordage (5) has been filled with filled layer (4) between the cable core (2) and wrapping layer (1), and the wrapping layer (1) includes Oversheath (6), metal armor layers (7), flame retardant coating (8) and the external insulation layer (9) set gradually from outside to inside, the fire-retardant painting Layer (8) is smeared on the outer surface of external insulation layer (9), and the cable core (2) includes conductor (10), the conductor (10) Outside package is equipped with copper foil shielding layer (11), and the outside package of the copper foil shielding layer (11) is equipped with inner insulating layer (12), described The outside package of inner insulating layer (12) is equipped with mica tape (13).

2. a kind of high fire resistance buried cable according to claim 1, it is characterised in that: the filled layer (4) is high inhales Water packing layer.

3. a kind of high fire resistance buried cable according to claim 1, it is characterised in that: the flame retardant coating (8) is resistance to The hot heat preserving ceramic dope layer of fire screen.

4. a kind of high fire resistance buried cable according to claim 1, it is characterised in that: the oversheath (6) and it is interior absolutely Edge layer (12) is rubber layer.