CN206546738U - A kind of four core pattern fire-resistant fire-resisting cables - Google Patents

Abstract

The utility model discloses a kind of four core patterns fire-resistant fire-resisting cable, including conductor, the conductor has four, and the square centre for being arranged in external shielding layer of conductor, refractory insulating layer is provided with outside the conductor, and internal shield is provided between refractory insulating layer and conductor, space outside the refractory insulating layer is filled with filler, and filler is fixed on the inside of external shielding layer by twining package tape multilayer after cladding winding, the outside of the external shielding layer is disposed with inner liner from inside to outside, protective metal shell and oversheath, the surface of the protective metal shell is evenly arranged with embossing, the outside of the oversheath is uniformly coated with equadag coating.The utility model is using protective metal shell and in the equally distributed embossing of surface roll compacting of protective metal shell, make equipment that there is good bendability, while protective metal shell can use a variety of different metal materials to be made, so that difference according to demand, suitable material is selected, the applicability of cable is improved.

Description

A kind of four core pattern fire-resistant fire-resisting cables

Technical field

The utility model is related to cable machinery technical field, specially a kind of four core patterns fire-resistant fire-resisting cable.

Background technology

At present, with the fast development of China's economy, the fast development of Process of Urbanization Construction, the laying of infrastructure is city It is main in construction, and cable is as the main connecting line of information or power transmission, it is even more mostly important, but transmission After the cable long-time use of electricity, it may appear that insulating properties are reduced or the phenomenon such as breakage caused by extraneous factor, or even meeting There is the generation fire that catches fire, certain requirement thus there has been to the flame resistance and fire resistance of cable, so as to apply in height The ground relevant with fire-extinguishing and lifesaving with fire safety such as layer building, underground railway, undergrond street, large-scale power station and important industrial and mining enterprises Side.

Utility model content

The purpose of this utility model is to provide a kind of four core patterns fire-resistant fire-resisting cable, to solve to carry in above-mentioned background technology The problem of going out, is had an advantageous effect in that:With good bendability, higher insulating properties and resistance to elevated temperatures and it is difficult Aging and Halogen, low cigarette, nontoxic, fire-retardant performance.

To achieve the above object, the utility model provides following technical scheme：A kind of four core pattern fire-resistant fire-resisting cables, including Conductor, the conductor has is provided with fire resisting outside four, and the square centre for being arranged in external shielding layer of conductor, the conductor The space outside internal shield, the refractory insulating layer is provided between insulating barrier, and refractory insulating layer and conductor to fill out Thing is filled, and filler is fixed on the inside of external shielding layer, the outside of the external shielding layer by twining package tape multilayer after cladding winding Inner liner, protective metal shell and oversheath are disposed with from inside to outside, and the surface of the protective metal shell is evenly arranged with embossing, institute The outside for stating oversheath is uniformly coated with equadag coating.

It is preferred that, the inner liner and oversheath are made by halogen-free anti-flaming polyolefin material.

It is preferred that, the external shielding layer and internal shield use semi-conducting material.

It is preferred that, the twining package tape is alkali-free glass silk ribbon.

It is preferred that, the protective metal shell is in be coated on the circular tube structure that is welded on core, and protective metal shell can be used Copper strips, aluminium strip or stainless steel band are made.

It is preferred that, the refractory insulating layer uses inorganic mineral insulation band.

It is preferred that, the filler uses inorganic fire-retarded gasket for packing.

It is preferred that, the conductor, which is that copper conductor is stranded, to press structure or stranded non-presses structure.

Compared with prior art, the beneficial effects of the utility model are：The equipment is using protective metal shell and in protective metal shell The equally distributed embossing of surface roll compacting, make equipment that there is good bendability, while protective metal shell can use a variety of differences Metal material be made so that difference according to demand, select suitable material, improve the applicability of cable, and use cloud Master tape, with higher insulating properties and resistance to elevated temperatures and non-aging, service life is long, and inorganic fire-retarded gasket for packing can be very well Fire-retardant raising equipment anti-flammability, equipment oversheath use halogen-free anti-flaming polyolefin material, with Halogen, low cigarette, it is nontoxic, resistance The performance of combustion, can prevent burning of the cable under flame condition, be significantly reduced fire damage and provide peace to personal safety All risk insurance hinders.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the structural representation of the utility model protective metal shell；

Fig. 3 is another structural representation of the present utility model.

In figure：1- inner liners；2- external shielding layers；3- twining package tapes；4- equadag coatings；5- oversheaths；6- protective metal shells；7- Refractory insulating layer；8- internal shields；9- fillers；10- conductors；11- embossing.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belongs to the scope of the utility model protection.

Embodiment 1：

Refer to Fig. 1 and Fig. 2, a kind of embodiment that the utility model is provided：A kind of four core pattern fire-resistant fire-resisting cables, including Conductor 10, conductor 10 have be provided with outside four, and the square centre for being arranged in external shielding layer 2 of conductor 10, conductor 10 it is resistance to Fiery insulating barrier 7, and the filling of the space outside internal shield 8, refractory insulating layer 7 is provided between refractory insulating layer 7 and conductor 10 There is filler 9, and filler 9 is fixed on the inside of external shielding layer 2 by the multilayer of twining package tape 3 after cladding winding, external shielding layer 2 Outside is disposed with inner liner 1, protective metal shell 6 and oversheath 5 from inside to outside, and the surface of protective metal shell 6, which is evenly arranged with, rolls Line 11, the outside of oversheath 5 is uniformly coated with equadag coating 4, and inner liner 1 and oversheath 5 are by halogen-free anti-flaming polyolefin material It is made, external shielding layer 2 and internal shield 8 use semi-conducting material to be made and (such as add carbon black by base-material of polyethylene), twining package tape 3 For alkali-free glass silk ribbon, protective metal shell 6 is in the circular tube structure for being coated on and being welded on core, and protective metal shell 6 can use copper Band, aluminium strip or stainless steel band are made, and refractory insulating layer 7 uses inorganic mineral insulation band, predominantly mica tape, and filler 9 is used Inorganic fire-retarded gasket for packing, predominantly glass fiber rope or asbestos cord, conductor 10 be copper conductor it is stranded press structure or It is stranded non-to press structure.

When the utility model is used：The equadag coating 4 that device external is set, for detecting whether oversheath 5 is injured, if electric The breakage of cable oversheath 5 can be used directly universal meter and detect, oversheath 5 uses halogen-free anti-flaming polyolefin material, with Halogen, low Cigarette, nontoxic, fire-retardant performance, can prevent burning of the cable under flame condition, and protective metal shell 6 is generally copper strips, aluminium strip or not Rust steel band is coated on into the circular tube structure being welded on cable core, and main application copper or aluminium, stainless steel apply less, and metal is protected Set 6 is provided with the structure of embossing 11, and preferably, filler 9 is that inorganic fire-retarded gasket for packing is mainly used to the bending property of the structure of embossing 11 Glass fiber rope or asbestos cord, can be effective fire-retardant, and refractory insulating layer 7 is inorganic mineral insulation band, predominantly mica tape, tool Have a higher insulating properties and resistance to elevated temperatures, conductor 10 be copper conductor it is stranded press structure or it is stranded it is non-press structure, mainly For circle, internal shield 8 and external shielding layer 2 can be effectively reduced in cable and interfered between core and external disturbance.

Embodiment 2：Referring to Fig. 3, a kind of embodiment that the utility model is provided：A kind of four core pattern fire-resistant fire-resisting cables, Including conductor 10, conductor 10 has four, and the square centre for being arranged in external shielding layer 2 of conductor 10, and the outside of conductor 10 is set Have and internal shield 8 is provided between refractory insulating layer 7, and refractory insulating layer 7 and conductor 10, the space outside refractory insulating layer 7 Filled with filler 9, and filler 9 is fixed on the inside of external shielding layer 2, external shield by the multilayer of twining package tape 3 after cladding winding The outside of layer 2 is disposed with inner liner 1, protective metal shell 6 and oversheath 5 from inside to outside, and the outside of oversheath 5 is uniformly coated with Equadag coating 4, inner liner 1 and oversheath 5 are made by halogen-free anti-flaming polyolefin material, and external shielding layer 2 and internal shield 8 are adopted With semi-conducting material (such as adding carbon black by base-material of polyethylene), twining package tape 3 is alkali-free glass silk ribbon, and protective metal shell 6 is in be coated on The circular tube structure being welded on core, and protective metal shell 6 can be made of copper strips, aluminium strip or stainless steel band, refractory insulating layer 7 Using inorganic mineral insulation band, predominantly mica tape, filler 9 uses inorganic fire-retarded gasket for packing, predominantly glass fiber rope, Can also be asbestos cord, conductor 10, which is that copper conductor is stranded, to press structure or stranded non-press structure.

When the utility model is used：The equadag coating 4 that device external is set, for detecting whether oversheath 5 is injured, if electric The breakage of cable oversheath 5 can be used directly universal meter and detect, oversheath 5 uses halogen-free anti-flaming polyolefin material, with Halogen, low Cigarette, nontoxic, fire-retardant performance, can prevent burning of the cable under flame condition, and protective metal shell 6 is generally copper strips, aluminium strip or not Rust steel band is coated on into the circular tube structure being welded on cable core, and main application copper or aluminium, stainless steel apply less, and metal is protected Set 6 can be smooth not embossing form, and filler 9 is that inorganic fire-retarded gasket for packing mainly uses glass fiber rope or asbestos Rope, can be effective fire-retardant, and refractory insulating layer 7 is inorganic mineral insulation band, predominantly mica tape, with higher insulating properties and Resistance to elevated temperatures, conductor 10 be copper conductor it is stranded press structure or it is stranded it is non-press structure, predominantly sector, effective compression is led Gap between body 10, to reduce the outside diameter of cable, and then reduces cost, 2 layers of internal shield 8 and external shield can effectively reduce cable Interfered between middle core and external disturbance.

It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation Involved claim.

Claims (8)

1. a kind of four core patterns fire-resistant fire-resisting cable, including conductor (10), it is characterised in that：The conductor (10) has four, and leads Refractory insulating layer (7) is provided with outside the square centre for being arranged in external shielding layer (2) of body (10), the conductor (10), and Internal shield (8), the outside space filling of the refractory insulating layer (7) are provided between refractory insulating layer (7) and conductor (10) There is filler (9), and filler (9) is fixed on the inside of external shielding layer (2), institute by twining package tape (3) multilayer after cladding winding The outside for stating external shielding layer (2) is disposed with inner liner (1), protective metal shell (6) and oversheath (5), the gold from inside to outside The surface of category sheath (6) is evenly arranged with embossing (11), and the outside of the oversheath (5) is uniformly coated with equadag coating (4).

2. a kind of four core patterns fire-resistant fire-resisting cable according to claim 1, it is characterised in that：The inner liner (1) and outer Sheath (5) is made by halogen-free anti-flaming polyolefin material.

3. a kind of four core patterns fire-resistant fire-resisting cable according to claim 1, it is characterised in that：The external shielding layer (2) and Internal shield (8) uses semi-conducting material.

4. a kind of four core patterns fire-resistant fire-resisting cable according to claim 1, it is characterised in that：The twining package tape (3) is nothing Alkali glass silk ribbon.

5. a kind of four core patterns fire-resistant fire-resisting cable according to claim 1, it is characterised in that：The protective metal shell (6) is in The circular tube structure being welded on core is coated on, and protective metal shell (6) can be made of copper strips, aluminium strip or stainless steel band.

6. a kind of four core patterns fire-resistant fire-resisting cable according to claim 1, it is characterised in that：The refractory insulating layer (7) Using inorganic mineral insulation band.

7. a kind of four core patterns fire-resistant fire-resisting cable according to claim 1, it is characterised in that：The filler (9) uses Inorganic fire-retarded gasket for packing.

8. a kind of four core patterns fire-resistant fire-resisting cable according to claim 1, it is characterised in that：The conductor (10) is led for copper Body is stranded to press structure or stranded non-presses structure.