CN109903881A - A kind of four core pattern fire-resistant fire-resisting cables - Google Patents

Abstract

The invention discloses a kind of four core pattern fire-resistant fire-resisting cables, including conductor, there are four the conductors, 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, gap 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 liner layer 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 present invention uses protective metal shell and the equally distributed embossing of surface roll compacting in protective metal shell, make equipment that there is good bendability, while protective metal shell can be used a variety of different metal materials and be made, thus 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 present invention relates to cable machinery technical field, specially a kind of four core pattern fire-resistant fire-resisting cables.

Background technique

Currently, with the rapid development of our country's economy, the fast development of Process of Urbanization Construction, the laying of infrastructure is city It is the most main in construction, and main connecting line of the cable as information or power transmission, it is even more mostly important, however transmit After the cable long-time use of electricity, it may appear that insulation performance reduction or because caused by extraneous factor phenomena such as breakage, or even meeting There is kindling and fire occurs, thus there has been certain requirement to the flame resistance of cable and fire resistance, to apply in height Layer building, underground railway, undergrond street, large-scale power station and important industrial and mining enterprises etc. are relatedly with fire safety and fire-extinguishing and lifesaving Side.

Summary of the invention

It is mentioned above in the background art to solve the purpose of the present invention is to provide a kind of four core pattern fire-resistant fire-resisting cables Problem, possessed beneficial effect is: having good bendability, higher insulation performance and high temperature resistance and non-aging With Halogen, low cigarette, nontoxic, fire-retardant performance.

To achieve the above object, it the invention provides the following technical scheme: a kind of four core pattern fire-resistant fire-resisting cables, including leads Body, there are four the conductors, and the square centre for being arranged in external shielding layer of conductor, and it is exhausted to be provided with fire resisting outside the conductor Edge layer, and internal shield is provided between refractory insulating layer and conductor, the gap outside the refractory insulating layer is filled with filling Object, 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 certainly It is disposed with liner layer, protective metal shell and oversheath from inside to outside, the surface of the protective metal shell is evenly arranged with embossing, described The outside of oversheath is uniformly coated with equadag coating.

Preferably, the liner layer and oversheath are made of halogen-free anti-flaming polyolefin material.

Preferably, the external shielding layer and internal shield are all made of semiconductor material (adding carbon black by base-material of polyethylene) system At.

Preferably, the twining package tape is alkali-free glass silk ribbon.

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

Preferably, the refractory insulating layer uses inorganic mineral insulation band, predominantly mica tape.

Preferably, the filler uses inorganic fire-retarded gasket for packing, predominantly glass fiber rope, is also possible to asbestos Rope.

Preferably, the conductor be copper conductor it is twisted press structure or be twisted non-press structure.

Compared with prior art, the beneficial effects of the present invention are: the equipment uses protective metal shell and the table in protective metal shell Roll compacting equally distributed embossing in face makes equipment have good bendability, while a variety of different gold can be used in protective metal shell Belong to material to be made, so that difference according to demand, selects suitable material, improve the applicability of cable, and use mica tape, Insulation performance and high temperature resistance with higher and non-aging, long service life, inorganic fire-retarded gasket for packing can hinder well Combustion improves the anti-flammability of equipment, and equipment oversheath uses halogen-free anti-flaming polyolefin material, has Halogen, low cigarette, nontoxic, fire-retardant Performance can prevent burning of the cable under flame condition, be significantly reduced fire damage and provide safe guarantor to personal safety Barrier.

Detailed description of the invention

Fig. 1 is the structural diagram of the present invention；

Fig. 2 is the structural schematic diagram of protective metal shell of the present invention；

Fig. 3 is another structural schematic diagram of the invention.

In figure: 1- liner layer；2- external shielding layer；3- twining package tape；4- equadag coating；5- oversheath；6- protective metal shell；7- is resistance to Fiery insulating layer；8- internal shield；9- filler；10- conductor；11- embossing.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

Embodiment 1:

Fig. 1 and Fig. 2 are please referred to, a kind of embodiment provided by the invention: a kind of four core pattern fire-resistant fire-resisting cables, including conductor 10, there are four conductors 10, and the square centre for being arranged in external shielding layer 2 of conductor 10, and it is exhausted to be provided with fire resisting outside conductor 10 Edge layer 7, and internal shield 8 is provided between refractory insulating layer 7 and conductor 10, the gap outside refractory insulating layer 7 is filled out Object 9 is filled, and filler 9 is fixed on the inside of external shielding layer 2, the outside of external shielding layer 2 by 3 multilayer of twining package tape after cladding winding It is disposed with liner layer 1, protective metal shell 6 and oversheath 5 from inside to outside, the surface of protective metal shell 6 is evenly arranged with embossing 11, The outside of oversheath 5 is uniformly coated with equadag coating 4, and liner layer 1 and oversheath 5 are made of halogen-free anti-flaming polyolefin material, External shielding layer 2 and internal shield 8 are all made of semiconductor material and are made and (add carbon black by base-material of polyethylene), and twining package tape 3 is alkali-free Glass tape, protective metal shell 6 are in be coated on the circular tube structure being welded on core, and protective metal shell 6 can use copper strips, aluminium strip Or stainless steel band is made, refractory insulating layer 7 uses inorganic mineral insulation band, predominantly mica tape, and filler 9 is using inorganic fire-retarded Gasket for packing, predominantly glass fiber rope are also possible to asbestos cord, and conductor 10, which is that copper conductor is twisted, to press structure or be twisted non-tight Laminated structure.

When the present invention uses: the equadag coating 4 of device external setting, it is whether injured for detecting oversheath 5, if outside cable 5 breakage of sheath can be used directly multimeter detection and go out, oversheath 5 use halogen-free anti-flaming polyolefin material, have 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 stainless steel Band is coated on the circular tube structure being welded into cable core, mainly applies copper or aluminium, and stainless steel is using less, and protective metal shell 6 It is provided with 11 structure of embossing, the bending property of 11 structure of embossing is preferable, and filler 9 is that inorganic fire-retarded gasket for packing mainly uses glass Silk fiber rope or asbestos cord, can be effective fire-retardant, and refractory insulating layer 7 is inorganic mineral insulation band, predominantly mica tape, have compared with High insulation performance and high temperature resistance, conductor 10 be copper conductor it is twisted press structure or be twisted it is non-press structure, it is predominantly round Shape, internal shield 8 and external shielding layer 2 can effectively reduce to be interfered with each other between core and external disturbance in cable.

Embodiment 2: referring to Fig. 3, a kind of embodiment provided by the invention: a kind of four core pattern fire-resistant fire-resisting cables, including Conductor 10, there are four conductors 10, and the square centre for being arranged in external shielding layer 2 of conductor 10, is provided with outside conductor 10 resistance to Fiery insulating layer 7, and internal shield 8 is provided between refractory insulating layer 7 and conductor 10, the gap filling outside refractory insulating layer 7 There is filler 9, and filler 9 is fixed on the inside of external shielding layer 2 by 3 multilayer of twining package tape after cladding winding, external shielding layer 2 Outside is disposed with liner layer 1, protective metal shell 6 and oversheath 5 from inside to outside, and the outside of oversheath 5 is uniformly coated with graphite Coating 4, liner layer 1 and oversheath 5 are made of halogen-free anti-flaming polyolefin material, and external shielding layer 2 and internal shield 8 are all made of half Conductor material (adding carbon black by base-material of polyethylene) is made, and twining package tape 3 is alkali-free glass silk ribbon, and protective metal shell 6 is online in cladding 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 is adopted With inorganic mineral insulation band, predominantly mica tape, filler 9 uses inorganic fire-retarded gasket for packing, predominantly glass fiber rope, Can be asbestos cord, conductor 10 be copper conductor it is twisted press structure or be twisted non-press structure.

When the present invention uses: the equadag coating 4 of device external setting, it is whether injured for detecting oversheath 5, if outside cable 5 breakage of sheath can be used directly multimeter detection and go out, oversheath 5 use halogen-free anti-flaming polyolefin material, have 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 stainless steel Band is coated on the circular tube structure being welded into cable core, mainly applies copper or aluminium, and stainless steel is using less, and protective metal shell 6 It can be smooth not embossing form, filler 9 is that inorganic fire-retarded gasket for packing mainly uses glass fiber rope or asbestos cord, energy Effective fire-retardant, refractory insulating layer 7 is inorganic mineral insulation band, predominantly mica tape, insulation performance with higher and Nai Gao Warm nature energy, conductor 10 be copper conductor it is twisted press structure or be twisted it is non-press structure, predominantly fan-shaped, effective compressed conductor 10 Between gap, to reduce the outside diameter of cable, and then reduce cost, internal shield 8 and 2 layers of external shield can effectively reduce cable middle line It is interfered with each other between core and external disturbance.

It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention 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 present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.

Claims (8)

1. a kind of four core pattern fire-resistant fire-resisting cables, including conductor (10), it is characterised in that: there are four the conductors (10), and leads The square centre for being arranged in external shielding layer (2) of body (10), the conductor (10) is external to be provided with refractory insulating layer (7), and It is provided between refractory insulating layer (7) and conductor (10) internal shield (8), the external gap filling of the refractory insulating layer (7) Have 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 liner layer (1), protective metal shell (6) and oversheath (5), the gold from inside to outside The surface for belonging to 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 liner layer (1) and outer Sheath (5) is made of 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), which is all made of semiconductor material (adding carbon black by base-material of polyethylene) and forms, to be made.

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 It is 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.

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, predominantly mica tape.

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, predominantly glass fiber rope, are also possible to asbestos cord.

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 twisted to press structure or is twisted and non-press structure.