CN205900121U - High fire -resistant flexible mineral insulation wrinkle copper jacketed cable - Google Patents

Abstract

The utility model relates to a high fire -resistant flexible mineral insulation wrinkle copper jacketed cable, including conductor, sheath and inoxidizing coating, the conductor is equipped with six, and every solitary conductor comprises wire, insulating layer and insulation protective layer, is equipped with the aramid fiber mesh grid between six conductors, is equipped with the filler between six conductors and the aramid fiber mesh grid, six conductors outward still the cladding have anticorrosive plastic layer, the cladding outward of anticorrosive plastic layer has the fire -resistant isolation layer of mineral substance, the fire -retardant area of several is established to the cover on the fire -resistant isolation layer of mineral substance, the sheath includes wrinkle copper sheath and oversheath, and oversheath crowded package outward has the inoxidizing coating, also overlaps on the inoxidizing coating and establishes the fire -retardant area of several, this cable structure is simple, under the prerequisite that does not influence the cable performance, through the improvement to cable internal structure, makes it have good mechanical properties, long service life, and low cost guarantees phenomenons such as cable nothing in long -term operation environment opens circuit, short circuit.

Description

A kind of high fire resisting flexible mineral insulation wrinkle copper sheath cable

Technical field

This utility model is related to a kind of cable and in particular to a kind of high fire resisting flexible mineral insulation wrinkle copper sheath cable.

Background technology

Mineral insulated cable has gone up the production of a century, applicating history abroad, also has nearly three ten years at home, its The performance practical application after nearly ten thousand projects proves, such as National Stadium (Bird's Nest), Grand National Theatre, the Chinese Central Television (CCTV), The state keys such as Capital Airport new construction, Dongguan grand theater, Oriental Art Center or local key project, but because mineral are exhausted Edge cable product structure never updates, and manufacturing process falls behind complicated.Using real core copper bar, sheath is drawing copper tubes to its conductor, because This, cable is in rigidity, and insulant adopts the easy moisture absorption of magnesium oxide (mgo) powder, brings much to the making of installation and terminal Difficulty, and mineral insulated cable limited by processing technology, and cross-sectional area of conductor is little, makes length short；And yttw installs and relatively needs Strongly professional, in special environment, impact runs electric conductivity, high fire resisting flexible mineral insulation wrinkle copper sheath cable (ng- Yttw) rely on the superiority of itself, have the trend progressively replacing mineral insulated cable；Its main cause is: flexible mineral insulation Cable is to be made up of copper stranded conductor, mineral compound insulation and mineral compound sheath, and it adopts flexible structure, main material All using inorganic material, compensate for that structure is hard, easy firing, the defect such as poisonous, and have that some other cables do not have excellent Point, such as: high fire resisting, current-carrying capacity is big, impact resistance voltage, mechanical resistant are damaged, Halogen is nontoxic, explosion-proof, waterproof, corrosion-resistant, life-span length, The features such as safety, resistant to overload, high temperature resistant, low cost, particularly badly laying in environment, it is little to have a distortion radius, super waterproof, Dynastat is corroded, and traditional mineral insulated cable develops to flexible mineral insulation cable direction.

Utility model content

Technical problem to be solved in the utility model is, the shortcoming overcoming prior art, provides a kind of high fire resisting flexible Mineral insulation wrinkle copper sheath cable, this construction of cable is simple, on the premise of not affecting cable performance, by cable inside Structure improvement so as to have good mechanical performance, long service life, with low cost it is ensured that cable is in long-term operation environment The middle phenomenon such as no breaking, short-circuit.

In order to solve above technical problem, this utility model provides a kind of high fire resisting flexible mineral insulation wrinkle copper sheath electricity Cable, including conductor, sheath and overcoat, wherein:

Conductor is provided with six, and each single conductor is made up of wire, insulating barrier and insulating protective layer, and six conductors are with it In centered on a conductor, on remaining conductor its circumferencial direction uniform, between six conductors, be provided with aramid fiber mesh grid, and by Six conductor braidings are fixed by aramid fiber mesh grid, are provided with implant between six conductors and aramid fiber mesh grid, and six It is also wrapped on anti-rot plastic layer, anti-rot plastic layer is coated with mineral fire resisting sealing coat, mineral fire resisting is isolated outside individual conductor Sheathed several inhibiting tapes on layer；

Sheath includes wrinkle copper sheath and oversheath, and wrinkle copper sheath is set in outside mineral fire resisting sealing coat, wrinkle copper Sheath is set in outside the mineral fire resisting sealing coat being provided with inhibiting tape, is extruded with overcoat outside oversheath, also sheathed on overcoat Several inhibiting tapes.

The technical scheme that this utility model limits further is:

Further, in aforementioned high fire resisting flexible mineral insulation wrinkle copper sheath cable, oversheath adopts low smoke, zero halogen to hinder Combustion polyolefine material is made；Implant is glass cord.

In aforementioned high fire resisting flexible mineral insulation wrinkle copper sheath cable, insulating barrier is the mixing of magnesium oxide and silicon dioxide Nitride layer is made, and overcoat is Halogen silicon porcelain cement.

In aforementioned high fire resisting flexible mineral insulation wrinkle copper sheath cable, inhibiting tape on overcoat and the resistance to fire screen of mineral Inhibiting tape on absciss layer is spaced apart.

In aforementioned high fire resisting flexible mineral insulation wrinkle copper sheath cable, wire is made by twisting using many copper free wires.

The beneficial effects of the utility model are:

Six conductors are had, six conductors centered on one of conductor, justify by uniform its of remaining conductor in this utility model The sectional area of conductor is which increased on circumferential direction, is provided with aramid fiber mesh grid between six conductors, and is compiled by aramid fiber Six conductor braidings are fixed by knitmesh, effectively prevent twisting it is ensured that cable is in transportation, conductor will not move, will not Abrasion occurs it is ensured that normal run.

It is also filled with glass cord between six conductors and aramid fiber mesh grid in this utility model to fix further Living six conductors it is ensured that normally running when using, improving efficiency.

Employ inhibiting tape in this utility model, burning can be blocked after unexpected burning and extend it is ensured that during ignition of cable Only one section of burning, without extending, prevents from catching fire because local cable catches fire to cause comprehensively, reduces loss, reduces cost, and prevents Inhibiting tape on sheath is spaced apart with the inhibiting tape on mineral fire resisting sealing coat, further shorten the area of burning.

This utility model its adopt flexible structure, compensate for that structure is hard, easy firing, the defect such as poisonous, and have Other cables do not have the advantage that, such as: high fire resisting, current-carrying capacity are greatly, impact resistance voltage, mechanical resistant are damaged, Halogen is nontoxic, explosion-proof, The features such as waterproof, corrosion-resistant, life-span length, safety, resistant to overload, high temperature resistant, low cost, particularly badly laying in environment, tool There is distortion radius little, Dynastat corrosion.

Brief description

Fig. 1 is the structural representation of this utility model embodiment；

In figure: 1- wire, 2- overcoat, 3- insulating barrier, 4- insulating protective layer, 5- aramid fiber mesh grid, 6- is anti-corrosion to be moulded The bed of material, 7- mineral fire resisting sealing coat, 8- inhibiting tape, 9- wrinkle copper sheath, 10- oversheath.

Specific embodiment

Embodiment 1

A kind of high fire resisting flexible mineral insulation wrinkle copper sheath cable that the present embodiment provides, structure is as shown in figure 1, include Conductor, sheath and overcoat 2, overcoat 2 is Halogen silicon porcelain cement, wherein:

Conductor is provided with six, and each single conductor is made up of wire 1, insulating barrier 3 and insulating protective layer 4, and wire adopts Many copper free wires are made by twisting, and insulating barrier 3 is made up of the mixture layer of magnesium oxide and silicon dioxide, and insulating protective layer 4 adopts Glass fiber, six conductors centered on one of conductor, on remaining conductor its circumferencial direction uniform, between six conductors It is provided with aramid fiber mesh grid 5, and by aramid fiber mesh grid 5, six conductor braidings is fixed, six conductors are fine with aramid fiber It is provided with implant glass cord between dimension mesh grid 5, be also wrapped on anti-rot plastic layer 6 outside six conductors, outside anti-rot plastic layer 6 It is coated with mineral fire resisting sealing coat 7, sheathed several inhibiting tapes 8, the inhibiting tape 8 on overcoat 2 on mineral fire resisting sealing coat 7 Spaced apart with the inhibiting tape 8 on mineral fire resisting sealing coat 7；

Sheath includes wrinkle copper sheath 9 and oversheath 10, and oversheath 10 is made using halogen-free and low-smoke flame-retardant polyolefin material, Wrinkle copper sheath 9 is set in outside the mineral fire resisting sealing coat 7 being provided with inhibiting tape 8, the outer sheathed oversheath 10 of wrinkle copper sheath 9, Oversheath outer 10 is extruded with overcoat 2, also sheathed several inhibiting tape 8 on overcoat 2.

In addition to the implementation, this utility model can also have other embodiment.All employing equivalents or equivalent change Change the technical scheme of formation, all fall within the protection domain of this utility model requirement.

Claims (5)

1. a kind of high fire resisting flexible mineral insulation wrinkle copper sheath cable it is characterised in that: include conductor, sheath and overcoat (2), wherein:

Described conductor is provided with six, and each single conductor is made up of wire (1), insulating barrier (3) and insulating protective layer (4), and six Individual conductor, centered on one of conductor, on remaining conductor its circumferencial direction uniform, is provided with aramid fiber between six conductors Mesh grid (5), and the braiding of six conductors being fixed by aramid fiber mesh grid (5), six conductors and aramid fiber mesh grid (5) it is provided with implant between, outside described six conductors, be also wrapped on anti-rot plastic layer (6), described anti-rot plastic layer (6) outer cladding There is mineral fire resisting sealing coat (7), the upper sheathed several inhibiting tapes (8) of described mineral fire resisting sealing coat (7)；

Described sheath includes wrinkle copper sheath (9) and oversheath (10), and described wrinkle copper sheath (9) is set in and is provided with inhibiting tape (8) mineral fire resisting sealing coat (7) outward, described wrinkle copper sheath (9) sheathed described oversheath (10) outward, described oversheath (10) are extruded with overcoat (2) outward, also sheathed several inhibiting tape (8) on described overcoat (2).

2. high fire resisting flexible mineral insulation wrinkle copper sheath cable according to claim 1 it is characterised in that: described outer shield Set (10) is made using halogen-free and low-smoke flame-retardant polyolefin material；Described implant is glass cord.

3. high fire resisting flexible mineral insulation wrinkle copper sheath cable according to claim 1 it is characterised in that: described is exhausted Edge layer (3) is made up of the mixture layer of magnesium oxide and silicon dioxide；Described overcoat (2) is Halogen silicon porcelain cement.

4. high fire resisting flexible mineral insulation wrinkle copper sheath cable according to claim 1 it is characterised in that: described protection Inhibiting tape (8) on layer (2) is spaced apart with the inhibiting tape (8) on mineral fire resisting sealing coat (7).

5. high fire resisting flexible mineral insulation wrinkle copper sheath cable according to claim 1 it is characterised in that: described wire It is made by twisting using many copper free wires.