CN206471147U - A kind of aluminium alloy conductor midium voltage cable - Google Patents

Abstract

The utility model belongs to field of power transmission, more particularly to a kind of aluminium alloy conductor midium voltage cable.It has longer self-bearing capacity, more preferable decay resistance more economical from heavy and light, price relative to copper core cable（It is more preferable than aluminium）, more excellent bending property, compared with fine aluminium, more preferable creep resistance, bigger tensile strength, more preferable elongation percentage and pliability, low elasticity.It includes 3 insulated wire cores and protection outer layer, and mineral matter packed layer is provided between 3 insulated wire cores.It is triangle-frame shape reinforcer also to include section, and 3 insulated wire cores are placed between the adjacent frame boom of triangle-frame shape reinforcer.Outer layer is protected to include fire resisting separation layer, aluminium alloy ripple armor, inner sheath and oversheath successively from inside to outside；Some reinforcements are outwards radially provided with inner sheath, and reinforcement is not connected with oversheath；Filler, reinforcement and the filled parcel of inner sheath are also filled between inner sheath and oversheath.

Description

A kind of aluminium alloy conductor midium voltage cable

Technical field

The utility model belongs to field of power transmission, more particularly to a kind of aluminium alloy conductor midium voltage cable.

Background technology

Conventional cable conductor has two kinds of materials, respectively copper, aluminium, compared with copper aluminium material matter, and this alloy cable is from leading Electric rate, current-carrying capacity, deadweight bearing capacity, corrosion resistance, pliability, armouring characteristic, economy all have an enormous advantage.In recent years As China's power industry flourishes, materials demand is growing day by day based on cable, and China is used to manufacture every year according to statistics The copper consumption of cable reaches 5,000,000 tons, but the current copper ore resource storage of China is about 260,000,000 tons, less than 6 years use times, So China depends on import to refined copper, but China possesses abundant bauxite resource, and our countries are also constantly being explored It is not enough to solve copper resource for the thought of copper with aluminium.

In addition, in cable construction, the anti-pressure ability of common midium voltage cable is relatively weak, brought not to laying for cable Just, construction speed is have impact on, common midium voltage cable is in directly buried installation in addition, due to the resistance to compression and anticollision of cable during use Ability is hit, the internal structure of cable easily suffers damage.

The content of the invention

There is provided a kind of aluminium alloy conductor midium voltage cable, its phase aiming at the defect that prior art is present for the utility model There is longer self-bearing capacity, more preferable decay resistance more economical from heavy and light, price for copper core cable（Than aluminium more It is good）, more excellent bending property, compared with fine aluminium, more preferable creep resistance, bigger tensile strength, more preferable elongation percentage and soft Toughness, low elasticity.

To achieve the above object, the utility model provides a kind of aluminium alloy conductor midium voltage cable, including 3 insulated wire cores With protection outer layer.

Characterized in that, being provided with mineral matter packed layer between 3 insulated wire cores；The every insulated wire cores by it is inner to Include conductor, conductor shield, insulating barrier, insulation screen and copper strip shielding layer that albronze is made successively outside.

It is triangle-frame shape reinforcer also to include section, and the triangle-frame shape reinforcer has 3 frame arms, adjacent frame Angle between arm is 120 °, and 3 insulated wire cores are placed between the adjacent frame boom of triangle-frame shape reinforcer.

The protection outer layer includes fire resisting separation layer, aluminium alloy ripple armor, inner sheath and outer shield successively from inside to outside Set；Some reinforcements are outwards radially provided with the inner sheath, and reinforcement is not connected with oversheath；In inner sheath and outside Filler, reinforcement and the filled parcel of inner sheath are also filled between sheath.

As a kind of preferred scheme of the present utility model, the conductor shield, insulating barrier and insulation screen are by three layers The mode of co-extrusion is processed.

As another preferred scheme of the present utility model, described mineral matter packed layer uses the ore deposit that mineral matter rope is constituted Material packed layer.The mineral matter rope includes a rope matter matrix, and the rope matter matrix process has mineral fibre.

As another preferred scheme of the present utility model, described fire resisting separation layer uses the pottery that ceramic silicon rubber is made Porcelain silastic-layer.

As another preferred scheme of the present utility model, described oversheath appearance wall is distributed adding for multigroup outwardly convex Strengthening tendons.

As another preferred scheme of the present utility model, described reinforcement is made using high-abrasive material.

The utility model beneficial effect compared with prior art.

Aluminium alloy ripple armouring of the present utility model uses seamless welding technique, possesses good sealing characteristics, waterproof is oozed Saturating excellent；Aluminium alloy ripple armouring has stronger compression strength, is provided simultaneously with armoured preform；Ripple sheathed structure makes it Possesses bending property, the requirement of bending radius when meeting cable laying.The utility model is strengthened due to being provided with inner sheath Muscle, therefore filler is not only saved without the very closely knit bulk strength with regard to cable can be improved is filled to obtain when filling filler, and And process is simpler.

Fire resisting explosive-proof grade of the present utility model and electric property, mechanical performance, environmental resistance are further lifted.

It is triangle-frame shape reinforcer that the utility model, which also includes section, and the triangle-frame shape reinforcer has 3 frames Angle between boom, adjacent frame boom is 120 °, and 3 cable cores are placed in the adjacent frame boom of triangle-frame shape reinforcer Between, therefore cable core of the present utility model protected by triangle-frame shape reinforcer, even if during by external pressure or shock Fragile, easy construction is not allowed yet.

The utility model oversheath appearance is provided with reinforcement, can effectively protect cable not to be scraped off, meanwhile, save former material Material, it is easy to which transport is with installing.

The utility model has longer self-bearing capacity, more economical from heavy and light, price relative to copper core cable, preferably Decay resistance（It is more preferable than aluminium）, more excellent bending property, compared with fine aluminium, more preferable creep resistance, bigger tension is strong Degree, more preferable elongation percentage and pliability, low elasticity.

Brief description of the drawings

The utility model is described further with reference to the accompanying drawings and detailed description.The utility model protection domain It is not only limited to the statement of herein below.

Fig. 1 is the utility model overall structure diagram.

Fig. 2 is the utility model aluminium alloy ripple armor vertical structure schematic diagram.

In figure, 1 it is copper strip shielding layer, 2 is conductor shield, 3 is insulating barrier, 4 is insulation screen, 5 is conductor, 6 is Reinforcement, 7 be triangle-frame shape reinforcer, 8 be fire resisting separation layer, 9 be inner sheath, 10 be aluminium alloy ripple armor, 11 be Oversheath, 12 are mineral matter packed layer.

Embodiment

As shown in Figure 1-2, the utility model includes 3 insulated wire cores and protection outer layer, and the insulated wire cores are from inside to outside Include conductor 5, conductor shield 2, insulating barrier 3, insulation screen 4 and copper strip shielding layer 1 that albronze is made successively；3 Mineral matter packed layer 12 is provided between root insulated wire cores.It is triangle-frame shape reinforcer 7, the triangle-frame shape also to include section There is reinforcer 7 angle between 3 frame arms, adjacent frame boom to be 120 °, and 3 insulated wire cores are placed in triangle-frame Between the adjacent frame boom of shape reinforcer 7.

The protection outer layer surrounds outside 3 insulated wire cores, by triangle-frame shape reinforcer 7 and mineral matter packed layer 12 Wrap in the lump in it.The protection outer layer includes fire resisting separation layer 8, aluminium alloy ripple armor 10, interior shield successively from inside to outside Set 9, oversheath 11；Some reinforcements 6 are outwards radially provided with the inner sheath 9, and reinforcement 6 does not connect with oversheath 11 Connect；Filler, reinforcement 6 and the filled parcel of inner sheath 9 are also filled between inner sheath 9 and oversheath 11.Due to protecting inside Reinforcement 6 is provided with set 9, therefore when filling filler without filling to obtain the very closely knit bulk strength with regard to cable can be improved, Filler is not only saved, and process is simpler.

Preferably, the conductor shield 2, insulating barrier 3 and insulation screen 4 are processed by three-layer co-extruded mode.

Preferably, the mineral matter packed layer 12 that described mineral matter packed layer 12 is constituted using mineral matter rope.The mineral Matter rope includes a rope matter matrix, and the rope matter matrix process has mineral fibre.

Preferably, the ceramic silastic-layer that described fire resisting separation layer 8 is made of ceramic silicon rubber.

Preferably, the described appearance wall of oversheath 11 is distributed the reinforcement of multigroup outwardly convex.

Preferably, described reinforcement is made using high-abrasive material.

Mineral matter rope of the present utility model is, for raw material, to be melted in furnace cupola or other tank furnaces with natural rock and mineral etc. Change, blow by force in certain pressure, be quenched into threadiness, rope matter matrix is then made.Mineral matter rope is resistant to 1250~1400 DEG C of high temperature. Mineral matter rope of the present utility model has excellent heat-insulating property.And itself category inanimate matter silicate fiber, it is incombustible.This Utility model is filled between cable core and fire resisting separation layer 8 using mineral matter rope as packed layer, and mineral matter rope has can not The performance such as burning and thermal insulation high temperature resistant so that the interior heat that cable core is produced in transmission of electricity dissipates in packed layer, prevents interior heat Cause fire by igniting or even burning located at outside protective case.

The ceramic silastic-layer that the fire resisting separation layer 8 is also made of ceramic silicon rubber.Ceramic silastic material is normal Temperature it is lower it possess the good fundamental characteristics of silicon rubber elastic, with nontoxic, tasteless, high-low temperature resistant, resistance to ozone aging, weather-proof old Change, excellent electrical insulation capability, also possess the good processing characteristics of common high temperature silicone rubber, in 40 degrees below zero to above freezing 200 Degree left and right can keep flexible cable state.In flame invasion and attack, when temperature is up to more than 300 degree, it can be converted to by original soft condition The sponge ceramic body of hardness, produces hole inside fireproof jointing sheath after being hardened, be conducive to insulation, and such sponge ceramic body has aobvious The fire resisting of work and the effect of barrier high temperature, so that machinery change does not occur for the internal structure for being effectively protected cable and electrical property becomes Change.

It is understood that specifically described above with respect to of the present utility model, be merely to illustrate the utility model and not The technical scheme described by the utility model embodiment is limited to, it will be understood by those within the art that, still can be with The utility model is modified or equivalent substitution, to reach identical technique effect；As long as satisfaction uses needs, all in this reality Within new protection domain.

Claims (6)

1. a kind of aluminium alloy conductor midium voltage cable, including 3 insulated wire cores and protection outer layer；Characterized in that, described often thoroughly do away with Edge core includes conductor, conductor shield, insulating barrier, insulation screen and copper strips screen that albronze is made successively from inside to outside Cover layer；Mineral matter packed layer is provided between 3 insulated wire cores；

It is triangle-frame shape reinforcer also to include section, and the triangle-frame shape reinforcer has 3 frame arms, adjacent frame boom it Between angle be 120 °, 3 insulated wire cores are placed between the adjacent frame boom of triangle-frame shape reinforcer；

The protection outer layer includes fire resisting separation layer, aluminium alloy ripple armor, inner sheath and oversheath successively from inside to outside；Institute State and some reinforcements are outwards radially provided with inner sheath, and reinforcement is not connected with oversheath；In inner sheath and oversheath Between be also filled with filler, reinforcement and the filled parcel of inner sheath.

2. a kind of aluminium alloy conductor midium voltage cable according to claim 1, it is characterised in that：The conductor shield, absolutely Edge layer and insulation screen are processed by three-layer co-extruded mode.

3. a kind of aluminium alloy conductor midium voltage cable according to claim 1, it is characterised in that：Described mineral matter packed layer The mineral matter packed layer constituted using mineral matter rope.

4. a kind of aluminium alloy conductor midium voltage cable according to claim 1, it is characterised in that：Described fire resisting separation layer is adopted The ceramic silastic-layer being made of ceramic silicon rubber.

5. a kind of aluminium alloy conductor midium voltage cable according to claim 1, it is characterised in that：Described oversheath appearance wall It is distributed the reinforcement of multigroup outwardly convex.

6. a kind of aluminium alloy conductor midium voltage cable according to claim 5, it is characterised in that：Described reinforcement uses resistance to Mill material is made.