CN205984311U - Novel fireproof electric cable - Google Patents

Abstract

The utility model relates to a novel fireproof electric cable, including a cable core, the cable core is made by the transposition of several sinle silks, the sinle silk contains aluminum alloy conductor, the outside crowded bao youtao vitrification low smoke and zero halogen polyolefin fire resistance and insulation layer of aluminum alloy conductor, cable core gap adopts does not have the steamed low fire -retardant filling layer of cigarette, the cable core outside is in proper order around wrapping the compound area of the fire -resistant fire prevention silica gel of pottery vitrification, metal flame retardant coating and the fire -resistant outer jacket of pottery vitrification low smoke and zero halogen polyolefin, the utility model discloses rational in infrastructure, manufacturing convenience, energy -conservation is effectual, fire behavior is excellent, the antidetonation is able to bear or endure to spray and the environmental protection to be one kind.

Description

A kind of Novel fireproof cable

Technical field

This utility model is related to field of cable technology, particularly to a kind of fire-resisting cable of the production of employing new structure.

Background technology

Skyscraper of today has become a lot of citizen's routine works, the important place of life, but skyscraper fire extinguishing But become an international fire-fighting difficult problem, skyscraper once catches fire after all, and building can be closed by dense smoke quickly, form " chimney effect Should ", more than 800 degrees Celsius of flue gas runs into any article all can make it burn, simultaneously strong smog and its bring fierce Burning, will have a strong impact on the resident's escape being confined in floor.

The equipment such as common building in the layer fire fighting device, elevator, illumination are all used to what guiding resident escape during fire was saved oneself, But big fire can lead to electric wire, cable to burn, after stand-by power supply consumes, these equipment will be at a standstill；And electric wire, cable Catch fire, not only can accelerate spreading of the intensity of a fire, also will discharge substantial amounts of poison, toxic smoke；If electric wire is exposed powered, escape in fire Resident also have Danger Electric shock risk.Series of problems not only affects resident's escape and necessary salvage operation, also can delay fire-fighting people The valuable rescue period of member.

According to statistics, the frequency of electrical fire and caused loss all belong to first of all kinds of fire.According to analysis, wherein By circuit cause account for electrical fire more than half, even if so reasonably select cable be avoid electrical fire or occur fire Calamity also can the seriality powered of Reliable guarantee fire-fighting equipment, and then put out a fire as early as possible, reduce the important step of loss.

Cable (including fire-retardant, low-smoke low-halogen, low smoke and zero halogen and its corresponding fire-resisting cable) traditional in the market exists Catch fire, burnt or transship for a long time smog and harmful gass when insulating impaired all can exist, all cannot meet fire protection requirement.Polychlorostyrene There are substantial amounts of CO, CO2 and chloride in the smog that ethylene insulated cable produces when being burned, also can contain in the smog of other cables There are bromide, fluoride and hydrogen sulfide, these materials are very big to the harm of people.

In addition the electrician currently used for power transmission adopts copper material mostly with conductive material, but because domestic copper resource is tight Lack, have 70% about copper material to need import, and climb up and up so that the cost of investment of conductive material with World Copper valency More and more higher, also excessive to the resource consumption of copper material.China is a country for the richness lean copper of aluminum, domestic have substantial amounts of bauxite resource but But it is not fully utilized, be great waste.Country advocates and builds a conservation-minded society now, in industry also encourage adopt with " aluminum section copper ".

Because electrician is low with the conductivity of hard state fine aluminium wire material, yield strength is low, and deformation of creep amount is big, and percentage elongation is relatively Less, during for power transmission, can be because there is the larger deformation of creep, thus causing joint after long-term operation or current overload Loosen, contact resistance increases, and produces safety problem.Therefore, pure aluminum wire is all abandoned in a lot of application scenarios.

To solve the defect problem of fine aluminium at present in electrician's conductive material field Aluminium Alloys in Common Use material, " aluminum closes to realize The purpose of Jin Dynasty copper ", thus saving copper material consumption.

Utility model content

The applicant is directed to the shortcoming in above-mentioned existing production technology, provides a kind of Novel fireproof cable, so that its tool Have the characteristics that good energy-conserving effect, fire protecting performance are excellent, antidetonation is resistance to spray and environmental protection.

The technical scheme that this utility model is adopted is as follows：

A kind of Novel fireproof cable, including cable core, described cable core is made by twisting by several cores, and described core comprises aluminum and closes Golden conductor, is extruded with ceramic low-smoke halogen-free polyolefin refractory insulating layer, described cable core gap is using no outside aluminium alloy conductor Halogen low-smoke and flame retardant packed layer, wrapped ceramic fire resisting fireproof silica gel composite band, metal fireproof layer and pottery successively outside described cable core Porcelain low-smoke halogen-free polyolefin fire resisting outer jacket.

Its further technical scheme is：

Further, aluminium alloy conductor adopts molded line lay configuration；

Further, metal fireproof layer adopts aluminum or aluminum alloy material.

The beneficial effects of the utility model are as follows：

(1) conductor adopts aluminum alloy materials as the conductor of Novel fireproof cable, can preferably replace copper conductor cable, and Solve electrician's fine aluminium conductor oxidizable, the problems such as creep-resistant property is poor, and material cost is relatively low, economic performance is excellent；

(2) conductor adopts molded line stranded conductor structure, and conductor compacting coefficient is high, can reduce conductor diameter 5%, saves each work Sequence raw material usage amount more than 10%；

(3) insulation adopts ceramic low-smoke halogen-free polyolefin refractory insulation material, can effectively avoid common fireproof cable exhausted Edge is using puncturing that mica tape leads to because of making moist；

(4) oversheath adopts ceramic low-smoke halogen-free polyolefin fire resisting protective cover material, has extraordinary heat-insulated fire insulation effect, The safety of cable power transmission in case of fire can be improved.

This utility model is rational in infrastructure, easily manufactured, be that a kind of good energy-conserving effect, fire protecting performance be excellent, the resistance to spray of antidetonation and The Novel fireproof cable of environmental protection.

Brief description

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

Wherein：1st, aluminium alloy conductor；2nd, insulating barrier；3rd, packed layer；4th, composite band；5th, metal fireproof layer；6th, outer jacket.

Specific embodiment

Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described.

As shown in figure 1, the present embodiment includes cable core, described cable core is made by twisting by several cores, and described core comprises aluminum Alloy conductor 1 it is preferable that conductor 1 adopt aluminum alloy materials replace copper conductor cable, solve electrician's fine aluminium conductor oxidizable, The problems such as creep-resistant property difference, and material cost is relatively low, economic performance is excellent；Conductor 1 adopts molded line stranded conductor to tie simultaneously Structure, conductor compacting coefficient is high, can reduce conductor diameter 5%, saves each operation raw material usage amount more than 10%；Aluminium alloy conductor It is extruded with ceramic low-smoke halogen-free polyolefin refractory insulating layer 2 outside 1, can effectively avoid common fireproof cable insulation to adopt cloud What master tape led to because of making moist punctures；Described cable core gap adopts LSOH anti-flaming packed layer 3, outside described cable core successively Wrapped ceramic fire resisting fireproof silica gel composite band 4, metal fireproof layer 5 and ceramic low-smoke halogen-free polyolefin fire resisting outer jacket 6, outward Sheath 6 adopts ceramic low-smoke halogen-free polyolefin fire resisting protective cover material, has extraordinary heat-insulated fire insulation effect, can improve cable and exist The safety of power transmission under fire condition.

Above description is to explanation of the present utility model, is not the restriction to utility model, and this utility model is limited Scope, referring to claim, within protection domain of the present utility model, can make any type of modification.

Claims (3)

1. a kind of Novel fireproof cable it is characterised in that：Including cable core, described cable core is made by twisting by several cores, described line Core comprises to be extruded with ceramic low-smoke halogen-free polyolefin refractory insulating layer (2) outside aluminium alloy conductor (1), aluminium alloy conductor (1), Described cable core gap adopts LSOH anti-flaming packed layer (3), wrapped ceramic fire resisting fireproof silica gel successively outside described cable core Composite band (4), metal fireproof layer (5) and ceramic low-smoke halogen-free polyolefin fire resisting outer jacket (6).

2. as claimed in claim 1 a kind of Novel fireproof cable it is characterised in that：Aluminium alloy conductor (1) adopts molded line stranded Structure.

3. as claimed in claim 1 a kind of Novel fireproof cable it is characterised in that：Metal fireproof layer (5) adopts aluminum or aluminum to close Golden material.