CN104200904A - Fireproof, power-saving and durable wire cable and manufacturing method thereof - Google Patents

Abstract

The invention relates to a fireproof, power-saving and durable wire cable and a manufacturing method thereof. As the fireproof and flame-retardant performances of an existing cable are relatively weak, the wire cable is very easy to burn down to cause short circuit if being burnt continuously. The fireproof, power-saving and durable wire cable comprises multiple conductive line cores, and is characterized in that a fireproof layer is arranged outside the conductive line cores, an insulating shielding layer is arranged outside the fireproof layer, and a filling material is filled with gaps among the conductive line cores; a semi-conductive water-blocking tape, an inner liner layer, a copper wire and copper strip combined shielding layer, a semi-conductive water-blocking buffer strip, an aluminum-plastic composite strip and an outer sheath are arranged outside the insulating shielding layer in sequence. The fireproof, power-saving and durable wire cable is nontoxic, environment-friendly, overlong in service life, and high in safety.

Description

A kind of fire prevention, power saving, durable electric wire and manufacture method thereof

Technical field

Patent of the present invention relates to a kind of electric wire, especially fire prevention, power saving, durable electric wire and manufacture method thereof.

Background technology

At present, domestic architectural engineering development rapidly, requirement to electric equipment is also more and more higher, because the electric fire causing frequently occurs, the fire particularly causing due to electric wire reason occupies sizable ratio, electric wire market type is various, but the performance of fire protection flame retarding is all a little less than relative thin, burnt if continued, electric wire is easy to be burnt and causes short circuit, thereby cause larger tragedy to occur, anxious a kind of environmental type safety cable to be developed is to meet the needs of human kind sustainable development, this is the development trend of countries in the world, also be the global people's common heartfelt wishes.

Summary of the invention

The object of patent of the present invention is that a kind of fire prevention, waterproof, nontoxic, environmental protection, safe will be provided, and is suitable for still maintaining under specific disaster scenario the non-toxic and non-pollution green safety cable of energising---fire prevention, power saving, durable electric wire and manufacture method thereof.

Technical scheme of the present invention is: fire prevention, power saving, durable electric wire and manufacture method thereof, comprise some conductor wire cores, it is characterized in that described conductor wire core arranges flame retardant coating outward, flame retardant coating arranges insulation screen outward, between the gap of each conductor wire core, filler is set; Described insulation screen arranges semiconductive waterstop, inner covering, copper wire copper strips combination screen, semiconductive block water buffer strip, aluminium-plastic tape, oversheath outward according to this.

Described filler is glass fiber filler, and a ceramic silicone rubber insulation layer is also set between described conductor wire core and flame retardant coating.

Described insulation screen is that PE material is made, and the high energy electron line that passes through electron accelerator is to insulation screen irradiation.

Beneficial effect of the present invention is:

1. improve fire prevention, safe effect, can not spread, burn and produce hydrogen halides pernicious gas, also had the shielding harness of short-circuit protection simultaneously, reached the designing requirement of environmental type safety cable.Life-span of the present invention is long, good and the energy saving of fire protection flame retarding effect, design principle is: use special fire proofing material and technique, special cable sheath material and production technology, increase cable life (100 years), prevent that cable is aging and cause energy loss, preventing the reason of fire of various factors, to reach fire prevention, power saving, durable function; , match with building life meanwhile, fill the domestic gaps;

2. conductor wire core has adopted one deck mica tape outward, and external application PE material polyethylene does insulating barrier, then passes through physical crosslinking; flue gas after burning is very little; there is no smoke toxicity, to human body, without injury, its maximum characteristic is exactly the in the situation that of fire, high temperature; can burn till hard carbonization duricrust protective layer; also there is good insulating properties, can play well isolated flame, the effect of fire-proof insulation simultaneously; thereby ensure under fire condition electric power, communication unimpeded.

3. utilize the high energy electron line of electron accelerator to carry out irradiation to wire cable insulating layer and protective layer; make the former relatively independent chain structure of plastic body become the tridimensional network that is connected, is connected layer by layer with layer; thereby mechanical and physical performance, thermal endurance and the useful life of electric wire product are greatly improved.

4. a ceramic silicone rubber insulation layer is also set between conductor wire core and flame retardant coating, have softness, Halogen, nontoxic, tasteless, human body, natural environment are had no adverse effects, the flue gas after burning is very little, there is no smoke toxicity, to human body without injury.

5. between the gap of conduction fibre core, glass fiber filler is set can also can plays effect of fire-proof insulation, draw materials conveniently, cost is lower.

6. outer jacket adopts environment protection type polyurethane elastomer (TPE), has fire-retardant, soft, the wear-resisting and resistance to characteristic of subduing.

Brief description of the drawings

Fig. 1 is the structure cutaway view with three cable inner cores of the present invention.

Fig. 2 is the structural representation of the another kind of cable inner core of the present invention.

In figure: 1. conductor wire core 2. ceramic silicone rubber insulation layer 3. mica flame retardant coating 4. glass fiber belt 5. insulation screens; 6. the semiconductive waterstop 7. inner covering 8. copper wire copper strips combinations screen 9. semiconductives buffer strip 10. aluminium-plastic tape 11. oversheath 12. glass fiber fillers that block water.

Embodiment

Fire prevention as shown in Figure 1, power saving, durable electric wire and manufacture method thereof, comprise three tangent conductor wire cores 1 between two, conductor wire core outer 1 arranges a ceramic silicone rubber insulation layer 2, the outer flame retardant coating that arranges of ceramic silicone rubber insulation layer 2, flame retardant coating arranges insulation screen 5 outward, and glass fiber filler 12 is set between the gap of each conductor wire core 1; Described insulation screen 5 is outer arranges semiconductive waterstop 6, inner covering 7, copper wire copper strips combination screen 8, semiconductive block water buffer strip 9, aluminium-plastic tape 10, oversheath 11 according to this.Flame retardant coating is two-layer, and internal layer is mica flame retardant coating 3, and skin is glass fiber belt 4.Conductor wire core 1 is formed by concentric type is stranded by the some identical soft round copper wires of diameter.Copper wire copper strips combination screen is dredged around outer one deck copper strips wrapped composition by one deck copper wire.Oversheath 11 is ceramic halogen-free flameproof fireprotection layer or environment protection type polyurethane elastomer material.

The technical scheme of patent of the present invention completes like this: cable is made up of jointly block water buffer strip 9, plastic-aluminum combined mask tape 10, ceramic halogen-free flameproof fireprotection layer 11 of conductor wire core 1, ceramic silicone rubber insulation layer 2, mica flame retardant coating 3, glass fiber belt 4, insulation screen 5, semiconductive waterstop 6, inner covering 7, copper wire copper strips combination screen 8, semiconductive.The conductor wire core 1 of cable is the stranded conductor being formed by concentric layer-stepping strand system by many soft single round copper wire.

Semiconductive waterstop 6 is overlapping wrapped in the outside of insulation screen 5, and low smoke and zero halogen inner covering 7 is extruded in outside.Copper wire copper strips combination screen 8 is to dredge the outside around inner covering 7 by many soft round copper wires, more oppositely a wrapped copper strips has been tightened, and semi-conductive buffer water-blocking band 9 is wrapped in the outside of copper wire copper strips combination screen 8, plays buffering resistance effect.Or the vertical outside that wrap in semi-conductive buffer water-blocking band 9 wrapped with plastic-aluminum combined mask tape 10 again, outermost extrudes one deck ceramic halogen-free flameproof fireprotection layer again and makes protective layer, and this is a kind of novel ceramic halogen-free flameproof fireproof.Meet fire and can form rapidly hard housing, the similar effect of playing fire compartment wall, has good heat insulation effect, and the object that protection is burnt is not damaged.

The sectional area of the conductor wire core 1 of patent of the present invention is 1.5～70mm ², geometry is round, is well-regulated by the identical soft round copper wire of some diameters, concentric type, and each level forms according to different direction strand systems in succession.Insulated wire cores can be single core, can be also three cores, four-core, and geometry is fixed, and stability is high, on cable can curvature impact very little.

The flame retardant coating 2 of patent of the present invention is to form with the special high-quality Mica tape of fire-resistant safety cable, has good fire resistant flame retardant effect, and still can keep good dielectric strength under ignition temperature.Insulation screen 5 adopts PYJBJ to make, not only high temperature resistant and have and do not prolong combustion and can not produce the feature of hydrogen halide.Cable just can not discharge pernicious gas and smog, unlikely causing " secondary disaster " in the time of burning like this.

The copper wire copper strips combination screen 8 of patent of the present invention is by one deck copper wire, the wrapped composition of one deck copper strips, and screen cross section and master core cross section configure according to a certain percentage, by 16,25,35,50...... plurality of specifications.The shielded type cable of this structure can anti-electromagnetic induction, and imperfect earth and power line conducted interference, reduce inductance, prevents the features such as induced electromotive force is excessive.Screen had both played and had suppressed the externally effect of transmitting of electromagnetic wave, can be used as again the passage of short circuit current, can play the protective effect of neutral core.

The double effects that the semiconductive waterstop 6 of patent of the present invention has semiconductive, blocks water, outer overlapping wrapped at insulation shield layer 5, as waterproof construction.Select the waterstop of 0.5 millimeters thick, meet after water when it, can be expanded to rapidly the height of tens millimeters, thereby reach good block-water effect.There is semiconductive, the semi-conductive buffer water-blocking band 9 of the triple function that cushions, blocks water, overlapping wrappedly have the same principle that blocks water outside copper wire copper strips combination screen 8, also has the effect of buffering.After this band water-swellable, that copper wire copper strips combination screen can be blocked up is watertight.Effectively prevent the intrusion of moisture, moisture.

Patent of the present invention adopts aluminium-plastic tape composite sheath, has not only played the effect of electromagnetic shielding but also played radially moistureproof effect.

Patent of the present invention is used ceramic halogen-free flameproof fireproof, adopts fire-resisting ceramic silicone rubber insulating material, nonpoisonous and tasteless at normal temperatures, has good flexibility and elasticity, and good processability.Under high temperature and flame ablation more than 500 DEG C, organic principle is can be in a short period of time ablated changes into hard ceramic-like material, form the good isolation layer of one deck, stop burning away of flame, and the ablation time is longer, temperature is higher, and hard effect is more obvious, can reach the fire-resistant environment of 1200～1500 DEG C.Residual without any ashes after being burnt simultaneously.Really play the object of good fire-fighting, fireproofing function and safety and environmental protection.

Be illustrated in figure 2 the another kind of scheme of the present invention, it is that with the technical scheme difference of Fig. 1 conductor wire core 1 arranges a fire-resistant isinglass belt 3, the outer insulation screen 5 making of PE material polyethylene that arranges of insulating barrier mica tape 3 outward.The conductor wire core 1 of cable is by the single or many stranded conductors that soft single round copper wire forms by concentric layer-stepping strand system.PE material polyethylene does insulating barrier, and this is a kind of novel PE halogen-free flameproof fireproof.Meet fire and can form rapidly hard carbonization housing, form the function of similar fire compartment wall, have good heat insulation effect, the object that protection is burnt is not damaged.

Utilize the high energy electron line of electron accelerator to carry out irradiation to wire cable insulating layer and protective layer; make the insulating barrier of cable become 3 D stereo network structure from linear molecule structure; form the three-dimensional lattice that is less than hydrone; at polyethylene surface and the inner compacted zone that forms; thereby effectively stop the combination of hydroxide and hydrone; this crosslinking method has not only improved the heatproof of electric wire, wear-resisting and fire resistance, and main is to have played resistance effect.This crosslinking method, without high temperature, anhydrous, can make polyethylene crosslinking, can improve again the fire-retardant and electric property of cable.Make cable there is low cigarette, Halogen, the feature such as fire-retardant, fire-resistant and high temperature resistant.Specific performance is as follows: temperature resistant grade is high: it is 135 DEG C (common cable is 70 DEG C or 90 DEG C) that conductor allows working temperature for a long time; Fire resistance is good: bunched burning test is category-A.(common cable is C class); Smokeless poison gas, light transmittance >=90%, pH value >=6.0 (common low-smoke halogen-free cable light transmittance >=60%, pH value >=4.3); Mechanical performance is excellent.Abrasion resistance reaches 160,000 times, exceedes 50 years useful life.

Advantage of the present invention: can reach 105 degree by the crosslinked polyethylene heat resistance after irradiation, cross-linking radiation is physical crosslinking mode, the whole crosslinked intervention that there is no water, hydrone content in its insulation is not more than 100PPM, insulation purity is high, thereby cross-linking radiation cable is at electrical property, and mechanical properties has unique good characteristic, and cable life can reach more than 60 years.While cable has lightweight, simple in structure, lays features such as not being subject to drop restriction.

Claims (10)

1. fire prevention, power saving, durable electric wire and a manufacture method thereof, comprise some conductor wire cores, it is characterized in that described conductor wire core arranges flame retardant coating outward, and flame retardant coating arranges insulation screen outward, between the gap of each conductor wire core, filler is set; Described insulation screen arranges semiconductive waterstop, inner covering, copper wire copper strips combination screen, semiconductive block water buffer strip, aluminium-plastic tape, oversheath outward according to this.

2. by fire prevention claimed in claim 1, power saving, durable electric wire and manufacture method thereof, it is characterized in that described filler is glass fiber filler, a ceramic silicone rubber insulation layer is also set between described conductor wire core and flame retardant coating.

3. by fire prevention claimed in claim 1, power saving, durable electric wire and manufacture method thereof, it is characterized in that described insulation screen is that PE material is made, and high energy electron line by electron accelerator is to insulation screen irradiation.

4. by the fire prevention described in claim 1 or 3, power saving, durable electric wire and manufacture method thereof, it is characterized in that described flame retardant coating is two-layer, internal layer is mica layer, and skin is glass fiber belt.

5. by fire prevention claimed in claim 4, power saving, durable electric wire and manufacture method thereof, it is characterized in that described conductor wire core is at least 2, the cross section of conductor wire core be circle.

6. by fire prevention claimed in claim 5, power saving, durable electric wire and manufacture method thereof, it is characterized in that described conductor wire core is three, and tangent between two.

7. by fire prevention claimed in claim 6, power saving, durable electric wire and manufacture method thereof, it is characterized in that described conductor wire core is formed by concentric type is stranded by the some identical soft round copper wires of diameter.

8. by fire prevention claimed in claim 7, power saving, durable electric wire and manufacture method thereof, it is characterized in that described copper wire copper strips combination screen dredged around outer one deck copper strips wrapped composition by one deck copper wire.

9. by fire prevention claimed in claim 1, power saving, durable electric wire and manufacture method thereof, it is characterized in that described oversheath is environment protection type polyurethane elastomer material.

10. by fire prevention claimed in claim 1, power saving, durable electric wire and a manufacture method for manufacture method thereof, it is characterized in that utilizing the high energy electron line of electron accelerator to carry out irradiation to wire cable insulating layer and protective layer.