CN208351956U - A kind of environmental protection twisted pair - Google Patents

Abstract

The utility model provides a kind of environmentally friendly twisted pair, crosslinked with silicane environment-friendly electric wire includes three-layer insulated insulated wire cores, the three-layer insulated insulated wire cores include anaerobic copper conductor, outside the anaerobic copper conductor, from-inner-to-outer successively longitudinal wrap ceramic fire resisting composite band extrudes organosilane crosslinked polyethylene insulation and the insulation of silane crosslinked halogen-free low-smoke flame-proof polyolefin.Simultaneously; it is under basic unit with the three-layer insulated insulated wire cores; low smoke and zero halogen sheath technique is extruded after pair twist or stranding can be increased; and then produce environmentally friendly twisted pair and environmentally friendly sheathed cable; it is promoted and commonly uses wire type environmental protection characteristic and service life quality at this stage; the market demand is catered to, the utility model is simple and reasonable for structure, compact, and realizes the environmentally protective low smoke, zero halogen of electric wire and have both high fire resistance, the characteristic of high life.

Description

A kind of environmental protection twisted pair

Technical field

The utility model relates to cable technology more particularly to a kind of environmentally friendly twisted pairs.

Background technique

Wire and cable, as the transmission path of electric energy in daily life, dosage is very huge in actual use, broad sense Electric wire, the usually terminal of meaning power grid distribution, are switch socket, and the small-sized electric appliances such as illuminator provide the electric energy transmission of power supply Route belongs to " capillary " of power grid distribution, key property be it is widely distributed, usage amount is huge, and fixed laying, for a long time With load, main application is mostly in architecture indoor distribution box case and outer wiring within the walls, and some is also applied to Electrical connection inside electric appliance.

The common electric wire of existing market, for the main PVC material using single layer as insulation, such material contains halogen, Halogen-containing toxic gas can be discharged in the case of by flame calcination, in case of emergency have very major injury, and I to personal safety State's existing legal provisions are limited to 70 years at the time limit of the construction land right to use, general residential construction ownership year, commercial house Room building is limited to 40 years in ownership year, but common civil electric wire cable only has 25 year service life, if the use of the time being more than rule The fixed time limit, aging phenomenon is serious in the process of running for wire cable insulating layer, it would be possible to the safe things such as electric leakage, fire occur Therefore meanwhile, if fire condition once occurs, whether excellent cable can also become examination one in Emergency time continued power The important indicator of cable performance.

So once laying the electric wire that can be used all the life, become the inevitable special title of structure used wire, while many buildings are set at present In meter specification, it is distinctly claimed using environmentally protective high-performance wire and cable, improves with the development of science and technology, environmentally protective height Performance wire and cable certainly will become the development trend of the following line.

Utility model content

The purpose of this utility model is that for above-mentioned high-quality requirement and wire and cable in actual use Environmental protection characteristic development trend proposes crosslinked with silicane environment-friendly type electric wire, and the crosslinked with silicane environment-friendly type electric wire is environmentally protective, and burning is not Generate harmful halogen gas, long service life.

A kind of in order to achieve the above purposes, the technical solution adopted by the utility model is: crosslinked with silicane environment-friendly electric wire, including three The insulated wire cores of layer insulation, the three-layer insulated insulated wire cores include anaerobic copper conductor, outside the anaerobic copper conductor, from interior Outer successively longitudinal wrap ceramic fire resisting composite band, extrudes organosilane crosslinked polyethylene insulation and silane crosslinked halogen-free low-smoke flame-proof polyolefin Insulation, the cross section that the anaerobic copper conductor is solid or stranded copper wire is twisted is circular conductor, and the ceramic is resistance to Fiery composite band uses longitudinal wrap process form, conductive surface is coated on, as the flame retardant coating of wire body, instead of the wrapped cloud of fire-resistant wires The technique of master tape, improves production efficiency, overcomes because mica powder is by flame calcination is easy to fall off and conventional environment places moisture-sensitive The shortcomings that, while having both the effect of the first insulating layer；The organosilane crosslinked polyethylene insulation and the low cigarette type of silane crosslinked halogen-free are fire-retardant Warm water environment crosslinking can be used in polyolefin insulation, two layers of cross-linked material, and it is resistance to improve electric wire for the design of the double-deck cross linked insulation layer Aging life-span, and the complicated technology of electron beam irradiation has been abandoned, safety and environmental protection is energy-saving；By above-mentioned Trinity structure, So that wire body flame-retardant, and combustion product low smoke, zero halogen is environmentally protective, it is ensured that cable safety and environmental protection characteristic.

Further, the copper conductor is the red copper that purity is greater than 99.98%.

Further, the cross section that the anaerobic copper conductor is solid or stranded copper wire is twisted is circular conductor.

Further, the oxygen-free copper conductor structure can be by user demand, using 1 class, 2 classes or 5 class conductors.

Further, the ceramic fire resisting composite band, including Ceramic silicon rubber layer, the Ceramic silicon rubber layer two Side is pasted with pyroceram silk strap, and the ceramic fire resisting composite band softness high resilience, longitudinal wrap and around-packing technology are all very It is convenient, production cost is reduced, production efficiency is improved, meanwhile, the composite band material is in 300 DEG C~2800 DEG C flame calcinations Under, it will form ceramic-like shell, do not melt, do not drip, effectively completely cut off extraneous flame, the existing wrapped mica tape of can effectively replace Technique as electric wire flame retardant coating.

Further, organosilane crosslinked polyethylene insulation and silane crosslinked halogen-free low-smoke flame-proof polyolefin insulation thickness ratio are 1: 2-3。

Warm water environment can be used in organosilane crosslinked polyethylene insulation and the exhausted alkene insulation of crosslinked with silicane low-smoke non-halogen flame-retardant Crosslinking is realized, so that the electricapparatus performance of insulating materials, heat resistance, chemical-resistance, stress crack resistance performance obtain very The raising of big degree.

It is described to be used separately as cotton covered wire comprising three-layer insulated insulated wire cores.

Another purpose of the utility model also discloses a kind of environmentally friendly twisted pair (environment-friendly type fire resisting twisted pair), in use Three-layer insulated insulated wire cores pair twist is stated to form.

The utility model crosslinked with silicane environment-friendly electric wire and environmentally friendly twisted pair construction are simple, reasonable, compact, with prior art phase Compare and has the advantage that

(1) electric property is superior, the design of three-layer insulated structure, so that wire body is provided simultaneously with fire-retardant and fire-resistance property, this Utility model crosslinked with silicane environment-friendly electric wire utilizes material property advantage, is effectively utilized ceramic composite band and meets fire knot porcelain, conventional Moisture-sensitive, the high characteristic of insulation resistance as the first refractory insulating layer of cable, while not avoided because of simple crosslinking under environment Polyethylene insulation poor fire, the defect that simple low smoke, zero halogen insulated with material dampness insulation resistance is decreased obviously, good synthesis Material advantages, so that cable overall performance is obviously improved.

(2) safety is good, and the utility model crosslinked with silicane environment-friendly electric wire, which effectively increases insulating materials, allows conductor to run Temperature, ceramic fire resisting composite band and two layers of crosslinked insulating material want the Trinity insulation system combined, can be by common PVC Insulating materials allows 70 DEG C of conductor operation to be promoted to 90 DEG C, 105 DEG C, 125 DEG C, so that cable insulation ageing-resistant performance is significant It is promoted, promotes electric wire current-carrying capability itself, so that the electric wire service life extends.

(3) LSOH anti-flaming fire resisting, environmentally protective, wire body is thrown away sustainable in flame calcination in certain time Power supply, combustion product is nontoxic, without secondary pollution, electric power support is provided for the fire-fighting equipment enabling under fire condition, for person peace The timely redemption of complete and public property safety provides a strong guarantee.

(4) production cost is low, high production efficiency, with short production cycle, and the first of the utility model crosslinked with silicane environment-friendly electric wire Refractory insulating layer simplifies fireproof construction technique, while two layers of crosslinking material insulating layer, in warm water domain using longitudinal wrap technique It being crosslinked under environment, the degree of cross linking is stablized, and the cost for having prevented traditional electron beam irradiation equipment and the construction of irradiation workshop is high, or Eliminate the assistance expense and freight of external coordination irradiation processing.

(5) production security is strong, and cross-linking process uses warm water crosslinking, and no operator's personal safety hidden danger avoids height Personnel injury of the energy electronic beam irradiation apparatus for operator.

To sum up, the utility model crosslinked with silicane environment-friendly electric wire structure is simple, wide market, and electric property is superior, resistance to Aging is splendid, production process high safety, cable long service life, and low smoke, zero halogen is environmentally protective.

Detailed description of the invention

Fig. 1 is the utility model crosslinked with silicane environment-friendly electric wire schematic cross-section；

Fig. 2 is the utility model environmental protection twisted pair schematic cross-section.

Specific embodiment

The present invention will be further described with reference to embodiments:

Embodiment 1

Present embodiment discloses a kind of crosslinked with silicane environment-friendly electric wires, as shown in Figure 1, including anaerobic copper conductor 1, the nothing Oxygen copper conductor 1 is that the cross section that stranded copper wire is twisted is circular conductor, and copper wire is the red copper that purity is greater than 99.98%.

Successively longitudinal wrap ceramic fire resisting composite band 2 outside the anaerobic copper conductor 1, extrudes 90 DEG C of organosilane crosslinked polyethylene insulations 3 and 90 DEG C of silane crosslinked halogen-free low-smoke flame-proof polyolefin insulation 4.

Wherein anaerobic copper conductor 1 is conductor, and conductivity is high, vertical outside the anaerobic copper conductor as the carrier of electric current transmission The ceramic fire resisting composite band 2 of packet, while as cable fire layer and the first insulating layer, longitudinal wrap ceramic fire resisting composite band work Skill improves production efficiency simultaneously instead of the technique of the wrapped mica tape of traditional fire-resistant wires, overcomes in flame calcination situation Under, since Mica tape is not close, in the case of by flame calcination, mica powder falls off, and then the shortcomings that influence fire resistance, together When, ceramic fire resisting composite band has under conventional environment, not moisture-sensitive, in flame calcination, in very short time, can burn Low fire ceramic shell forms dense protective layer, cooling isolation fire source, so that wire body remains to stablize the excellent spy of continued power Property.

90 DEG C of organosilane crosslinked polyethylene insulation 3 and 90 DEG C silane crosslinked halogen-free low-smoke flame-proof polyolefins insulation 4 collectively as Electrical protection cross linked insulation layer, process thickness is than being about 3:7, to guarantee and enhance the integral insulation performance of electric wire, and the two It is crosslinked by warm water environment realization, the design of such process structure, using material property advantage, is avoided because of simple crosslinking simultaneously Polyethylene insulation poor fire, the defect that simple low smoke, zero halogen insulated with material dampness insulation resistance is decreased obviously, good synthesis Material advantages, so that cable overall performance is obviously improved, it is ensured that electric property, the resistance to ag(e)ing of electric wire are excellent, so that electric The service life is longer for line, and low smoke, zero halogen is environmentally protective.

The present embodiment crosslinked with silicane environment-friendly type electric wire is environmentally protective, and burning does not generate harmful halogen gas, the Halogen of electric wire Weighted value >=4.3 performance pH, conductivity weighted value≤10 μ S/mm, minimum light transmittance >=60% of low cigarette characteristic, fire-resistance property are Can be in 950 DEG C of flame calcinations, continued power 90min or more, electric property is superior, simultaneously ceramic fire resisting composite band with Two layers of crosslinked insulating material wants the Trinity insulation system combined, conductor can be allowed to run common PVC insulating materials 70 DEG C are promoted to 90 DEG C, 105 DEG C, 125 DEG C, so that cable insulation ageing-resistant performance is obviously improved, promote electric wire current-carrying energy itself Power, so that the electric wire service life extends.

Embodiment 2

Present embodiment discloses a kind of environmentally friendly twisted pair, structure is as shown in Fig. 2, the two crosslinked with silicane environmental protection electricity used Line is substantially the same manner as Example 1, the difference is that the silane crosslinked halogen-free low-smoke and flame retardant of the present embodiment crosslinked with silicane environment-friendly electric wire is poly- Alkene insulation 4 is on the make with the form for adding different color masterbatches, after difference color gives differentiation, two crosslinked with silicane environmental protection electricity Line is prepared into environmentally friendly twisted pair by pair twist technique.

The environmentally friendly twisted pair that the present embodiment is prepared is to have low smoke and zero halogen compared with the gain characteristic of market conventional twisted pair Environmentally protective, good flame resistance, fire safe type be strong and high life characteristic, while without complicated irradiation apparatus and auxiliary facility, can adopt It is realized and is crosslinked with warm water crosslinking technique, significantly improve production efficiency, reduce production process personal safety hidden danger.

The utility model is not limited to the above embodiment recorded novel silane crosslinking environment-friendly electric wire, wherein anaerobic copper conductor The change of structure, the change of each thickness degree both are within the protection scope of the present invention.

Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new The range of each embodiment technical solution of type.

Claims (1)

1. a kind of environmental protection twisted pair, which is characterized in that formed using three-layer insulated insulated wire cores pair twist；

The three-layer insulated insulated wire cores include anaerobic copper conductor, and outside the anaerobic copper conductor, from-inner-to-outer successively make pottery by longitudinal wrap Porcelain fire resisting composite band extrudes organosilane crosslinked polyethylene insulation and the insulation of silane crosslinked halogen-free low-smoke flame-proof polyolefin；

The ceramic fire resisting composite band, including Ceramic silicon rubber layer, Ceramic silicon rubber layer two sides are pasted with resistance to height Warm glass wool cloth band；

The organosilane crosslinked polyethylene insulation and silane crosslinked halogen-free low-smoke flame-proof polyolefin insulation thickness ratio are 1:2-3；

The anaerobic copper conductor is 5 class conductors.