CN208444637U - Environment-friendly type silane cross-linking low-smoke halogen-free cable - Google Patents

Abstract

The utility model discloses a kind of environment-friendly type silane cross-linking low-smoke halogen-free cables, it from inside to outside successively include center conductor, insulating layer, insulation outer conductor layer, flame-retardant layer and external sheath layer, center conductor is that rare earth aluminium alloy wire drawing process forms using 8000, insulating layer is formed using organosilane crosslinked polyethylene processing of high molecular material, insulation outer conductor layer is process using 8000 line aluminium alloys, flame-retardant layer is formed using high fire-retardance glass cloth tape is wrapped, and external sheath layer is process by crosslinked with silicane low smoke and zero halogen plastics and fire proofing.The utility model improves the conductivity of environment-friendly cable, heat-resisting quantity, occurs when fire that cable is nonflammable, and the smog of generation is extremely thin, is conducive to the evacuation of personnel and the progress of fire-fighting work, avoids environmental pollution, easy to spread.

Description

Environment-friendly type silane cross-linking low-smoke halogen-free cable

One, technical field:

The utility model relates to a kind of environment-friendly cables, more particularly to a kind of environment-friendly type silane cross-linking low-smoke halogen-free electricity Cable.

Two, background technique:

With the development of world economy and science and technology, the demand of wire and cable is increasing, is improving to its performance requirement.New Economic situation and technical conditions under, new trend is presented in the development of global wires and cables industry, and environment-friendly cable gradually becomes the whole world The development priority of cable.There is quite serious pollution in view of normal cable, during manufacture, use, offal treatment It will appear the public hazards substance such as a large amount of dioxin, lead, cadmium, halide, developed country is used for fewer and fewer.Especially in European Union Formulated ROHS instruction after, Europe, the United States, Deng state are higher and higher to the environmental requirement of used cable, they forbidden using Or import non-environmental protection type cable, the research and development of ecological, environmental protective cable and extensive use have become international mainstream.

Three, utility model content:

The technical problem to be solved by the utility model is to overcoming the deficiencies of the prior art and provide a kind of environment-friendly type silane Cross-linking low-smoke halogen-free cable is innovated by using novel structure design and material technology, and cable is nonflammable in the case of fire It burns, and smog injury is small, there is very high security feature.

The utility model is adopted the technical scheme that in order to solve the technical problem:

A kind of environment-friendly type silane cross-linking low-smoke halogen-free cable, it is successively outer including center conductor, insulating layer, insulation from inside to outside Conductor layer, flame-retardant layer and external sheath layer, the center conductor are that rare earth aluminium alloy wire drawing process forms using 8000, the insulation Layer is formed using organosilane crosslinked polyethylene processing of high molecular material, the insulation outer conductor layer using the processing of 8000 line aluminium alloys and Formed at, the flame-retardant layer using high fire-retardance glass cloth tape is wrapped, the external sheath layer by crosslinked with silicane low smoke and zero halogen plastics and Fire proofing is process.

The insulation outer conductor layer is made of several conductor thread cores, and several conductor thread cores are uniformly looped around the insulation The outside of layer, the flame-retardant layer is around the outside of several conductor thread cores.

The parts by weight of the fire proofing are the 2.5% of crosslinked with silicane low smoke and zero halogen plastics parts by weight.

The utility model has fire-retardant, low cigarette, Halogen, low toxicity, is free of the harmful heavy metals such as lead, cadmium, by using novel Structure design and material technology innovation, cable is nonflammable in the case of fire, and smog injury is small, have very high safety Characteristic, while will not cause damages to environment, meet people and ecology and environmental protection are wanted.

For the utility model compared with common cable, key technology innovation is embodied in the following:

1. center conductor: phase conductor is rare earth aluminium alloy using 8000, passes through wire drawing, annealing, twisted, annealing operation process Form, 8000 aluminium alloys have excellent conduction, welding and corrosion resisting property, while also have conducting capacity is big, tensile strength is high, The good advantage of light weight, sag characteristic guarantees the stability of cable in use.

2. insulating layer: being formed using one-step silane cross-linked polyethylene processing of high molecular material, there is good physical machine Tool performance, fabulous chemical stability and excellent dielectric properties, improve cable long-term use temperature, product when burning It is CO2 and H2O, reduces the harm to environment, meet the requirement of modern fire low smoke and non-toxic, is environment-friendly cable first choice Insulating materials.

3. insulate outer conductor layer: using 8000 line aluminium alloys, there is good flexibility and bendability, compensate for fine aluminium and lead The deficiency of body, greatly improves conductivity, the heat-resisting quantity of environment-friendly cable, while solving fine aluminium conductor electrochemical corrosion, compacted The problems such as change.

4. flame-retardant layer: being formed using one layer of high fire-retardance glass cloth tape is wrapped, neutral conductor can be tightened, it is ensured that neutral core Not loose and insulation is not scratched, and can isolated insulation layer and outer jacket.When cable is by burning, a large amount of heat can be absorbed Amount, and carburization zone is formed, isolation gas-bearing formation protects insulating layer from burning, and the loss of fire is made to be not further expansion.

The acid gas of the toxic gases such as HCL, discharge is few, damages small, more aobvious environmental protection feature to personnel and equipment, instrument；Electricity The smog that cable generates when burning is extremely thin, is conducive to the evacuation of personnel and the progress of fire-fighting work.PVC electric wire produces when burning Life can be carcinogenic " dioxin " substance；It is raw using the one-step method silanes crosslinked low smoke and zero halogen material of the environment-friendly type of no pollution to the environment 5. external sheath layer will not be generated when production, use process and burning: being added using the one-step method silanes crosslinked low smoke and zero halogen material of environment-friendly type Work forms, and is added fire proofing in the plastic, occurs that cable when fire is nonflammable, and can prevent after burning the sprawling of flame with The expansion of disaster；Halogen-free oversheath solves " secondary pollution " formed when its burning, avoids tradition

Four, Detailed description of the invention:

Fig. 1 is the structural schematic diagram of the utility model.

Five, specific embodiment:

The utility model is made further explanation in the following with reference to the drawings and specific embodiments:

Embodiment: referring to Fig. 1, a kind of environment-friendly type silane cross-linking low-smoke halogen-free cable is successively led including center from inside to outside Body 1, insulating layer 2, insulation outer conductor layer 3, flame-retardant layer 4 and external sheath layer 5, center conductor 1 are that rare earth aluminium alloy is drawn using 8000 Silk process forms, and insulating layer 2 is formed using organosilane crosslinked polyethylene processing of high molecular material, and insulation outer conductor layer 3 uses 8000 Line aluminium alloy is process, and flame-retardant layer 4 is formed using high fire-retardance glass cloth tape is wrapped, external sheath layer 5 by the low cigarette of crosslinked with silicane without Halogen plastics and fire proofing are process；Wherein: insulation outer conductor layer 3 is made of several conductor thread cores, several conductor lines Core is uniformly looped around the outside of the insulating layer 2, and flame-retardant layer 4 is around the outside of several conductor thread cores；The weight of fire proofing Part is the 2.5% of crosslinked with silicane low smoke and zero halogen plastics parts by weight.

The utility model ensure that the company of cable in use by using novel structure design and material application Continuous property and stability, improve conductivity, the heat-resisting quantity of environment-friendly cable, and cable is not easy when fire occurring when a fire Burning, and the sprawling of flame and the expansion of disaster after burning can be prevented, the smog that when cable fire generates is extremely thin, is conducive to The evacuation of personnel and the progress of fire-fighting work have very high security feature, avoid environmental pollution, meet people to ecology And the requirement of environmental protection.

Claims (3)

1. a kind of environment-friendly type silane cross-linking low-smoke halogen-free cable, it is characterised in that: the environment-friendly type silane cross-linking low-smoke halogen-free electricity Cable successively includes center conductor (1), insulating layer (2), insulation outer conductor layer (3), flame-retardant layer (4) and external sheath layer from inside to outside (5), the center conductor (1) is that rare earth aluminium alloy wire drawing process forms using 8000, and the insulating layer (2) uses crosslinked with silicane Vinyl polymer material is process, and the insulation outer conductor layer (3) is process using 8000 line aluminium alloys, described fire-retardant Layer (4) is formed using high fire-retardance glass cloth tape is wrapped, and the external sheath layer (5) is by crosslinked with silicane low smoke and zero halogen plastics and fire-retardant material Material is process.

2. environment-friendly type silane cross-linking low-smoke halogen-free cable according to claim 1, it is characterised in that: the insulation outer conductor Layer (3) is made of several conductor thread cores, and several conductor thread cores are uniformly looped around the outside of the insulating layer (2), described Flame-retardant layer (4) is around the outside of several conductor thread cores.

3. environment-friendly type silane cross-linking low-smoke halogen-free cable according to claim 1, it is characterised in that: the fire proofing Parts by weight are the 2.5% of crosslinked with silicane low smoke and zero halogen plastics parts by weight.