CN202487208U - Low smoke zero halogen (LSZH) ignition-proof irradiation crosslinking sheath cable - Google Patents

Abstract

A low smoke zero halogen (LSZH) ignition-proof irradiation crosslinking sheath cable comprises a copper conductor which is in a copper single-wire multistrand compound stranding structure, wherein the copper conductor is wrapped by two layers of double-surface synthesis fire-resistant mica tapes in a winded mode, a silane natural crosslinking polyethylene insulation layer with high tensile strength is extruded outside the double-surface synthesis fire-resistant mica tapes, and an insulation core is formed by the copper conductor, the double-surface synthesis fire-resistant mica tapes and the silane natural crosslinking polyethylene insulation layer. The interspace of the insulation core formed by stranding is filled by LSZH ignition-proof organic mineral ropes to form a cable and stranded into a whole, the cable core is wrapped by three layers of LSZH ignition-proof glass gummed cloth tapes with the overlapping ratio >= 50% in a winded mode, and a high and low temperature resistant LSZH ignition-proof irradiation crosslinking polyolefin sheath layer at 125 DEG C is extruded outside the LSZH ignition-proof glass gummed cloth tapes.

Description

Low-smoke non-halogen flame-retardant cross-linking radiation jacketed cable

Technical field

The utility model relates to a kind of cable, especially is widely used in the low-smoke non-halogen flame-retardant cross-linking radiation jacketed cable in places such as city rail, subway, hospital and skyscraper.

Background technology

At present, according to the authority of Ministry of Public Security statistics, national all kinds of fire nearly 30% are caused by electric reason.Numerous fire calamity " Invest, Then Investigate "s find that much human is not scorched to death, but because of sucking the toxic gas death by suffocation that discharges when electric wire burns.Contain a large amount of halogen species in the common electric wire, can produce excitant severe toxicity gas during burning, seriously hinder the fire fighter to put out a fire and evacuation personnel and meeting etching apparatus, incured loss through delay rescue time, cause great loss for the people's life and property.Common low-smoke halogen-free inflaming-retarding cable temperature resistant grade is low, and overload capacity is little, and insulation resistance is little, and ageing resistace is poor, and environmental-protecting performance is poor, and useful life is short, has satisfied not under special occasions and has used.

The utility model content

The purpose of the utility model provides a kind of low-smoke non-halogen flame-retardant cross-linking radiation jacketed cable, and it has and is difficult to spontaneous combustion and the ability that stops or delay propagation of flame is arranged, and ageing resistace is good; Thermally-stabilised good, insulation resistance is big, high-low temperature resistant; Overload capacity is strong; And in case catch fire, it have low cigarette, Halogen, nontoxic, do not have environmental protection characteristic such as corrosion, be applicable to the cable in places such as city rail, subway, oil, chemical industry, hospital and skyscraper.

For achieving the above object; The solution that the utility model is taked is: a kind of low-smoke non-halogen flame-retardant cross-linking radiation jacketed cable; It comprises copper conductor; Copper conductor adopts the copper single line multiply structure that tangles again, the outer wrapped two layers of two-sided synthetic refractory mica tape of copper conductor, and two-sided synthetic refractory mica tape extrudes high-tensile silane natural-crosslinked polyethylene insulating barrier outward; Copper conductor, two-sided synthetic refractory mica tape, silane natural-crosslinked polyethylene insulating barrier are formed insulated wire cores; The filling of low-smoke non-halogen flame-retardant humatite matter rope is adopted in the space of the stranded formation of insulated wire cores, and also stranding is stranded in one, and cable core is outer with the wrapped three layers of low-smoke bittern-free highly fire-proof glass gluing strap of ≮ 50% Duplication, and low-smoke bittern-free highly fire-proof glass gluing strap extrudes 125 ℃ of polyolefinic restrictive coatings of low-smoke non-halogen flame-retardant cross-linking radiation of high-low temperature resistant outward.

The utlity model has following advantage:

1, multi-core conductor adopts the copper single line multiply structure that tangles again, and softness is strengthened greatly;

2, insulating barrier is selected high-intensity silane natural-crosslinked polyethylene insulation for use, has improved the tensile strength of cable, makes cable have good ageing resistance and thermal stability;

3, restrictive coating is selected 125 ℃ of low-smoke non-halogen flame-retardant cross-linking radiation polyolefin jackets for use, makes cable have performances such as excellent flame-retardant performance, high-low temperature resistant, overload capacity are strong, constant product quality, Environmental Safety.Effectively stop spreading of flame.

Description of drawings

Fig. 1 is the present embodiment structural representation.

Among the figure: 1, copper conductor; 2, two-sided synthetic refractory mica tape, 3, the silane natural-crosslinked polyethylene insulating barrier, 4, low-smoke non-halogen flame-retardant humatite matter rope; 5, low-smoke bittern-free highly fire-proof glass gluing strap, 6,125 ℃ of low-smoke non-halogen flame-retardant cross-linking radiation polyolefin jacket layers.

Embodiment

Below in conjunction with embodiment and accompanying drawing thereof the utility model is remake description.

Referring to Fig. 1; A kind of low-smoke non-halogen flame-retardant cross-linking radiation jacketed cable; It comprises copper conductor 1; Copper conductor 1 adopts the copper single line multiply structure that tangles again, copper conductor 1 outer wrapped two layers of two-sided synthetic refractory mica tape 2, and two-sided synthetic refractory mica tape 2 is outer to extrude high-tensile silane natural-crosslinked polyethylene insulating barrier 3; Copper conductor 1, two-sided synthetic refractory mica tape 2, silane natural-crosslinked polyethylene insulating barrier 3 are formed insulated wire cores; 4 fillings of low-smoke non-halogen flame-retardant humatite matter rope are adopted in the space that forms between the insulated wire cores, and also stranding is stranded in one, and cable core is outer with the wrapped three layers of low-smoke bittern-free highly fire-proof glass gluing strap 5 of ≮ 50% Duplication, the glass gluing strap 5 outer polyolefinic restrictive coatings 6 of 125 ℃ of low-smoke non-halogen flame-retardant cross-linking radiations that extrude high-low temperature resistant.

Claims (1)

1. low-smoke non-halogen flame-retardant cross-linking radiation jacketed cable; It comprises copper conductor (1); Copper conductor (1) adopts the copper single line multiply structure that tangles again; The outer wrapped two layers of two-sided synthetic refractory mica tape (2) of copper conductor (1), the outer high-tensile silane natural-crosslinked polyethylene insulating barrier (3) that extrudes of two-sided synthetic refractory mica tape (2), copper conductor (1), two-sided synthetic refractory mica tape (2), silane natural-crosslinked polyethylene insulating barrier (3) are formed insulated wire cores; The space of the stranded formation of insulated wire cores adopts low-smoke non-halogen flame-retardant humatite matter rope (4) to fill; Many insulated core stranding is stranded in one, and cable core is outer with the wrapped three layers of low-smoke bittern-free highly fire-proof glass gluing strap of ≮ 50% Duplication (5), the outer 125 ℃ of low-smoke non-halogen flame-retardant cross-linking radiation polyolefin jacket layers (6) that extrude high-low temperature resistant of low-smoke bittern-free highly fire-proof glass gluing strap (5).

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