CN205609256U - Fire -resistant polyolefin environment -friendly three -core cables of new ceramic fire prevention - Google Patents

Abstract

The utility model relates to a fire -resistant polyolefin environment -friendly three -core cables of new ceramic fire prevention has solved the not enough of prior art, and technical scheme is: it is equipped with the internal shield layer all to overlap in the outside of every conductor, the outside on every internal shield layer is all overlapped and is equipped with the insulating layer, it is equipped with the external shielding layer all to overlap in the outside of every insulating layer, it is equipped with the copper strips layer all to overlap in the outside of every external shielding layer, the outside package on all copper strips layers is equipped with first layer glass fiber tape, fill by fire -resistant filling layer in the first layer glass fiber tape and the space between all copper strips layers, first layer glass fiber tape's the crowded package in the outside has the fire -resistant polyolefin of pottery fire prevention to separate the oxygen layer, interior glass fiber tape separates the outside on oxygen layer at the fire -resistant polyolefin of pottery fire prevention around the package, interior glass fiber tape's outside cover is equipped with the inner sheath, the outside cover of inner sheath is equipped with steel strip, outer glass fiber tape is around the outside of package at steel strip, outer glass fiber tape's outside cover is equipped with the oversheath.

Description

New ceramic chemoprevention fire fire-resistant polyolefin environment-friendly type three-core cable

Technical field

This utility model relates to a kind of three-core cable, particularly to a kind of new ceramic chemoprevention fire fire-resistant polyolefin environmental protection Type three-core cable.

Background technology

Chinese Patent Application No.: CN201020560553.X, publication date: 2011-05-11, disclose one High-low temperature resistant signal cable made of composite material, the macromolecule silicon materials arranged including the line length direction along signal cable The external insulation of extrusion molding is outer by, the silver-plated braiding copper mesh layers that arranges along the line length direction of signal cable, along signal The outer quilt of the interior insulation extruded by high molecular weight ptfe material that the line length direction of cable is arranged and conductor, the most absolutely Edge is outer is coated with silver-plated conductor by the line length direction along signal cable, and silver-plated braiding copper mesh layers is along the line length of signal cable Insulate in the cladding of direction outer quilt, and external insulation is outer is coated with silver-plated braiding copper mesh layers by the line length direction along signal cable, The surface of silver-plated braiding copper mesh layers is provided with silver coating, and the surface of conductor is provided with silver coating, and signal cable flexibility is good, Signal cable can not damaged by arbitrarily complications, and signal cable signal capacity of resisting disturbance and signal transmission capabilities are more By force, it is to avoid signal is attenuated, signal cable can carry out high and low temperature environment long-distance transmissions operation.

Fireproof cable structure includes conductor, conductor shield, insulating barrier, insulation screen, metal tape screen at present Cover layer, extrude Ceramic silicon rubber, oxygen barrier layer, steel band, oversheath.Existing fireproof cable is at 350-1600 DEG C In the case of having flame, nonflame, easily melt, easily drip and come off, spot fire can be caused

Utility model content

The purpose of this utility model is that solving above-mentioned prior art fireproof cable has flame, nonflame at 350-1600 DEG C In the case of, easily melt, easily drip and come off, the problem that spot fire can be caused, it is provided that a kind of new pottery Porcelain chemoprevention fire fire-resistant polyolefin environment-friendly type three-core cable.

This utility model solves its technical problem and be the technical scheme is that a kind of new ceramic fireproof gathers Alkene environment-friendly type three-core cable, including three conductors, internal shield, insulating barrier, external shielding layer, copper strips layer, Fire-resistant packed layer, ground floor glass fiber tape, ceramic fireproof polyolefin oxygen barrier, interior glass fiber tape, Inner sheath, steel belt layer, outer glass fiber tape and oversheath, be all arranged with interior screen in the outside of conductor every described Covering layer, the outside of each described internal shield is all arranged with described insulating barrier, in the outside of each described insulating barrier All it is arranged with described external shielding layer, is all arranged with described copper strips layer in the outside of each described external shielding layer, all The outside bag of copper strips layer is provided with ground floor glass fiber tape, in ground floor glass fiber tape and between all copper strips layers Space filled by fire-resistant packed layer, the outside of ground floor glass fiber tape be extruded with ceramic fireproof gather Alkene oxygen barrier layer, interior glass fiber tape around wrapping in the outside of described ceramic fireproof polyolefin oxygen barrier, institute The outer sheath stating interior glass fiber tape is provided with inner sheath, and the outer sheath of described inner sheath is provided with steel belt layer, outer glass Fiber band is around wrapping in the outside of described steel belt layer, and the outer sheath of outer glass fiber tape is provided with oversheath.This practicality is new Type is to fill when stranding to use fire-resistant inserts, plays fire-resistant effect；One layer of glass fibers of the wrapped employing of stranding Dimension band, plays fire-resistant effect, and oxygen barrier layer uses ceramic fireproof polyolefin jacket, and crust speed is fast, Crusting very rigid, closely knit, horizontal firing can be put out in vain and not prolonged combustion, more than oxygen index (OI) >=45；At 350-1600 DEG C In the case of having flame, nonflame, do not melt, do not drip, do not fall off, do not result in spot fire, can burn till hard Ceramic-like armour body, temperature is the highest, ceramic-like armour body after time the longest burning is the hardest, and residue is pottery nothing Machine thing, residual volume is more than 85%, and ceramic-like armour physical ability forms cellular fine holes, and can to play good fire insulation heat insulation Effect, low-smoke and halogen-free flame retardant polyolefin jacket plays the effect of high fire-retardance and environmental protection；The outer wrapped one layer of glass of armouring Glass fiber band, plays fire-resistant effect；Oversheath uses resistant environmental low-smoke halogen-free flame polyolefin jacket, plays Environment-friendly type and the effect of high fire-retardance.This utility model provides the benefit that: the resistance to fire action of packing material during stranding And oxygen barrier layer uses ceramic fireproof polyolefin jacket, not prolonging combustion, do not drip, flue gas toxity reaches ZA1 After level, i.e. white mice suck flue gas 30min, within three days, it is not changed in, so secondary will be caused to hinder human body Evil；Smoke density light transmittance is up to more than 80%；Raw material Halogen, nontoxic, tasteless, heavy metal free, more than ROSH The requirement of standard, sheath uses low-smoke and halogen-free flame retardant polyolefin jacket will not produce toxic gas when burning.

As preferably, described ceramic fireproof polyolefin oxygen barrier is nominal thickness 5.0mm's to 6.0mm Ceramic fireproof polyolefin oxygen barrier.

As preferably, described inner sheath and described oversheath are low-smoke and halogen-free flame retardant polyolefin jacket.

As preferably, described steel belt layer is galvanized steel belt.

Substantial effect of the present utility model is: during stranding, resistance to fire action and the oxygen barrier layer of packing material use pottery Chemoprevention fire fire-resistant polyolefin jacket, does not prolong combustion, does not drips, and flue gas toxity reaches ZA1 level, i.e. white mice and sucks After flue gas 30min, within three days, it is not changed in, so human body will not be caused secondary injury；Smoke density light transmittance Up to more than 80%；Raw material Halogen, nontoxic, tasteless, heavy metal free, more than the requirement of ROSH standard, protect Set uses low-smoke and halogen-free flame retardant polyolefin jacket will not produce toxic gas when burning.

Accompanying drawing explanation

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

In figure: 1, conductor, 2, internal shield, 3, insulating barrier, 4, external shielding layer, 5, copper strips layer, 6, Fire-resistant packed layer, 7, layer of glass band, 8, ceramic fireproof polyolefin oxygen barrier, 9, interior glass Glass fiber band 10, inner sheath 11, galvanized steel belt, 12, outer glass fiber tape, 13, oversheath.

Detailed description of the invention

Below by specific embodiment, and combine accompanying drawing, the technical solution of the utility model is made further tool Body explanation.

Embodiment:

A kind of new ceramic chemoprevention fire fire-resistant polyolefin environment-friendly type three-core cable (seeing accompanying drawing 1), including three conductors 1, internal shield 2, insulating barrier 3, external shielding layer 4, copper strips layer 5, fire-resistant packed layer 6, ground floor glass fibers Dimension band 7, ceramic fireproof polyolefin oxygen barrier 8, interior glass fiber tape 9, inner sheath 10, steel belt layer, Outer glass fiber tape 12 and oversheath 13, be all arranged with internal shield in the outside of conductor every described, each The outside of described internal shield is all arranged with described insulating barrier, the most sheathed in the outside of each described insulating barrier State external shielding layer, be all arranged with described copper strips layer in the outside of each described external shielding layer, outside all copper strips layers Side bag is provided with ground floor glass fiber tape, the space in ground floor glass fiber tape and between all copper strips layers by Fire-resistant packed layer is filled, and the outside of ground floor glass fiber tape is extruded with ceramic fireproof polyolefin oxygen barrier Layer, interior glass fiber tape around wrapping in the outside of described ceramic fireproof polyolefin oxygen barrier, described interior glass The outer sheath of fiber band is provided with inner sheath, and the outer sheath of described inner sheath is provided with steel belt layer, outer glass fiber tape around Wrapping in the outside of described steel belt layer, the outer sheath of outer glass fiber tape is provided with oversheath.The fire prevention of described ceramic is resistance to Fire polyolefin oxygen barrier is the ceramic fireproof polyolefin oxygen barrier of nominal thickness 5.0mm to 6.0mm. Described steel belt layer is galvanized steel belt 11.Described inner sheath and described oversheath are low smoke halogen-free flame-retardant polyolefin Sheath.

The present embodiment is to fill when stranding to use fire-resistant inserts, plays fire-resistant effect；The wrapped employing of stranding Layer of glass band, plays fire-resistant effect, and oxygen barrier layer uses ceramic fireproof polyolefin jacket, knot Shell speed is fast, crusts very rigid, closely knit, and horizontal firing can be put out in vain and not prolonged combustion, more than oxygen index (OI) >=45； In the case of having flame, nonflame at 350-1600 DEG C, do not melt, do not drip, do not fall off, do not result in spot fire, Can burn till hard ceramic-like armour body, temperature is the highest, ceramic-like armour body after time the longest burning is the hardest, residual Excess is ceramic inorganic thing, and residual volume is more than 85%, and ceramic-like armour physical ability forms cellular fine holes and can play very Good fire insulation effect of heat insulation, low-smoke and halogen-free flame retardant polyolefin jacket plays the effect of high fire-retardance and environmental protection；Armouring Outer wrapped layer of glass band, plays fire-resistant effect；Oversheath uses resistant environmental low-smoke halogen-free flame polyene Hydrocarbon sheath, plays the effect of environment-friendly type and high fire-retardance.The present embodiment provides the benefit that: packing material during stranding Resistance to fire action and oxygen barrier layer use ceramic fireproof polyolefin jacket, do not prolong combustion, do not drip, flue gas is malicious Property reach ZA1 level, i.e. white mice sucks after flue gas 30min, within three days, is not changed in, so will not be to human body Cause secondary injury；Smoke density light transmittance is up to more than 80%；Raw material Halogen, nontoxic, tasteless, a nothing huge sum of money Belonging to, more than the requirement of ROSH standard, sheath uses low-smoke and halogen-free flame retardant polyolefin jacket will not produce when burning Raw toxic gas.

Embodiment described above is one of the present utility model preferably scheme, not makees this utility model Any pro forma restriction, also has other change on the premise of without departing from the technical scheme described in claim Body and remodeling.

Claims (4)

1. a new ceramic chemoprevention fire fire-resistant polyolefin environment-friendly type three-core cable, it is characterised in that: include three Conductor, internal shield, insulating barrier, external shielding layer, copper strips layer, fire-resistant packed layer, ground floor glass Fiber band, ceramic fireproof polyolefin oxygen barrier, interior glass fiber tape, inner sheath, steel belt layer, Outer glass fiber tape and oversheath, be all arranged with internal shield in the outside of conductor every described, each The outside of described internal shield is all arranged with described insulating barrier, all overlaps in the outside of each described insulating barrier It is provided with described external shielding layer, is all arranged with described copper strips layer, institute in the outside of each described external shielding layer The outside bag having copper strips layer is provided with ground floor glass fiber tape, with all copper in ground floor glass fiber tape Space between belt is filled by fire-resistant packed layer, and the outside of ground floor glass fiber tape is extruded with pottery Porcelain chemoprevention fire fire-resistant polyolefin oxygen barrier layer, interior glass fiber tape gathers around wrapping in described ceramic fireproof The outside of alkene oxygen barrier layer, the outer sheath of described interior glass fiber tape is provided with inner sheath, described inner sheath Outer sheath be provided with steel belt layer, outer glass fiber tape around wrapping in the outside of described steel belt layer, outer glass fibers The outer sheath of dimension band is provided with oversheath.

New ceramic chemoprevention fire fire-resistant polyolefin environment-friendly type three-core cable the most according to claim 1, it is special Levy and be: described ceramic fireproof polyolefin oxygen barrier is nominal thickness 5.0mm's to 6.0mm Ceramic fireproof polyolefin oxygen barrier.

New ceramic chemoprevention fire fire-resistant polyolefin environment-friendly type three-core cable the most according to claim 1, it is special Levy and be: described inner sheath and described oversheath are low-smoke and halogen-free flame retardant polyolefin jacket.

New ceramic chemoprevention fire fire-resistant polyolefin environment-friendly type three-core cable the most according to claim 1, it is special Levy and be: described steel belt layer is galvanized steel belt.