CN209045211U - A kind of fire-retardant 1 grade of B1 cable interlocking metal tape fire lagging - Google Patents

A kind of fire-retardant 1 grade of B1 cable interlocking metal tape fire lagging Download PDF

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Publication number
CN209045211U
CN209045211U CN201820709430.4U CN201820709430U CN209045211U CN 209045211 U CN209045211 U CN 209045211U CN 201820709430 U CN201820709430 U CN 201820709430U CN 209045211 U CN209045211 U CN 209045211U
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China
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fire
cable
layer
retardant
metal tape
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CN201820709430.4U
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黄静
盛业武
陈光高
赵云鹏
黄玉兰
张恒玮
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Shang Wei Ltd By Share Ltd
Sunway Co Ltd
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Shang Wei Ltd By Share Ltd
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Abstract

The utility model discloses a kind of fire-retardant 1 grade of B1 cables for interlocking metal tape fire lagging, belong to technical field of electric wires and cables.A kind of fire-retardant 1 grade of B1 cable of interlocking metal tape fire lagging of the utility model, including insulated wire cores, oxygen barrier layer, metal fireproof separation layer, outer jacket.It is characterized by: the insulated wire cores are made of copper conductor, refractory insulating layer, insulating layer;The oxygen barrier layer is the low-smoke halide-free fireproof composite polyolefine material that high fire-retardance is squeezed out on extruding machine;The metal fireproof separation layer is the lock armo layer for being pressed into the Z-shaped lock armo form of certain arch height according to certain pitch by special equipment using metal tape;The oversheath is that low-smoke and halogen-free flame retardant polyolefin jacket material is squeezed out on extruding machine.The metal fireproof separation layer of the utility model is using metal tape lock armo, its interlock between layers, guarantee that cable is amenable to extraneous powerful destructive power, and there is good anti-side pressure performance and rodent-proof characteristic, the lock armo structure keeps cable completely isolated with the external world simultaneously, improve the flame-retardant rank of cable, reduce the danger coefficient of fire, guarantee that product ontology basic performance meets national Specification, does not influence electrical property, bending property, ageing properties, mechanical performance and cable installation performance of cable etc..

Description

A kind of fire-retardant 1 grade of B1 cable interlocking metal tape fire lagging
Technical field
The utility model relates to cable production arts, for a kind of fire-retardant 1 grade of B1 cable for interlocking metal tape fire lagging Structure design.
Background technique
Since 2014, European Union planned indoor electric power, communication, control cable to receive just in building laws The release of fireproofing of cable performance and harmful substance is asked all to have to comply with EU criteria.Meanwhile domestic Ministry of Public Security Sichuan fire house Joint bid committee is proposed GB 31247-2014, carries out classification system for fire performance for cable and optical cable.The standard and EN50575 It is equivalent, domestic market is impacted very big.
Regulation in new edition " design of civil buildings specification ": super high-rise building should select B1 grades of combustibility or more, The electric wire and cable that toxicity of tobacco production is t0 grades, density flaming droplet/particulate class is d0 grades;First class high storey building and densely populated place Public place should select B1 grades of combustibility, toxicity of tobacco production for t1 grades, the wire and cable that density flaming droplet/particulate class is d1 grades Requirement.
State Intellectual Property Office disclosed a Publication No. 107799215A on 03 13rd, 2018, and entitled " one The patent of invention of kind flame retardant cable ", the invention are related to a kind of flame retardant cable, have conductor, wrap on the outer surface of the conductor It is covered with flame retardant coating, insulating layer is provided on flame retardant coating, color separation item is provided on insulating layer, packet attachment oxygen barrier layer on insulating layer, every The outer surface of oxygen layer is provided with steel-tape armouring layer, and outer jacket is coated on steel-tape armouring layer, is coated with waterproof layer on outer jacket.It should The jacket material of invention, oxygen barrier layer material will not expand rapidly and be sintered to form one layer of hard shell in burning, can not Protect cable built-in electrical insulation and combustible.
Utility model content
The purpose of this utility model is to be to overcome above-mentioned technological deficiency, and it is anti-that the utility model provides a kind of interlocking metal tape Fire-retardant 1 grade of B1 cable of fire screen absciss layer, the cable are not only able to satisfy the B1 grade combustibility of GB 31247, and can guarantee product sheet Body basic performance meets national Specification, do not influence the electrical property of cable, bending property, ageing properties, mechanical performance and Cable installation performance etc..
In order to solve above-mentioned problems of the prior art, the utility model is achieved through the following technical solutions: A kind of fire-retardant 1 grade of B1 cable interlocking metal tape fire lagging, including it is insulated wire cores, oxygen barrier layer, metal fireproof separation layer, outer Sheath.It is characterized by: it is characterized by: the insulated wire cores are made of copper conductor, refractory insulating layer, insulating layer;It is described every Oxygen layer is the low-smoke halide-free fireproof composite polyolefine material that high fire-retardance is squeezed out on extruding machine;The metal fireproof separation layer is using gold Belong to the metal fireproof layer constituted with lock armo;The oversheath is that low-smoke and halogen-free flame retardant polyolefin jacket is squeezed out on extruding machine Material.
The conductor is constituted by copper wire is twisted, and outermost layer is left-hand, and adjacent layer is opposite.
The refractory insulating layer is using the wrapped composition of mica tape multiple-layer overlapped.
The insulating layer is to extrude crosslinked polyethylene or other polyolefine materials.
The oxygen barrier layer is to extrude low-smoke and halogen-free flame retardant polyolefin jacket material, and oxygen index (OI) >=40.
The outer jacket is to extrude low-smoke and halogen-free flame retardant polyolefin jacket material, and cable is when by flame impingement, meeting It expands rapidly and is sintered to form one layer of hard shell, it is interior when making cable fire so as to protection cable built-in electrical insulation and combustible Portion's temperature will not be too high, and then the effect of reach anti-flaming thermal-insulation fire resisting.
The metal fireproof separation layer is to be pressed into certain bow according to certain pitch by special equipment using metal tape The lock armo layer of the Z-shaped lock armo form of shape height.
Compared with prior art, brought beneficial technical effect is shown the utility model:
1, when by flame impingement, jacket material, oxygen barrier layer material can expand rapidly and be sintered to form one layer cable Hard shell, so as to protection cable built-in electrical insulation and combustible, internal temperature will not be too high when making cable fire, and then reaches The effect of anti-flaming thermal-insulation fire resisting.
2, the metal fireproof separation layer of the utility model is using metal tape lock armo, between layers chain Structure guarantees that cable is amenable to extraneous powerful destructive power, and has good anti-side pressure performance and rodent-proof characteristic, while the connection Lock sheathed structure keeps cable completely isolated with the external world, improves the flame-retardant rank of cable, reduces the danger coefficient of fire.Together When in terms of mounting and installation, be readily bent, be suitble to the bending under complexity occasion to make and require, it is regular to be not limited to 360 ° of bendings, When indoor laying, it is not required to only need hanger and clamp using gantry or pallet, reduces construction cost, reduce interior of building Load-bearing, while the heat dissipation of surface cable is good, conducive to the operation steady in a long-term of cable, effectively extension cable service life, and System still has good heat dissipation effect under overload state in short-term, it is ensured that system safety operation.
3, using metal fireproof separation layer, flame can be effectively isolated, make to burn when cable fire inside cable core can Combustion things play good fire prevention isolating power.Because combustible combustion can discharge a large amount of heat, it is right in national standard to will affect The examination of heat release rate peak value and hot total volume.Therefore fire-retardant fireproof can effectively be reached using metal fireproof separation layer Effect meets B1 grades of combustibilities as defined in 31247 standard of GB.
4, using metal fireproof separation layer, do not influence the electrical property of cable, mechanical performance, ageing properties, bending property and Mounting and installation performance, also without prejudice to the requirement in product standard to cable material compatibility.
Detailed description of the invention
Fig. 1 is the cross section structure schematic diagram of the utility model, and Fig. 2 is the plan view for interlocking metal tape fire lagging
Attached drawing 1 marks: 1, conductor, 2, refractory insulating layer, 3, insulation, 4, cable core filling, 5, belting layer, 6, oxygen barrier layer, 7, Metal fireproof separation layer, 8, oversheath.
Specific embodiment
Embodiment 1
As one preferred embodiment of the utility model, referring to Figure of description 1:
Shown in it is a kind of interlock metal tape fire lagging fire-retardant 1 grade of B1 cable, mainly by conductor, refractory insulating layer, Insulating layer, oxygen barrier layer, interlocking metal tape fire lagging, oversheath composition.The conductor is constituted by copper conductor is twisted;It is described Refractory insulating layer is to be overlapped wrapped constitute by mica tape;The insulating layer is to extrude crosslinked polyethylene composition;The oxygen barrier layer is The low-smoke halogen-free flame-resistant polyolefin oxygen barrier material that oxygen index (OI) is 40 or more is extruded to be extruded on metal screen layer;The interlocking Metal tape fire lagging is that the Z-shaped for the arch height for being pressed into 2mm according to the pitch of 6mm using stainless steel belt interlocks armour Fill layer;The external sheath layer is to extrude low-smoke and halogen-free flame retardant polyolefin jacket material composition.
Embodiment 2
As the utility model another embodiment, referring to Figure of description 1:
Shown in it is a kind of interlock metal tape fire lagging fire-retardant 1 grade of B1 cable, mainly by conductor, refractory insulating layer, Insulating layer, oxygen barrier layer, interlocking metal tape fire lagging, oversheath composition.The conductor is constituted by copper conductor is twisted;It is described Refractory insulating layer is to be overlapped wrapped constitute by mica tape;The insulating layer is to extrude crosslinked polyethylene composition;The oxygen barrier layer is The low-smoke halogen-free flame-resistant polyolefin oxygen barrier material that oxygen index (OI) is 40 or more is extruded to be extruded on metal screen layer;The interlocking Metal tape fire lagging is that the Z-shaped for the arch height for being pressed into 3mm according to the pitch of 12mm using stainless steel belt interlocks Armor;The external sheath layer is to extrude low-smoke and halogen-free flame retardant polyolefin jacket material composition.
Embodiment 3
As the utility model another embodiment, referring to Figure of description 1:
Shown in it is a kind of interlock metal tape fire lagging fire-retardant 1 grade of B1 cable, mainly by conductor, refractory insulating layer, Insulating layer, oxygen barrier layer, interlocking metal tape fire lagging, oversheath composition.The conductor is constituted by copper conductor is twisted;It is described Refractory insulating layer is to be overlapped wrapped constitute by mica tape;The insulating layer is to extrude crosslinked polyethylene composition;The oxygen barrier layer is The low-smoke halogen-free flame-resistant polyolefin oxygen barrier material that oxygen index (OI) is 40 or more is extruded to be extruded on metal screen layer;The interlocking Metal tape fire lagging is that the Z-shaped for the arch height for being pressed into 4mm according to the pitch of 24mm using stainless steel belt interlocks Armor;The external sheath layer is to extrude low-smoke and halogen-free flame retardant polyolefin jacket material composition.

Claims (6)

1. a kind of fire-retardant 1 grade of B1 cable for interlocking metal tape fire lagging, including insulated wire cores, oxygen barrier layer (6), metal fireproof Separation layer (7), outer jacket (8), it is characterised in that: the insulated wire cores are by copper conductor (1), refractory insulating layer (2), insulating layer (3) it constitutes;The oxygen barrier layer (6) is the low-smoke halide-free fireproof composite polyolefine material that high fire-retardance is squeezed out on extruding machine;The metal Fire lagging (7) is using metal tape by being pressed into the interlocking armour of Z-shaped lock armo form in lock armo equipment Fill layer;The outer jacket (8) is that low-smoke and halogen-free flame retardant polyolefin jacket material is squeezed out on extruding machine.
2. a kind of fire-retardant 1 grade of B1 cable for interlocking metal tape fire lagging as described in claim 1, it is characterised in that: institute Stating conductor (1) is constituted by copper wire is twisted, and outermost layer is left-hand, and adjacent layer is opposite.
3. a kind of fire-retardant 1 grade of B1 cable for interlocking metal tape fire lagging as described in claim 1, it is characterised in that: institute Stating refractory insulating layer (2) is using the wrapped composition of mica tape multiple-layer overlapped.
4. a kind of fire-retardant 1 grade of B1 cable for interlocking metal tape fire lagging as described in claim 1, it is characterised in that: institute Stating insulating layer (3) is to extrude crosslinked polyethylene or other polyolefine materials.
5. a kind of fire-retardant 1 grade of B1 cable for interlocking metal tape fire lagging as described in claim 1, it is characterised in that: institute Stating oxygen barrier layer (6) is to extrude low-smoke and halogen-free flame retardant polyolefin jacket material.
6. a kind of fire-retardant 1 grade of B1 cable for interlocking metal tape fire lagging as described in claim 1, it is characterised in that: institute Stating outer jacket (8) is to extrude low-smoke and halogen-free flame retardant polyolefin jacket material.
CN201820709430.4U 2018-05-14 2018-05-14 A kind of fire-retardant 1 grade of B1 cable interlocking metal tape fire lagging Active CN209045211U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113823451A (en) * 2020-06-19 2021-12-21 中特华星电缆股份有限公司 Middle-high voltage fire-resistant power cable
CN114334260A (en) * 2020-10-12 2022-04-12 上海上缆辐照技术开发有限公司 Flame retardant cable reaching and exceeding European Union grade B1

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113823451A (en) * 2020-06-19 2021-12-21 中特华星电缆股份有限公司 Middle-high voltage fire-resistant power cable
CN114334260A (en) * 2020-10-12 2022-04-12 上海上缆辐照技术开发有限公司 Flame retardant cable reaching and exceeding European Union grade B1

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