CN207282177U - One kind fire prevention computer cable - Google Patents

One kind fire prevention computer cable Download PDF

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Publication number
CN207282177U
CN207282177U CN201721282212.9U CN201721282212U CN207282177U CN 207282177 U CN207282177 U CN 207282177U CN 201721282212 U CN201721282212 U CN 201721282212U CN 207282177 U CN207282177 U CN 207282177U
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China
Prior art keywords
layer
core
band
fire
conductor
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CN201721282212.9U
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Chinese (zh)
Inventor
王浩淼
王成忠
刘源
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SHANGHAI RONDA CABLE (GROUP) CO Ltd
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SHANGHAI RONDA CABLE (GROUP) CO Ltd
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Priority to CN201721282212.9U priority Critical patent/CN207282177U/en
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Abstract

The utility model describes a kind of fire prevention computer cable, and cable includes multiple cores and the fire lagging being wrapped in outside multiple cores;Core is formed by two conductor pair twists, each core is coated with protective layer;The fire lagging is followed successively by insulation pack band, shielded layer, separation layer, fireprotection layer, outer band and sheath from inside to outside.Computer cable is made of cable core conductor and the fire lagging being located at outside it, some core groups are equipped with cable core conductor, these core groups are arranged according to certain regulation, its exterior fire lagging then wraps up, protects and prevents fires layer by layer, so that computer cable has excellent electrical insulating property, high temperature resistant and low temperature at the same time, 40~200 DEG C of Long-term service temperature, service life was up to 70 years.

Description

One kind fire prevention computer cable
Technical field
Field of cable technology, more particularly to a kind of fireproof cable are the utility model is related to, specifically one kind is based on The fireproof cable of calculation machine.
Background technology
The continuous development of the new and high technologies such as big data, artificial intelligence, Internet of Things, the application range of computer cable constantly expand Exhibition.Meanwhile the densely populated place such as the important job facilities such as heavy construction, subway, tunnel, nuclear power station and large supermarket, conference and exhibition center It is local more and more, requirement is proposed to the security performance under fire condition.Computer cable rises emphatically in these facilities Act on, be the passage of various information processings, in case of fire, whether computer cable can normally be transported within a certain period of time OK, play an important role to escape and the disaster relief.Therefore, the fire protecting performance of computer cable has obtained great attention.
The content of the invention
The purpose of this utility model is to provide a kind of fire prevention computer cable, passes through the internal structure to computer cable Change and set, it is intended to the fire prevention of notable computer cable, shielding properties.
To achieve these goals, the technical solution of the utility model is:One kind fire prevention computer cable, its feature exist In:The cable includes multiple cores and the fire lagging being wrapped in outside multiple cores;Core by two conductor pair twists and Into each core is coated with protective layer;The fire lagging be followed successively by from inside to outside insulation pack band, shielded layer, Separation layer, fireprotection layer, outer band and sheath.
Preferably, core is formed by two conductor strands, and the outside of conductor is extruded with ceramic insulating layer, and the conductor is Copper free wire, ceramic insulating layer are made of ceramic silica cement, the ratio between the thickness of ceramic insulating layer and the diameter of conductor It is worth for 1:2-6;Two conductor strands become a core, and the diameter of core is more than the sum of two conductor diameters;Each core Surface is all provided with color band.
Preferably, the insulation pack band carries out band using alkali-free glass band;Shielded layer is aluminum pipe shielded layer, use It is that the aluminum pipe of a diameter of 1.0-1.5mm is coated on outside insulation pack band and is formed;Separation layer uses thickness to be squeezed for the PE separation sleeves of 1mm Bag forms.
Preferably, the fireprotection layer is formed by mixture coating, the mixture by hydrate and sodium metasilicate according to Percentage by weight 1:1-1.85 is mixed, and the hydrate uses magnesium hydroxide hydrate or aluminium hydroxide hydrate; Fireprotection layer is coated with band, and the band is fire-retardant band;Jacket layer is protected using flame-proof polyethylene or low smoke and zero halogen Jacking is made, and jacket layer is extruded in fire-retardant band surface, thickness 2-5mm.
Further, 7 cores are equipped with cable, one of core is centrally-disposed, during remaining 6 core surrounds The core of heart position is set.
Relative to the prior art, the technical solution of the utility model further includes many except the improvement of overall technical architecture Improvement in terms of details, specifically, has the advantages that:
1st, improvement project described in the utility model, computer cable are equipped with some cores, these cores are according to certain Regulation is arranged, its exterior fire lagging then wraps up, protects and prevent fires layer by layer so that computer cable has excellent Electrical insulating property, while high temperature resistant and low temperature, Long-term service temperature -40~200 DEG C, service life was up to 70 years;
2nd, the shielded layer used in the protection insulating layer of the technical solution of the utility model is aluminum pipe shielded layer, the shielded layer It is arranged in order using aluminum pipe and is coated on the formation of insulation pack belt surface, there is excellent shield effectiveness, provided for whole cable One uniform electric field, first, the interference of inside and outside electric field, magnetic field can be shielded;;Second, can laterally it block water;Three It is that aluminum pipe can be used as ground wire to use, reduces cable cost;
3rd, the fireprotection layer of the utility model is formed by mixture coating, and the mixture is by hydrate and sodium metasilicate by mixed Conjunction forms, and the hydrate uses magnesium hydroxide hydrate or aluminium hydroxide hydrate, and it is big that when high temperature can decompose generation Measure moisture and form water mist, so as to play the role of cooling and fireproof, while extruding fireprotection layer, go out after die orifice while overlapping wrapped Two layers of high fire-retardance band, drips to prevent fire-proof mud and overflows;
4th, the utility model is environmentally friendly:It is heavy metal free, nontoxic, tasteless, human body, environment are not had an impact;Ant proof, Mouse bite preventing, waterproof, oil resistant;
5th, the utility model has good thermal insulation, and thermal conductivity factor 0.09W/Mk, the inside being particularly after ablation is equal Even is cellular, has more preferable fire resistance and thermal insulation;
6 the utility model have excellent fire protecting performance, and fire resistance rating can reach the A level standards of GB12666.6, that is, exist Burn 90min in 950 ~ 1000 DEG C of flames, and 3A fuses do not fuse;Also the C W Z highest levels of Britain BS6387 are can reach, i.e., C --- burn 3H, W --- water spray in 950 DEG C of flame, Z --- vibrations.
Brief description of the drawings
Fig. 1 be described in the utility model one be embodiment structure diagram.
Reference numeral:
1 core group, 2 insulation pack bands, 3 shielded layers, 4 separation layers, 5 fireprotection layers, 6 outer bands, 7 sheaths;
11 single line cores, 111 copper wire conductors, 112 ceramic insulating layers.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality Novel protected scope.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection;It can be directly connected, can also be indirectly connected by intermediary, can be the connection inside two elements.For For those of ordinary skill in the art, concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.
The utility model provides a kind of fire prevention computer cable, with reference in figure 1, it is characterised in that:The cable bag Include multiple cores and the fire lagging being wrapped in outside multiple cores;Core is formed by two conductor pair twists, each core table Bread is wrapped with protective layer;The fire lagging is followed successively by insulation pack band, shielded layer, separation layer, fireprotection layer, outer from inside to outside Band and sheath.
Further, each core includes two conductors, is extruded with ceramic insulating layer outside conductor, the conductor is oxygen-free copper Silk, ceramic insulating layer are made of ceramic silica cement, and the insulating materials has excellent insulation performance, volume resistivity >=2 × 1015 Ω cm, breakdown strength >=20kv/mm, gradual ceramic after combustion is inorganic compounding mineral oxides every Oxygen packing material, point is not, smokeless, produced without pernicious gas, fire prevention, excellent fire retarding performance, and high temperature resistant is hard up to 2000 DEG C Hard ceramic armor housing can bear to spray, shake, and be purely inorganic mineral oxides after burning, and insulation, heat insulation are shown Write, spray, the shake of CWZ grades of the A levels and BS6387 highest levels of 950 ~ 1100 DEG C × more than 180min can be passed through Dynamic test requirement, but core is distinguished using numeral.
In one embodiment, each core includes two conductors, is extruded with ceramic insulating layer outside conductor, conductive material is Copper free wire, 0.5-4mm2 is using a kind of conductor or two class conductors.Ceramic insulating layer is made of ceramic silica cement, and ceramics are absolutely Ratio between the thickness of edge layer and the diameter of conductor is 1:2-6, preferable preferably ratio is 1:3-4.35;Two conductor strands As core, the diameter of core is more than the sum of two conductor diameters, and in two conductors, one and the diameter ratio of another are 1: 1-3, the ratio for having choosing are 1:1 and 1:2.7;Each core surface is all provided with color band.Due to some cores of computer cable, this A little cores are arranged according to certain regulation, its exterior fire lagging then wraps up, protects and prevent fires layer by layer so that calculates Electric cable has excellent electrical insulating property, while high temperature resistant and low temperature, Long-term service temperature -40~200 DEG C, service life can Up to 70 years.
In one embodiment, 7 cores are equipped with cable, one of core is centrally-disposed, remaining 6 line Core arranges in the direction of the clock around the single line core of center, and outermost layer is twisted to for dextrad.Two conductor strands become core, During two conductor pair twists, pair twist pitch is 20-30mm, and preferable pair twist pitch is 25mm.
Further, the insulation pack band carries out band using alkali-free glass band, and alkali-free glass band is two layers here, is played Heat-insulated effect;Shielded layer is aluminum pipe shielded layer, and insulation pack band shape is coated on using the aluminum pipe of a diameter of 1.0-1.5mm Into;Separation layer uses thickness to be extruded for the PE separation sleeves of 1mm and forms.
Further, the aluminum pipe shielded layer extrudes at least one layer of aluminum pipe outside insulation pack band;Individual layer aluminum pipe is extruded, Then aluminum tube surfaces set the lines of water wave-shaped;Double-deck aluminum pipe is extruded, the hole in matrix, two layers of aluminium are arranged with each layer of aluminum pipe Matrix hole between pipe shields mutually setting.Aluminum pipe provides a uniform electric field, which can be in voltage multiplication The permission length between motor and driver is increased before;The use of high-strength insulating material so that cable can bear by The huge voltage peak caused by reflection(2-3X);Aluminium sheath plays a kind of effective shielding action, so as to reduce adjacent electricity Crosstalk between road;Aluminium sheath is a kind of low-impedance path, and the high frequency noise that can be prevented is diffused into the power grid on ground.Shielding Layer both plays the role of suppression electromagnetic wave and externally launches, and but also as the passage of short circuit current flow, can play the protection of neutral core Effect.
In another embodiment, fireprotection layer is formed by mixture coating, and the mixture is by hydrate and sodium metasilicate According to percentage by weight 1:1-1.85 is mixed, and the hydrate is hydrated using magnesium hydroxide hydrate or aluminium hydroxide Thing;Since mixture contains a large amount of aluminium hydroxide hydrates(Or magnesium hydroxide hydrate), decompose during high temperature and produce large quantity of moisture Water utilities is formed, so as to play the role of cooling and fireproof.While extruding fireprotection layer, go out after die orifice while overlapping around height of double-baging Fire-retardant band, drips to prevent fire-proof mud and overflows.Fireprotection layer is coated with band, and the band is fire-retardant band;Overcoat Layer is made of flame-proof polyethylene or low smoke and zero halogen sheath material, and jacket layer is extruded in fire-retardant band surface, thickness 2-5mm.
Specific embodiment of the utility model is described in detail above, but it is intended only as example, and this practicality is new Type is not restricted to particular embodiments described above.To those skilled in the art, it is any that the utility model is carried out Equivalent modifications and substitute also all among the category of the utility model.Therefore, the spirit and model of the utility model are not being departed from Lower made impartial conversion and modification are enclosed, should all be covered in the scope of the utility model.

Claims (5)

1. one kind fire prevention computer cable, it is characterised in that:The cable includes multiple cores and is wrapped in outside multiple cores Fire lagging;
Core is formed by two conductor pair twists, each core is coated with protective layer;
The fire lagging is followed successively by insulation pack band, shielded layer, separation layer, fireprotection layer, outer band and sheath from inside to outside.
A kind of 2. fire prevention computer cable according to claim 1, it is characterised in that:Core by two conductor strands and Into the outside of conductor is extruded with ceramic insulating layer, and the conductor is copper free wire, and ceramic insulating layer uses ceramic silica cement It is made, the ratio between the thickness of ceramic insulating layer and the diameter of conductor is 1:2-6;
Two conductor strands become a core, and the diameter of core is more than the sum of two conductor diameters;
Each core surface is all provided with color band.
A kind of 3. fire prevention computer cable according to claim 1, it is characterised in that:The insulation pack band uses alkali-free Glass tape carries out band;
Shielded layer is aluminum pipe shielded layer, is coated on what is formed outside insulation pack band using the aluminum pipe of a diameter of 1.0-1.5mm;
Separation layer uses thickness to be extruded for the PE separation sleeves of 1mm and forms.
A kind of 4. fire prevention computer cable according to claim 1, it is characterised in that:Fireprotection layer is coated with bag Band, the band are fire-retardant band;
Jacket layer is made of flame-proof polyethylene or low smoke and zero halogen sheath material, and jacket layer is extruded in fire-retardant band surface, and thickness is 2-5mm。
A kind of 5. fire prevention computer cable according to claim 1, it is characterised in that:7 cores are equipped with cable, wherein One core is centrally-disposed, and core of remaining 6 core around center is set.
CN201721282212.9U 2017-09-30 2017-09-30 One kind fire prevention computer cable Active CN207282177U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721282212.9U CN207282177U (en) 2017-09-30 2017-09-30 One kind fire prevention computer cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721282212.9U CN207282177U (en) 2017-09-30 2017-09-30 One kind fire prevention computer cable

Publications (1)

Publication Number Publication Date
CN207282177U true CN207282177U (en) 2018-04-27

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CN201721282212.9U Active CN207282177U (en) 2017-09-30 2017-09-30 One kind fire prevention computer cable

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107622819A (en) * 2017-09-30 2018-01-23 上海朗达电缆(集团)有限公司 One kind fire prevention computer cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107622819A (en) * 2017-09-30 2018-01-23 上海朗达电缆(集团)有限公司 One kind fire prevention computer cable

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