CN207731716U - A kind of high practicability fireproof cable - Google Patents

A kind of high practicability fireproof cable Download PDF

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Publication number
CN207731716U
CN207731716U CN201820155887.5U CN201820155887U CN207731716U CN 207731716 U CN207731716 U CN 207731716U CN 201820155887 U CN201820155887 U CN 201820155887U CN 207731716 U CN207731716 U CN 207731716U
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China
Prior art keywords
cable
fireproof
layer
fire
high practicability
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CN201820155887.5U
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Inventor
于海鹏
于廷忠
李云海
宫家亮
刘远峰
王丽艳
李景和
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Dalian Pop Cable Group Co Ltd
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Dalian Pop Cable Group Co Ltd
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Abstract

The utility model provides a kind of high practicability fireproof cable, including a plurality of insulated core;The insulated wire cores include anaerobic copper conductor, and outside the anaerobic copper conductor, from-inner-to-outer is coated with ceramic fire resisting composite band flame retardant coating and crosslinked polyetylene insulated layer successively;The more insulated wire cores twisted synthesizing cables, it is extruded with fire prevention filling and fireproof layer in stranding gap and cable core outer layer, wrapped low-smoke non-halogen flame-retardant glass wool cloth band outside the fireproof layer, wrapped galvanized steel strip outside the low-smoke non-halogen flame-retardant glass wool cloth band, the galvanized steel strip extrude the low smoke and zero halogen sheath of high oxygen index (OI) outside.The design of high practicability fireproof cable structure may make cable under the premise of meeting fire savety, it is soft as common cable when cable laying, and production process is able to apparent simplification, practicability is high, is a kind of ideal to be laid in crowded place or the safety type power cable of building.

Description

A kind of high practicability fireproof cable
Technical field
The utility model is related to cable technology more particularly to a kind of high practicability fireproof cables.
Background technology
With the rapid development of the national economy, the electric wire as national economy aorta, the requirement for quality is got over Come higher, the dosage and use scope of high-quality electric wire are increasing.This point, in recent years, for skyscraper, The electric wire of rail traffic and crowded place laying is particularly visible.
In recent years, fireproof cable is because of its superior security performance, it has also become emergency system, fire-fighting circuit must siding, this Kind of cable in flame calcination, still can within 3 hours continued power, and circuit can bear a degree of spray and hit It hits, can be personnel and the property safety of Emergency time, provide a strong guarantee, so such cable dosage is also increasing.
With the increase of the market demand, developing focus is placed on fireproof cable by more and more cable manufacturers, with And generate fireproof cable model and type be also varied, in order to ensure fireproofing of cable security performance, these are novel In the structure of fireproof cable, it will usually have some special structures, such as copper pipe, aluminum pipe, minerals fire-proof mud, these materials or its Although the fire resistance that knockdown structure has all had, for its finished cable in laying, mounting and installation personnel are generally anti- Reflect, than conventional YJV hard more of YJV22 types cable, it is not easy to be bent, laying is difficult, and wire body is easy in laid processes injury, And fireproof cable is generally configured with the terminal attachment mating with protective metal shell when installing, and while overall cost high cost, can make At the crowded of distribution box space, it is unfavorable for internal heat dissipating.
Utility model content
The purpose of this utility model is that the problem of for being encountered in the practical laid processes of current fireproof cable, in conjunction with anti- The security performance requirement of thermoelectricity cable proposes that a kind of high practicability fireproof cable, the height are practical using the fire performance of special material Property fireproof cable it is environmentally protective, burning does not generate harmful halogen gas, and electric property is superior, when cable laying and common cable one Sample is soft, and when installation does not need accessory kit, and production process is able to apparent simplification, and practicability is high.
To achieve the above object, the technical solution adopted in the utility model is:A kind of high practicability fireproof cable, including it is more Root insulated wire cores;
The insulated wire cores include anaerobic copper conductor, and outside the anaerobic copper conductor, from-inner-to-outer is coated with ceramic successively Fire resisting composite band flame retardant coating and the crosslinked polyetylene insulated layers of XLPE (XLPE insulating layers);
The more insulated wire cores twisted synthesizing cables are extruded with fire prevention filling and fire prevention in stranding gap and cable core outer layer Restrictive coating using squash type technique, while extruding fire prevention filling and fireproof layer, outside the fireproof layer wrapped low cigarette without Halogen fireproof glass silk strap, wrapped galvanized steel strip outside the low-smoke non-halogen flame-retardant glass wool cloth band extrude outside the galvanized steel strip The low smoke and zero halogen sheath of high oxygen index (OI).
Further, the anaerobic copper conductor is the conductor that solid or stranded copper wire is twisted.
Further, the ceramic fire resisting composite band flame retardant coating include two layers of pyroceram silk strap, described two layers Pyroceram silk cloth interband is pasted with one layer of Ceramic silicon rubber.Ceramic fire resisting composite band softness high resilience, longitudinal wrap and Around-packing technology is all very convenient, can reduce the production cost of cable, improves production efficiency, meanwhile, the ceramic fire resisting composite band Material can form ceramic-like shell, not melt, not drip under 300 DEG C~2800 DEG C flame calcinations, effectively the extraneous fire of isolation Flame, technique of the existing wrapped mica tape of can effectively replace as electric wire flame retardant coating.
Further, the crosslinked polyetylene insulated layer carries out color separation using color masterbatch coloring mode or addition colour band mode. The insulated wire cores twisted synthesizing cable that color separation is completed, cabling process do not add filling, and core outer layer is dredged around layer of non-woven fabric band, avoided Cable core is loose.The fire prevention filling of cable core and the fireproof layer on cable core surface are through extruding machine using extruding Formula mold squeezes out jointly, before core enters mold, the wrapped nonwoven fabric belts for preventing core loose before removing, to ensure to prevent Fire filling is with the completion of fireproof layer and closely.
Further, the fire prevention filling and fireproof layer are the oxygen barrier layered material of ceramic fire-resistant polyolefin, the ceramics Changing the oxygen barrier layered material of fire-resistant polyolefin is had low with plastic material similar in low smoke and zero halogen sheath material hardness under a kind of normal temperature state Cigarette halogen-free flameproof performance can form hard armour body, be provided simultaneously with good insulation performance, ceramic-like after by flame calcination Inside armour body, fine and close cellular fine holes can be formed, good thermal insulation, fire insulation, heat-insulated effect can be played.
Further, the galvanized steel strip is two layers.The wrapped cooling layer of the low-smoke non-halogen flame-retardant glass wool cloth band with The gear fire bed of the double-deck zinc-plated steel-tape armouring, both as synthesis, common protective wire core inner so that by flame calcination, hit In the case of hitting, spraying, flame retardant coating, fire prevention filling, fire-proof cladding are effectively fixed, do not fall off, to ensure wire body fire proof construction Safely, effectively, stablize.
Further, the low smoke and zero halogen sheath of the high oxygen index (OI) is high oxygen index (OI) low-smoke and halogen-free flame retardant polyolefin jacket Material.
The utility model high practicability fireproof cable is simple and reasonable for structure, compact, has compared with prior art following Advantage:
(1) high practicability fireproof cable mounting and installation is easy, before equally meeting fire safety circuit integrity demands It puts, using the characteristic of new material, has abandoned in applicable fire cable, copper sheath, aluminium sheath, the fire prevention of the materials such as fire-proof mud Layer, above-mentioned metal sheath is not usually annealed and longitudinal direction is coated among the construction of cable, so that cable is whole compared with common cable Compare, the flame retardant coating there are larger stress, difficulty or ease bending, fire-proof mud structure is pureed material when squeezing out, but through dry water After dividing evaporation, the hard bulk as cement can be formed, cable is even more difficulty or ease bending, and the design of the utility model utilizes pottery The oxygen barrier material material of porcelain polyolefin, while extruding filling and sheath so that cable has and common YJV/YJV22 in laying The identical bending property of type cable, can greatly reduce manpower and materials.
(2) installation cost is low, and more conventional fireproof cable compares, and the utility model high practicability fireproof cable, which can be made, to be greatly enhanced Degree can accomplish that whole is laid, non junction, meanwhile, high practicability fireproof cable enters the terminal location of distribution box, need not install Terminal attachment can ensure the space of distribution box, be conducive to distribution box space interior on the basis of reducing labor saving financial resources Heat dissipation, to reduce Electrical Safety hidden danger,
(3) high practicability fireproof cable outer diameter is small, reduces cable and occupies crane span structure space, improves circuit heat-sinking capability, this reality It is close identical as outside common cable with a kind of novel outer diameter of high practicability fireproof cable, not no complicated composite structure, Jin Erke Ensure that high practicability fireproof cable lay that space is abundant in crane span structure, is conducive to the scattered of wire body itself and its surrounding other cables Heat, side promote electrical safety and use the line time limit.
(4) the utility model high practicability fireproof cable is a kind of outstanding environment-friendly products, itself has both fire resisting, resistance It fires, the environmental protection characteristic of low cigarette, Halogen, is the selection of user, strong environmental protection condition support is provided, trouble and worry is solved.
To sum up, a kind of high practicability fireproof cable of the utility model is simple in structure, cable electrical performance, fire-retardant, fire resistance Can be high, cable service life is long, and low smoke, zero halogen is environmentally protective, and installation cost is low, installation is simple and convenient, is a kind of ideal It is laid in crowded place or the safety type power cable of building.
Description of the drawings
Fig. 1 is a kind of high practicability fireproof cable schematic cross-section of the utility model.
Specific implementation mode
The utility model is further illustrated with reference to embodiments:
Embodiment
Fig. 1 is a kind of high practicability fireproof cable schematic cross-section of the utility model.
Present embodiment discloses a kind of high practicability fireproof cables, as shown in Figure 1, including 5 insulated wire cores, the insulation Core includes anaerobic copper conductor 1, and anaerobic copper conductor 1 is the conductor that stranded copper wire is twisted, and copper wire is that purity is more than 99.98% Red copper.It is coated with ceramic fire resisting composite band flame retardant coating 2, crosslinked polyetylene insulated layer 3 successively outside anaerobic copper conductor 1.
5 insulated wire cores twisted synthesizing cables are extruded in stranding gap and cable core outer layer using squash type technique simultaneously Fire prevention filling and fireproof layer 4, the fire prevention filling and fireproof layer 4 are the oxygen barrier layered material of ceramic fire-resistant polyolefin, institute State the oxygen barrier layered material of ceramic fire-resistant polyolefin be under a kind of normal temperature state with plastic material similar in low smoke and zero halogen sheath material hardness, Have low-smoke non-halogen flame-retardant performance, after by flame calcination, hard armour body can be formed, be provided simultaneously with good insulation performance, Inside ceramic-like armour body, fine and close cellular fine holes can be formed, good thermal insulation, fire insulation, heat-insulated effect can be played;Institute State wrapped low-smoke non-halogen flame-retardant glass wool cloth band 5 outside fireproof layer 4, the cooling layer as cable;Cooling layer is outer around double-baging Galvanized steel strip 6, protective layer and gear fire bed as cable;The low smoke and zero halogen sheath 7 that high oxygen index (OI) is extruded outside gear fire bed, as electricity The flame-retardant sheath of cable.The design of the present embodiment high practicability fireproof cable structure may make cable before meeting fire savety It puts, when cable laying is soft as common cable, and production process is able to apparent simplification, and practicability is high.
The present embodiment high practicability fireproof cable is environmentally protective, and burning does not generate harmful halogen gas, and electric property is superior, Weighted value >=4.3 Halogen performance pH, the μ S/mm of conductivity weighted value≤10, minimum light transmittance >=60% of low cigarette characteristic, electrical resistance Can superior, fire resistance can realize 950 DEG C/180min (required in existing national standard GB/T19666 experimental temperature be 750 DEG C/ 90min), can meet in 8491 standard of BS 6387 and BS about cable fire resisting, spray, shock circuit full experiment, together When cable laying it is convenient and simple, be no different with common cable, effectively release the big bed of nails of applicable fire cable laying difficulty, together When do not need accessory kit, release distribution box inner space is economical and practical, has compared with high practicability.
The utility model is not limited to the above embodiment a kind of recorded high practicability fireproof cable, and wherein oxygen-free copper is led The change of body structure, the change of each layer thickness both are within the protection scope of the present invention.
Finally it should be noted that:The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it System;Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should Understand:It still can be with technical scheme described in the above embodiments is modified, either to which part or whole Technical characteristic carries out equivalent replacement;And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new The range of each embodiment technical solution of type.

Claims (5)

1. a kind of high practicability fireproof cable, which is characterized in that including a plurality of insulated core;
The insulated wire cores include anaerobic copper conductor, and outside the anaerobic copper conductor, from-inner-to-outer is coated with ceramic fire resisting successively Composite band flame retardant coating and crosslinked polyetylene insulated layer;
A plurality of insulated core twisted synthesizing cable is extruded with fire prevention filling and fireproof in stranding gap and cable core outer layer Layer, wrapped low-smoke non-halogen flame-retardant glass wool cloth band outside the fireproof layer, the low-smoke non-halogen flame-retardant glass wool cloth band it is outer around Packet galvanized steel strip, the galvanized steel strip extrude the low smoke and zero halogen sheath of high oxygen index (OI) outside.
2. high practicability fireproof cable according to claim 1, which is characterized in that the anaerobic copper conductor is solid or multiply The conductor that copper wire is twisted.
3. high practicability fireproof cable according to claim 1, which is characterized in that the ceramic fire resisting composite band flame retardant coating Including two layers of pyroceram silk strap, two layers of pyroceram silk cloth interband is pasted with one layer of Ceramic silicon rubber.
4. high practicability fireproof cable according to claim 1, which is characterized in that fire prevention filling is ceramics with fireproof layer Change the oxygen barrier layered material of fire-resistant polyolefin.
5. high practicability fireproof cable according to claim 1, which is characterized in that the galvanized steel strip is two layers.
CN201820155887.5U 2018-01-30 2018-01-30 A kind of high practicability fireproof cable Active CN207731716U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820155887.5U CN207731716U (en) 2018-01-30 2018-01-30 A kind of high practicability fireproof cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110364298A (en) * 2019-07-27 2019-10-22 河南华星电线电缆有限公司 A kind of fireproof cable
CN111070821A (en) * 2019-12-23 2020-04-28 江苏吉润住宅科技有限公司 Fireproof cellular board
CN112700920A (en) * 2020-12-16 2021-04-23 刘金桥 Self-adaptive rigid-flexible dual-state fireproof cable

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110364298A (en) * 2019-07-27 2019-10-22 河南华星电线电缆有限公司 A kind of fireproof cable
CN111070821A (en) * 2019-12-23 2020-04-28 江苏吉润住宅科技有限公司 Fireproof cellular board
CN112700920A (en) * 2020-12-16 2021-04-23 刘金桥 Self-adaptive rigid-flexible dual-state fireproof cable
CN112700920B (en) * 2020-12-16 2022-02-22 新疆胡杨线缆制造有限公司 Self-adaptive rigid-flexible dual-state fireproof cable

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