CN206726801U - A kind of novel flexible fire safe type cable - Google Patents

Abstract

It the utility model is related to field of cable technology, more particularly to a kind of novel flexible fire safe type cable, including drainage thread, conductor, inner insulating layer, external insulation layer, packed layer, lapping layer, insulating barrier, separation layer, restrictive coating, outer jacket, signal wire and signal wire sheath, conductor outer cladding inner insulating layer, center sets drainage thread, the outer setting signal line of conductor, signal wire outer cladding signal wire sheath, common cladding lapping layer outside conductor and signal wire, gap in lapping layer sets packed layer, lapping layer outsourcing insulating layer coating, insulating barrier outer cladding separation layer, separation layer outer cladding restrictive coating, restrictive coating outer cladding outer jacket.Compared with prior art, novel flexible fire safe type cable of the present utility model has good heat and flame performance and excellent bending resistance torsional property, practicality height.

Description

A kind of novel flexible fire safe type cable

【Technical field】

Field of cable technology is the utility model is related to, more particularly to a kind of novel flexible fire safe type cable.

【Background technology】

Fire-resisting cable is widely used the market with densely populated place, skyscraper, hospital, cinema, hotel, amusement The places such as place, underground railway, undergrond street, large-scale power station and important industrial and mining enterprises.Traditional fire-resisting cable structure is relatively simple, Cable fire performance is not ideal enough, when causing to occur fire, core short circuit phenomenon occurs, or because of cigarette caused by cable own combustion Phenomena such as gas damages to human body happens occasionally.

The more structure not flame resistant for employing thermal insulation difference of traditional cable.Therefore, when fire occurs, this kind of electricity Cable is intolerant to flame baking, it is difficult to completely cuts off flame, therefore flame is easy to ablation these protective layers, makes cable directly by flame Calcination, cable is caused to be worked because of short circuit, and the distortion resistance deficiency of common cable, influenceed also by distortion for a long time Shorten the service life of cable.Therefore, a kind of twist-resistant type flame proof electrical that longer run time can be maintained in flame combustion Cable is the inevitable choice of hommization society.

【Utility model content】

In order to overcome above mentioned problem, the utility model proposes the good novel flexible of a kind of distortion of resist bending, fire resistance is resistance to Fire type cable.

The utility model solves a kind of technical scheme that above-mentioned technical problem provides：A kind of novel flexible fire safe type is provided Cable, including an at least drainage thread, more conductors, multilayer inner insulating layer, multilayer external insulation layer, an at least packed layer, at least One layer of lapping layer, at least one layer of insulating barrier, at least one layer of separation layer, at least one layer of restrictive coating, at least one layer of outer jacket, more letters Number line and multilayer signal line sheath, each one layer of inner insulating layer of conductor outer cladding, one layer of external insulation layer of six roots of sensation conductor outer cladding, altogether With one conductor bundle of composition, conductor bundle quantity is three, tangent two-by-two on the outside of three conductor bundles, surrounds a central space, and middle part is empty Between center a piece drainage thread is set, three conductor bundles surround drainage thread in center, on the outside of each two conductor bundle A piece signal wire of tangent setting, the layer signal line sheath of signal wire outer cladding one, outside conductor bundle and signal wire one layer of common cladding around Covering, lapping layer coat conductor bundle, signal wire and drainage thread wherein, and the gap in lapping layer sets packed layer, lapping layer The layer insulating of outer cladding one, one layer of separation layer of insulating barrier outer cladding, one layer of restrictive coating of separation layer outer cladding, restrictive coating outer cladding one Layer outer jacket, lapping layer, insulating barrier, separation layer, restrictive coating, outer jacket are close to close and be arranged concentrically successively from inside to outside.

Preferably, the drainage thread is prepared using the silver-plated copper alloy material containing magnesium.

Preferably, the separation layer is flexible Teflon bellows, and its surface is in bellows-shaped.

Preferably, the conductor is prepared using the Kufil material of argentiferous.

Preferably, the inner insulating layer is prepared using flame retardant type PE materials.

Preferably, the external insulation layer and insulating barrier are prepared using flame retardant type PVC material.

Preferably, the packed layer is prepared using EVA low-temp foaming PURs.

Preferably, the lapping layer is prepared using synthetic mica tape.

Preferably, the signal wire sheath is prepared using TPE thermoplastic elastic materials.

Preferably, the restrictive coating is prepared using polytetrafluoroethylmaterial material.

Compared with prior art, novel flexible fire safe type cable of the present utility model is by setting inner insulating layer, external insulation Layer and insulating barrier, both with good insulation interference free performance, have good heat-insulating flame-retardant performance, can effectively improve cable again Fire resistance, can also continue to normal work even if by fire erosion and is used as power transmission lines or information transmission for a period of time Circuit, win and more sue and labour the time for the transfer of fire-extinguishing and lifesaving, data message.Separation layer is flexible Teflon bellows, its Surface is in bellows-shaped, and bellows-shaped adds the contact area on surface, and by the restrictive coating extrusion process of outer layer, adds CONTACT WITH FRICTION area, hierarchical structure is more firm, and the mistake of internal structure level is effectively reduced during cable movement, dragging Dynamic, safety in utilization is higher, and the life-span is longer, reduces the maintenance cost of user.Outer jacket uses tear-proof silastic material It is prepared, there is superior toughness and bending resistance torsional property, extraneous hard thing can be prevented to destroying cable internal structure, and can Prevent cable from causing mechanical damage to external object in itself.

【Brief description of the drawings】

Fig. 1 is a kind of cross section structure figure of novel flexible fire safe type cable of the utility model；

Diagram：1- drainage threads, 2- conductors, 3- inner insulating layers, 4- external insulation layers, 5- packed layers, 6- lapping layers, 7- insulation Layer, 8- separation layers, 9- restrictive coatings, 10- outer jackets, 11- signal wires, 12- signal wire sheaths.

【Embodiment】

In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used for explaining The utility model, it is not used to limit the utility model.

It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment The relative position being only limitted in given view, rather than absolute position.

In addition, and it can not be managed in the utility model such as relating to the description of " first ", " second " etc. is only used for describing purpose Solve to indicate or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " the One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".It is " more in description of the present utility model It is individual " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.

Referring to Fig. 1, a kind of novel flexible fire safe type cable of the present utility model, including an at least drainage thread 1, more Conductor 2, multilayer inner insulating layer 3, multilayer external insulation layer 4, at least a packed layer 5, at least one layer of lapping layer 6, at least one layer of insulation Layer 7, at least one layer of separation layer 8, at least one layer of restrictive coating 9, at least one layer of outer jacket 10, more signal wires 11 and multilayer signal line Sheath 12.If the wire stranding that every conductor 2 is insulated independently of each other by carried interest forms, one layer of interior insulation of each 2 outer cladding of conductor Layer 3, inner insulating layer 3 are used between each conductor 2 insulate, prevent from disturbing.Per six roots of sensation conductor 2 outer cladding, one layer of external insulation layer 4, altogether With one conductor bundle of composition, the conductor 2 in conductor bundle mutually presses setting, compact-sized, reasonable utilization space.Conductor bundle Quantity is three, tangent two-by-two on the outside of three conductor bundles, surrounds a central space, and the center of central space sets a drainage Line 1, three conductor bundles surround drainage thread 1 in center, and structure design is compact, there is good protection to make drainage thread 1 With the resistance to torsion of firm bending resistance.A piece signal wire 11 of tangent setting on the outside of each two conductor bundle, the quantity of signal wire 11 are three, every letter Number layer signal line sheath 12 of 11 outer cladding of line one, signal wire sheath 12 are used for protection signal line 11, have certain interference free performance. Conductor bundle, signal wire 11 and drainage thread 1 are coated it by one layer of lapping layer 6 of cladding, lapping layer 6 jointly outside conductor bundle and signal wire 11 In, shield, the gap in lapping layer 6 sets packed layer 5, and packed layer 5 is used to stablize the internal structure of lapping layer 6, made Novel flexible fire safe type cable has more globality, and structure is more compact.The layer insulating 7 of 6 outer cladding of lapping layer one, outside insulating barrier 7 Coat one layer of separation layer 8, separation layer 8 outer cladding, one layer of restrictive coating 9, restrictive coating 9 outer cladding, one layer of outer jacket 10, lapping layer 6, absolutely Edge layer 7, separation layer 8, restrictive coating 9, outer jacket 10 are close to close and be arranged concentrically successively from inside to outside, and stabilized structure is compact, has Good bending resistance and torsional property.

Specifically, the drainage thread 1 is prepared using the silver-plated copper alloy material containing magnesium, drainage thread 1 is used as shielding line, Electromagnetic interference can effectively be reduced.Silver-plated copper alloy containing magnesium can reach Kufil equal performance, and cost is far below Kufil Gold, it can effectively reduce cost.Drainage thread 1 is used in cabling process, since instrument, by junction box, then arrives control Room wiring cabinet, finally it is aggregated into working earthing bus-bar and enters earthed system.

The conductor 2 is prepared using the Kufil material of argentiferous, and transmission performance is superior.The inner insulating layer 3 is adopted It is prepared with flame retardant type PE materials, external insulation layer 4 and insulating barrier 7 are prepared using flame retardant type PVC material.Inner insulating layer 3, External insulation layer 4 and the existing good insulation interference free performance of insulating barrier 7, ensure that the transmission performance of conductor 2 is superior, while have good Good heat-insulating flame-retardant performance, the fire resistance of cable can be effectively improved, normal work one can be also continued to even if by fire erosion The section time is used as power transmission lines or information transmission circuit, is that the transfer of fire-extinguishing and lifesaving, data message is won and more sued and laboured Time.The packed layer 5 is prepared using EVA low-temp foaming PURs, can effectively stablize cable internal structure, is reduced internal The physics of structure is rocked to harmful effect caused by cable work and quality.Lapping layer 6 is prepared using synthetic mica tape, good Resistance to elevated temperatures and flame resistance energy, and there is good pliability, the internal structure of cable can be played good Protective effect, and improve the globality and practicality of cable.

The separation layer 8 is flexible Teflon bellows, and its surface is in bellows-shaped, and bellows-shaped adds connecing for surface Contacting surface is accumulated, and by the extrusion process of restrictive coating 9 of outer layer, adds CONTACT WITH FRICTION area, hierarchical structure is more firm, in cable The changing of the relative positions of internal structure level is effectively reduced during mobile, dragging, safety in utilization is higher, and the life-span is longer, and reducing makes The maintenance cost of user.Signal wire 11 is prepared using Copper-magnesium alloy material, has good signal transmission performance, cost It is low.Signal wire sheath 12 is prepared using TPE thermoplastic elastic materials, has high resiliency, ageing-resistant, oil resistivity is every excellent Different in nature energy, convenient manufacture processing, environment-protecting and non-poisonous again.

The restrictive coating 9 is prepared using polytetrafluoroethylmaterial material, have excellent chemical stability, corrosion resistance, Sealing, high lubrication non-stick, electrical insulating property and good ageing resistance, can effectively protect cable internal structure not by it is extraneous because The infringement of element.Outer jacket 10 is prepared using tear-proof silastic material, has superior toughness and bending resistance torsional property, both It can prevent extraneous hard thing from preventing cable from causing mechanical damage to external object in itself to destroying cable internal structure, and can.

Compared with prior art, novel flexible fire safe type cable of the present utility model is by setting inner insulating layer 3, external insulation Layer 4 and insulating barrier 7, both with good insulation interference free performance, have good heat-insulating flame-retardant performance, can effectively improve electricity again The fire resistance of cable, passed for a period of time as power transmission lines or information even if can also continue to normal work by fire erosion Circuit is passed, wins and more sues and labours the time for the transfer of fire-extinguishing and lifesaving, data message.Separation layer 8 is flexible Teflon bellows, Its surface is in bellows-shaped, and bellows-shaped adds the contact area on surface, and by the extrusion process of restrictive coating 9 of outer layer, increases CONTACT WITH FRICTION area is added, hierarchical structure is more firm, and internal structure level is effectively reduced during cable movement, dragging The changing of the relative positions, safety in utilization is higher, and the life-span is longer, reduces the maintenance cost of user.Outer jacket 10 uses tear-proof silicon rubber Glue material is prepared, and has superior toughness and bending resistance torsional property, and extraneous hard thing can be prevented to destroying cable internal junction Structure, and can prevent cable from causing mechanical damage to external object in itself.

Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, Every any modification made within design of the present utility model, equivalent substitution and improvement etc. should be included in the utility model Scope of patent protection in.

Claims (10)

1. A kind of 1. novel flexible fire safe type cable, it is characterised in that：Including exhausted in an at least drainage thread, more conductors, multilayer Edge layer, multilayer external insulation layer, an at least packed layer, at least one layer of lapping layer, at least one layer of insulating barrier, at least one layer of separation layer, At least one layer of restrictive coating, at least one layer of outer jacket, more signal wires and multilayer signal line sheath, in each one layer of conductor outer cladding Insulating barrier, one layer of external insulation layer of six roots of sensation conductor outer cladding, a conductor bundle is collectively constituted, conductor bundle quantity is three, three conductors It is tangent two-by-two on the outside of beam, a central space is surrounded, the center of central space sets a drainage thread, and three conductor bundles will draw Streamline surrounds a piece signal wire of tangent setting, the layer signal line of signal wire outer cladding one on the outside of center, each two conductor bundle Conductor bundle, signal wire and drainage thread are coated it by one layer of lapping layer of cladding, lapping layer jointly outside sheath, conductor bundle and signal wire In, the gap setting packed layer in lapping layer, the layer insulating of lapping layer outer cladding one, one layer of separation layer of insulating barrier outer cladding, One layer of restrictive coating of separation layer outer cladding, one layer of outer jacket of restrictive coating outer cladding are lapping layer, insulating barrier, separation layer, restrictive coating, outer Sheath is close to close and be arranged concentrically successively from inside to outside.
2. 2. novel flexible fire safe type cable as claimed in claim 1, it is characterised in that the drainage thread is used containing the silver-plated of magnesium Cu alloy material is prepared.
3. 3. novel flexible fire safe type cable as claimed in claim 1, it is characterised in that the separation layer is flexible Teflon ripple Line pipe, its surface are in bellows-shaped.
4. 4. novel flexible fire safe type cable as claimed in claim 1, it is characterised in that the conductor uses the Kufil of argentiferous Golden material is prepared.
5. 5. novel flexible fire safe type cable as claimed in claim 1, it is characterised in that the inner insulating layer uses flame retardant type PE Material is prepared.
6. 6. novel flexible fire safe type cable as claimed in claim 1, it is characterised in that the external insulation layer and insulating barrier use Flame retardant type PVC material is prepared.
7. 7. novel flexible fire safe type cable as claimed in claim 1, it is characterised in that the packed layer is sent out using EVA low temperature Bubble PUR is prepared.
8. 8. novel flexible fire safe type cable as claimed in claim 1, it is characterised in that the lapping layer uses synthetic mica tape It is prepared.
9. 9. novel flexible fire safe type cable as claimed in claim 1, it is characterised in that the signal wire sheath is using TPE warm Thermoplastic elastomer material is prepared.
10. 10. novel flexible fire safe type cable as claimed in claim 1, it is characterised in that the restrictive coating uses polytetrafluoroethyl-ne Alkene material is prepared.