CN208521667U - A kind of intelligent temperature measurement flexible fire-proof cable - Google Patents

Abstract

The utility model discloses a kind of intelligent temperature measurement flexible fire-proof cables, are related to field of cable technology.It includes conductor, the conductor, outer wrapped at least two layers of fire-resistant isinglass belt, the outer extruded insulation layer of mica tape, intelligent temperature measurement optical fiber is placed at cable core center, and fireprotection layer, wrapped glass fibre belt outside fireprotection layer are extruded outside cable core, glass fibre belt is externally provided with stainless steel armor, and nonmetallic oversheath is extruded outside stainless steel armor.The utility model has excellent fire-proof insulation performance, and by placing intelligent temperature measurement optical fiber at cable core center, can Real-time Feedback monitor cable operating temperature, it can be to the generation that cable is prevented accident in advance according to monitoring temperature, occur quick and precisely judge fire location when fire, provides accurate location for fire extinguishing.

Description

A kind of intelligent temperature measurement flexible fire-proof cable

Technical field

The utility model relates to field of cable technology more particularly to a kind of intelligent temperature measurement flexible fire-proof cables.

Background technique

The normal operation of fire-fighting emergent equipment is for safety evacuation, control fire spreading, reduction fire when fire occurs Disaster loss mistake has highly important effect.Therefore the electrical power distribution route distribution system of fire-fighting emergent equipment should meet reliability, resistance to Fire, safety, the requirement of validity, science, fire-fighting equipment power supply will not be interrupted and can pass through cable when guaranteeing fire Temperature measuring equipment accurate judgement fire location is put out a fire in time, is guaranteed personal safety, and guarantees duration of power supply, it is ensured that power supply quality is simultaneously It is simple to make every effort to system wiring, with low investment, operating cost is low, the fireproof cable that has been the invention, and traditional rigidity fireproof cable is Outer layer makees insulating materials using seamless copper pipe sheath, intermediate filling magnesia crystal powder, and conductor is the cable of sub-thread copper rod composition, This cable investment of production equipment is at high cost, and product is unable to long length production, valuable product, joint moisture-sensitive, product Bendability difference is to cause that difficulty of construction is big and construction workload is larger, and using non metallic sheath, fire protecting performance can not guarantee, and And a large amount of smog are generated after burning, unsuitable safety evacuation.For the inherent shortcoming for solving traditional fireproof cable, occurred later Flexible fire-proof cable, and so-called " flexible fire-proof cable " is actually the derivation of a kind of " fire-resisting cable " now, that is to say, that The outer winding of band-type object of stranded conductor is as cable insulation.It is band-like in cable after fire occurs after insulating layer uses ribbon Object will will become powdered, and the powder is easy to fall off to touch phase so as to cause cable core and core, and cannot prevent thing in advance Therefore generation, prevent trouble before it happens, fire location cannot be found in time.

Summary of the invention

The purpose of this utility model is exactly to provide a kind of intelligent temperature measurement flexible fire-proof cable the shortcomings that overcoming the prior art, , by placing intelligent temperature measurement optical fiber at cable core center, insulating layer and fireprotection layer by using porcelain mineral composites and are adopted for it Protective metal shell is replaced with nonmetallic oversheath.Existing cable is solved after fire occurs, cable core is touched mutually and fired with core A large amount of smog are generated after burning, the technical issues of generation that cannot be prevented accident in advance, fire location cannot be found in time.

To achieve the above objectives, the present invention adopts the following technical solutions: a kind of intelligent temperature measurement flexible fire-proof cable, packet Include conductor, wrapped at least two layers of fire-resistant isinglass belt outside the conductor, the outer extruded insulation layer of mica tape, the wrapped conductor for crossing insulating layer Mutually intelligent temperature measurement optical fiber is placed at twisted composition cable core, cable core center, extrudes fireprotection layer outside cable core, wrapped glass fibre belt outside fireprotection layer, Glass fibre belt is externally provided with stainless steel armor, and oversheath is extruded outside stainless steel armor.

As a kind of improvement of the utility model, the conductor is pressed by stranded copper wire to be twisted, and it is soft to increase cable Property, facilitate laying.

As a kind of improvement of the utility model, high fire-retardance asbestos cord is filled in the gap between the cable core and fireprotection layer.

As a kind of improvement of the utility model, the insulating layer and fireprotection layer are porcelain mineral composites, should Porcelain mineral composites thermal conductivity coefficient is low, prevents outside heat from being passed to conductor wire core when fire occurs, and guarantees conductor wire The current-carrying capacity of core is unlikely to decline to a great extent.

As a kind of improvement of the utility model, the oversheath be light transmittance up to 90% or more low smoke, zero halogen material, There is better light transmittance after burning, facilitates evacuating personnel when fire.

As a kind of improvement of the utility model, the intelligent temperature measurement optical fiber uses active pay-off device, ensure that stranding Optical fiber is not pulled off in the process.

The beneficial effects of the utility model are, by placing intelligent temperature measurement optical fiber, Real-time Feedback monitoring at cable core center Cable operating temperature can prevent trouble before it happens to the generation that cable is prevented accident in advance according to monitoring temperature, effective protection electricity The safety of cable and route occurs quick and precisely judge fire location when fire, provides accurate location for fire extinguishing；Insulating layer and anti- Fire bed is by using porcelain mineral composites, when fire occurs, has blocked the transmitting of flame and ignition temperature, has realized cable Fire-proof function；Protective metal shell is replaced using nonmetallic oversheath, makes cable more soft, reduces construction laying difficulty, and non- There is better light transmittance after metal sheath burning, facilitates evacuating personnel when fire, structure is simple, small in size, easy to make, valence Lattice are cheap.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

In figure: 1, conductor, 2, mica tape, 3, insulating layer, 4, intelligent temperature measurement optical fiber, 5, fireprotection layer, 6, glass fibre belt, 7, stainless Steel armor, 8, nonmetallic oversheath.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and cannot be construed to the utility model Limitation.

It should be noted that the positional terms such as inside and outside in the utility model embodiment, be only each other relative concept or It is reference with the normal operating condition of product, and should not be regarded as restrictive.

As shown in Figure 1, a kind of intelligent temperature measurement flexible fire-proof cable, including conductor 1, conductor 1 press twisted for stranded copper wire It forms, increases cable flexibility, facilitate laying.Wrapped at least two layers of fire-resistant isinglass belt 2 outside conductor 1, the outer extruded insulation of mica tape 2 Layer 3, the twisted composition cable core of wrapped 1 phase of conductor for crossing insulating layer 3 of at least one, the present embodiment want root for three, and cable core center is placed Intelligent temperature measurement optical fiber 4, intelligent temperature measurement optical fiber 4 use active pay-off device, ensure that optical fiber is not pulled off in cabling process.Cable core Fireprotection layer 5 is extruded outside, high fire-retardance asbestos cord is filled in the gap between cable core and fireprotection layer 5, and wrapped glass fibre belt 6 outside fireprotection layer 5 rises To the effect of fixed fireprotection layer 5.Glass fibre belt 6 is externally provided with stainless steel armor 7, special armoring material increase cable resistance to compression, The functions such as protection against rodents occur that good buffer action can be played when fire.Oversheath 8, oversheath 8 are extruded outside stainless steel armor 7 For using having corrosion-resistant, antiultraviolet high light transmission smoke halogen-free flame retardant sheath material, after burning light transmittance up to 90% or more, There is better light transmittance after burning, facilitates evacuating personnel when fire.

Insulating layer 3 and fireprotection layer 5 are porcelain mineral composites, the porcelain mineral composites thermal conductivity coefficient It is low, it prevents outside heat from being passed to conductor wire core when fire occurs, guarantees that the current-carrying capacity of conductor wire core is unlikely to decline to a great extent.Its Working principle is: to when fire occurs, the same fireprotection layer 5 of 5 shape imaging ceramic of flame combustion fireprotection layer has blocked flame and combustion The transmitting of temperature is burnt, fireproofing of cable function is realized, protects cable insulation, to ensure that cable can continue to be powered, pass through Double layer design makes it have excellent fire-proof insulation performance.

The utility model fire protecting performance is excellent, and fire resistance rating has not only passed through 950 DEG C of class of national standard GB/T12666-2008 A 90min is tested, and I A grade, 950 DEG C of -1000 DEG C of tests is provided in Ministry of Public Security GA306-2007, also by Britain BS6387-1994 It provides 650 DEG C of A grade, 750 DEG C of 3h B grade 3h C grade, 950 DEG C of 3h tests, while being also resistant to water spray in burning and being hit with machinery It hits, which can continuously long length production, either its length of single or multicore cable be able to satisfy for electrical length Need, limiting length is unrestricted, the utility model can long length continuous production, up to 7D, (D is cable to bending radius Outer diameter) there is excellent bending property, and special-purpose terminal tieing is not needed, laying is convenient, is not easy the moisture absorption, structure is simple, volume It is small, it is easy to make, it is cheap.

The present embodiment is not shape, structure, the quantity (radical of the conductor 1 in such as embodiment) etc. to the utility model It makes any form of restriction, it is made by the above technical examples according to the technical essence of the present invention any simply to repair Change, equivalent variations, belongs to the protection scope of technical solutions of the utility model.

Claims (6)

1. a kind of intelligent temperature measurement flexible fire-proof cable, including conductor (1), it is characterised in that: wrapped at least two outside the conductor (1) Layer fire-resistant isinglass belt (2), the outer extruded insulation layer (3) of mica tape (2), the wrapped conductor (1) for crossing insulating layer (3) are mutually twisted group stranding Intelligent temperature measurement optical fiber (4) are placed at core, cable core center, are extruded fireprotection layer (5) outside cable core, wrapped glass fibre belt (6) outside fireprotection layer (5), Glass fibre belt (6) is externally provided with stainless steel armor (7), extrudes nonmetallic oversheath (8) outside stainless steel armor (7).

2. a kind of intelligent temperature measurement flexible fire-proof cable according to claim 1, it is characterised in that: the conductor (1) is more Stock copper wire, which presses, to be twisted.

3. a kind of intelligent temperature measurement flexible fire-proof cable according to claim 1, it is characterised in that: the cable core and fireprotection layer (5) high fire-retardance asbestos cord is filled in the gap between.

4. a kind of intelligent temperature measurement flexible fire-proof cable according to claim 1, it is characterised in that: the insulating layer (3) and Fireprotection layer (5) is porcelain mineral composites.

5. a kind of intelligent temperature measurement flexible fire-proof cable according to claim 1, it is characterised in that: the nonmetallic oversheath (8) the low smoke, zero halogen material for being light transmittance up to 90% or more.

6. a kind of intelligent temperature measurement flexible fire-proof cable according to any one of claims 1 to 5, it is characterised in that: the intelligence Energy temperature-measuring optical fiber (4) uses active pay-off device.