CN205318908U - Urban rail transit is with there not being fire -retardant fire -resistant accuse composite cable that moves of steamed low cigarette - Google Patents

Abstract

The utility model provides an urban rail transit is with there not being fire -retardant fire -resistant accuse composite cable that moves of steamed low cigarette, including DC power cable cable core and two piece at least control core, control core includes that control core conductor, mica tape or control core are insulating, and the control core concentric stranding constitutes the control core layer outside the DC power cable cable core, the DC power cable cable core includes in proper order from inside to outside that the DC power cable of DC power cable conductor, crowded package is insulating, the first fire -resistant inner sheath layer of crowded package, include the oversheath layer around the first fire -retardant area of package, the composite aluminium -plastic tape who wraps, the crowded fire -resistant inner sheath layer of package second, the copper strips armor around wrapping, the fire -retardant area of second of winding the package, crowded package outside the control core layer from inside to outside in proper order from north to south, this kind of flexible cable has higher insulating properties, fire -retardant A level, low smoke and zero halogen, fire -resistant, waterproof, protection against rodents prevents that ant, anti ultraviolet, resistance field disturb, good, the compact structure of bending property, and realizes transmission electric energy and control, signal, protection and measurement function simultaneously.

Description

A kind of fire-resistant moving control composite cable of LSOH anti-flaming for urban track traffic

Technical field

The utility model patent relates to cable technology field, particularly, relates generally to the fire-resistant moving control composite cable of a kind of urban track traffic LSOH anti-flaming.

Background technology

Urban track traffic is the major measure that traffic environment is improved in current international big city, and due to the particularity of track traffic, security, reliability requirement to power system are high. And subway, light rail cable lay circumstance complication, prior art products often can not meet the various harsh requirement of laying simultaneously; Urban light rail subway mostly is densely populated underground by the environment for use of cable, once breaking out of fire, the environment of underground sealed brings very large difficulty to personnel escape and fire-fighting work. Therefore fire resistance is had relatively high expectations, fire resistance will meet the requirement of A level in GB/T18380.3. Meanwhile, when burning, the release of smog and toxic gas can hinder firemanic carrying out, and sour gas all can damage people and equipment, and during therefore to burning, the burst size of smog and toxic gas also has higher requirement; Urban light rail subway is the effect due to environment and meteorologic factor with cable, likely the long period is laid under moist environment cable, hydrone likely immerses cable, invade cable inside, be insulated absorption and absorb, cause the decline of electric property, can cause oxidation, the corrosion of conductor, not only affect the electrical property of cable, and abnormal broken line accident can occur when serious, cable will have water-proof function; Urban light rail subway is laid in underground for a long time with cable, be easily subject to the attack of toy (as muroid, ant class), affects the performance of cable, and cable should have termite-resistant rodent-resistant function; If urban light rail subway is not to use in subway with cable cable, but be laid in elevated railway, so just may stand for a long time the test of solar radiation and various meteorological conditions, the sheath of cable is for a long time by solar radiation, easily there is color fading, the mechanical and physical performance even phenomenon such as cracking that declines, cable should have anti-ultraviolet function; Urban light rail subway cable laying limited space, one side requires direct current cables lightweight, flexible, radius of turn is little. On the other hand, the cable type that lays in roughing-in is many, quantity is many, need the outside diameter of cable little, easily lay; Urban light rail subway is except a large amount of power cable of needs, also need to use a large amount of control, signal, protection and measure cable, prior art is owing to considering the factor of electric interfering field, often power cable and control, signal, protection and measurement cable are processed separately, are laid respectively, this not only brings difficulty to construction, has also increased use and construction cost; And because the wire core diameter of control, signal, protection and measurement cable is less, tensile strength is lower, easily abrades or break in laid processes.

Utility model content

The purpose of this utility model is to provide a kind ofly has higher insulating properties, fire-retardant A level, low smoke and zero halogen, fire-resistant, waterproof, termite-resistant rodent-resistant, antiultraviolet, anti-electric field interference, good bending property, compact conformation, and plays the fire-resistant moving control composite cable of urban track traffic LSOH anti-flaming of electric energy transmitting and control, signal, protection and measurement simultaneously.

The fire-resistant moving control composite cable of LSOH anti-flaming for a kind of urban track traffic described in the utility model, comprises insulation DC electric cable cable core and at least two control cores. Described control core comprises control line core conductor, control line core insulation, controls core concentric stranding and forms control line sandwich layer outward at insulation DC electric cable cable core; The insulation DC electric cable insulation that described insulation DC electric cable cable core comprises insulation DC electric cable conductor from inside to outside successively, extrude, the first fire-resistant inner restrictive coating extruding; Described control line sandwich layer comprises successively from inside to outside the first wrapped inhibiting tape, the vertical aluminium-plastic tape wrapping outward, extrudes the second fire-resistant inner restrictive coating, wrapped copper strips armouring, the second wrapped inhibiting tape, the external sheath layer extruding.

Further improve, between described control core, be filled with flame-retardant gasket for packing.

Further improve, described control line core conductor is surrounded with mica tape outward or control line core insulation is ceramic silicon rubber insulation.

Further improve, described the first inhibiting tape, the second inhibiting tape are alkali-free glass fibre band or ceramic silicone rubber belt, preferential Ceramics SiClx rubber strip.

Further improve, described flame-retardant gasket for packing is alkali-free glass wool rope or ceramic silicon rubber filling bar, preferentially selects alkali-free glass wool rope.

Further improve, the first described fire-resistant inner restrictive coating is ceramic silicon rubber sheath.

Further improve, the second described fire-resistant inner restrictive coating is ceramic silicon rubber sheath.

Further improve, described external sheath layer is low-smoke halogen-free flame-retardant sheath material.

Further improve, described copper strips is that thickness is the brass band of 0.12mm again, and employing Double-layer gap is wrapped or individual layer is overlapping wrapped. Preferentially select individual layer overlapping wrapped, the rate of putting up between copper strips is 15% (nominal value) of copper strips width, and the minimum rate of putting up should be not less than 5%.

The utility model adopts above technical scheme compared with prior art, has following technique effect:

(1) have higher insulating properties, without compared with (low) halogen flame-proof cross-linking polyolefin insulation, the electricity function index such as insulaion resistance constant and specific insulation of cable can not reduce, and has kept higher insulating properties with the low cigarette of available technology adopting.

(2) fire-retardant A level, fire-resistant, the combining structure of multilayer alkali-free glass fibre band or ceramic silicone rubber belt, multi-layer ceramics SiClx rubber sheath, alkali-free glass wool rope or ceramic silicon rubber filling bar, make cable reach the requirement of fire-retardant A level, in category-A combustion test, jacket surface carbonization partial-length can meet national standard requirement. The crust of ceramic silicone rubber belt, ceramic silicon rubber sheath, ceramic silicon rubber filling bar is also fine, after flame combustion, separating out the silica duricrust parcel that water transform Cheng Burong do not fire stops flame to enter in insulation, also completely cut off contacting of insulation and extraneous oxygen, made the intensity of a fire controlled. Alkali-free glass fibre band, alkali-free glass wool rope are by alkali-free glass gauze Shu Hecheng thigh stranded forming again, fire-retardant, fire-resistant, have higher tensile strength simultaneously, higher electrical insulation capability, and chemical stability and heat resistance preferably, and hygroscopicity is little.

(3) first fire-resistant inner restrictive coatings, the second fire-resistant inner restrictive coating, external sheath layer, multi-layer fire-retarded band are all low smoke and zero halogen materials. Light transmittance, halogen acid gas burst size, pH value, electrical conductivity all meet standard-required and have very large surplus, when cable material and cable smoke density test burn, light transmittance is less than 60%, halogen acid gas burst size while taking from the material combustion of cable is less than 5mg/g, the solubility pH value that discharges gas while taking from the material combustion of cable is greater than 4.3, and the electrical conductivity of the aqueous solution is less than 10 μ s/mm.

(4) waterproof, the aluminium-plastic tape of duplex sheath, vertical bag can increase radially water proofing property, and alkali-free glass wool rope hygroscopicity is little, can play longitudinal waterproof action.

(5) termite-resistant rodent-resistant, the relative red copper hardness of brass is larger, has enough hardness to stand the attack of mouse, termite. In sheath material, add capsicim, adopt capsicim as anti-termite agent, can make oral mucosa and the olfactory nerves of muroid animal be subject to intense stimulus and detest and reject to chew and cut, simultaneously can hit and kill termite again, there is difunctional nontoxic, environmental protection, nuisanceless, active constituent content is high, addition is little, the term of validity is long.

(6) antiultraviolet, oversheath adopts the material of ultraviolet resistance or in sheath material, adds the auxiliary agents such as UV resistant absorbent to improve the performance of material, can stand for a long time the test of solar radiation and various meteorological conditions, the sheath of cable is for a long time by solar radiation, there will not be color fading, the mechanical and physical performance phenomenons such as cracking that decline even.

(7) anti-electric field disturbs, and wrapped copper strips, can play shielding action, and independent mutually, can make direct current cables and control cables synchronous working but non-interference electric field.

(8) good bending property, conductor adopts 5 class conductors more more soft than 2 class conductors, and it is more more soft than crosslinked polyetylene insulated that insulation adopts second third to insulate, good bending property, bending radius is very little and tolerate vibrations, can be used in radius of turn and require strict place.

(9) compact conformation, controlling core and power core is concentric structure, external diameter is little.

(10) play electric energy transmitting and control, signal, protection and measurement effect, direct current power cable core transmits and distributes electric energy in power circuit simultaneously. Control cable core transmission of signal or control operation between control centre and system, or for the protection of, measure. Direct current power cable core and control cable core are combined with each other, and have not only saved material, cost of manufacture, and can construct simultaneously, reduce construction times and operating expenses. Also avoided because of cable laying narrow space, when construction, easily damaged the problem of tiny control cables core.

Brief description of the drawings

Below with reference to accompanying drawing, the utility model is described in further detail:

Fig. 1 is structural representation of the present utility model;

Wherein, 1, control line core conductor, 2, control line core insulation, 3, insulation DC electric cable conductor, 4, insulation DC electric cable insulation, 5, the first fire-resistant inner restrictive coating, 6, fire-retardant gasket for packing, 7, the first inhibiting tape, 8, the aluminium-plastic tape of vertical bag, 9, the second fire-resistant inner restrictive coating, 10, copper strips armouring, 11, the second inhibiting tape, 12, external sheath layer.

Detailed description of the invention

The utility model provides a kind of urban track traffic LSOH anti-flaming fire-resistant moving control composite cable, and for making the purpose of this utility model, technical scheme and effect are clearer, clear and definite, and with reference to accompanying drawing examples, the utility model is further described. Should be appreciated that concrete enforcement described herein is only in order to explain the utility model, and be not used in restriction the utility model.

The fire-resistant moving control composite cable of LSOH anti-flaming for urban track traffic provided by the utility model, comprises insulation DC electric cable cable core and at least two control cores. Described control core comprises control line core conductor 1, control line core insulation 2, controls core concentric stranding and forms control line sandwich layer outward at insulation DC electric cable cable core; The insulation DC electric cable insulation 4 that described insulation DC electric cable cable core comprises insulation DC electric cable conductor 3 from inside to outside successively, extrude, the first fire-resistant inner restrictive coating 5 extruding; Described control line sandwich layer comprises successively from inside to outside the first wrapped inhibiting tape 7, the vertical aluminium-plastic tape 8 wrapping outward, extrudes the second fire-resistant inner restrictive coating 9, wrapped copper strips armouring 10, the second wrapped inhibiting tape 11, the external sheath layer 12 extruding.

Wherein, control between core and be filled with flame-retardant gasket for packing 6, outside control line core conductor 1, being surrounded with mica tape or control line core insulation 2 is ceramic silicon rubber insulation; The first inhibiting tape 7, the second inhibiting tape 11 are alkali-free glass fibre band or ceramic silicone rubber belt, preferential Ceramics SiClx rubber strip; Fire-retardant gasket for packing 6 is alkali-free glass wool rope or ceramic silicon rubber filling bar, preferentially selects alkali-free glass wool rope; The first fire-resistant inner restrictive coating 5 is ceramic silicon rubber sheath, the second fire-resistant inner restrictive coating 9 is ceramic silicon rubber sheath, external sheath layer 12 is low-smoke halogen-free flame-retardant sheath material, preferentially select low-smoke halide-free fireproof composite polyolefine material, preferentially select with the material of ultraviolet resistance or in sheath material, add the auxiliary agents such as UV resistant absorbent to improve the performance of material, preferentially selecting and in sheath material, add capsicim as anti-termite agent.

Copper strips 10 is for meeting the brass band of H62 in GB2060 or H65, adopts that Double-layer gap is wrapped or individual layer is overlapping wrapped. Preferentially select individual layer overlapping wrapped, the rate of putting up between copper strips is 15% (nominal value) of copper strips width, and the minimum rate of putting up should be not less than 5%.

The conductor that the utility model composite cable adopts is the naked annealed copper conductor that meets GB/T3956-2008 or the metal cladding annealed copper conductor that cable is conventional, the hard circular copper wire of multiply that comprises compacting pressing forms 5 class conductors of 2 class conductors or the soft circular copper wire composition of non-multiply of pressing etc., preferentially selects wire core diameter to be less than the zinc-plated 5 class conductors of 0.5mm.

Insulation, for crosslinked polyethylene or EP rubbers, is preferentially selected EP rubbers.

The utility model provides a kind of urban track traffic LSOH anti-flaming fire-resistant moving control composite cable; the above is only preferred implementation method of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvement, these improve and also should be considered as protection domain of the present utility model.

Claims (9)

1. the fire-resistant moving control composite cable of LSOH anti-flaming for urban track traffic, comprise insulation DC electric cable cable core and at least two control cores, it is characterized in that, described control core comprises control line core conductor and mica tape or control line core insulation, controls core concentric stranding and forms control line sandwich layer outward at insulation DC electric cable cable core; The insulation DC electric cable insulation that described insulation DC electric cable cable core comprises insulation DC electric cable conductor from inside to outside successively, extrude, the first fire-resistant inner restrictive coating extruding; Described control line sandwich layer comprises successively from inside to outside the first wrapped inhibiting tape, the vertical aluminium-plastic tape wrapping outward, extrudes the second fire-resistant inner restrictive coating, wrapped copper strips armouring, the second wrapped inhibiting tape, the external sheath layer extruding.

2. a kind of urban track traffic fire-resistant moving control composite cable of LSOH anti-flaming according to claim 1, is characterized in that, between described control core, is filled with flame-retardant gasket for packing.

3. a kind of urban track traffic fire-resistant moving control composite cable of LSOH anti-flaming according to claim 1, it is characterized in that, described control line core conductor is surrounded with mica tape or control line core insulation outward, and described control line core insulation is ceramic silicon rubber insulation.

4. a kind of urban track traffic fire-resistant moving control composite cable of LSOH anti-flaming according to claim 1, is characterized in that, described the first inhibiting tape, the second inhibiting tape are alkali-free glass fibre band or ceramic silicone rubber belt.

5. a kind of urban track traffic fire-resistant moving control composite cable of LSOH anti-flaming according to claim 2, is characterized in that, described flame-retardant gasket for packing is alkali-free glass wool rope or ceramic silicon rubber filling bar.

6. a kind of urban track traffic fire-resistant moving control composite cable of LSOH anti-flaming according to claim 1, is characterized in that, the first described fire-resistant inner restrictive coating is ceramic silicon rubber sheath.

7. a kind of urban track traffic fire-resistant moving control composite cable of LSOH anti-flaming according to claim 1, is characterized in that, the second described fire-resistant inner restrictive coating is ceramic silicon rubber sheath.

8. a kind of urban track traffic fire-resistant moving control composite cable of LSOH anti-flaming according to claim 1, is characterized in that, described external sheath layer is low-smoke halogen-free flame-retardant sheath material.

9. a kind of urban track traffic fire-resistant moving control composite cable of LSOH anti-flaming according to claim 1, it is characterized in that, described copper strips armouring is that thickness is the brass band of 0.12mm, employing Double-layer gap is wrapped or individual layer is overlapping wrapped, the rate of putting up between copper strips is not higher than 15% of copper strips width, and the minimum rate of putting up is 5%.