CN205016296U - Fire -resistant high temperature resistance medium voltage power cable - Google Patents
Fire -resistant high temperature resistance medium voltage power cable Download PDFInfo
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- CN205016296U CN205016296U CN201520724390.7U CN201520724390U CN205016296U CN 205016296 U CN205016296 U CN 205016296U CN 201520724390 U CN201520724390 U CN 201520724390U CN 205016296 U CN205016296 U CN 205016296U
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Abstract
The utility model discloses a fire -resistant high temperature resistance medium voltage power cable, including a cable core, the cable core comprises many insulation core transposition, insulation core includes the conductor, the conductor outside by interior and outward in proper order the parcel have conductor shield, insulating layer, insulation screen, iron shielded layer and a first flame retardant coating, the clearance of three insulation core transposition structures is provided with the filling layer, cable core and filling layer outside by interior and outward in proper order the parcel have the second flame retardant coating, separate oxygen layer, armor and oversheath. The utility model relates to a have good refractiveness, can ensure the power cable of the transportation of electric power, signal when the conflagration takes place.
Description
Technical field
The utility model relates to cable, is specifically related to a kind of medium-pressure power cable of fireproof high-temperature resistant.
Background technology
Along with China's sustained and rapid development of economy, the important public place decoration such as modern office building, hotel, restaurant, railway station is more and more luxurious, and the combustible of use gets more and more; Country builds subway line in each big and medium-sized cities in succession, just require once under the condition of catching fire as these important public places, the escape that electric wire can normally transmit electric power continuously, carry various control signal and alarm signal to behave, automatic alarm, the use of the startup of fire protection equipment, rescue and emergency set provides the valuable time, and fire-resistant wires be exactly when fire occurs guarantee circuit in certain hour normal power-up, transmit various control signal, alarm signal.The normal power supply of the illumination of passage during to meet event of fire, emergent broadcast, fire protection alarm device, automatic fire-fighting facility and other emergency set, makes personnel evacuate in time, rescue work is normally carried out.Therefore the reliability of fire-resistant wires is most important.
Utility model content
For the deficiencies in the prior art, the utility model discloses a kind of medium-pressure power cable of fireproof high-temperature resistant.
The technical solution of the utility model is as follows:
A medium-pressure power cable for fireproof high-temperature resistant, comprises cable core, and described cable core is formed by many insulated wire cores are stranded; Described insulated wire cores comprises conductor; Described conductor outside is enclosed with conductor shield, insulating barrier, insulation screen, metal screen layer and the first flame retardant coating from inside to outside successively; The gap of many insulated wire cores lay configuration is provided with packed layer; Cable core and packed layer outside are enclosed with the second flame retardant coating, oxygen barrier layer, armour and oversheath from inside to outside successively.
Its further technical scheme is: in described packed layer, be also provided with many metal tubes between insulated wire cores.
Its further technical scheme is: described insulating barrier is that XLPE insulating material is made.
Its further technical scheme is: described flame retardant coating forms by Ceramic silicon rubber band is overlapping wrapped.
Its further technical scheme is: described metal screen layer is made up of annealed copper.
Its further technical scheme is: described packed layer is made up of high flame retardant glass cord.
Its further technical scheme is: described oxygen barrier layer adopts Ceramic silicon rubber material to make.
Its further technical scheme is: the average thickness of described oxygen barrier layer is not less than 2.5mm.
Its further technical scheme is: described armour puts up wrapped forming by clad steel band gap.
Its further technical scheme is: described oversheath is made up of Ceramic silicon rubber material.
Advantageous Effects of the present utility model is:
1, insulating barrier of the present utility model have employed XLPE insulating material, by three-layer co-extruded extrusion modling, has better insulation effect, improves the reliability of cable.
2, the insulated wire cores in the utility model have employed annealed copper band as conductor shield, and it is wrapped that the flame retardant coating adopting Ceramic silicon rubber to make outward at conductor shield carries out overlap, can ensure that cable core can normally run under the condition of catching fire.
3, during On-line Product core stranding of the present utility model, adopt high flame retardant glass cord as packed layer, and add metal tube in packed layer, the heat spreader effect produced when running for cable, can ensure that cable does not assemble heat in running, ensure that the fail safe of cable.
4, the utility model takes clad steel band gap to put up wrapped formation armature of cable layer, prevents external mechanical from damaging, and improves the useful life of cable.
5, the utility model adopts Ceramic silicon rubber material as oversheath, fireproofing of cable performance is improved further, can guarantee that cable can normally run in naked light.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Fig. 1 is structural representation of the present utility model.
As shown in Figure 1, the utility model comprises by the many stranded cable cores formed of insulated wire cores, and in the present embodiment, cable core is formed by three insulated wire cores are stranded, and the cross section of three insulated wire cores is isosceles triangle distribution.Insulated wire cores comprises conductor 1, and conductor 1 outside is enclosed with conductor shield 2, insulating barrier 3, insulation screen 4, metal screen layer 5 and flame retardant coating 6 from inside to outside successively.
In the present embodiment, insulating barrier 3 is made for XLPE insulating material, XLPE insulating material be a kind of containing organic peroxide as the polyethylene of DCP (cumyl peroxide).This peroxide, under HTHP and inert gas environment, with polyethylene generation chemical reaction, makes thermoplastic polyethylene become the polyethylene of thermosetting (elastomer), i.e. XLPE, is commercially available conventional material.Metal screen layer 5 is made up of annealed copper, and annealed copper refers to annealed, meets the copper product of international annealed (soft) copper standard (InternationalAnnealedCopperStandard), is the conventional material of this area.Flame retardant coating 6 forms by Ceramic silicon rubber band is overlapping wrapped.
The gap of three insulated wire cores lay configuration of the present utility model is also provided with packed layer 8.Cable core and packed layer 8 outside are enclosed with flame retardant coating 9, oxygen barrier layer 10, armour 11 and oversheath 12 from inside to outside successively.
The utility model also proposed more excellent technical scheme, namely in packed layer 8, be provided with many metal tubes 7 between insulated wire cores, be provided with the interface also distribution in isosceles triangle of three metal tubes, 7, three metal tubes 7 in the present embodiment, direction is contrary with the cross-sectional distribution of three insulated wire cores.The heat that cable can produce when running, metal tube 7 can play thermolysis, ensures the reliability that cable is in operation and fail safe.
In the present embodiment, packed layer 8 is made up of high flame retardant glass cord.Flame retardant coating 9 forms by Ceramic silicon rubber band is wrapped, and oxygen barrier layer 10 is Ceramic silicon rubber material, and be extruded in outside flame retardant coating 9, average thickness is not less than 2.5mm.Armour 11 forms by clad steel band gap is wrapped, prevents external mechanical from damaging, and improves the useful life of cable.Oversheath 12 is made up of Ceramic silicon rubber material, guarantees that cable can normally run in naked light.Ceramic silicon rubber is commercially available conventional material.
Above-mentionedly to extrude, be wrappedly the technical scheme that cable makes field routine.
Above-described is only preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive or associate under the prerequisite not departing from spirit of the present utility model and design, all should think and be included within protection range of the present utility model.
Claims (10)
1. a medium-pressure power cable for fireproof high-temperature resistant, is characterized in that: comprise cable core, and described cable core is formed by many insulated wire cores are stranded; Described insulated wire cores comprises conductor (1); Described conductor (1) outside is enclosed with conductor shield (2), insulating barrier (3), insulation screen (4), metal screen layer (5) and the first flame retardant coating (6) from inside to outside successively; The gap of many insulated wire cores lay configuration is provided with packed layer (8); Cable core and packed layer (8) outside are enclosed with the second flame retardant coating (9), oxygen barrier layer (10), armour (11) and oversheath (12) from inside to outside successively.
2. the medium-pressure power cable of fireproof high-temperature resistant according to claim 1, is characterized in that: in described packed layer (8), be also provided with many metal tubes (7) between insulated wire cores.
3. the medium-pressure power cable of the fireproof high-temperature resistant according to claims 1 or 2, is characterized in that: described insulating barrier (3) is made for XLPE insulating material.
4. the medium-pressure power cable of the fireproof high-temperature resistant according to claims 1 or 2, is characterized in that: described first flame retardant coating (6) and the second flame retardant coating (9) form by Ceramic silicon rubber band is overlapping wrapped.
5. the medium-pressure power cable of the fireproof high-temperature resistant according to claims 1 or 2, is characterized in that: described metal screen layer (5) is made up of annealed copper.
6. the medium-pressure power cable of the fireproof high-temperature resistant according to claims 1 or 2, is characterized in that: described packed layer (8) is made up of high flame retardant glass cord.
7. the medium-pressure power cable of the fireproof high-temperature resistant according to claims 1 or 2, is characterized in that: described oxygen barrier layer (10) adopts Ceramic silicon rubber material to make.
8. the medium-pressure power cable of the fireproof high-temperature resistant according to claims 1 or 2, is characterized in that: the average thickness of described oxygen barrier layer (10) is not less than 2.5mm.
9. the medium-pressure power cable of the fireproof high-temperature resistant according to claims 1 or 2, is characterized in that: described armour (11) puts up wrapped forming by clad steel band gap.
10. the medium-pressure power cable of the fireproof high-temperature resistant according to claims 1 or 2, is characterized in that: described oversheath (12) is made up of Ceramic silicon rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520724390.7U CN205016296U (en) | 2015-09-17 | 2015-09-17 | Fire -resistant high temperature resistance medium voltage power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520724390.7U CN205016296U (en) | 2015-09-17 | 2015-09-17 | Fire -resistant high temperature resistance medium voltage power cable |
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| Publication Number | Publication Date |
|---|---|
| CN205016296U true CN205016296U (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520724390.7U Active CN205016296U (en) | 2015-09-17 | 2015-09-17 | Fire -resistant high temperature resistance medium voltage power cable |
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| CN (1) | CN205016296U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107545953A (en) * | 2016-06-23 | 2018-01-05 | 上海市高桥电缆厂有限公司 | CA cable assembly |
| CN110364902A (en) * | 2019-08-12 | 2019-10-22 | 江苏亨通电力电缆有限公司 | Middle pressure fireproof cable connection method and middle pressure fireproof cable |
-
2015
- 2015-09-17 CN CN201520724390.7U patent/CN205016296U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107545953A (en) * | 2016-06-23 | 2018-01-05 | 上海市高桥电缆厂有限公司 | CA cable assembly |
| CN110364902A (en) * | 2019-08-12 | 2019-10-22 | 江苏亨通电力电缆有限公司 | Middle pressure fireproof cable connection method and middle pressure fireproof cable |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |