CN202258494U - Refractory medium-voltage and high- voltage cable - Google Patents
Refractory medium-voltage and high- voltage cable Download PDFInfo
- Publication number
- CN202258494U CN202258494U CN2011203464175U CN201120346417U CN202258494U CN 202258494 U CN202258494 U CN 202258494U CN 2011203464175 U CN2011203464175 U CN 2011203464175U CN 201120346417 U CN201120346417 U CN 201120346417U CN 202258494 U CN202258494 U CN 202258494U
- Authority
- CN
- China
- Prior art keywords
- fire
- layer
- insulating
- heat
- resistant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 12
- 239000004020 conductor Substances 0.000 claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims abstract description 10
- 239000003063 flame retardant Substances 0.000 claims abstract description 4
- 230000004888 barrier function Effects 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims abstract 15
- 239000011241 protective layer Substances 0.000 claims abstract 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract 3
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 5
- 229920001187 thermosetting polymer Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 14
- 238000000465 moulding Methods 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical group [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
本实用新型公开了一种耐火型中高压电缆，包括数根绝缘导体，数根绝缘导体绞合构成缆芯，缆芯外侧包裹有耐火隔热组合保护层，耐火隔热组合防火层由三层构成，内层为挤包成型的绝缘保护套，次外层为绕包构成的绝热挡火层，外层为挤包成型的阻燃保护层，耐火隔热组合防火层挤塑成型有护套层。本实用新型采用由绝缘保护套、绝热挡火层、阻燃保护层三层组合构成的耐火隔热组合保护层，耐火性能得到较大的提升，适用于可广泛用于如酒店，医院，大型超市、商务住宅等高层建筑群以及车站、机场、地铁、隧道等公共交通设施的重要场合，能有效延缓火焰或高温对电缆造成的破坏，最大限度赢得宝贵的救援时间，减少人员的伤亡和各种资源的损失。
The utility model discloses a fire-resistant medium and high-voltage cable, which comprises several insulated conductors, and the several insulated conductors are stranded to form a cable core. Composition, the inner layer is an extruded insulating protective sheath, the second outer layer is a heat insulating fire barrier layer formed by wrapping, the outer layer is an extruded flame retardant protective layer, and the fire-resistant and heat-insulating combined fireproof layer is extruded with a sheath layer. The utility model adopts a fire-resistant and heat-insulating combined protective layer composed of three layers of an insulating protective cover, a heat-insulating fire-blocking layer and a flame-retardant protective layer. The fire-resistant performance is greatly improved, and it is suitable for hotels, hospitals, large-scale In important places such as supermarkets, commercial residences and other high-rise buildings, as well as public transportation facilities such as stations, airports, subways, and tunnels, it can effectively delay the damage to cables caused by flames or high temperatures, maximize precious rescue time, and reduce casualties and various accidents. loss of resources.
Description
Technical field:
The utility model relates to field of cables, relates in particular to a kind of fire safe type medium and high voltage cable.
Technical background:
Get into 21 reality, the infrastructure of China has got into the gold period of building, and in today of population and the rapid expansion of urbanization, in order to economize on resources, urban construction is had to clustered, scale and high stratification development.Such as the country of emphasis such as station, airport, subway, nuclear power station, commercial hotel, hospital, shopping plaza, residential building and people's livelihood engineering except needs are considered its indispensable function and environmental amenity property; Fail safe is more and more brought into schedule, and Shanghai " 11.15 " wildfire accident has brought people very deep caution.Fire-resisting cable is as special cable, is applied to occasion that coefficient of safety is had relatively high expectations, received the well recognized of client with society.
Along with continuous high stratification of building and clustered; The electric power transfer capacity is also increasing; Need transformation system be arranged on the building; Thereby shorten the transmission range of main loop cabling, reduce the voltage drop of main loop cabling and the electric energy loss in the electric power transfer process, require the path of laying of a part of medium-pressure or high pressure cable is extended to the transformation system on the building.Therefore, one section medium-pressure or high pressure cable on the building that is laid in requires to have certain fire resistance, can delay greatly because burst accidents such as fire to the destruction of electric power system.
Traditional fire-resisting cable is main with low-voltage cable mainly, and basic structure is wrapped inorganic mica tape on conductor, prevents that within a certain period of time cable from opening circuit under thermal-flame.Yet this structure is not suitable for the middle and high voltage cable of fire-resistant requirement, because it can not solve the balance between middle and high voltage cable electrical property and the fire resistance.
The utility model content:
The purpose of the utility model provides a kind of fire safe type medium and high voltage cable, has taken into full account the electrical property of middle and high voltage cable and the relation between the fire resistance, has solved balance point between the two, has improved the fire resistance of cable.
The technical scheme of the utility model is following:
The fire safe type medium and high voltage cable comprises several insulated electric conductors, the stranded formation cable core of several insulated electric conductors; It is characterized in that: the cable core outside is enclosed with refractory heat-insulating combined protection layer; Refractory heat-insulating combination fireprotection layer constitutes by three layers, and internal layer is the insulation protective jacket that extrudes moulding, and inferior skin is the thermal insulation retaining fire bed of wrapped formation; Outer for extruding the fire-resisting protection layer of moulding, described refractory heat-insulating combination fireprotection layer extrusion moulding has restrictive coating.
Described fire safe type medium and high voltage cable is characterized in that: described insulation protective jacket adopts silica-based thermosetting elastomer material to extrude moulding.
Described fire safe type medium and high voltage cable is characterized in that: described adiabatic retaining fire bed adopts the seamless wrapped formation of ceramic fibre strip.
The utility model has the advantages that:
The utlity model has the fire-resistant medium and high voltage cable of the refractory heat-insulating combined protection layer structure of forming by fire-resisting protection layer, adiabatic retaining fire bed and insulation protective jacket; Effectively delayed the electric insulation structural damage of thermal-flame to cable; Possessed certain fire resistance; And can adopt conventional cable technology to produce, therefore have significant application prospect.
Description of drawings:
Fig. 1 is the utility model structural representation.
Embodiment:
The fire safe type medium and high voltage cable; Comprise conductor 1, conductor 1 is made up of the filament tow strand, the conductor 1 outer insulation system structure of being made up of conductor shield 2-1, insulating barrier 2-2, insulation screen 2-3 and metal screen layer 2-4 2 of wrapping up respectively; The insulated wire cores of being made up of conductor 1 and insulation system structure 2 is twisted into cable core; Cable core outer (if single-core cable, then should metal screen layer outside) is enclosed with refractory heat-insulating combined protection layer 3, and refractory heat-insulating makes up fireprotection layer 3 and constitutes by three layers; Internal layer is the insulation protective jacket 3-1 that extrudes moulding; Inferior skin is the thermal insulation retaining fire bed 3-2 of wrapped formation, and is outer for extruding the fire-resisting protection layer 3-3 of moulding, the refractory heat-insulating combination fireprotection layer 3 outer restrictive coatings 4 that extrusion moulding is arranged; Insulation protective jacket 3-1 adopts silica-based thermosetting elastomer material to extrude moulding, and adiabatic retaining fire bed 3-2 adopts the seamless wrapped formation of ceramic fibre strip.
Specifically:
Fire-resisting protection layer 3-3 adopts inorganic anti-flaming material to extrude moulding, and its oxygen index is high, and the cable axial direction spreads in the thermal-flame lower edge can effectively to stop cable, and at high temperature can decomposite hydrone, further reaches the effect of fire-retardant cooling.
Adiabatic retaining fire bed 3-2 adopts the wrapped moulding of ceramic fibre strip.The ceramic fibre strip main component is aluminium oxide, chromium oxide; Lasting heatproof can reach more than 1200 ℃, and thermal conductivity is low, has good pliability and tear resistance; Compressive resistance is high, is widely used in the industrial refractory material of instrument and equipment, electrothermal part, fire prevention water pipe and tracheae etc.The ceramic fibre tape thickness is thick than mica, adopts common to put up wrapped or gap when wrapped, the space can occur, and out-of-flatness.Wrapped mode adopts seamless wrapped (clearance rate ≈ 0%); Outer field centre is just in time roughly above the internal layer seam; Band thickness and lapping layer are several to be selected according to the cross-section of cable and external diameter size, has guaranteed that adiabatic retaining fire bed is more closely knit, smooth, has realized that its excellent thermal insulation keeps off fiery function.
Insulation protective jacket 3-1 adopts silica-based thermosetting elastomer to extrude moulding, and cable core is extruded closely knit rounding.Silica-based thermosetting elastomer conductive coefficient is little, and mechanical performance does not change basically in the time of 250 ℃, fusion can not occur under the higher temperature yet.Guaranteed that within a certain period of time cable insulation structure keeps Stability Analysis of Structures under flame and hot environment, keep certain electrical insulation properties.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203464175U CN202258494U (en) | 2011-09-16 | 2011-09-16 | Refractory medium-voltage and high- voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203464175U CN202258494U (en) | 2011-09-16 | 2011-09-16 | Refractory medium-voltage and high- voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258494U true CN202258494U (en) | 2012-05-30 |
Family
ID=46119702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203464175U Expired - Lifetime CN202258494U (en) | 2011-09-16 | 2011-09-16 | Refractory medium-voltage and high- voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258494U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104199156A (en) * | 2014-06-24 | 2014-12-10 | 江苏亨通光电股份有限公司 | Flame-retardant and fire-retardant cable with high performance |
| CN105976925A (en) * | 2016-06-30 | 2016-09-28 | 江苏红峰电缆集团有限公司 | Enhanced-type fireproof high-voltage cable |
-
2011
- 2011-09-16 CN CN2011203464175U patent/CN202258494U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104199156A (en) * | 2014-06-24 | 2014-12-10 | 江苏亨通光电股份有限公司 | Flame-retardant and fire-retardant cable with high performance |
| CN105976925A (en) * | 2016-06-30 | 2016-09-28 | 江苏红峰电缆集团有限公司 | Enhanced-type fireproof high-voltage cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 238339 Anhui city of Wuhu province Wuwei County high tech Industrial Park High Road No. 18 Patentee after: Anhui Shangwei Cable Co., Ltd. Address before: 238339 Anhui city of Wuhu province Wuwei County high tech Industrial Park High Road No. 18 Patentee before: Anhui Star Cable Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |