CN202258491U - High-flame-retardance and environment-friendly fire-resistant control cable for nuclear power plant - Google Patents
High-flame-retardance and environment-friendly fire-resistant control cable for nuclear power plant Download PDFInfo
- Publication number
- CN202258491U CN202258491U CN2011201936044U CN201120193604U CN202258491U CN 202258491 U CN202258491 U CN 202258491U CN 2011201936044 U CN2011201936044 U CN 2011201936044U CN 201120193604 U CN201120193604 U CN 201120193604U CN 202258491 U CN202258491 U CN 202258491U
- Authority
- CN
- China
- Prior art keywords
- friendly
- environment
- fire
- flame
- nuclear power
- 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 - Fee Related
Links
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a high-flame-retardance and environment-friendly fire-resistant control cable for a nuclear power plant. The high-flame-retardance and environment-friendly fire-resistant control cable comprises a fire-resistant insulating cable core, an alkali-free glass tape layer which is coated on the fire-resistant insulating cable core, an environment-friendly oxygen separation layer which is extruded on the alkali-free glass tape layer, and an outer jacket which is extruded on the environment-friendly oxygen separation layer and made of a low-smoke zero-halogen environment-friendly and radiation-resistant cross-linking polyolefin material, wherein the fire-resistant insulating cable core is formed by twisting a plurality of fire-resistant insulating wire cores and inorganic flame-resistant materials which are filled in the center of the fire-resistant insulating wire cores at certain twisting pitches; and each fire-resistant insulating wire core consists of a multi-core copper conductor, a synthetic mica fire-resistant layer which is wrapped outside the multi-core copper conductor, and an internal cross-linking polyolefin insulating layer and an external cross-linking polyolefin insulating layer which are extruded on the synthetic mica fire-resistant layer. The high-flame-retardance and environment-friendly fire-resistant control cable for the nuclear power plant has the advantages that: the cable can be applied to the occasions of K1 to K3 classes in the nuclear power plant; all materials are environment-friendly materials; and various requirements for severe environments such as high temperature, high humidity, high radiation, fire resistance and flame retardance in the nuclear power plant can be met.
Description
Technical field:
The utility model relates to a kind of cable, particularly a kind of high-flame-resistance environment-friendly refractory control cable for nuclear power station.
Background technology:
The control of the inner various instrument and meters of nuclear power station and signal transmission, very high to the reliability requirement of control cable.Because the particularity of nuclear power station internal environment, need cable can bear high temperature, high damp and hot, radiation hardness dosage and severe rugged environment requirement such as fire-retardant, traditional nuclear power is lower with the control cable flame retardant rating, and does not generally have fire resistance.
The utility model content:
The utility model technical problem to be solved is lower with the control cable flame retardant rating to nuclear power, and does not generally have problem such as fire resistance and a kind of high-flame-resistance environment-friendly refractory control cable for nuclear power station is provided.This high-flame-resistance environment-friendly refractory control cable for nuclear power station also has the high and good advantage of fire resistance of flame retardant rating except that having general nuclear power with the control cable performance.
In order to realize above-mentioned utility model purpose, the technical scheme that the utility model adopted is:
A kind of high-flame-resistance environment-friendly refractory control cable for nuclear power station; It is characterized in that; Comprise fire safe type insulation cable core and be coated on alkali-free glass ribbon layer on the said fire safe type insulation cable core and the environment-friendly type oxygen barrier layer that is extruded in the high flame retardant on the said alkali-free glass ribbon layer, also comprise the oversheath that the low smoke and zero halogen environmental-friendly type irradiated crosslinked polyalkene material by high flame retardant on the environment-friendly type oxygen barrier layer that is extruded in said high flame retardant is processed; Wherein fire safe type insulation cable core is to be restricted by the inorganic anti-flaming material of the some fire safe type insulated wire cores high flame retardant central with being filled in said fire safe type insulated wire cores to form so that certain twisting pitch is stranded; Said each root fire safe type insulated wire cores is made up of multicore copper conductor and wrapped synthetic mica flame retardant coating and the inside and outside two-layer cross-linked polyolefin insulating barrier that is extruded on the said mica flame retardant coating outside said multicore copper conductor; Said internal layer cross-linked polyolefin insulating barrier is high insulation resistivity cross-linked polyolefin material layer, and skin is a flame retardant type radiation hardness cross-linked polyolefin material layer.
Said synthetic mica belt is to be not less than overlapping wrapped 2 layers of 50% Duplication, and the refractory temperature of synthetic mica belt is not less than 850 ℃.
The thickness of said inside and outside two-layer cross-linked polyolefin insulating barrier is 55%～60%.
The insulation specific insulation of said internal layer cross-linked polyolefin insulating barrier is not less than 5 * 10
15Ω .cm.
The insulation specific insulation of said outer cross-linked polyolefin insulating barrier is not less than 1 * 10
14Ω .cm, oxygen index should be not less than 36.
The oxygen index of said inorganic anti-flaming material rope is more than 58.
Said alkali-free glass ribbon layer is to be not less than the overlapping wrapped one deck of 20% Duplication, and its refractory temperature is not less than 400 ℃.
The oxygen index of said environment-friendly type oxygen barrier layer is not less than 58.
The oxygen index of said low smoke and zero halogen environmental-friendly type irradiated crosslinked polyalkene material should be not less than 36.And contain more algeldrate and magnesium hydroxide and adopt ep-type material, not leaded, mercury, cadmium, 6 valency chromium and many bromines class materials such as PBBs and PBDEs, and contain environment protection additives such as gamma-rays and the agent of β radiation absorption.
The utility model has the advantages that this cable can be applied to K1 in the nuclear power station～K3 class occasion, and all material all adopts ep-type material, can satisfy high temperature in the nuclear power station, high damp and hot, high radiation, multiple severe rugged environment requirement such as fire-resistant and fire-retardant.
Description of drawings
Fig. 1 is the utility model high-flame-resistance environment-friendly refractory control cable for nuclear power station radial cross-section;
Embodiment:
Further specify the utility model below in conjunction with accompanying drawing and specific embodiment.
Referring to Fig. 1, each root fire safe type insulated wire cores is made up of multicore copper conductor 1 and wrapped synthetic mica flame retardant coating 2 and the inside and outside two-layer cross-linked polyolefin insulating barrier 3,4 that is extruded on the mica flame retardant coating 2 outside multicore copper conductor 1.
Synthetic mica flame retardant coating 2 adopts synthetic mica tape wrapped, and the refractory temperature of mica tape is not less than 850 ℃.Wrapped mode is that mica tape thickness is 0.14mm to be not less than overlapping wrapped 2 layers of 50% Duplication.
Internal layer cross-linked polyolefin insulating barrier 3 adopts non-flame-retardant crosslinking polyethylene insulated material, and nominal thickness is: 0.5mm, and outer cross-linked polyolefin insulating barrier 4 adopts flame-proof crosslinked polyolefine material, and thickness is 0.3mm.Internal layer cross-linked polyolefin insulating barrier 3 adopts the double-layer coextrusion mode to coat with outer cross-linked polyolefin insulating barrier 4, coats closely to guarantee internal layer cross-linked polyolefin insulating barrier 3 and outer cross-linked polyolefin insulating barrier 4.
Fire safe type insulation cable core is to be formed so that certain twisting pitch is stranded by the inorganic anti-flaming material rope of 16 fire safe type insulated wire cores and 3 high flame retardants that are filled in 16 fire safe type insulated wire cores central authorities 5.Fire safe type insulation conductor assembly outer diameter after stranding is stranded is: 18.0～18.5mm, the ectonexine twisting pitch is respectively: 151mm and 270mm.Every fire safe type insulated wire cores external diameter is 3.6～3.7mm.The differentiation of 16 fire safe type insulated wire cores adopts the black insulating surface to print different white numerals, as: 1,2,3 ... 16.
The diameter of the inorganic anti-flaming material of every high flame retardant rope 5 is 4mm, is base material by alkali-free glass wool or asbestos cord, and dip-coating constitutes with the algeldrate of high flame retardant, hydronium(ion) oxidation magnesium or boths', and the oxygen index of this inorganic anti-flaming material rope 5 is more than 58.
The alkali-free glass ribbon layer 6 that is coated on the fire safe type insulation cable core adopts the unorganic glass silk ribbon wrapped, and the refractory temperature of unorganic glass silk ribbon is not less than 400 ℃.Wrapped mode is that unorganic glass ribbon thickness is 0.17mm to be not less than overlapping wrapped 1 layer of 20% Duplication.
The environment-friendly type oxygen barrier layer 7 that is extruded in the high flame retardant on the alkali-free glass ribbon layer 6 adopts and extrudes the low-smoke bittern-free highly fire-proof polyolefine material, and this layer low-smoke bittern-free highly fire-proof polyolefine material uses polyolefine material to be base-material filling constituting with a large amount of algeldrates, hydronium(ion) oxidation magnesium or both.This low-smoke bittern-free highly fire-proof polyolefine material oxygen index should be not less than 58.Environment-friendly type oxygen barrier layer 7 thickness that are extruded in the high flame retardant on the alkali-free glass ribbon layer 6 are about 2.0mm, and external diameter is: 20.5～21.0mm.
Being extruded in oversheath 8 on the environment-friendly type oxygen barrier layer 7 of high flame retardant adopts and extrudes low smoke and zero halogen environment-friendly high fire-retardant radiation hardness cross-linked polyolefin material.This material oxygen index should be not less than 36.Oversheath 8 thickness are about 1.7mm, and external diameter is: 23.9～24.5mm.The color of oversheath 8 is generally black, can be adjusted into other color according to customer requirement.
The advantage of the utility model high-flame-resistance environment-friendly refractory control cable for nuclear power station is to compare with existing common control cable for nuclear power station; High flame retardant and fire-resistant function have been realized; And have functions such as low smoke and zero halogen, environmental protection, high flame retardant, fire-resistant and radiation hardness, be a kind of very ideal control cable kind that is widely used in nuclear power station K1～K3 class environment.
Claims (8)
1. high-flame-resistance environment-friendly refractory control cable for nuclear power station; It is characterized in that; Comprise fire safe type insulation cable core and be coated on alkali-free glass ribbon layer on the said fire safe type insulation cable core and the environment-friendly type oxygen barrier layer that is extruded in the high flame retardant on the said alkali-free glass ribbon layer, also comprise the oversheath that the low smoke and zero halogen environmental-friendly type irradiated crosslinked polyalkene material by high flame retardant on the environment-friendly type oxygen barrier layer that is extruded in said high flame retardant is processed; Wherein fire safe type insulation cable core is to be restricted by the inorganic anti-flaming material of the some fire safe type insulated wire cores high flame retardant central with being filled in said fire safe type insulated wire cores to form so that certain twisting pitch is stranded; Said each root fire safe type insulated wire cores is made up of multicore copper conductor and wrapped synthetic mica flame retardant coating and the inside and outside two-layer cross-linked polyolefin insulating barrier that is extruded on the said mica flame retardant coating outside said multicore copper conductor; Said internal layer cross-linked polyolefin insulating barrier is high insulation resistivity cross-linked polyolefin material layer, and skin is a flame retardant type radiation hardness cross-linked polyolefin material layer.
2. high-flame-resistance environment-friendly refractory control cable for nuclear power station according to claim 1 is characterized in that, said synthetic mica belt is to be not less than overlapping wrapped 2 layers of 50% Duplication, and the refractory temperature of synthetic mica belt is not less than 850 ℃.
3. high-flame-resistance environment-friendly refractory control cable for nuclear power station according to claim 1 is characterized in that, the insulation specific insulation of said internal layer cross-linked polyolefin insulating barrier is not less than 5 * 10
15Ω .cm.
4. high-flame-resistance environment-friendly refractory control cable for nuclear power station according to claim 1 is characterized in that, the insulation specific insulation of said outer cross-linked polyolefin insulating barrier is not less than 1 * 10
14Ω .cm, oxygen index should be not less than 36.
5. high-flame-resistance environment-friendly refractory control cable for nuclear power station according to claim 1 is characterized in that, the oxygen index of said inorganic anti-flaming material rope is more than 58.
6. high-flame-resistance environment-friendly refractory control cable for nuclear power station according to claim 1 is characterized in that, said alkali-free glass ribbon layer is to be not less than the overlapping wrapped one deck of 20% Duplication, and its refractory temperature is not less than 400 ℃.
7. high-flame-resistance environment-friendly refractory control cable for nuclear power station according to claim 1 is characterized in that the oxygen index of said environment-friendly type oxygen barrier layer is not less than 58.
8. high-flame-resistance environment-friendly refractory control cable for nuclear power station according to claim 1 is characterized in that, the oxygen index of said low smoke and zero halogen environmental-friendly type irradiated crosslinked polyalkene material should be not less than 36.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201936044U CN202258491U (en) | 2011-06-09 | 2011-06-09 | High-flame-retardance and environment-friendly fire-resistant control cable for nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201936044U CN202258491U (en) | 2011-06-09 | 2011-06-09 | High-flame-retardance and environment-friendly fire-resistant control cable for nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258491U true CN202258491U (en) | 2012-05-30 |
Family
ID=46119699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201936044U Expired - Fee Related CN202258491U (en) | 2011-06-09 | 2011-06-09 | High-flame-retardance and environment-friendly fire-resistant control cable for nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258491U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928155A (en) * | 2014-04-26 | 2014-07-16 | 芜湖航天特种电缆厂 | Fire-resistant control cable |
| CN104575781A (en) * | 2013-10-13 | 2015-04-29 | 宁夏海洋线缆有限公司 | Cable |
-
2011
- 2011-06-09 CN CN2011201936044U patent/CN202258491U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575781A (en) * | 2013-10-13 | 2015-04-29 | 宁夏海洋线缆有限公司 | Cable |
| CN103928155A (en) * | 2014-04-26 | 2014-07-16 | 芜湖航天特种电缆厂 | Fire-resistant control cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101853716B (en) | High-flame-resistance environment-friendly refractory control cable for nuclear power station | |
| CN202189578U (en) | Thin wall cable for railroad locomotive | |
| CN203982861U (en) | Low-smoke halogen-free flame retardant double hyer insulation fire-resisting cable for a kind of nucleus power station | |
| CN202887789U (en) | Halogen-free fire-proof mud-proof control cable for offshore platform | |
| CN202258491U (en) | High-flame-retardance and environment-friendly fire-resistant control cable for nuclear power plant | |
| CN205645390U (en) | Third generation is instrument cable for nuclear power station | |
| CN205881497U (en) | High fire -retardant fire resisting cable of environment -friendly | |
| CN209880225U (en) | Self-supporting fire-resistant waterproof computer cable | |
| CN204926838U (en) | Low smoke and zero halogen polyolefin control cable | |
| CN203085201U (en) | An instrument flat cable used in a petroleum platform | |
| CN202736565U (en) | Power cable used for nuclear power station | |
| CN205751673U (en) | A kind of permanent protective property photoelectric compound cable | |
| CN209216604U (en) | A kind of light-duty copper core copper sheath mineral insulated cable | |
| CN205645366U (en) | Third generation is low voltage power cable for nuclear power station | |
| CN209912597U (en) | Ultraviolet irradiation resistant nuclear-grade lighting cable | |
| CN202042226U (en) | Shipboard flame-retardant shielded control cable | |
| CN201758017U (en) | Low-smoke halogen-free environment-friendly flame-retardant intrinsic safety system control cable | |
| CN210296009U (en) | High-flame-retardant mineral substance insulation copper sheath fireproof power cable | |
| CN207800239U (en) | A kind of mining communication flexible cable of high fire-retardance flame-proof moisture resistance type | |
| CN112117043A (en) | Flame-retardant high-temperature-resistant railway signal cable | |
| CN202145393U (en) | Self-supporting overhead fireproof aluminium core composite optical cable | |
| CN108831599A (en) | A kind of rail traffic composite cable | |
| CN205140592U (en) | Nuclear power station is with there not being steamed low cigarette power cable | |
| CN214377771U (en) | 66kV-500kV low-smoke halogen-free B1-grade flame-retardant power cable | |
| CN203673863U (en) | Halogen-free and low-smoke flame retardation electric cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20190609 |