CN104240806A - Halogen-free low-smoke flame retardant instrument cable for nuclear power plant - Google Patents
Halogen-free low-smoke flame retardant instrument cable for nuclear power plant Download PDFInfo
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- CN104240806A CN104240806A CN201310247140.4A CN201310247140A CN104240806A CN 104240806 A CN104240806 A CN 104240806A CN 201310247140 A CN201310247140 A CN 201310247140A CN 104240806 A CN104240806 A CN 104240806A
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Abstract
The invention relates to the technical field of cable manufacturing, in particular to a halogen-free low-smoke flame retardant instrument cable for a nuclear power plant. The cable comprises a cable core, and a cabling wrapping layer, a tinned copper wire braiding main shielding layer, an outer wrapping layer, an inner protection sleeve layer, an armor layer and an outer protection sleeve layer are sequentially arranged on the outer side of the cable core; a filling layer is arranged between the cable core and the cabling wrapping layer; the cable core comprises four strands of twisted cable bodies, each strand of cable body comprises two twisted insulation cable core bodies, and a copper strip wrapping unit shielding layer and a unit wrapping layer are sequentially arranged outside every two twisted insulation cable core bodies; current guiding wires are arranged between the copper strip wrapping unit shielding layers and the insulation cable core bodies; each insulation cable core body comprises a conductor, and an inner insulation layer and an outer insulation layer are sequentially arranged on the outer side of each conductor. The halogen-free low-smoke flame retardant instrument cable is simple in structure and novel in material, and the double-layer insulation structure, the composite shielding structure and the double-layer wrapping structure are adopted, so that the halogen-free low-smoke flame retardant instrument cable has the advantages of being low in smoke, free of halogen, flame retardant, radiation resistant, interference resistant, cracking resistant, long in service life, and the like.
Description
Technical field
The present invention relates to technical field of cable, particularly a kind of used in nuclear power station LSOH anti-flaming instrument cable.
Background technology
AP1000 is international advanced Generation Ⅲ, and have higher fail safe and more excellent economy, designed life is 60 years.According to national nuclear power Long-and Medium-term Development planning: to the year two thousand twenty, Chinese Nuclear Power installed capacity will account for about 7% of total installed capacity of electricity capacity, reaches 7,500 ten thousand kilowatts.Newly-built nuclear power station will adopt AP1000 nuclear power technology comprehensively.Used in nuclear power station LSOH anti-flaming instrument cable is mainly used in the power supply of nuclear power station instrument control device, signal monitoring, interlock system, also can be used for communication system, security monitoring, maintenance system, warning system etc.For AP1000 technology, its supporting instrument cable requires to possess useful life of more than 60 years, and have low smoke and zero halogen, fire-retardant, resistance to long term heat ageing, also to have specifically environment resistant, as radiation hardness, resistance to LOCA.The main deficiency of existing nuclear power station instrument cable is: shielding properties is poor, capability of resistance to radiation is general, does not reach 60 years useful life.
Summary of the invention
The object of the invention is to the deficiency in order to overcome common nuclear cables technology, the harsh environments special for cable for nuclear power station and the requirement of high security, provide a kind of used in nuclear power station LSOH anti-flaming instrument cable meeting AP10000 cables of nuclear power standard-required.
The present invention includes cable core, outside described cable core, set gradually stranding lapping layer, tinned copper wire braided overall-shielding layer, outer lapping layer, inner restrictive coating, armour and external sheath layer; Between described cable core and stranding lapping layer, packed layer is set; Described cable core comprises the cable of twisted quad, and every share of cable comprises two mutual stranded insulated wire cores respectively, sets gradually the wrapped unit screen of copper strips and unit lapping layer outside stranded insulated wire cores; Between the wrapped unit screen of copper strips and insulated wire cores, drainage thread is set; Insulated wire cores described in every root comprises conductor respectively, sets gradually inner insulating layer and external insulation layer outside described conductor.
Conductor of the present invention adopts the stranded bunchy of several tinned copper wire to form, and the sectional area of conductor is 0.75-2.5mm
2; Double insulating layer is respectively inner insulating layer, and material adopts cross-linked polyolefin; External insulation layer, material adopts LSOH anti-flaming cross-linked polyolefin; Jacket material is halogen-free and low-smoke flame-retardant polyolefin sheathed irradiation material; Packing material wraps up netted split fibre by high flame retardant polyolefin and makes.Structure of the present invention is simple, and material is novel, adopts double-layer insulating structure and composite barrier structure and double-deck lapping structure, product is had performances such as excellent low cigarette, Halogen, fire-retardant, radioresistance, anti-interference, cracking resistance, life-span be long.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, the present invention includes cable core, outside cable core, set gradually stranding lapping layer 1, tinned copper wire braided overall-shielding layer 2, outer lapping layer 3, inner restrictive coating 4, armour 5 and external sheath layer 6; Packed layer 7 is set between cable core and stranding lapping layer 1; Cable core comprises the cable 8 of twisted quad, and every share of cable 8 comprises two mutual stranded insulated wire cores 9 respectively, sets gradually the wrapped unit screen 10 of copper strips and unit lapping layer 11 outside stranded insulated wire cores 9; Between the wrapped unit screen 10 of copper strips and insulated wire cores 9, drainage thread 12 is set; Every root insulated wire cores 9 comprises conductor 13 respectively, sets gradually inner insulating layer 14 and external insulation layer 15 outside conductor 13.
Claims (1)
1. used in nuclear power station LSOH anti-flaming instrument cable, is characterized in that: comprise cable core, sets gradually stranding lapping layer, tinned copper wire braided overall-shielding layer, outer lapping layer, inner restrictive coating, armour and external sheath layer outside described cable core; Between described cable core and stranding lapping layer, packed layer is set; Described cable core comprises the cable of twisted quad, and every share of cable comprises two mutual stranded insulated wire cores respectively, sets gradually the wrapped unit screen of copper strips and unit lapping layer outside stranded insulated wire cores; Between the wrapped unit screen of copper strips and insulated wire cores, drainage thread is set; Insulated wire cores described in every root comprises conductor respectively, sets gradually inner insulating layer and external insulation layer outside described conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310247140.4A CN104240806A (en) | 2013-06-21 | 2013-06-21 | Halogen-free low-smoke flame retardant instrument cable for nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310247140.4A CN104240806A (en) | 2013-06-21 | 2013-06-21 | Halogen-free low-smoke flame retardant instrument cable for nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104240806A true CN104240806A (en) | 2014-12-24 |
Family
ID=52228723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310247140.4A Pending CN104240806A (en) | 2013-06-21 | 2013-06-21 | Halogen-free low-smoke flame retardant instrument cable for nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104240806A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170517A (en) * | 2017-06-30 | 2017-09-15 | 重庆渝丰鑫新线缆科技有限公司 | It is a kind of for flat cable of outdoor pre-buried installation and preparation method thereof |
| CN108695019A (en) * | 2018-05-22 | 2018-10-23 | 安徽天康(集团)股份有限公司 | A kind of flame-retardant pull tension long haul communication instrument signal cable |
| CN110265179A (en) * | 2019-05-23 | 2019-09-20 | 远程电缆股份有限公司 | A kind of nuclear energy protection system is with preventing letting out line |
| CN112117030A (en) * | 2020-09-28 | 2020-12-22 | 远东电缆有限公司 | Multi-core cable and production process thereof |
-
2013
- 2013-06-21 CN CN201310247140.4A patent/CN104240806A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170517A (en) * | 2017-06-30 | 2017-09-15 | 重庆渝丰鑫新线缆科技有限公司 | It is a kind of for flat cable of outdoor pre-buried installation and preparation method thereof |
| CN107170517B (en) * | 2017-06-30 | 2023-08-04 | 渝丰科技股份有限公司 | Flat cable for outdoor embedded installation and preparation method thereof |
| CN108695019A (en) * | 2018-05-22 | 2018-10-23 | 安徽天康(集团)股份有限公司 | A kind of flame-retardant pull tension long haul communication instrument signal cable |
| CN110265179A (en) * | 2019-05-23 | 2019-09-20 | 远程电缆股份有限公司 | A kind of nuclear energy protection system is with preventing letting out line |
| CN112117030A (en) * | 2020-09-28 | 2020-12-22 | 远东电缆有限公司 | Multi-core cable and production process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |