CN103871583A - Low-smoke halogen-free K3-grade computer cable for 1E type nuclear power station - Google Patents
Low-smoke halogen-free K3-grade computer cable for 1E type nuclear power station Download PDFInfo
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- CN103871583A CN103871583A CN201410062684.8A CN201410062684A CN103871583A CN 103871583 A CN103871583 A CN 103871583A CN 201410062684 A CN201410062684 A CN 201410062684A CN 103871583 A CN103871583 A CN 103871583A
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Abstract
The invention discloses a low-smoke halogen-free K3-grade computer cable for a 1E type nuclear power station. The low-smoke halogen-free K3-grade computer cable comprises multiple core wires, wherein each core wire is formed by two stranded conductors, two filling cores added into the two stranded conductors, and a double-sided copper and plastic composite tape wrapped outside all the conductors and the filling cores, each conductor comprises a wire positioned in the center, and a polyester film layer and an insulating layer which are wrapped outside the wire, each insulating layer is made of radiation-resistant low-smoke halogen-free silicone rubber for nuclear power, the multiple core wires form a cable wire, a wrapping layer is wrapped outside the cable wire, a silver plating copper wire braiding layer is wrapped outside the wrapping layer, a sheathing layer wraps the silver plating copper wire braiding layer, and the sheathing layer is made of radiation-resistant low-smoke halogen-free silicone rubber for nuclear power. The low-smoke halogen-free K3-grade computer cable for the 1E type nuclear power station provided by the invention is good in radiation resistance and shielding performance and good in stretching resistance and flexibility, and can be safely used under the nuclear power station environment in a long time.
Description
Technical field
The present invention relates to cable technology field, relate in particular to a kind of low smoke and zero halogen 1E type used in nuclear power station K3 level computer cable.
Background technology
Along with industrial automation level improves constantly, the development of instrument and meter, to the temp measuring system of instrument and meter have higher requirement, temperature measuring device instrument environment of living in is comparatively severe, these performance index to compensating cable propose requirements at the higher level.
Generation Ⅲ nuclear power technology is that single heap is arranged two loop units, and 60 years designed lives, main safety system adopts non-active design, is arranged in containment, and containment is double-decker, and skin is prestressed concrete, and internal layer is steel plate structure.At present, nuclear power station cable used mostly is single-layer shield single-layer sheath in cost consideration, this just cause the anti-interference of cable and resistance to wear not high, especially nuclear power station computer cable, it requires high to shield effectiveness, and existing single-layer shield single-layer sheath structure cannot meet the demands.In addition,, due to the particular surroundings of nuclear power station, the fail safe to cable and anti-radiation performance are also wanted high requirement.How to ensure that cable uses safely in nuclear power station particular surroundings, stop potential safety hazard, and ensure the shield effectiveness of cable, be the problem that industry is explored always.
Summary of the invention
In order to solve the technical problem existing in background technology, the present invention proposes a kind of low smoke and zero halogen 1E type used in nuclear power station K3 level computer cable, its anti-irradiation, advantages of good shielding performance, stretch-resistance and pliability are good, can under nuclear power plant environment, use safely for a long time.
A kind of low smoke and zero halogen 1E type used in nuclear power station K3 level computer cable that the present invention proposes, comprises multiple heart yearns; Each heart yearn comprises two filled cores increasing through two conductors of pair twist, in described two conductor pair twists and at all conductors and the outside coated plastic-aluminum combined layer of one side of filled core, each conductor comprises the wire that is positioned at middle part and laminated polyester film and the insulating barrier that is coated on wire outside, and insulating barrier adopts nuclear power to make with anti-irradiation low smoke and zero halogen silicon rubber; Multiple heart yearns form cable core, and at the outside coated lapping layer of described cable core, at the outside coated silver-gilt copper wire braid of lapping layer, at the outside coated restrictive coating of silver-gilt copper wire braid, described restrictive coating adopts nuclear power to make with anti-irradiation low smoke and zero halogen silicon rubber.
Preferably, described filled core adopts polytetrafluoroethylene to make.
Preferably, the pair twist pitch ratio of described two conductors is 11 times～14 times.
Preferably, described silver-gilt copper wire braid count is greater than 80%.
Preferably, the thickness of described laminated polyester film is 0.1-0.25mm.
Preferably, described wire adopts the many stranded formation of zinc-plated copper free wire.
Preferably, the plastic layer of the plastic-aluminum combined layer of described one side is towards interior and metal covering is outside, and the direction of wrapped described wire is consistent with the direction of lay of described two conductors.
In the present invention, between the wire of conductor and insulating barrier, adopt laminated polyester film as separator, play the effect of main insulation protection, its performance stable for extended periods of time, delays insulating barrier aging simultaneously under the prerequisite that does not affect the total external diameter of cable; Two conductors increase filled core in pair twist, in wide temperature range, when ensureing cable machinery performance, have ensured pliability; The every pair of conductor outside is all coated with the plastic-aluminum combined layer of one side, and its plastic cover is inside and metal covering is outside, and it together time, plays the effect of separated-shielding by wrapped two conductors, and it plays with together with total screen of cable the effect that strengthens shield effectiveness; Silver-coated copper wire braid, as total screen, increases the electromagnetic scope of shielding, and simultaneously quality is light and have a pliability; Insulating barrier and restrictive coating all adopt the anti-irradiation low smoke and zero halogen silicon rubber of nuclear power to make, there is the characteristics such as temperature range is wide, soft, wear-resisting, anti-irradiation, simultaneously environment friendly and pollution-free, make cable electric property under nuclear power plant environment stable, ageing resistace is good, long service life.
In preferred version of the present invention, the pair twist pitch ratio of two conductors is 11 times-14 times, in strengthening cable pull resistance and structural stability, ensures the requirement of cable flexibility; The count of silver-gilt copper wire braid is greater than 80% and has improved the ability of the interference of anti-outer signals; The direction of the wrapped described wire of the plastic-aluminum combined layer of one side is consistent with the direction of lay of described two conductors, further stablizes the lay configuration of two conductors.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of low smoke and zero halogen 1E type used in nuclear power station K3 level computer cable of proposing of the present invention.
Embodiment
As shown in Figure 1, Fig. 1 is the structural representation of a kind of low smoke and zero halogen 1E type used in nuclear power station K3 level computer cable of proposing of the present invention.
With reference to Fig. 1, a kind of low smoke and zero halogen 1E type used in nuclear power station K3 level computer cable that the present invention proposes, comprises seven heart yearns.
Each heart yearn inside comprises two conductors 1, two filled cores 2 and at all two conductors 1 and two plastic-aluminum combined layers 3 of one side that filled core 2 is outside coated.Each conductor 1 inside comprises the wire 11 of the stranded formation of many zinc-plated copper free wires, the outside coated polyester film 12 of wire 11, the outside coated insulation layer 13 of polyester film 12.Polyester film 12 thickness are 0.2mm, as the separator between wire 11 and insulating barrier 13, have the effect of main insulation protection.Insulating barrier 13 adopts the anti-irradiation low smoke and zero halogen silicon rubber of nuclear power to make.
By two conductor 1 pair twists, and in pair twist, increase by two polytetrafluoroethylene filled cores 2, pair twist pitch ratio is 14 times.At all two conductors 1 and the plastic-aluminum combined layer 3 of the outside coated one side of filled core 2, form heart yearn.The plastic layer of the plastic-aluminum combined layer 3 of one side, towards the interior and outside wrapped conductor 1 of metal level, is protected the insulating barrier 13 of conductor 1.And the lapping direction of the plastic-aluminum combined layer 3 of this one side is consistent with the pair twist direction of two conductors 1.Meanwhile, the thin aluminium lamination of the plastic-aluminum combined layer of one side 3 plays the effect of shielding external electromagnetic waves, and plastic layer can be moistureproof and prevents the corrosion of outside chemical product.
Seven heart yearns are twisted into cable core, at the outside coated lapping layer 4 of cable core, the outside coated silver-gilt copper wire braid 5 of lapping layer 4.The outside coated restrictive coating 6 of silver-gilt copper wire braid 5, restrictive coating 6 adopts the anti-irradiation low smoke and zero halogen silicon rubber of nuclear power to make.
In two conductor 1 pair twists in each heart yearn, increase polytetrafluoroethylene filled core, in strengthening cable pull resistance and structural stability, ensure the requirement of cable flexibility.Meanwhile, the pair twist pitch ratio of two conductors 1 is 14 times, in wide temperature range, when both having strengthened cable machinery performance, has ensured again pliability.Meanwhile, the lapping direction of the plastic-aluminum combined layer 3 of one side is consistent with the pair twist direction of two conductors 1, together with from outside, two conductors 1 of pair twist being strapped in tightly with two filled cores 2, cable core internal structure has been carried out to stable processing.
In order to ensure the long-term use of cable; between the wire 11 of conductor 1 and insulating barrier 13, adopt laminated polyester film 12 as separator; play the effect of main insulation protection, its performance stable for extended periods of time, delays insulating barrier aging simultaneously under the prerequisite that does not affect the total external diameter of cable.Adopt nuclear power to there is the characteristics such as high temperature resistant, cold-resistant, soft, wear-resisting, anticorrosion with insulating barrier 13 and restrictive coating 6 that anti-irradiation low smoke and zero halogen silicon rubber is made, therefore ensure that cable electric property under wide temperature range environment is stable, ageing resistace is good, long service life, has met tension, the particular/special requirement such as heat-resisting, anticorrosion.
When cable is worked under nuclear power plant environment, the count of silver-gilt copper wire braid 5 is 90%, and reasonably count has reduced phase mutual interference and the external disturbance between loop, improves antijamming capability.And the silver coating in this silver-gilt copper wire braid 5 has little, the corrosion resistance of decay, has ensured the communication quality in adverse circumstances.Meanwhile, the plastic-aluminum combined layer 3 of one side is realized the double layer screen of cable together with silver-gilt copper wire braid 5, and thin aluminium lamination is different with the metal material that silver-coated copper wire braid 5 contains, and also plays the effect of shielding electromagnetic wave complementation.
Preferably, the nuclear power that this insulating barrier 13 and restrictive coating 6 adopt comprises following component with anti-irradiation low smoke and zero halogen silicon rubber by mass fraction: 55-58 part raw-silastic continuously, 28-33 part precipitated silica, 8-12 part carbon fiber, 25-35 part rare earth oxide, 48-52 part aluminium oxide, 1.8 parts of hydroxy silicon oils, 0.6 part of containing hydrogen silicone oil, 0.5 part of silane coupler, 0.3 part of zinc stearate; Particularly, 55 parts of raw-silastic continuouslies, 30 parts of precipitated silicas, 10 parts of carbon fibers, 25 parts of rare earth oxides, 50 parts of aluminium oxide, 1.8 parts of hydroxy silicon oils, 0.6 part of containing hydrogen silicone oil, 0.5 part of silane coupler, 0.3 part of zinc stearate.Carbon fiber add the stretch-resistance and the heat-resistant fireproof that have strengthened material, and form heat conduction network together with aluminium oxide, make material good heat conduction effect, wire rapid heat dissipation; Add rare earth oxide to play the effect of anti-irradiation.This silicon rubber has the characteristics such as high temperature resistant, cold-resistant, soft, wear-resisting, anticorrosion, and therefore under this cable wide temperature range environment, electric property is stable, and ageing resistace is good, and long service life has met tension, the particular/special requirement such as heat-resisting, anticorrosion.And, this restrictive coating good flame resistance, low smoke and zero halogen when burning, environmental sound.
According to the low smoke and zero halogen 1E type used in nuclear power station K3 level computer cable of the present embodiment, after testing, electric pressure is 0.3/0.5kV; The result that withstand voltage test obtains is 2.0/5kV/min; Electric pressure is 0.6/1kV; The result that withstand voltage test obtains is 3.5/5kV/min; It is 90 DEG C that conductor allows maximum operating temperature for a long time; Insulation resistance >=500M Ω .km; Useful life >=60 year; Smoke density >=80%; PH value >=7.3; Conductivity≤10 μ S/mm; Sample of cable is after the thermal ageing test of 150 ± 2 DEG C, 52 days, then the irradiation test that is 25 × 104GY through accumulated dose, and the sample after test does not ftracture after 20D bend test.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (7)
1. a low smoke and zero halogen 1E type used in nuclear power station K3 level computer cable, is characterized in that, comprises multiple heart yearns; Each heart yearn comprises two filled cores (2) of increasing through two conductors (1) of pair twist, in described two conductors (1) pair twist and at all conductors (1) and the outside coated plastic-aluminum combined layer of one side (3) of filled core (2), each conductor (1) comprises the laminated polyester film (12) and the insulating barrier (13) that are positioned at the wire (11) at middle part and are coated on wire (11) outside, and insulating barrier (13) adopts nuclear power to make with anti-irradiation low smoke and zero halogen silicon rubber; Multiple heart yearns form cable core, at the outside coated lapping layer (4) of described cable core, at the outside coated silver-gilt copper wire braid (5) of lapping layer (4), at the outside coated restrictive coating (6) of silver-gilt copper wire braid (5), described restrictive coating (6) adopts nuclear power to make with anti-irradiation low smoke and zero halogen silicon rubber.
2. low smoke and zero halogen 1E type used in nuclear power station K3 level computer cable according to claim 1, is characterized in that, described filled core (2) adopts polytetrafluoroethylene to make.
3. low smoke and zero halogen 1E type used in nuclear power station K3 level computer cable according to claim 1, is characterized in that, the pair twist pitch ratio of described two conductors (1) is 11 times～14 times.
4. low smoke and zero halogen 1E type used in nuclear power station K3 level computer cable according to claim 1, is characterized in that, described silver-gilt copper wire braid (5) count is greater than 80%.
5. low smoke and zero halogen 1E type used in nuclear power station K3 level computer cable according to claim 1, is characterized in that, described wire (11) adopts the many stranded formation of zinc-plated copper free wire.
6. low smoke and zero halogen 1E type used in nuclear power station K3 level computer cable according to claim 1, is characterized in that, the thickness of described laminated polyester film (12) is 0.1-0.25mm.
7. low smoke and zero halogen 1E type used in nuclear power station K3 level computer cable according to claim 1, it is characterized in that, the plastic layer of the plastic-aluminum combined layer of described one side (3) is towards interior and metal covering is outside, and the direction of wrapped described conductor (1) is consistent with the direction of lay of described two conductors (1).
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| CN201410062684.8A CN103871583B (en) | 2014-02-24 | 2014-02-24 | A kind of low smoke and zero halogen 1E types used in nuclear power station K3 level computer cables |
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| CN201410062684.8A CN103871583B (en) | 2014-02-24 | 2014-02-24 | A kind of low smoke and zero halogen 1E types used in nuclear power station K3 level computer cables |
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| CN103871583B CN103871583B (en) | 2017-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035420A (en) * | 2021-03-24 | 2021-06-25 | 山东华凌电缆有限公司 | Rated voltage 300/500V computer cable for passive nuclear power station and production method |
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| CN201004350Y (en) * | 2006-11-20 | 2008-01-09 | 丁忠海 | A high-temperature resisting twisted shielding computer cable |
| CN201142250Y (en) * | 2008-01-07 | 2008-10-29 | 江苏长峰电缆有限公司 | Composite conductor environment friendly flame-proof type signal cable |
| CN201655414U (en) * | 2010-05-10 | 2010-11-24 | 天津亿鑫通科技股份有限公司 | Multicore 3G communication cable |
| CN201667256U (en) * | 2009-12-30 | 2010-12-08 | 天津塑力线缆集团有限公司 | Novel low-smoke halogen-free fire resistant railway traffic digital signal cable |
| US20120234596A1 (en) * | 2011-03-14 | 2012-09-20 | Sjur Kristian Lund | Elastic high voltage electric phases for hyper depth power umbilical's |
| CN202601310U (en) * | 2012-04-21 | 2012-12-12 | 安徽五洲特种电缆集团有限公司 | High-frequency communication cable |
| CN203826061U (en) * | 2014-02-24 | 2014-09-10 | 安徽华海特种电缆集团有限公司 | Low-smoke halogen-free 1E-type nuclear-power-station-used K3-grade computer cable |
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2014
- 2014-02-24 CN CN201410062684.8A patent/CN103871583B/en active Active
Patent Citations (7)
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| CN201004350Y (en) * | 2006-11-20 | 2008-01-09 | 丁忠海 | A high-temperature resisting twisted shielding computer cable |
| CN201142250Y (en) * | 2008-01-07 | 2008-10-29 | 江苏长峰电缆有限公司 | Composite conductor environment friendly flame-proof type signal cable |
| CN201667256U (en) * | 2009-12-30 | 2010-12-08 | 天津塑力线缆集团有限公司 | Novel low-smoke halogen-free fire resistant railway traffic digital signal cable |
| CN201655414U (en) * | 2010-05-10 | 2010-11-24 | 天津亿鑫通科技股份有限公司 | Multicore 3G communication cable |
| US20120234596A1 (en) * | 2011-03-14 | 2012-09-20 | Sjur Kristian Lund | Elastic high voltage electric phases for hyper depth power umbilical's |
| CN202601310U (en) * | 2012-04-21 | 2012-12-12 | 安徽五洲特种电缆集团有限公司 | High-frequency communication cable |
| CN203826061U (en) * | 2014-02-24 | 2014-09-10 | 安徽华海特种电缆集团有限公司 | Low-smoke halogen-free 1E-type nuclear-power-station-used K3-grade computer cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113035420A (en) * | 2021-03-24 | 2021-06-25 | 山东华凌电缆有限公司 | Rated voltage 300/500V computer cable for passive nuclear power station and production method |
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| CN103871583B (en) | 2017-04-05 |
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