CN109712751A - Marine small-sized used by nuclear reactor lv power cable and its manufacturing method - Google Patents
Marine small-sized used by nuclear reactor lv power cable and its manufacturing method Download PDFInfo
- Publication number
- CN109712751A CN109712751A CN201811614038.2A CN201811614038A CN109712751A CN 109712751 A CN109712751 A CN 109712751A CN 201811614038 A CN201811614038 A CN 201811614038A CN 109712751 A CN109712751 A CN 109712751A
- Authority
- CN
- China
- Prior art keywords
- low
- power cable
- cable
- oversheath
- retardant
- 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.)
- Pending
Links
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)
- Organic Insulating Materials (AREA)
Abstract
It include: A, sorting the invention discloses marine small-sized used by nuclear reactor lv power cable and its manufacturing method, the manufacturing step of the lv power cable；B, wire drawing；C, it anneals tin plating；D, conductor strand；E, extruded insulation layer；F, filler extrudes；G, stranding；H, oversheath is extruded；J, product inspection is packed and stored, the cable can at sea be run 60 years or more on the nominal situation of small-sized nuclear reactor, the cable has small, light-weight, the good high and low temperature resistance of bending radius, enough radiation resistances, preferable waterproof performance and good fire retardant insulating performance, can guarantee that the cable is worked normally in nominal situation or accident.
Description
Technical field
The invention belongs to technical field of electric wires and cables, in particular to a kind of small-sized used by nuclear reactor lv power cable in sea
And its manufacturing method.
Background technique
There are a large amount of offshore drilling platforms in the world at present, but these platforms cannot use the petroleum direct generation of electricity, so
It also needs to transport diesel oil for generating electricity to them with ship, diesel generation seriously pollutes environment, does not meet environmental requirement.One operation area
Multiple oil platforms between at a distance of generally being arrived between several kms in several hundred rice, can be to entire work with marine small-sized nuclear reactor
The power supply of industry area, both meets environmental requirement, economic benefit can also guarantee completely.
Equally, all kinds of military-civil cruisers, destroyer, submarine, ice breaker and ocean-going ship, can be used marine small cores
The problems such as reactor solves power supply and power supply environmental protection, power supply economics, carrying to naval vessel.
Cable for ship cannot be normally used for marine small cores reactor environment, first is that marine small-sized nuclear reactor electricity consumption cable
It cannot be replaced after mounting and installation, the cable design service life needs to be consistent with marine small-sized nuclear reactor projected life, at present sea
The projected life of upper small-sized nuclear reactor is 60 years, and this requires the cable design service life reaches 60 years, this is cable for ship up to not
The requirement arrived, secondly cable for ship does not have radiotolerant requirement, cannot normal work in nuclear power design basis accident DBA
Make.
Currently, nuclear power station suggestion in China's has entered fast development, it is contemplated that arrive the year two thousand twenty bottom, China runs and in the nuclear power built
Unit is up to 100 sets or so.All kinds of cable for nuclear power station are also obtaining large-scale development and application, but marine small cores are anti-
It answers heap cable to have its particularity, is naval vessel narrow space first, it is desirable that marine small cores reactor cable bending radius is small, weight
Amount is light, and in addition marine small-sized nuclear reactor electricity consumption cable laying ambient humidity is big, often contacts with salt fog, has corrosiveness to cable,
It is required that marine small cores reactor cable insulative water-proof performance is good, it is desirable that sheath salt spray proof etc., third, offshore oil platform, warship
Ship's staff concentrates, and it is difficult to occur personnel escape when fire, to marine small-sized nuclear reactor electricity consumption cable low-smoke zero-halogen low-toxicity, fire-retardant
It is high Deng requirement, there is traditional cable for nuclear power station of mature technology to cannot be directly used to marine small-sized nuclear reactor at present.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the invention to propose a kind of small-sized used by nuclear reactor low-voltage power in sea
Cable and its manufacturing method, the cable fabricated out using the manufacturing method are capable of the normal of at sea small-sized nuclear reactor
It is run 60 years or more in operating condition, which has small, light-weight, the good high and low temperature resistance of bending radius, enough radiation hardness
Performance, preferable waterproof performance and good fire retardant insulating performance, can guarantee the cable in nominal situation or accident just
Often work.
To achieve the above object, the technical scheme adopted by the invention is that:
Marine small-sized used by nuclear reactor lv power cable, which includes cable core and oversheath, the cable
Core includes multiple insulated wire cores, filler and band；
The stranding lay ratio of multiple insulated wire cores is not more than 12, and the insulated wire cores include conductor and insulation from inside to outside
Layer, the conductor are twisted by multiply tinned copper wire, are twisted lay ratio and are not more than 14, the insulating layer is wrapped in outside conductor
Portion；The dosage rate of gamma-ray irradiation aging of the insulating layer under by nominal situation is 1kGy/h ± 0.5kGy/h, fracture
Elongation >=50%；1d~14d capacitor gaining rate that insulating layer is soaked at 50 DEG C under the test of capacitor gaining rate is not more than 6%；7d~14d
Capacitor gaining rate is not more than 2.5%；20 DEG C of volume resistivity >=1.0 × 10 of the insulating layer15Ω cm, intensity >=8.5MPa,
Oxygen index (OI) >=30；
The filler is filled between each insulated wire cores, and filler is by the low-smoke non-halogen flame-retardant of oxygen index (OI) >=35
Ethylene-propylene rubber is extruded in high-strength anti-flaming nylon rope and forms；
Outside the band package cable core；
The oversheath is wrapped in outside band, and the oversheath is after the gamma-ray irradiation aging under nominal situation
Dosage rate be 1kGy/h ± 0.5kGy/h, elongation at break >=50%；Intensity >=9MPa of the oversheath, oxygen index (OI) >=
32。
Further, the ethyl-propylene insulating materials that the insulating layer is fire-retardant using low-smoke zero-halogen low-toxicity.
Further, the band is the glass fibre belt of low-smoke non-halogen flame-retardant.
Further, the oversheath is the fire-retardant ethylene-propylene rubber composition of low-smoke zero-halogen low-toxicity.
The manufacturing step of the lv power cable includes: A, sorting；B, wire drawing；C, it anneals tin plating；D, conductor strand；E, it squeezes
Packet insulating layer；F, filler extrudes；G, stranding；H, oversheath is extruded；J, product inspection is packed and stored；
The conductor strand is twisted by the annealed tin plating copper wire of multiply, is twisted lay ratio and is not more than 14；
The stranding refers to after filler extrudes, synchronous to carry out stranding, and stranding lay ratio is not more than 12.
Further, filler extrude refer to the ethylene-propylene rubber of low-smoke non-halogen flame-retardant is not vulcanized extrude in high intensity hinder
Fire nylon rope.
Further, the glass fibre belt of low-smoke non-halogen flame-retardant is wrapped up after stranding outside cable core.
The fire-retardant ethylene-propylene rubber of low-smoke zero-halogen low-toxicity is extruded in low smoke and zero halogen resistance further, extruding oversheath and referring to
On the glass fibre belt of combustion, vulcanized when extruding.
The beneficial effects of the present invention are:
(1), the small-sized used by nuclear reactor lv power cable in sea of the invention is enclosed with using low outside each conductor
The insulating layer of the ethyl-propylene insulating materials of cigarette Halogen low-poison and combustion-resisting, so that the cable not only has good insulation electrical performance, height
Intensity, higher insulating materials oxygen index (OI) are also able to satisfy single insulated core flame-retardancy requirements, guarantee cable small-sized nuclear reaction at sea
Normal use in heap life cycle；
(2), the small-sized used by nuclear reactor lv power cable in sea of the invention, is tested by the old longevity assessment of heat, is guaranteed
The evaluation service life of insulating layer and oversheath can be greater than 60 years respectively, while be respectively provided with enough radiation-resistant properties, can be in sea
Guaranteed to remain to normally execute its function in generation design basis accident DBA and Post-DBA in the upper small cores reactor lifetime period
Energy；
(3), the small-sized used by nuclear reactor lv power cable in sea of the invention, conductor use multiply tinned copper wire with compared with
Small lay ratio (being not more than 14) is twisted and stranding lay ratio (no more than 12) is smaller, in addition soft second third is insulated, filled out
Object and ethylene-propylene rubber oversheath are filled, both ensure that the bending radius of finished cable, keeps it more soft, improves the use of cable
Service life；And the thinner thickness of oversheath is conducive to the weight for mitigating cable, provides convenience for the laying of cable；
(4), the small-sized used by nuclear reactor lv power cable in sea of the invention, the capacitor gaining rate of insulation require to ensure that electricity
Waterproof performance of the cable under nominal situation and wet environment, the laying environment for meeting marine small cores reactor environment humidity are wanted
It asks, further improves the service life of cable；
(5), the small-sized used by nuclear reactor lv power cable in sea of the invention, insulating layer are fire-retardant using low-smoke zero-halogen low-toxicity
Ethylene-propylene rubber, filler extrudes high-strength anti-flaming nylon rope using the ethylene-propylene rubber of low-smoke non-halogen flame-retardant, and band uses low cigarette
The glass fibre belt of halogen-free flameproof, the oversheath ethylene-propylene rubber fire-retardant using low-smoke zero-halogen low-toxicity, has stronger flame retardant property, can protect
Card cable meets the A class flame-retardancy requirements of IEC 60092-350 standard requirements.
Detailed description of the invention
Fig. 1 is the cross-sectional view of cable proposed by the invention；
Fig. 2 is the manufacturing flow chart of cable proposed by the invention.
In figure: 1, conductor；2, insulating layer；3, filler；4, band；5, oversheath.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made into one with reference to the accompanying drawing
Step illustrates.
In the present embodiment, as illustrated in fig. 1 and 2, marine small-sized used by nuclear reactor lv power cable, low-voltage power electricity
Cable includes cable core and oversheath 5, and the cable core includes multiple insulated wire cores, filler and band 4；
The stranding lay ratio of multiple insulated wire cores is not more than 12, and the insulated wire cores include conductor 1 and insulation from inside to outside
Layer 2, the conductor 1 is twisted by multiply tinned copper wire, is twisted lay ratio and is not more than 14, the insulating layer 2 is wrapped in conductor 1
Outside, the insulating layer 2 ethyl-propylene insulating materials fire-retardant using low-smoke zero-halogen low-toxicity；The insulating layer 2 is passing through nominal situation
Under the dosage rate of gamma-ray irradiation aging be 1kGy/h ± 0.5kGy/h, elongation at break >=50% can guarantee cable in sea
Normal use in the life cycle of upper small-sized nuclear reactor；1d~14d that insulating layer 2 is soaked at 50 DEG C under the test of capacitor gaining rate is electric
Hold gaining rate and is not more than 6%；7d~14d capacitor gaining rate is not more than 2.5%, ensure that the waterproof performance of the cable, in wet environment
Under can guarantee the electric property of cable, allow it to work normally；20 DEG C of volume resistivity >=1.0 × 10 of the insulating layer 215Ω·
Cm, intensity >=8.5MPa, oxygen index (OI) >=30, the cable electrical function admirable, pliability and intensity are higher, are guaranteeing cable electrical
It can guarantee the single flame-retardancy requirements of insulated wire cores while performance；
The filler 3 is extruded in high-strength anti-flaming nylon rope by the ethylene-propylene rubber of the low-smoke non-halogen flame-retardant of oxygen index (OI) >=35
It forms；High-strength anti-flaming nylon rope and ethylene-propylene rubber all have high flame resistance, it is ensured that finished cable meets IEC 60092-
The A class flame-retardancy requirements of 350 standard requirements；
The band 4 is the glass fibre belt of low-smoke non-halogen flame-retardant and is wrapped in outside cable core, due to the high flame resistance of band,
While guaranteeing cable core rounding, also ensure that finished cable meets the A class flame-retardancy requirements of IEC 60092-350 standard requirements；
The oversheath 5 is the fire-retardant ethylene-propylene rubber composition of low-smoke zero-halogen low-toxicity and is wrapped in outside band, the outer shield
Set 5 the dosage rate after the gamma-ray irradiation aging under nominal situation be 1kGy/h ± 0.5kGy/h, elongation at break >=
50%；Intensity >=9MPa of the oversheath, oxygen index (OI) >=32；Oversheath is soft, intensity is high, and 5 thickness of oversheath meets IEC
60092-350 standard requirements, sheath is thin, mitigates the outside diameter of cable and cable weight while can guarantee Cable Bending Radius；It is higher
Jacket material oxygen index (OI), can guarantee that cable meets the A class flame-retardancy requirements of IEC60092-350 standard requirements.
A kind of manufacturing method of such as above-mentioned lv power cable, the manufacturing step of the lv power cable include: A, choosing
Material；B, wire drawing；C, it anneals tin plating；D, conductor strand；E, extruded insulation layer；F, filler extrudes；G, stranding；H, outer shield is extruded
Set；J, product inspection is packed and stored；
Conductor strand, which refers to, to be twisted copper wire of the multiply wire drawing and annealing after tin plating to form conductor 1, and it is twisted
Lay ratio is not more than 14；
The extruded insulation layer 2, which refers to, is extruded in low-smoke zero-halogen low-toxicity fire-retardant ethyl-propylene insulating materials on conductor 1, and shape
At insulated wire cores；
The stranding, which refers to, twists together three insulated wire cores, and the lay ratio of stranding is not more than 12；At the same time,
The filler that the ethylene-propylene rubber of low-smoke non-halogen flame-retardant is extruded in the formation of high-strength anti-flaming nylon rope is filled between insulated wire cores；
Filler, which extrudes, to be referred to not vulcanizing the ethylene-propylene rubber of low-smoke non-halogen flame-retardant and extrudes in high-strength anti-flaming nylon rope；
It extrudes oversheath 5 and refers to the glass fibre belt that the fire-retardant ethylene-propylene rubber of low-smoke zero-halogen low-toxicity is extruded in low-smoke non-halogen flame-retardant
On, vulcanized when extruding；
Cable in the present invention when carrying out hot old longevity assessment, by the old longevity assessment of material heat obtain material lifetime with
Activation energy data calculates the heat ageing condition of cable equivalent simulation Thermal life evaluation further according to material activation energy data, after evaluation
Show that the service life is greater than 60 years；
Gamma-rays spoke of the insulating layer and oversheath of the cable obtained using the manufacturing method under by nominal situation
Illumination aging intergal dose 412.5kGy；Dosage rate is 1kGy/h ± 0.5kGy/h, reserved elongation at break >=50%；
It is impregnated in the time of cable submerging test at 50 DEG C 1-14 days, 1 day~14 days capacitor gaining rates are not more than 6%, 7
It~14 days capacitor gaining rates are not more than 2.5%, and it ensure that the waterproof performance of cable, ensure that the normal of cable in wet condition
Electric property；
The cable, by blowtorch for fire 40 minutes, after cable stops burning, dries examination when carrying out fire retardancy test
It tests, the maximum charing range for measuring the cable is 2.3m, and the flame retardant property of the cable reaches the A of IEC60092-350 standard requirements
Class requirement, and the cable energy normal use after fire retardancy test.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. marine small-sized used by nuclear reactor lv power cable, it is characterised in that: the lv power cable includes cable core and outer shield
Set, the cable core includes multiple insulated wire cores, filler and band；
The stranding lay ratio of multiple insulated wire cores is not more than 12, and the insulated wire cores include conductor and insulating layer, institute from inside to outside
It states conductor to be twisted by multiply tinned copper wire, is twisted lay ratio and is not more than 14, the insulating layer is wrapped in outside conductor；It is described
Insulating layer is 1kGy/h ± 0.5kGy/h in the dosage rate by the gamma-ray irradiation aging under nominal situation, elongation at break >=
50%；1d~14d capacitor gaining rate that insulating layer is soaked at 50 DEG C under the test of capacitor gaining rate is not more than 6%；7d~14d capacitor gaining rate
No more than 2.5%；20 DEG C of volume resistivity >=1.0 × 10 of the insulating layer15Ω cm, intensity >=8.5MPa, oxygen index (OI) >=
30；
The filler is filled between each insulated wire cores, and filler by oxygen index (OI) >=35 low-smoke non-halogen flame-retardant second third
Rubber is extruded in high-strength anti-flaming nylon rope and forms；
The band is wrapped in outside cable core；
The oversheath is wrapped in outside band, and the oversheath is in the agent after the gamma-ray irradiation aging under nominal situation
Dose rate is 1kGy/h ± 0.5kGy/h, elongation at break >=50%；Intensity >=9MPa of the oversheath, oxygen index (OI) >=32.
2. power cable according to claim 1, it is characterised in that: the insulating layer is fire-retardant using low-smoke zero-halogen low-toxicity
Ethyl-propylene insulating materials.
3. power cable according to claim 1, it is characterised in that: the band is the glass fibre belt of low-smoke non-halogen flame-retardant.
4. power cable according to claim 1, it is characterised in that: the oversheath is the fire-retardant second of low-smoke zero-halogen low-toxicity
Propylene rubber composition.
5. a kind of manufacturing method of lv power cable according to any one of claims 1-4, it is characterised in that: the low tension
The manufacturing step of power cable includes: A, sorting；B, wire drawing；C, it anneals tin plating；D, conductor strand；E, extruded insulation layer；F, it fills
Object extrudes；G, stranding；H, oversheath is extruded；J, product inspection is packed and stored；
The conductor strand is twisted by the annealed tin plating copper wire of multiply, is twisted lay ratio and is not more than 14；
The stranding refers to after filler extrudes, synchronous to carry out stranding, and stranding lay ratio is not more than 12.
6. the manufacturing method of lv power cable according to claim 5, it is characterised in that: filler extrudes that refer to will be low
The ethylene-propylene rubber of cigarette halogen-free flameproof, which does not vulcanize, to be extruded in high-strength anti-flaming nylon rope.
7. the manufacturing method of lv power cable according to claim 6, it is characterised in that: packet outside cable core after stranding
Wrap up in the glass fibre belt of low-smoke non-halogen flame-retardant.
8. the manufacturing method of lv power cable according to claim 7, it is characterised in that: extruding that oversheath refers to will be low
The ethylene-propylene rubber of cigarette Halogen low-poison and combustion-resisting is extruded on the glass fibre belt of low-smoke non-halogen flame-retardant, is vulcanized when extruding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811614038.2A CN109712751A (en) | 2018-12-27 | 2018-12-27 | Marine small-sized used by nuclear reactor lv power cable and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811614038.2A CN109712751A (en) | 2018-12-27 | 2018-12-27 | Marine small-sized used by nuclear reactor lv power cable and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109712751A true CN109712751A (en) | 2019-05-03 |
Family
ID=66257840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811614038.2A Pending CN109712751A (en) | 2018-12-27 | 2018-12-27 | Marine small-sized used by nuclear reactor lv power cable and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109712751A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202796154U (en) * | 2012-05-24 | 2013-03-13 | 安徽复兴电缆集团有限公司 | Low-voltage reel flexible cable for harbor |
| CN206961552U (en) * | 2017-06-22 | 2018-02-02 | 上海胜华电缆（集团）有限公司 | A kind of low temperature resistant field movable high-tension cable rubber flexible cable |
-
2018
- 2018-12-27 CN CN201811614038.2A patent/CN109712751A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202796154U (en) * | 2012-05-24 | 2013-03-13 | 安徽复兴电缆集团有限公司 | Low-voltage reel flexible cable for harbor |
| CN206961552U (en) * | 2017-06-22 | 2018-02-02 | 上海胜华电缆（集团）有限公司 | A kind of low temperature resistant field movable high-tension cable rubber flexible cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104715840B (en) | The maritime platform essential safe type oil resistant fireproof cable of resistance to mud and preparation technology | |
| CN202549395U (en) | Watertight-type control cable adopting ethylene propylene insulation and chlorosulfonated polyethylene for ships | |
| CN102332336A (en) | Heat-resistant shielded power cable for nuclear power stations | |
| CN202549396U (en) | Watertight-type low-smoke control cable for ships | |
| CN102737769A (en) | Novel low-smoke zero-halogen flame-retardant fire-resistant and impact-resistant cable for nuclear power station | |
| CN101465176A (en) | Power cable for 1E grade K3 genus nuclear power plant | |
| CN201369187Y (en) | Control cable for nuclear power station | |
| CN213781632U (en) | Special control cable with ozone resistance for offshore wind turbine | |
| CN206388536U (en) | Used in nuclear power station low-smoke halogen-free flame retardant fire-resisting cable | |
| CN203444819U (en) | Anti-interference environment-friendly computer cable | |
| CN205645390U (en) | Third generation is instrument cable for nuclear power station | |
| CN205487496U (en) | Fire -retardant flexible cable of wisdom energy wind power tower cylinder interior illumination environmental protection | |
| CN204423958U (en) | The maritime platform essential safe type oil resistant fireproof cable of resistance to mud | |
| CN109712751A (en) | Marine small-sized used by nuclear reactor lv power cable and its manufacturing method | |
| CN205645366U (en) | Third generation is low voltage power cable for nuclear power station | |
| CN205016296U (en) | Fire -resistant high temperature resistance medium voltage power cable | |
| CN103854733A (en) | Control cable for instruments | |
| CN109637709A (en) | Marine small-sized used by nuclear reactor medium-pressure power cable and its manufacturing method | |
| CN203895165U (en) | Low-smoke halogen-free flame-retardant fireproof communication cable for ships | |
| CN207676714U (en) | Halogen-free flameproof heat-resistant flexible PE cables | |
| CN209947508U (en) | Low-voltage power cable for small-sized nuclear reactor on sea | |
| CN201584193U (en) | Silicon rubber control cable | |
| CN205920792U (en) | Silicon rubber control cable | |
| CN104157357A (en) | Low-smoke zero-halogen solar photovoltaic cable | |
| WO2021103299A1 (en) | Nuclear power cable for offshore nuclear power platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190503 |