CN107490505A - A kind of heat-shrink tube test specimen and its preparation method and application - Google Patents
A kind of heat-shrink tube test specimen and its preparation method and application Download PDFInfo
- Publication number
- CN107490505A CN107490505A CN201710637508.6A CN201710637508A CN107490505A CN 107490505 A CN107490505 A CN 107490505A CN 201710637508 A CN201710637508 A CN 201710637508A CN 107490505 A CN107490505 A CN 107490505A
- Authority
- CN
- China
- Prior art keywords
- heat
- shrink tube
- test specimen
- preparation
- tube test
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
A kind of heat-shrink tube test specimen and its preparation method and application.The preparation method of the heat-shrink tube test specimen is using plain conductor come the core of replacement cables; and the first shrinkable sleeve is located to the insulating barrier of plain conductor dummycable; the second heat-shrink tube dummycable insulation protective jacket is set in outer layer again, so as to exclude the interference that the fire resistance of cable is come to combustibility calibration tape.Heat-shrink tube test specimen is prepared using the preparation method, there is the few property of disturbing factor, is applied in heat-shrink tube experiment, is more significantly improved the accuracy of test result, allow test result to more conform to the combustion characteristics of heat-shrink tube in itself.
Description
Technical field
The present invention relates to material properties test field, in particular to a kind of heat-shrink tube test specimen and its preparation side
Method and application.
Background technology
Cables of nuclear power working environment is very harsh, and in whole lifetime, cable must be subjected to electricity under the conditions of nuclear environment
Field, temperature, oxygen, nuclear radiation, steam moisture, ozone and chemicals, and mechanical stress, thermal deformation, vibrations abrasion it is tired
The physical causes such as labor, creep occur simultaneously in comprehensive function together.For applying the thermal contraction cable accessory in nuclear power station, due to it
Field of employment environmental condition is special, it is desirable to which its is safe, that is, requires that it should not only have general thermal contraction cable accessory to be had
The excellent electric property that has, mechanical and physical performance, should also have good fire resistance.
In the prior art, shrinkable sleeve is located at outside cable by generally use, using cable as the carrier of heat-shrink tube, to carry out
Bunched burning test.But such test method, very big error is still suffered from, the screening to heat-shrink tube is not strict, and many can
With by the heat-shrink tube of experiment, the actually and not up to grade safe to use of nuclear grade cable, so as to bring safety after actual load
Hidden danger.
The content of the invention
It is an object of the invention to provide a kind of preparation method of heat-shrink tube test specimen, its preparation process is simply efficient,
Obtained heat-shrink tube test specimen in bunched burning test, can exclusive PCR factor well, more accurately tested
As a result, test result is allowed to more conform to the combustion characteristics of heat-shrink tube in itself.
The second object of the present invention is to provide a kind of heat-shrink tube test specimen, its by above-mentioned heat-shrink tube test specimen system
Preparation Method is prepared, and it exclusive PCR factor, acquisition can more accurately test knot well in bunched burning test
Fruit.
The third object of the present invention is in the answering in heat-shrink tube combustion test in a kind of above-mentioned heat-shrink tube test specimen of offer
With to improve the accuracy of test result, allowing test result to more conform to the combustion characteristics of heat-shrink tube in itself.
What embodiments of the invention were realized in：
A kind of preparation method of heat-shrink tube test specimen, it includes：
By the first shrinkable sleeve outside plain conductor, first time pyrocondensation is carried out, obtains band pipe wire；
Multiple band pipe wire composition band pipe wire groups, the second shrinkable sleeve is located at outside band pipe wire group, carried out second
Pyrocondensation.
A kind of heat-shrink tube test specimen, it is prepared by the preparation method of above-mentioned heat-shrink tube test specimen.
A kind of application of above-mentioned heat-shrink tube test specimen in heat-shrink tube combustion test.
The beneficial effect of the embodiment of the present invention is：
The invention provides a kind of preparation method of heat-shrink tube test specimen.In the prior art, heat-shrink tube test sample is all
It is the carrier using cable directly as heat-shrink tube test sample, still, passes through wound in long term production by inventor
The work for the property made finds that the nuclear grade cable used in the prior art, the flame retardant effect of itself is fine, to the flammability of heat-shrink tube
Can test has stronger interference effect.In many cases, even if the flame retardant effect of heat-shrink tube is not fine, it relies on cable sheet
The fire resistance of body can also pass through experiment.Therefore, the present invention using plain conductor come the core of replacement cables, it is and hot by first
The draw is sheathed on the insulating barrier of plain conductor dummycable, then sets the second heat-shrink tube dummycable insulation protective jacket in outer layer,
So as to exclude the interference that the fire resistance of cable is come to combustibility calibration tape.
Present invention also offers a kind of heat-shrink tube test specimen being prepared by above-mentioned preparation method, heat-shrink tube experiment
Sample has the few property of disturbing factor, can highlight the combustion characteristics of heat-shrink tube in itself in testing.
Present invention also offers a kind of preparation method of above-mentioned heat-shrink tube test specimen answering in heat-shrink tube combustion test
With.Its interference by excluding cable, the accuracy of test result is improved, allow test result to more conform to heat-shrink tube in itself
Combustion characteristics.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
The cross-sectional view for the heat-shrink tube test specimen that Fig. 1 is provided by the embodiment of the present invention 1.
Icon：100- heat-shrink tube test specimens；The heat-shrink tubes of 110- first；120- plain conductors；130- band pipe wires；140-
Second heat-shrink tube.
Embodiment
, below will be in the embodiment of the present invention to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer
Technical scheme be clearly and completely described.Unreceipted actual conditions person, builds according to normal condition or manufacturer in embodiment
The condition of view is carried out.Agents useful for same or the unreceipted production firm person of instrument, it is the conventional production that can be obtained by commercially available purchase
Product.
A kind of preparation method of heat-shrink tube test specimen, it includes：
S1. by the first shrinkable sleeve outside plain conductor, first time pyrocondensation is carried out, obtains band pipe wire.
Further, in embodiments of the present invention, used in nuclear power station 1E level K1~K3 type shrinkable tubes are related generally to.
1E levels are reactor and nuclear power station electric system and the level of security of equipment.Refer to and complete reactor emergency shut-down；Peace
Full shell isolation, the emergent cooling of reactor core, reactor waste export, the thermal conductivity of containment vessel go out；Prevent radioactive substance to week
Enclose the safe level of the electrical system equipment of the functions such as environmental emission.
K1 class electric operators.Within nuclear reactor safety shell, under ambient environment and in SL2 (peaces
The earthquake of full cut-off heap) remain to perform its defined function below load and during accident or after accident.
K2 class electric operators.Within nuclear reactor safety shell, under ambient environment and in SL2 (peaces
The earthquake of full cut-off heap) remain to perform its defined function under load.
K3 class electric operators.Beyond nuclear reactor safety shell, under ambient environment and in SL2 (peaces
The earthquake of full cut-off heap) remain to perform its defined function under load.
Wherein, the first heat-shrink tube is mesospore pipe or double-wall pipe.
Mesospore pipe, also known as mesospore gluing thermal shrinkage pipe, it is commonly used to the insulating protection of mesolow power product and communication
The waterproof of product parting, product inwall scribble screw type, directly apply high performance hot melt adhesive, have well close after contraction
Seal effect.Its shrinkage rates >=2:1.
Double-wall pipe, also known as double-walled gluing thermal shrinkage pipe, it is the semi-flexible heat-shrink tube that a kind of internal layer has PUR.Outer layer is
It is made up of irradiated crosslinked polyalkene, internal layer is the colloidality inwall specially designed.Inwall melts during heating, and shrinks and fill with outer wall
Hole or gap, double-wall pipe uniform wall thickness, solid after cooling, it shrinks fast, shrinkage rates 3:1 or 4:1.It is widely used in
The wiring waterproof of electronic equipment, the sealing of electric wire bifurcation are fixed, the anti-corrosion protection of metal pipe line, and are prevented by macromolecular chain
Loosen and come off caused by relaxation.
In embodiments of the present invention, mesospore pipe and double-wall pipe could be used for the preparation of heat-shrink tube test specimen, eliminate
After the interference that the fire resistance of cable in itself is brought, the combustibility of mesospore pipe or double-wall pipe can be measured exactly.
The material of first heat-shrink tube mainly includes cross-linked polyolefin and EP rubbers.EP rubbers be using ethene and propylene as
The copolymer of base monomer synthesis, the ageing-resistant performance such as its resistance to ozone, heat-resisting, weather-proof is excellent, has good chemicals-resistant, electricity
Insulating properties, impact elasticity, cryogenic property, low-density and high fillibility and hot water resistance and water-fast vapor permeability etc., are adapted to nuclear power
The adverse circumstances stood.But EP rubbers does not have pyrocondensation function, it is necessary to be used cooperatively with cross-linked polyolefin.
Wherein, cross-linked polyolefin include crosslinked polyethylene, crosslinked polypropylene, cross-linked ethylene-propylene acid methyl terpolymer and
At least one of cross-linked ethylene-acetic acid hexene copolymer.Cross-linked polyolefin has good pyrocondensation function after crosslinking, with
EP rubbers is used cooperatively, and just can overcome the disadvantages that the deficiency of EP rubbers, with the same of excellent ageing-resistant and erosion-resisting characteristics
When, possess pyrocondensation function.
It is worth noting that, above material heat-shrink tube, which is only part cited in the embodiment of the present invention, has preferably burning
The heat-shrink tube of performance.As a kind of method for making sample, other heat-shrink tubes, ABS heat-shrink tubes, PVC heat-shrink tubes, PET heat-shrink tubes etc.,
Sample can also be prepared according to the method that the embodiment of the present invention is provided, so as to obtain more accurately combustion test data.
Plain conductor includes any of aluminum stranded conductor, copper stranded conductor, tin plating copper stranded conductor and solid copper wire.The embodiment of the present invention
Employed in plain conductor be conventional nuclear grade cable core material, it is not only obtained easily, and can be with maximum limit
Working environment of the simulation heat-shrink tube in practical application is spent, makes the result of test more accurate.
In embodiments of the present invention, the first shrinkable sleeve is located at plain conductor outer layer, and heating sends out the first heat-shrink tube
Heat contracts so that band pipe wire is made.First heat-shrink tube can select pyrocondensation ratio as 3:1 or 2:1 heat-shrink tube, and ensure first
Internal diameter of the heat-shrink tube before pyrocondensation is more than the external diameter of plain conductor, while the internal diameter after pyrocondensation is less than the external diameter of plain conductor,
So that the first heat-shrink tube closely can be coated on outside plain conductor after pyrocondensation.
The process of first time pyrocondensation, which can use, will be cased with the plain conductor of the first heat-shrink tube in 500~600 DEG C of flame
5~10s of upper stop mode carries out quick pyrocondensation.During first time pyrocondensation, the shrinkage factor of the first heat-shrink tube reaches
70%~80%.Find by the creative work of inventor, when the shrinkage factor of the first heat-shrink tube is 70%~80%, can guarantee that
The intensity of first heat-shrink tube, its properties are preferable.It is worth noting that, in the other preferred embodiments of the present invention, can also
The plain conductor for being cased with the first heat-shrink tube is placed in 150~200 DEG C of baking oven and toasts 5~10min and carries out pyrocondensation at a slow speed, can be with
Needs in practical operation are selected.
A kind of preparation method of heat-shrink tube test specimen provided by the present invention, in addition to：
S2. more band pipe wire composition band pipe wire groups, the second shrinkable sleeve is located at outside band pipe wire group, carries out second
Secondary pyrocondensation.
Wherein, the quantity with pipe wire can be 3~8 in each catheter guide wire group, most on the market to simulate
Multicore cable, its specific set-up mode, it is referred to commercially available multicore cable and is configured.
Second heat-shrink tube is similarly mesospore pipe or double-wall pipe.The material of second heat-shrink tube mainly includes cross-linked polyolefin and second
Third rubber.It is preferably the material maintained like with the first heat-shrink tube, consistent with the combustibility of two heat-shrink tubes inside and outside guarantee,
Make test result more single.
Likewise, the process of second of pyrocondensation, which can use, will be cased with the band pipe wire group of the second heat-shrink tube in 500~600
DEG C flame on stop 5~10s mode and carry out quick pyrocondensation.During second of pyrocondensation, the receipts of the second heat-shrink tube
Shrinkage reaches 70%~80%.Found by the creative work of inventor, when the second heat-shrink tube shrinkage factor 70%~
80%, the intensity of the second heat-shrink tube is can guarantee that, its properties is preferable.It is worth noting that, in the other preferably implementations of the present invention
In example, it can also will be cased with being placed in pipe wire group in 150~200 DEG C of baking oven for the second heat-shrink tube and toast 5~10min progress
Pyrocondensation at a slow speed, it can be selected according to the needs in practical operation.
Heat-shrink tube test specimen is prepared in a kind of preparation method by above-mentioned heat-shrink tube test specimen.
A kind of application of above-mentioned heat-shrink tube test specimen in heat-shrink tube combustion test.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1
The present embodiment provides a kind of heat-shrink tube test specimen 100, and shown in its cross section reference picture 1, its preparation method is as follows：
S1. the first heat-shrink tube 110 is sheathed on outside plain conductor 120, in heating 5s on 500~600 DEG C of flame, obtained
Band pipe wire 130.
S2. 3 band pipe wires 130 are formed into band pipe wire group, and the second heat-shrink tube 140 are sheathed on band pipe wire group,
In heating 5s on 500~600 DEG C of flame, required heat-shrink tube test specimen 100 is obtained.
S3. the both ends irregularities of shearing test sample 100, length 3.5m is retained.
Wherein, the first heat-shrink tube 110 and the second heat-shrink tube 140 are mesospore pipe, and the material of the two is identical, and main material is equal
For crosslinked polyethylene and EP rubbers, safe class reaches 1E level K1 classes.Plain conductor 120 using with nuclear grade cable 3 ×
1.0mm2The solid copper wire of cable core same diameter.
Embodiment 2
The present embodiment provides a kind of heat-shrink tube test specimen, and its preparation method is as follows：
S1. by the first shrinkable sleeve outside plain conductor, in heating 10s on 500~600 DEG C of flame, band pipe is obtained
Wire.
S2. by 3 band pipe wires composition band pipe wire groups, and the second shrinkable sleeve is located at band pipe wire group, in 500~
10s is heated on 600 DEG C of flame, obtains required heat-shrink tube test specimen.
S3. shearing test sample both ends irregularities, length 3.5m is retained.
Wherein, the first heat-shrink tube and the second heat-shrink tube are mesospore pipe, and the material of the two is identical, and main material is crosslinking
Polyethylene and EP rubbers, safe class reach 1E level K3 classes.Plain conductor uses and 3 × 1.0mm of nuclear grade cable2Cable core
The copper stranded conductor of same diameter.
Embodiment 3
The present embodiment provides a kind of heat-shrink tube test specimen, and its preparation method is as follows：
S1. the first shrinkable sleeve is heated into 10min in 150 DEG C of baking oven outside plain conductor, obtains band pipe and lead
Line.
S2. by 6 band pipe wire composition band pipe wire groups, and the second shrinkable sleeve is located at band pipe wire group, in 150 DEG C
Baking oven in heat 10min, obtain needed for heat-shrink tube test specimen.
S3. shearing test sample both ends irregularities, length 3.5m is retained.
Wherein, the first heat-shrink tube and the second heat-shrink tube are double-wall pipe, and the material of the two is identical, and main material is crosslinking
Polypropylene and EP rubbers, safe class reach 1E level K3 classes.Plain conductor uses and 3 × 1.0mm of nuclear grade cable2Cable core
The copper stranded conductor of same diameter.
Embodiment 4
The present embodiment provides a kind of heat-shrink tube test specimen, and its preparation method is as follows：
S1. the first shrinkable sleeve is heated into 5min in 200 DEG C of baking oven outside plain conductor, obtains band pipe wire.
S2. by 8 band pipe wire composition band pipe wire groups, and the second shrinkable sleeve is located at band pipe wire group, in 200 DEG C
Baking oven in heat 5min, obtain needed for heat-shrink tube test specimen.
S3. shearing test sample both ends irregularities, length 3.5m is retained.
Wherein, the first heat-shrink tube and the second heat-shrink tube are mesospore pipe, and the material of the two is identical, and main material is crosslinking
Ethylene-methyl acrylate copolymer and EP rubbers, safe class reach 1E level K3 classes.Plain conductor uses and nuclear grade cable 3
×1.0mm2The tin plating copper stranded conductor of cable core same diameter.
Embodiment 5
The present embodiment provides a kind of heat-shrink tube test specimen, and its preparation method is as follows：
S1. the first shrinkable sleeve is heated into 8min in 180 DEG C of baking oven outside plain conductor, obtains band pipe wire.
S2. by 8 band pipe wires composition band pipe wire groups, and the second shrinkable sleeve is located at band pipe wire group, in 500~
8s is heated on 600 DEG C of flame, obtains required heat-shrink tube test specimen.
S3. shearing test sample both ends irregularities, length 3.5m is retained.
Wherein, the first heat-shrink tube and the second heat-shrink tube are mesospore pipe, and the material of the two is identical, and main material is crosslinking
Ethyl vinyl acetate hexene copolymer and EP rubbers, safe class reach 1E level K3 classes.Plain conductor use with nuclear grade cable 3 ×
1.0mm2The aluminum stranded conductor of cable core same diameter.
It is worth noting that, the heat-shrink tube test specimen of the embodiment of the present invention 1~5 according to standard GB/T/
T18380.34:2008 " the burn test methods of combustion test third portion of the cable under flame condition, bunchy electric wire or cable
It is prepared by B classes ".The minimum length of each heat-shrink tube test specimen is 3.5m, is met nonmetallic nominal overall in every meter of sample
Product is 3.5L requirement.The test specimen of other standards refers to embodiment 1~5 and prepared.
In summary, the invention provides a kind of preparation method of heat-shrink tube test specimen.In the prior art, heat-shrink tube is surveyed
Sample is originally all the carrier using cable directly as heat-shrink tube test sample, still, by inventor in long term production
It is middle to find that the nuclear grade cable used in the prior art, the flame retardant effect of itself is fine, to heat-shrink tube by performing creative labour
Combustibility test have stronger interference effect.In many cases, even if the flame retardant effect of heat-shrink tube is not fine, its according to
It can also pass through experiment by the fire resistance of cable in itself.Therefore, the present invention using plain conductor come the core of replacement cables, and
First shrinkable sleeve is located to the insulating barrier of plain conductor dummycable, then sets the second heat-shrink tube dummycable to insulate in outer layer
Protective case, so as to exclude the interference that the fire resistance of cable is come to combustibility calibration tape.
Present invention also offers a kind of heat-shrink tube test specimen being prepared by above-mentioned preparation method, heat-shrink tube experiment
Sample has the few property of disturbing factor, can highlight the combustion characteristics of heat-shrink tube in itself in testing.
Present invention also offers a kind of preparation method of above-mentioned heat-shrink tube test specimen answering in heat-shrink tube combustion test
With.Its interference by excluding cable, the accuracy of test result is improved, allow test result to more conform to heat-shrink tube in itself
Combustion characteristics.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. preparation method of heat-shrink tube test specimen, it is characterised in that including：By the first shrinkable sleeve outside plain conductor, first time pyrocondensation is carried out, obtains band pipe wire；Multiple band pipe wires composition band pipe wire groups, by the second shrinkable sleeve outside the band pipe wire group, carry out the Secondary pyrocondensation.
- 2. the preparation method of heat-shrink tube test specimen according to claim 1, it is characterised in that the first time pyrocondensation Concretely comprise the following steps：By the plain conductor for being arranged with first heat-shrink tube heated at 150~200 DEG C 5~10min or 5~10s is heated at 500~600 DEG C.
- 3. the preparation method of heat-shrink tube test specimen according to claim 2, it is characterised in that the first time pyrocondensation During, the shrinkage factor of first heat-shrink tube reaches 70~80%.
- 4. the preparation method of heat-shrink tube test specimen according to claim 1, it is characterised in that second of pyrocondensation Concretely comprise the following steps：By the band pipe wire group for being arranged with second heat-shrink tube heated at 150~200 DEG C 5~10min or Person heats 5~10s at 500~600 DEG C.
- 5. the preparation method of heat-shrink tube test specimen according to claim 4, it is characterised in that second of pyrocondensation During, the shrinkage factor of second heat-shrink tube reaches 70~80%.
- 6. a kind of heat-shrink tube test specimen, it is characterised in that as the heat-shrink tube test specimen described in any one of Claims 1 to 5 Preparation method be prepared.
- 7. heat-shrink tube test specimen according to claim 6, it is characterised in that first heat-shrink tube and/or described The material of two heat-shrink tubes mainly includes cross-linked polyolefin and EP rubbers.
- 8. heat-shrink tube test specimen according to claim 7, it is characterised in that the cross-linked polyolefin includes being crosslinked poly- second At least one of alkene, crosslinked polypropylene, cross-linked ethylene-propylene acid methyl terpolymer and cross-linked ethylene-acetic acid hexene copolymer.
- 9. heat-shrink tube test specimen according to claim 6, it is characterised in that the plain conductor includes aluminum stranded conductor, copper Any of twisted wire, tin plating copper stranded conductor and solid copper wire.
- A kind of 10. application of the heat-shrink tube test specimen in heat-shrink tube combustion test as described in any one of claim 6~9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637508.6A CN107490505B (en) | 2017-07-28 | 2017-07-28 | Heat-shrinkable tube test sample and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637508.6A CN107490505B (en) | 2017-07-28 | 2017-07-28 | Heat-shrinkable tube test sample and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107490505A true CN107490505A (en) | 2017-12-19 |
| CN107490505B CN107490505B (en) | 2020-06-02 |
Family
ID=60643928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710637508.6A Active CN107490505B (en) | 2017-07-28 | 2017-07-28 | Heat-shrinkable tube test sample and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107490505B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034276A (en) * | 2020-07-08 | 2020-12-04 | 通鼎互联信息股份有限公司 | Testing method for polyolefin insulation horizontal twisted pair cable for insulation digital communication |
| CN113884615A (en) * | 2021-08-31 | 2022-01-04 | 中国核电工程有限公司 | Flame-retardant test method for cable heat-shrinkable tubing |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2121064U (en) * | 1992-06-01 | 1992-11-04 | 宋文森 | High-temp. cable |
| CN101100537A (en) * | 2006-07-07 | 2008-01-09 | 中国科学院上海应用物理研究所 | Low-smoke halide-free fireproof polyolefine material and its preparation method and application |
| CN201364751Y (en) * | 2009-01-16 | 2009-12-16 | 深圳市惠程电气股份有限公司 | 35KV aluminum tube bus insulated by polyolefin heat-shrinkable tube |
| CN102432937A (en) * | 2011-08-18 | 2012-05-02 | 长园集团股份有限公司 | 1E-grade K1-class halogen-free flame-retardant heat-shrinkable tube for nuclear power station and preparation method thereof |
| CN102593774A (en) * | 2009-06-03 | 2012-07-18 | 江苏达胜热缩材料有限公司 | Heat-shrinkable bus protection sleeve |
| CN103012939A (en) * | 2012-09-29 | 2013-04-03 | 深圳市沃尔核材股份有限公司 | Ultraviolet light cross-linking heat-shrinkage pipe material and method for producing ultraviolet light cross-linking heat-shrinkage pipe |
| CN203085271U (en) * | 2013-01-10 | 2013-07-24 | 安徽华津电缆集团有限公司 | Polyvinyl chloride insulation power cable |
| CN203150282U (en) * | 2013-03-21 | 2013-08-21 | 深圳市沃尔核材股份有限公司 | Fireproof cable |
| CN104844889A (en) * | 2015-04-01 | 2015-08-19 | 无锡龙舜实业有限公司 | Double-wall heat-shrinkable tube |
-
2017
- 2017-07-28 CN CN201710637508.6A patent/CN107490505B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2121064U (en) * | 1992-06-01 | 1992-11-04 | 宋文森 | High-temp. cable |
| CN101100537A (en) * | 2006-07-07 | 2008-01-09 | 中国科学院上海应用物理研究所 | Low-smoke halide-free fireproof polyolefine material and its preparation method and application |
| CN201364751Y (en) * | 2009-01-16 | 2009-12-16 | 深圳市惠程电气股份有限公司 | 35KV aluminum tube bus insulated by polyolefin heat-shrinkable tube |
| CN102593774A (en) * | 2009-06-03 | 2012-07-18 | 江苏达胜热缩材料有限公司 | Heat-shrinkable bus protection sleeve |
| CN102432937A (en) * | 2011-08-18 | 2012-05-02 | 长园集团股份有限公司 | 1E-grade K1-class halogen-free flame-retardant heat-shrinkable tube for nuclear power station and preparation method thereof |
| CN103012939A (en) * | 2012-09-29 | 2013-04-03 | 深圳市沃尔核材股份有限公司 | Ultraviolet light cross-linking heat-shrinkage pipe material and method for producing ultraviolet light cross-linking heat-shrinkage pipe |
| CN203085271U (en) * | 2013-01-10 | 2013-07-24 | 安徽华津电缆集团有限公司 | Polyvinyl chloride insulation power cable |
| CN203150282U (en) * | 2013-03-21 | 2013-08-21 | 深圳市沃尔核材股份有限公司 | Fireproof cable |
| CN104844889A (en) * | 2015-04-01 | 2015-08-19 | 无锡龙舜实业有限公司 | Double-wall heat-shrinkable tube |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034276A (en) * | 2020-07-08 | 2020-12-04 | 通鼎互联信息股份有限公司 | Testing method for polyolefin insulation horizontal twisted pair cable for insulation digital communication |
| CN113884615A (en) * | 2021-08-31 | 2022-01-04 | 中国核电工程有限公司 | Flame-retardant test method for cable heat-shrinkable tubing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107490505B (en) | 2020-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU186787U1 (en) | POWER CABLE | |
| RU186786U1 (en) | CABLE CONTROL | |
| RU188206U1 (en) | FIRE RESISTANT CABLE | |
| Anandakumaran et al. | Condition assessment of cable insulation systems in operating nuclear power plants | |
| CN104094364A (en) | Cable comprising an element indicating water infiltration and method using said element | |
| JP6975038B2 (en) | Radiation resistant and heat resistant cable | |
| CN105866015A (en) | Method and system for evaluating ageing life of crosslinked polyethylene insulating cable for smart energy | |
| CN107134303A (en) | Instrument cable for nuclear power station | |
| CN107490505A (en) | A kind of heat-shrink tube test specimen and its preparation method and application | |
| Aurtherson et al. | Experimental testing and evaluation of coating on cables in container fire test facility | |
| US11651870B2 (en) | Cable with semi-conducting outermost layer | |
| CN101465176A (en) | Power cable for 1E grade K3 genus nuclear power plant | |
| RU160062U1 (en) | TEST CABLE WITH INSULATION AND HALOGEN-FREE SHELL | |
| CN201130548Y (en) | Complete performance nuclear power plant cable | |
| CN109559852A (en) | A kind of manufacturing method of 1E grades of K3 class cables of used in nuclear power station high fire-retardance low release | |
| CN205810397U (en) | A kind of 60 year life-span compensating cable used for nuclear power station of simple process | |
| CN209912603U (en) | Environment-friendly flame-retardant fire-resistant medium-voltage power cable | |
| CN205508495U (en) | Flexible fireproof cable | |
| CN205489427U (en) | Fire prevention cable terminal connectors | |
| RU171278U1 (en) | POWER CABLE COLD RESISTANT | |
| CN215007652U (en) | Control cable of easy maintenance of intelligence accuse temperature | |
| CN204905595U (en) | Cable joint | |
| RU139485U1 (en) | ELECTRICAL CABLE | |
| CN107505255A (en) | A kind of preprocess method of heat-shrink tube and its application | |
| CN112133471A (en) | Computer cable with crosslinked polyethylene insulation flame-retardant polyvinyl chloride sheath |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000 Jinlong Avenue, Baolong Street, Longgang District, Shenzhen City, Guangdong Province Patentee after: HONGSHANG HEAT SHRINKABLE MATERIALS Co.,Ltd. Address before: No. 8 Longgang District of Shenzhen City, Guangdong province 518000 Longgang Street Baolong Industrial City Jinlong Avenue Patentee before: HONGSHANG HEAT SHRINKABLE MATERIALS Co.,Ltd. |