CN106644908A - Method and device for evaluating durability of cable and protective sleeve in hygrothermal environment - Google Patents
Method and device for evaluating durability of cable and protective sleeve in hygrothermal environment Download PDFInfo
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- CN106644908A CN106644908A CN201611075661.6A CN201611075661A CN106644908A CN 106644908 A CN106644908 A CN 106644908A CN 201611075661 A CN201611075661 A CN 201611075661A CN 106644908 A CN106644908 A CN 106644908A
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- Prior art keywords
- cable
- sample
- pressure
- sleeve pipe
- protection sleeve
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000001681 protective effect Effects 0.000 title abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000008367 deionised water Substances 0.000 claims abstract description 8
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 8
- 238000013441 quality evaluation Methods 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 238000012549 training Methods 0.000 abstract description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 14
- 239000000347 magnesium hydroxide Substances 0.000 description 14
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 14
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 11
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 11
- 230000032683 aging Effects 0.000 description 10
- 238000002329 infrared spectrum Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 238000010998 test method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000013112 stability test Methods 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- MHJAJDCZWVHCPF-UHFFFAOYSA-L dimagnesium phosphate Chemical compound [Mg+2].OP([O-])([O-])=O MHJAJDCZWVHCPF-UHFFFAOYSA-L 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000006057 Non-nutritive feed additive Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000007850 degeneration Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 230000009102 absorption Effects 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000011469 building brick Substances 0.000 description 1
- 125000003636 chemical group Chemical group 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
Abstract
The invention provides a method for evaluating durability of a cable and a protective sleeve in a hygrothermal environment, comprising the following steps: (1) cutting out a cable with the length of 20 to 30 mm, and wrapping the cable with a protective sleeve, thus making a sample; (2) adding deionized water into a high pressure container, arranging the sample on a grid higher than the water level, controlling temperature in the container to be 95 to 125 DEG C, and controlling pressure in the container to be 0.10 to 0.20 MPa; (3) keeping the sample under high temperature and high pressure in the high pressure container for 40 to 60 hours, then taking out, and testing. The method can be used to test chemical reaction generated under a cable and protective sleeve hygrothermal environment, and check the matching stability of the cable and the protective sleeve, is convenient and efficient, an operator can operate without professional knowledge or special training, and instruments and environment are low in price and easy to get.
Description
Technical field
The invention belongs to field of cable technology, more particularly to a kind of cable and the endurance quality evaluation of protection sleeve pipe hygrothermal environment
Method and device.
Background technology
Hydrothermal aging detection is applied to may be in the product used in the environment of warm moist, and torrid areas is annual, middle latitude
The season that there is varying length in degree area in 1 year is exactly the environment of this warm moist.The purpose of test is inspection product to warm tide
The adaptability of wet environment.For plastic material, porous material or finished product etc., various different materials have to temperature with moisture
The physical reactions of different shape, effect produced by temperature be mostly plastically deformed product excess temperature or cold-starting it is bad etc., it is many
Can there are the situations such as surface moisture absorption, infiltration, condensation under humidity environment because of the capillary effect of holes in porous material, in low humidity ring
Can there is failure because of electrostatic charges accumulated effect induction product in border.Common moisture effect has：The forfeiture of physical strength, chemical property
Change, the degeneration of insulating materials performance, electrical short, metal material oxide etch, the forfeiture of plasticity, accelerate chemical reaction,
The phenomenons such as the degeneration of electronic building brick.Damp heat test is mainly used in instrument material, electrician, electronic product, household electrical appliance, vapour and rubs
Accessory, chemistry painting industry, Aerospace Products and other Related product parts store under the damp and hot environment of high/low temperature, transport,
To the adaptability of the environment of warm moist when using.
Hydrothermal aging test is a kind of manual simulation's environmental test, produces damp and hot atmosphere simulation using damp heat test equipment and produces
The hygrothermal environment that product are likely encountered during storage, transport and use, to examine the weatherability of product.Artificial acceleration is damp and hot old
Change typically using constant temperature and moisture test method and alternation humiture cyclic test method.Hydrothermal aging is tested except the damp and hot ring of manual simulation
Overseas also there is acceleration, test period is substantially shorter, and with the result of the test similar to Field Exposure.
China's hydrothermal aging experimental technique has material to be exposed in the hot-air environment of humidity, undergoes to be sent out after hyther
Raw performance change, by determining some performances or cosmetic variation before and after exposing under special environmental condition, evaluates the resistance to of material
Hygrothermal Properties.
Cable is made up of the conductor and outsourcing insulating protective layer of one or more mutually insulated, by electric power or information from one
It is transferred to the wire at another place.During use, Jing often will be with protecting sleeve pipe to use cooperatively for cable.Cable is in the mistake for using
Cheng Zhong, particularly under wet heat condition, often corrodes, and surface produces spot, causes the accidents such as short circuit, produces corrosion
Partly cause is：Flame retardant aid in webmaster under certain temperature and humidity conditions is separated out, and sticks to cable surface, water-soluble, water
Solution is generated sour (root).Filled with substantial amounts of magnesium hydroxide or aluminium hydroxide in cable, magnesium hydroxide/aluminium is insoluble in water, but readily soluble
In diluted acid, under the catalysis of phosphate radical etc., protect sleeve pipe absorption water can the dissolution from cable by magnesium hydroxide/aluminium, reaction life
Into the phosphate of white, so as to corrode cable.
Existing cable hygrothermal environment testing standard EN60068-2-78, test condition is 90 DEG C of temperature, and humidity 85% is surveyed
The examination time is 1000 hours, but the standard testing time is long, and main purpose is tensile strength change before and after comparative test
With the rate of change of elongation at break, and due to test condition it is gentleer, it is impossible to simulation test goes out cable and protecting pipe is damp and hot
The chemical reaction produced under environment, can not check the matching stability of cable and protecting pipe.
The content of the invention
An object of the present invention is to overcome the deficiencies in the prior art, there is provided a kind of cable is durable with sheath hygrothermal environment
Method of evaluating performance, the method can test out the chemical reaction produced under cable and protecting pipe hygrothermal environment, verify cable
With the matching stability of protecting pipe, and convenient and efficient, operator do not need professional knowledge or especially trains also operable, instrument
Equipment is cheap and easy to get.
The second object of the present invention is to provide a kind of device for evaluating cable and sheath hygrothermal environment endurance quality.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of cable and sheath hygrothermal environment endurance quality evaluation method, comprise the steps：
(1) cable of 20-30mm length is intercepted, with protection sleeve pipe parcel cable, sample is made, the two is in close contact；
(2) deionized water, sample is added to be placed on the grid higher than the water surface in high-pressure bottle, temperature is in control container
95-125 DEG C, container inner pressure is 0.10-0.20MPa；
(3) sample takes out test after high-pressure bottle high temperature high pressure maintains 40-60 hours.
Temperature and pressure refers to the environment temperature and pressure residing for sample in the container.
Container interior temperature wherein in step (2) is spent low, is difficult the matching stability for detecting cable and protecting pipe；Temperature
It is too high, the volatilization of the normal components such as auxiliary agent small molecular material in cable can be caused, make testing result inaccurate.In step (2)
Container in preferably 110 DEG C -120 DEG C of temperature, the preferred 0.15MPa of pressure.
Deionized water wherein in step (2) should meet following condition：When 23 DEG C, resistivity should be not less than 0.5M Ω .cm,
PH value should be between 6.0～7.2.
Before water is loaded, chamber inside each several part should be cleaned, cleaning directive/guide is shown in GB/T2423.50-
2012 Appendix B .3.
HTHP wherein in step (3) is held time too short, and test effect is bad, overlong time, extends test
Cycle, HTHP is held time preferably 48 hours.
Currently preferred technical scheme is：
(1) cable of 25mm length is intercepted, with protection sleeve pipe parcel cable, sample is made, the two is in close contact；
(2) deionized water, sample is added to be placed on the grid higher than the water surface in high-pressure bottle, temperature is in control container
110 DEG C -120 DEG C, container inner pressure is 0.15MPa；
(3) sample takes out after high-pressure bottle high temperature high pressure is maintained 48 hours；
(4) sample is placed in 2 hours in 60 DEG C of drying boxes after taking out；
(5) then record cable surface go out spot, go out the phenomenons such as frost, color change；
(6) it is excellent using the cable exocuticle in infrared spectrometer decay total reflection annex (FT I R-ATR) test sample
Position measurement cable and the matching stability of protecting pipe that first selection outward appearance is changed.
Cable of the present invention and sheath hygrothermal environment endurance quality evaluation method, can test out cable and protecting pipe is damp and hot
The chemical reaction produced under environment, verifies the matching stability of cable and protecting pipe, and convenient and efficient, and operator need not
Professional knowledge or especially training are also operable, and instrument and equipment is cheap and easy to get.
The test device of method of testing of the present invention is high-pressure bottle, and water is put in the high-pressure bottle, controls temperature and pressure,
Sample is placed in high-pressure bottle and is higher by the grid of the water surface, and a specific example of high-pressure bottle is pressure pan, including heating
Device, interior bucket, heater temperature-controlling system, safety valve, vent valve, pressure gauge, outer barrel, upper lid, fastening bolt, can control pressure pan
Temperature range is -150 DEG C of room temperature, and pressure limit, 0.10-0.20MPa, pressure pan is heated using temperature automatically controlled heater, peace
Full valve and vent valve control pressure are constant, built-in metal grid, for placing sample.
The parameter of high-pressure bottle of the present invention should meet following requirements：
A) temperature and relative humidities be given in evaluation method step (2) should be met, and is at least protected
Hold 168 hours uninterruptedly；
B) during testing, controlled temperature and humidity conditions should be able to be provided, and can be heated up according to the condition of regulation
And cooling；
C) vessel wall structure material should not cause the obvious corrosion of test specimen and reduce the quality of humidification water.
The high-pressure bottle can also be autoclave sterilizer.
Description of the drawings
Fig. 1 is the pressure pan schematic diagram of embodiment 1.
Fig. 2 is lid front view on the pressure pan of embodiment 1.
Fig. 3 is the pressure pan upper cover top view of embodiment 1.
Reference：1. the pressure gauge of 3. heater temperature-controlling system of bucket, 4. safety valve, 5. vent valve 6. in heater 2.
7. the fastening bolt of lid 9. in outer barrel 8..
Specific embodiment
Below by embodiment and combine accompanying drawing the invention will be further described, but it is not as a limitation of the invention.
Embodiment 1
The test device of method of testing of the present invention is pressure pan, including heater 1, interior bucket 2, heater temperature-controlling system 3, peace
Full valve 4, vent valve 5, pressure gauge 6, outer barrel 7, upper lid 8, fastening bolt 9, the temperature range that can control pressure pan is room temperature -150
DEG C, pressure limit 0.10-0.20MPa, pressure pan is using temperature automatically controlled heater heating, safety valve and vent valve control pressure
It is constant, interior bucket built-in metal grid, for placing sample.
Embodiment 2
The matching of certain equipment Co., Ltd is used cable and protecting pipe using the pressure pan of embodiment 1 and the inventive method
Stability is tested, and sample number into spectrum and test result are shown in Table 1.
The matching stability test result of the cable of table 1 and protecting pipe
The method of testing of embodiment 2 is as follows：
(1) sample prepares：Intercept the long cables of 25mm by number several, with corresponding protection sleeve pipe parcel, protection sleeve pipe around
Cable 2 is enclosed, and is tightened with 2～3 nylon cable ties；
(2) deionized water, sample is added all to be placed on the metal grill higher than the water surface in pressure pan, tank body assembling is close
Envelope, 120 DEG C of temperature in control tank, vapour pressure is 0.15MPa, and when temperature stabilization timing is started；
Close heater after (3) 48 hours, exhaust, open closure, take out sample, be placed in 60 DEG C of drying boxes 2 little
When；
(4) sample is taken out from drying box, nylon cable tie is cut off, launches protective case, check cable skin surface condition, clapped
According to；
(5) record cable surface to go out spot, go out frost, color change and strangle the phenomenons such as trace.
Taking the sample combination that result of the test is visible bloom and spot carries out infrared spectrum and elementary analysis, the results are shown in Table 2：
Infrared spectrum and elementary analysis result after the sample damp heat test of 2 embodiment of table 2
Analysis result shows bloom and spot main component is the phosphoric acid salts such as magnesium monohydrogen phosphate, sample segment detection acid amides
Class material (processing aid).
The auxiliary agents such as the fire retardant in certain temperature and humidity conditions lower jacket pipe are separated out, and stick to cable surface, water-soluble, water
Solution is generated sour (root).Filled with substantial amounts of magnesium hydroxide or aluminium hydroxide in cable, magnesium hydroxide/aluminium is insoluble in water, but readily soluble
In diluted acid, under the catalysis of phosphate radical, protect sleeve pipe absorption water can the dissolution from cable by magnesium hydroxide/aluminium, reaction generate
The phosphate of white, so as to corrode cable.
Embodiment 3
Choose 12 kinds of cables and 3 kinds of protecting pipes evaluate as described in Example 2 matching stability test, test temperature is
115 ± 5 DEG C, other conditions are constant, and coupon results are shown in Table 3：
The cable of 3 embodiment of table 3 and protecting pipe matching stability test result
Jing infrared detections, cable surface hickie or bloom composition are mainly magnesium monohydrogen phosphate and/or phosphalugel, part sample
Product examine goes out amide substance (processing aid).
Performance preferably cable K in the test, hickie it is serious have cable D, a cable G, deformation (Le trace) is serious
There are cable A, cable B, cable C, cable G, cable I, cable J and cable L.Protecting pipe O water absorption rates are big, heat endurance is poor, sheath
Pipe N made of soft, minimum to cable fault degree, protecting pipe M takes second place.Judge from the result of constituent analysis, the performance
The crosslinking degree of best cable K is higher.
Cable constituent analysis is shown in Table 4,
The cable constituent analysis of table 4
| Sample ID | Results of IR |
| Cable A | EVA, magnesium hydroxide, aluminium hydroxide |
| Cable B | EVA, magnesium hydroxide |
| Cable C | EVA, magnesium hydroxide, aluminium hydroxide |
| Cable D | EVA, magnesium hydroxide |
| Cable E | EVA, magnesium hydroxide, aluminium hydroxide |
| Cable F | EVA, magnesium hydroxide, aluminium hydroxide |
| Cable G | EVA, aluminium hydroxide |
| Cable H | Polyester terephthalate, magnesium hydroxide |
| Cable I | EVA, aluminium hydroxide |
| Cable J | EVA, aluminium hydroxide |
| Cable K | EVA, aluminium hydroxide |
| Cable L | EVA, magnesium hydroxide, aluminium hydroxide |
It can be seen that, after humid heat treatment, cable surface hickie or bloom composition mostly come from the reaction with protecting pipe.
In order to verify the accuracy of method of testing of the present invention, used cable D/ sheaths are extracted using producer from cable
Pipe M samples, at that time cable was because of corrosion short circuit, it is impossible to be continuing with, erodable section has hickie to produce, Jing infrared detections, hickie
Main component be magnesium monohydrogen phosphate.It can be seen that, the inventive method is capable of the matching stability of quick test cable/protecting pipe.
Comparative example 1
The sample of embodiment 2 and embodiment 3 is adopted into EN60068-2-78 standard testings, test condition is 90 DEG C of temperature,
Humidity 85%, the testing time is 1000 hours, and sample surfaces do not see change, cable and sheath before and after the test of Jing infrared detections
The composition difference of contact position is little.
The sample of embodiment 2 and embodiment 3 is carried out into alternation humiture cyclic test test using GB2423.34 standards,
Sample surfaces do not see change yet, and cable is little with the composition difference of sheath contact position before and after the test of Jing infrared detections.
Embodiment 4
Choose 6 kinds of cables and 7 kinds of protecting pipes evaluate as described in Example 2 matching stability test, coupon results are shown in Table
5：
The cable of 5 embodiment of table 4 and protecting pipe matching stability test result
Using infrared spectrum software comparing function, can be infrared with outer surface after the initial outer surface of comparative sample and match test
Spectrum, instrument calculates matching degree automatically, the change degree of the matching degree representative sample primary chemical group, can sensitiveer, standard
Really reflect the composition of cable insulation outer surface and the situation of change of microstructure, matching degree is higher, illustrates cable insulation
Change it is less, corrosion resistance, heat oxygen aging resistance, wet-hot aging performance are better.
Because of examination of infrared spectrum scope less (mm levels), therefore in test, outward appearance must be selected to detect where changing, knot
Fruit takes matching degree minimum.
The cable of 6 embodiment of table 4 judges with protective case wet-hot aging performance test infrared spectrum matching degree
Such as outward appearance and infrared spectrum matching degree are evaluated according to 5 points of systems, assessment rules are shown in Table 7, then the score of each cable
It is shown in Table 8.
The cable of table 7 and the test ocular estimate of protective case wet-hot aging performance and infrared spectrum matching degree marking rule
The cable of table 8 and the test ocular estimate of protective case wet-hot aging performance and infrared spectrum matching degree average mark
From embodiment 4 as can be seen that the cable of the present invention can be fast with protection sleeve pipe hygrothermal environment endurance quality evaluation method
The wet and heat ageing resistant performance of cable or protective case is evaluated fastly；Microcosmic is evaluated using visual examination after test and infrared spectrum etc.
Structure change, grades to cable, is the effective ways for controlling cable Long-Term Properties.
Although the present invention and its advantage is described in detail with reference to specifically embodiment it should be appreciated that do not surpassing
Various changes can be carried out in the case of going out the spirit and scope of the present invention defined by the appended claims, is substituted and is become
Change.And, scope of the present application is not limited only to the specific embodiment of the device described by specification, method and steps.This area
Interior those of ordinary skill will readily appreciate that from the disclosure, according to the present invention can using perform with it is said
The essentially identical function of corresponding embodiment or obtain dress essentially identical with it result, existing and that future is to be developed
Put, method and steps.Therefore, appended claim is intended to include such device, method and steps in the range of them.
Claims (8)
1. a kind of cable with protection sleeve pipe hygrothermal environment endurance quality evaluation method, it is characterised in that comprise the steps：
(1) cable of 20-30mm length is intercepted, with protection sleeve pipe parcel cable, sample is made；
(2) deionized water, sample is added to be placed on the grid higher than the water surface in high-pressure bottle, temperature is 95-125 in control container
DEG C, container inner pressure is 0.10-0.20MPa；
(3) sample takes out test after high-pressure bottle high temperature high pressure maintains 40-60 hours.
2. cable according to claim 1 with protection sleeve pipe hygrothermal environment endurance quality evaluation method, it is characterised in that step
Suddenly temperature is 110 DEG C -120 DEG C in the container in (2).
3. cable according to claim 1 with protection sleeve pipe hygrothermal environment endurance quality evaluation method, it is characterised in that step
Suddenly the container inner pressure in (2) is 0.15MPa.
4. cable according to claim 1 with protection sleeve pipe hygrothermal environment endurance quality evaluation method, it is characterised in that step
Suddenly 23 DEG C of resistivity of deionized water are not less than 0.5M Ω .cm in (2), and pH value is between 6.0～7.2.
5. cable according to claim 1 with protection sleeve pipe hygrothermal environment endurance quality evaluation method, it is characterised in that step
Suddenly (3) high temperature high pressure was held time as 48 hours.
6. cable according to claim 1 with protection sleeve pipe hygrothermal environment endurance quality evaluation method, it is characterised in that bag
Include following steps：
(1) cable of 25mm length is intercepted, with protection sleeve pipe parcel cable, sample is made, the two is in close contact；
(2) add deionized water, sample to be placed on the grid higher than the water surface in high-pressure bottle, in control container temperature be 110 DEG C-
120 DEG C, container inner pressure is 0.15MPa；
(3) sample takes out after high-pressure bottle high temperature high pressure is maintained 48 hours；
(4) sample is placed in 2 hours in 60 DEG C of drying boxes after taking out；
(5) then record cable surface phenomenon；
(6) using the cable exocuticle in infrared spectrometer decay total reflection annex test sample, test cable and protecting pipe
Matching stability.
7. cable according to claim 1 with protection sleeve pipe hygrothermal environment endurance quality evaluation method implementation, its
It is characterised by, described device is high-pressure bottle.
8. implementation according to claim 7, it is characterised in that the high-pressure bottle is pressure pan, including heater,
Interior bucket, heater temperature-controlling system, safety valve, vent valve, pressure gauge, outer barrel, upper lid, fastening bolt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610335074X | 2016-05-19 | ||
| CN201610335074 | 2016-05-19 |
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| Publication Number | Publication Date |
|---|---|
| CN106644908A true CN106644908A (en) | 2017-05-10 |
| CN106644908B CN106644908B (en) | 2021-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611075661.6A Active CN106644908B (en) | 2016-05-19 | 2016-11-30 | Method and device for evaluating durability of cable and protective sleeve in damp and hot environment |
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| CN (1) | CN106644908B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290272A (en) * | 2017-08-03 | 2017-10-24 | 合肥祥国电子商务有限公司 | A kind of ceramic process gift durability testing system |
| CN114184488A (en) * | 2021-12-01 | 2022-03-15 | 中海石油(中国)有限公司 | Method for rapidly testing service life of optical cable of oil well |
| CN114324840A (en) * | 2021-12-13 | 2022-04-12 | 天津六0九电缆有限公司 | Test method for rapidly judging cable material frosting |
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| CN114324840A (en) * | 2021-12-13 | 2022-04-12 | 天津六0九电缆有限公司 | Test method for rapidly judging cable material frosting |
| CN114324840B (en) * | 2021-12-13 | 2024-01-23 | 天津六0九电缆有限公司 | Test method for rapidly judging cable material frosting |
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