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GB 13398-2008: Insulating hollow tubes and foam-filled tubes and solid rods for live working
Status: Valid GB 13398: Evolution and historical versions
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Insulating hollow tubes and foam-filled tubes and solid rods for live working
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GB 13398-2008
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Insulating hollow tubes and foam-filled tubes and solid rods for live working
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General technich conditions of lnsulating poles for live working
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PDF similar to GB 13398-2008
Basic data | Standard ID | GB 13398-2008 (GB13398-2008) | | Description (Translated English) | Insulating hollow tubes and foam-filled tubes and solid rods for live working | | Sector / Industry | National Standard | | Classification of Chinese Standard | K47 | | Classification of International Standard | 13.260; 29.035 | | Word Count Estimation | 23,281 | | Date of Issue | 2008-12-30 | | Date of Implementation | 2010-02-01 | | Older Standard (superseded by this standard) | GB 13398-2003 | | Quoted Standard | GB/T 1033.1; GB/T 1034; GB/T 1409; GB/T 16927.1 | | Adopted Standard | IEC 60855-1985, MOD; IEC 61235-1993, MOD | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 25 of 2008 (total 138) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Chinese standard specifies the live working tube, rod type insulation material classification, technical requirements, test methods, inspection rules, marking and packaging. This standard applies to the nominal voltage above 1kV and power systems, tools and equipment for the production of live working hollow insulating tube, foam-filled insulating tubes, solid rods (Pipes, telescopic tube is not included in this standard), these insulating material is made of synthetic material. | GB 13398-2008: Insulating hollow tubes and foam-filled tubes and solid rods for live working---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Insulating hollow tubes and foam-filled tubes and solid rods for live working
ICS 13.260; 29.035
K47
National Standards of People's Republic of China
Replacing GB 13398-2003
Live Working with hollow pipe insulation, foam padding
Insulating tubes and solid insulation rod
(IEC 60855. 1985, Insulatingfoam-filedtubesandsolidrods
forliveworking, MOD; IEC 61235.1993, Liveworking-
Insulatingholowtubesforelectricalpurposes, MOD)
Posted 2008-12-30 2010-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
1 Scope 1
2 Normative references 1
3 Category 1
4 technical requirements
Test Method 5 5
6 Inspection rules 8
7 signs, packaging 9
Appendix A (normative) before moisture and damp insulation test 10
Appendix B (normative) Test Wet Insulation 13
Annex C (normative) Mechanical tests 14
Annex D (normative) dielectric strength test at 17
Appendix E (normative) 18 glyph
Annex F (informative) insulation pipes, rods about 19 parameters
Foreword
4.2 This standard except for the provisions recommended, the rest are technical content of the mandatory provisions.
This revised standard adopts IEC 60855. 1985 "live working filled with an insulating tubes and solid foam insulation stick" and IEC 61235.1993
"Live Working with hollow pipe insulation."
This standard and IEC 60855. 1985 and IEC 61235.1993 compared to the main technical differences exist as follows.
--- Of hollow tubes, foam-filled tube more complete specifications, IEC and less quantity, according to the status of the specifications of the supplement;
--- According to the status of the production of the insulating material, the bending and torsional resistance increased slightly, more stringent requirements;
--- Chapter is structured according to GB/T 1.1 requirements and IEC standards differ slightly.
This standard replaces GB 13398-2003 "Live Working with hollow pipe insulation, foam-filled tubes and solid insulation insulation rod."
This standard compared with GB 13398-2003, amended reads as follows.
--- Removed IEC foreword;
--- Added Appendix E glyph;
--- According to the product current production levels, to improve the physical properties of the material parameters, increasing the mechanical strength of the axial crushing experiments related
Technical Parameters.
The Standard Appendix A, Appendix B, Appendix C, Appendix D, Appendix E is a normative appendix, Appendix F for the informative appendix.
The standard proposed by China Electricity Council.
This standard by the National Standardization Technical Committee for live working (SAC/TC36) centralized.
This standard is mainly drafted by. State Grid Wuhan High Voltage Research Institute.
Involved in the drafting of the standard units. North China Electric Power Research Institute Co., Ltd., State Grid Wuhan High Voltage Research Institute, North China Power Grid Co.,
Shaanxi Qinchuan Electric Power Equipment Co., Ltd.
Drafters of this standard. Yi Hui, Pan Jingdong, Yang Fumin, Gongyan Xing, Hu Yi, Hao Xudong, Feng tide, Zhang Lihua, He Huiwen.
This standard published in February 1992, in January 2003 the first amendment, this is the second revision.
Live Working with hollow pipe insulation, foam padding
Insulating tubes and solid insulation rod
1 Scope
This standard specifies the live working tube, rod type insulation material classification, technical requirements, test methods, inspection rules, signs and packaging.
This standard applies to nominal voltage of 1kV and above the power system for the production of hollow insulating tube live working tools and equipment, bubble
Foam filled with an insulating tube, solid insulation rod (Pipes, telescoping tubes are not included in this standard), the insulating material is made of a synthetic material.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
1033.1 Non-plastic foam density measurement GB/T Part 1. Immersion method, liquid pyknometer method and titration method
(GB/T 1033.1-2008, ISO 1183-1.2004, IDT)
GB/T 1034 Plastics Determination of water absorption (GB/T 1034-2008, ISO 62.2008, IDT)
GB/T 1409 Measurement of electrical insulating materials at power, audio, high-frequency (including meter wavelengths included) of the permittivity and dielectric loss factor
The recommended method (GB/T 1409-2006, IEC 60250. 1969, MOD)
GB/T 16927.1 High-voltage test techniques Part 1. General test requirements (GB/T 16927.1-1997, eqv IEC 60060-
1. 1989)
Category 3
Depending on the material and shape of its production, an insulating tube, bar can be divided into three categories (Table 1).
Table 1 insulated pipes, rods Categories
classification name
Standard OD Series /
mm
Ⅰ solid rod 10,16,24,30
Ⅱ hollow tube 18,20,22,24,26,28,30,32,36,40,44,50,60,70
Ⅲ foam-filled tube 18,20,22,24,26,28,30,32,36,40,44,50,60,70
NOTE. filled with an insulating tube having a nominal outside diameter of the hollow tube series.
4. Technical Requirements
4.1 Material
Insulating tube, rod should be made of synthetic material. Synthetic materials with inorganic or synthetic strengthen its exterior color is determined by the user.
A density of not less than 1.75g / cm3, water absorption is not more than 0.15%, 50Hz dielectric loss tangent of not more than 0.01.
Filling foam insulation should be adhered to the inner wall. During the test specified in this standard, in addition to the destruction caused by damaged parts, foam or
The adhesive should not damage the insulating tube, bar the permeation tests shall meet the requirements.
4.2 Nominal dimensions
All the measured diameter shall be in accordance with Table 2 and Table 3 specified tolerances.
Table 2 solid bar nominal dimensions and tolerances
Nominal OD /
mm
Outside diameter tolerance /
mm
10,16,24,30 ± 0.4
Table 3 hollow tube, filling tube nominal dimensions and tolerances
Nominal OD /
mm
Outside diameter tolerance /
mm
Minimum wall thickness /
mm
Wall thickness tolerance /
mm
Wall thickness < 5mm wall thickness> 5mm
18,20,22,24,26,28,30 ± 0.4 1.5 ± 0.2 -
32,36,40,44 ± 0.5
50,60,70 ± 0.8
2.5 ± 0.3 ± 0.4
4.3 Electrical Characteristics
Electrical characteristics 4.3.1 damp and moisture before after
For the manufacture of insulated tools insulated pipe, rod should be 300mm long test of 1min power frequency voltage withstand test, including test and dry by
Tide after the test.
In the test voltage 100kV power frequency leakage current to comply with Table 4.
Table 4 test frequency voltage withstand test and leakage current allowable value
Nominal OD /
mm
Test between the electrodes
distance/
mm
1min power frequency voltage withstand test /
kV (r.m.s)
Leakage current /
μA
Dry wet test test I1 I2
Solid rod
Pipe
30 or less
30 and below
32 to 70
Note. The test records the maximum phase angle difference φ1 currents I1, I2 and between current and voltage, φ2, requirements φ1, φ2 > 50 ° (tube) or 40 ° (rod).
4.3.2 wet insulation
For the manufacture of insulated tools insulated pipe, rod should be 1200mm long test sample 1h rain test. In the 100kV power frequency test
Voltage should meet the non-slip flash, no spark or breakdown, no visible surface traces of corrosion leakage, no perceptible temperature rise requirements.
4.3.3 Insulation resistance properties
For the manufacture of insulated tools insulated pipe, rod should be able to withstand between two electrodes separated by 300mm of 1min power frequency voltage test. Test
In the 100kV power frequency voltage flash non-slip, no spark or breakdown, no visible surface traces of corrosion leakage, no detectable temperature rise requirements.
4.4 Mechanical properties
For the manufacture of insulated tools insulated pipe, rod should have a certain mechanical bending and torsional characteristics and resistance to radial compression, and axial compression
Resistance to mechanical aging properties.
4.4.1 flexural properties
Tube and the outer diameter of the rod /
mm
Distance between supports /
Fd /
mm
Fr /
Sample length /
Solid rod
10 0.5 270,205,402
16 0.5 13,501,527,002
24 2.5 1.0 1750153500
30 2.5 1.5 2250404500
Pipe
18 0.7 500,121,000 2.5
20 0.7 550,121,100 2.5
22 0.7 600,121,200 2.5
24 1.1 650,141,300 2.5
26 1.1 775,141,550 2.5
28 1.1 875,141,750 2.5
30 2.5 1.1 1000142000
32 2.5 1.5 1100252200
36 2.5 1.5 1300252600
40 2.5 2.0 1750263500
44 2.5 2.0 2200284400
50 2.5 2.0 3500307000
60 2.5 2.0 60,002,712,000
70 2.5 2.0 100,002,720,000
4.4.2 torsional characteristics
All kinds of insulation tube, bar table should meet the test of Cd 6, αd, Cr values.
Tube and the outer diameter of the rod /
mm
Cd /
N · m
αd /
(°)
Cr /
N · m
Solid rod
10 4.5 1509
16 13.5 18 027
3070150140
Table 6 (Continued)
Tube and the outer diameter of the rod /
mm
Cd /
N · m
αd /
(°)
Cr /
N · m
Pipe
18 18.5 30 37
22 22.5 2845
26 27.5 2655
3660 37.5 120
4410035200
5012016240
6032012640
7048010960
NOTE. Cd initial torque, Cr is the rated torque, αd deflection angle.
4.4.3 pipe radial pressing characteristics
Pipe insulation test (including filling tube) should meet Fd Table 7, Fr value.
Nominal outside diameter of the pipe /
mm
Fd /
Fr /
3615003000
4021504300
4425005000
5034506900
6041008200
7047509500
4.4.4 Characteristics of axial pressure pipe
Various pipe should meet the λ-Ψ value specified in Table 8. For the production of live working tools and equipment rod, its λ value should not be large
120.
Table 8 λ-Ψ value characteristic axial pressure pipe
Slenderness ratio λ 40 60 80 100 120
Pressure reduction coefficient Ψ 0.98 0.59 0.33 0.2 0.143
NOTE. λ --- slenderness ratio;
Ψ --- Pressure reduction factor;
--- L of the pipe length, unit. mm;
4.4.5 mechanical aging characteristics
When all kinds of insulation tube, bar the test after 4000 bending cycles, but not by visual inspection by means of amplifying means, the test should be no any
It traces of damage, nor shall any permanent deformation.
After a 4000 bending cycle test, the test should also pass these tests before the insulation damp and wet after.
Before moisture shall not exceed the measured current I'1 Table 4 I1, limits, damp measured current I2 should not exceed the limits in Table 4 I2
value.
5 Test methods
5.1 General Requirements
Manufacturers to get their products approved, should provide.
3m long tube 15, 2.5m long rods 10, the samples kept by the purchaser or the relevant test units.
After all samples visual inspection and dimensional inspection, the samples were divided into three groups, each individual specimen different tests (each
Test three specimens), as shown in Table 9.
Table 9 required test tube, rod length, the number of
Test Content Terms
Rods
1 Group 2 Group 3 Group 1 Group 2 Group 3 Group
Visual inspection and dimensional inspection 4.2 3m3 3m4 root root root 3m3 2.5m3 2.5m3 root root root 2.53m4
Dye penetration test 4.1 - - 0.1m5 root - - 0.1m5 Root
Electrical tests 4.3.1 0.3m3 root - - 0.3m3 root - -
Rain test 4.3.2 - 1.2m3 Root - 1.2m3 Root -
Bending test 4.4.1 2.5m3 root - - 2m3 root - -
Torque Tester 4.4.2 - 1.2m3 root - - 1.2m3 Root -
Radial compression test 4.4.3 - 0.3m3 root a - - - -
Axial pressure test 4.4.4
λ = 40,60
Each one
λ = 120
λ = 80,100
Each one
- - -
Mechanical aging tests 4.4.5 - - 2.5m3 root - - 2m3 Root
Reference test pieces - - 1m2 root b - - 1m2 the root of b -
According to a 5.9 each sample length is three times the nominal diameter.
b This two specimens without any test, only as reference test pieces.
In the test group should be taken (3 or 4) in the upper section of each sample, each test specimen in this paragraph. If any of
A sample can not pass the test are listed in Table 9, the product shall be rejected.
Only through tests specified in Table 9 products available indicating compliance with this standard.
Physical performance test 5.1.1 --- density test material
According to GB/T 1033.1 the A method.
The physical properties of materials 5.1.2 Test --- water absorption test
Conducted in accordance with GB/T 1034's.
5.1.3 Electrical Performance Test materials --- 50H z dielectric loss tangent test
Conducted in accordance with GB/T 1409's.
5.2 Visual inspection and dimensional inspection
5.2.1 Visual inspection
With the naked eye (hand touch) from the appearance inspection, inspection test is smooth, with or without bubbles, wrinkles or split, between the glass fiber and resin adhesive
It is intact.
5.2.2 Dimensional inspection
Each sample measured with ruler size Meets Tables 2 and 3 of the regulations.
5.3 Penetration Test
Interception 100mm specimens from the test group listed in Table 8, 5, which is completely immersed in 0.1% by volume of the container magenta and distilled water solution
And then the container is placed above a vacuum chamber, and evacuated to less than 6500Pa (about 50t) vacuum. 1h specimen kept in the dye solution,
Then lift the vacuum and remove the specimen. To avoid cutting magenta diffusion from the specimen ends, before cutting the specimen shall be dried in the atmosphere
24h.
After drying, the specimen from each end cut off 10mm.
Such obtain new specimens cut longitudinally, specimen section shall not have any magenta dye penetration.
5.4 Before wet and damp insulation test
5.4.1 General test conditions
Before the test, each sample should trifluorotrichloroethane (CF2ClCFCl2) solution (or ethanol) wipe, and dried in air
15min.
Interception 300mm from the first set of the insulating tube (bar), respectively, sample 3 test. When sampling, you should avoid using end 100mm
Within the insulating material.
Before the test, each test should end with a conductive adhesive tape (or aluminum foil) covering, adjusting humidity of the specimen when exposed to moisture, it must be electrically conductive adhesive
Band (or aluminum foil) removed.
Test arrangement shown in Figure A. 1 (see Appendix A). Measuring equipment from high voltage electrode of not less than 2m, measuring leads, shunts and any
Protective gap election should ground the shield. Samples shall be placed on the ground from a height of about 1m insulating support, according to GB/T 16927.1
Provisions between the two electrodes frequency voltage 100kV (rms), and measuring the current flowing through the test (direct protective earth ground terminal electrode).
Rms current to a predetermined phase difference between the current and voltage measurement method is as follows.
Current (earth) and passed through a known impedance.
Voltage (line side) through the appropriate divider.
Test, test each part of flashover and breakdown should not occur.
5.4.2 Test damp ago
Previously placed in the test atmosphere in the test area at least 24h. Between two electrodes applied to power-frequency test voltage 100kV (rms)
1min, measuring I1, the phase angle difference between the record and the maximum current φ1 between current and voltage, I1 various types of insulation material of the test sample, φ1 value shall meet Table 4
The allowable value.
5.4.3 After moisture test
Will have passed before the moisture test sample placed in the chamber (a temperature of 23 ℃, relative humidity of 93%), the 168h, the test should remain
Maintained at 93% relative humidity of the atmosphere and returns to the atmosphere temperature of the test area under test, with a dry cloth gently wipe after the test,
Under the same conditions and measurement I1 and I2 measurement φ1 and φ2.
In both test (moisture and damp before the test), the test sample relative to the earth's position should be the same, high-pressure side should be the same.
I2 and φ2 values of various types of test shall meet the values specified in Table 4.
5.5 Insulation test wet (rain test)
5.5.1 General test conditions
Before the test, each sample should trifluorotrichloroethane (CF2ClCFCl2) solution (or ethanol) wipe, dried in air for 15min.
Interception 1.2m from the second group of the insulating tube (bar), respectively, sample 3 test. When sampling, you should avoid using end 100mm
Within the insulating material.
Diameter 3mm ~ 4mm aluminum wire wound on the insulating tube 3 to 4 laps for the test electrode, the distance between the poles of 1m, at both ends of the test is not
Get coverage.
Test should be in place between the water temperature and ambient temperature at 18 ℃ ~ 28 ℃.
Test arrangement shown in Figure B. 1 and B. Fig. The test should be tilted 45 °, the test electrode is applied between the processing frequency test voltage 100kV (effective
Value), the pressing duration 1h.
5.5.2 rain conditions
Humidity test according to GB/T 16927.1 requirements.
--- Average rain rate. 1.0mm/min ~ 1.5mm/min.
--- Collect water resistivity is calibrated to 20 ℃. 100Ω · m ± 5Ω · m.
However, before the pressure is not pre-leaching test, but the water pressure and at the same time.
5.6 dielectric strength test
Insulation test insulating tube or rod separated by applying an AC power frequency voltage 100kV (rms)) 1min between the electrodes of 300mm.
Test arrangement as shown in Appendix D.
5.7 bending test
This trial is the first group from the insulating tube (rod) taken three test conducted. The 2.5m (or 2m) of the test sample placed two wheel configuration
On a bracket (see Appendix C), various types of sample corresponding axis distance between the two rollers shown in Figure C. 1.
In the span of the test center put 50mm wide belt or ribbon, a vertical force exerted on the belt F.
At a rate of (200 ± 5) N/s is applied gradually. Respectively, in a load of 1/3Fd, 2/3Fd and Fd measured after maintaining its flexible 30s
Then, gradually decrease the power and remove the force after 1min, measuring residual deflection, which should not exceed the value of the measured applied force Fd scratch
Of 6%.
Over 15%.
Found by the deflection force Fd generated, and previous test results should be compared.
Under the same conditions as above, urging gradually increased Fr, then maintaining the value 30s, there should be no damage to the phenomenon. Continue urging, has been
Damage to the test date, and record the actual destruction of the test load value.
5.8 torque test
This test is carried out on a second set of insulating tube (rod) taken 3 test. Each length of 1.2m.
1m length of the torque applied to the test sample (or between the chuck end) on. The torque is applied at a rate of (5 ± 2) N · m/s is gradually increased,
Until the torque value Cd so far. You should hear abnormal noise, you can not see the obvious flaws. Maintaining the initial torque value Cd 3000s
After the measured angular deviation should be less than the corresponding angle αd (the provisions of its value in Table 6).
Then, remove the torque measured after 1min residual offset angle should be less than 1%.
Then re-applied the above steps a gradually increasing torque until the rated torque Cr. Maintain 30s reached Cr values and should not damage the
trace.
Then continue to increase the torque until the sample destroyed, destroy the recording torque values.
5.9 Pipe radial compression test
This test is performed on the interception in the second group 3 test. The length of each of the test three times its nominal diameter.
Samples shall be placed between two parallel smooth rigid plates and squeeze them (see Appendix C Figure C.4). Length should be at least flat, etc.
In test length plus 20mm, the distance between the two plates to 2mm/min constant velocity decreases.
During the test, the force F shall be two special values recorded imposed.
a) F = Fd minimum linear first lost at F, the value corresponding to the power loss ΔF≥0.01Fd.
b) F = Fr test before 3min (displacement ≤6mm), the maximum value of F recorded, as well as throughout the test applied to the test sample
The force F (the force F is a function of time).
Measured Fd and Fr, should be greater than the specified in Table 7.
5.10 Axial pipe pressure test
5.11 mechanical aging tests
This test is carried out on the third group of the insulating tube (rod) in the test sample taken three.
This test is in accordance with the test conditions specified in 5.7, so that each sample subjected to 1000 bending cycles. Apart along the mid-point in the test
Table 5 is applied to a predetermined pressure Fd 4 directions of 90 °.
Loading and unloading time can be controlled between 0.5min ~ 1.0min. Each sample subjected to 1000 bending cycles in one direction
After the tube (rod) is rotated 90 °, according to Table 5 continued predetermined force Fd is applied, after a total of 4000 cycles.
Intercepted after 4000 bending cycles of the test sample length of each test two 0.3m, which should be able to withstand the test of the 4.3.1
Predetermined electrical test (moisture and damp before the test).
6 Inspection rules
6.1 Test Project
Various types of test items test provisions set forth in Table 10.
Table 10 various types of insulation tube, bar test items classified provisions
No. Test item Test basis Test Method
Inspection classification
Type test sampling test factory test
Insulating material physical and electrical properties 4.1 5.1.1,5.1.2,5.1.3 √ - -
2 visual inspection and dimensional inspection 4.2 5.2.1,5.2.2 √ √ √
3 dye penetration test 4.1 5.3 √ √ -
Around 4 damp insulation test 4.3.1 5.4 √ √ -
5 rain test 4.3.2 5.5 √ √ -
6 dielectric strength test 4.3.3 5.6 - - √
7 bending test 4.4.1 5.7 √ √ -
8 torque test 4.4.2 5.8 √ - -
9 squeeze test 4.4.4 5.10 √ - -
10 mechanical aging tests 4.4.5 5.11 √ - -
Note. "√" indicates the pilot project must be carried out, "-" means not tested.
6.2 Type tests
Manufacturer of technical requirements before styling product according to the standards prescribed in Chapter 4 of the type testing. Such as insulating tube, rod system
Material or manufacturing process changes that affect the performance of the product, or off-site production, you should re-type test. In the insulating tube,
By manufacturing and materials used in bars without any change in circumstances, should be conducted every five years to re-type test.
Test items according to type test 6.1 Table 10 specified test methods specified in Chapter 5, and perform. The test sample in 5.1 Table 9
Provisions extraction.
6.3 Sampling Test
Sampling should have been delivered in bulk insulating tube, bar performed. Test items for sampling according to 6.1 of the table 10 and the provisions of paragraph
Test methods specified in 5 chapters.
According to the buyer and the manufacturer's protocol, sampling test may include all types of test items in Table 6.1 of section 10 or prescribed type examination
Test project.
Sampling test sample batch delivered randomly selected two groups count 7 (insulating tube sample length 3m, insulation rod length test
To 2.5m).
For sampling test results, where the non-compliance with the technical requirements of Chapter 4 (either one), the buyer may reject.
6.4 Delivery Test
For all products manufactured by the inspection items shall be 6.1 of the table 10 and specified test methods specified in Chapter 5, by only
test.
A group of factory insulated pipe, bar, its mechanical properties should be sampling. In a number of products at random five test, in accordance with
The values in Table 5 requirements, and test methods 5.7 tested. The evacuation of the five test all passed the factory test machine, the recognition
For the batch of products through sampling. As the test sample, the sample can not reach any of the requirements in Table 5, the batch of products in the double sampling
(Pump 10), if all tests were passed factory mechanical testing, you can also consider using the product qualified factory mechanical testing; if double sampling
Mechanical tests when there are one or more of the test can not pass the test, then consider the product is substandard products.
7 signs, packaging
7.1 marks
Each factory insulated pipes, rods have been permanently clear signs (all the flags should not affect the product characteristics);
Sign (two triangles) (see Appendix E);
Insulating tube, bar the name and specifications;
Manufacturer's name;
Color-coded;
Date of manufacture.
7.2 Acceptance
7.2.1 Acceptance of this standard sampling test project.
7...
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