GB/T 5591.2-2002 Flexible composite materials for electrical insulation Part 2: Test methods

This part of GB/T 5591 specifies the requirements for test methods for flexible composite materials for electrical insulation. This part is applicable to the performance test of flexible composite materials for electrical insulation. GB/T 5591.2-2002 Flexible composite materials for electrical insulation Part 2: Test methods GB/T5591.2-2002 Standard download decompression password: www.bzxz.net

1C8. 29. 035. 01
National Standard of the People's Republic of China
GB/T 559T.2—2002
Replaces G/T5591.21983
Combinerl flexble materials for electrical insulation-Part 2.Methods of test
(EC 60626-2:1995, MOD)
2002-D5-21 issued
Shandong People's Republic of China
General Administration of Quality Supervision, Inspection and Quarantine
2003-01-01 implementation
GB/T 91% electrical insulating materials - Part 3 is divided into two parts: Part 1: Definitions and requirements: Part 2: Test methods, which is the common part of 5/T5391
CH/T5551.2—2002
This part modifies the use of IE6626-21935 electrical insulating materials - Part 2: Test methods 2 (Party document). This part is re-numbered according to 5:50626-2:1995. A comparison table of the numbering of chapters and clauses of 1E63526-2:1995 is provided in Appendix A.
The actual requirements of this part are tested. When adopting C.62-2:1995, some changes have been made to its clauses. The technical differences have been compiled into the text and marked with a single line at the edge of the clauses to which they refer. This technical volume is divided into the following sections:) The standard of [6C626-2:1995 Section 9 \ "Electrical strength" is changed to \ "breakdown voltage" because it only involves the breakdown voltage in the actual environment and does not include the relevant electrical wave capacity. h) The specific formulas for the applied voltage in this section 11.. are specified in 16062-2 and 1F:626.3, and it is difficult to cite them. For ease of use, the following modifications have been made to 6362%2.15 of this specification: "" uses decimal point instead of decimal point, "a)
b! In addition to the foreword and quotation of the national standard, the material requirement A is added to indicate the value of the material. This part is an alternative to GB/T 551.-1585. The main changes of this part compared with GB/T 5591.2-1585 are as follows: "General standard" and "current standard" are added. The name of the drug in the relevant chapters is modified. In addition to the provisions on the validity number of the test results, the provisions on the test range of the belt speed are modified. This part is published by the Chinese Electrical Industry Association. The main material standardization technical committee (SI1S/51) of this part was funded by the Lin Electrical Science and Technology Research Institute. The second shrinking material factory in Wenling was responsible for the drafting of this part. The seventh drafter of this part is Ma Linquan. This part was issued on January 20, 198, and this is the first revision: CB/T Part 5591.2-2002
G/551 is a part of the standard for flexible and flexible materials, which are composite materials made of two or more different types of natural materials. The components are sufficient to integrate thin and fibrous sheet materials, and the fiber sheet materials typically include but are not limited to: nonwoven fabrics, nonwoven fabrics (such as paper) and woven fabrics. Non-textiles may or may not be subjected to mechanical treatment, chemical treatment, hydraulic treatment or heat treatment to change their properties. Sheet-like materials may or may not be subjected to grease. This part of Section 55 does not include materials based on mica or short composite materials in which one of the components remains in a three-dimensional state. 1 Scope
Flexible composite materials for electrical insulation
Part 2: Test methods
This part of CB/T6591 specifies the requirements for test methods for flexible composite materials for electrical insulation. This part is used for performance tests of flexible composite materials for electrical insulation. 2 Normative references
G#/5591.2-2002
The provisions of the following documents are also referred to in GP/T5591 The references to this part of this standard become the clauses of this part. For the dated reference documents, all subsequent amendments (excluding errata) or revisions are not applicable to this part. However, the latest versions of these documents may be used for research purposes based on this part. For any referenced document without a date, the latest version applies to this part.
G3/T451.21989 Determination of the quantity of paper and board (eq1SO3e:1976) GB/T14CR.1-1999 Electrical strength test method for insulating materials under test conditions (eq1EC6323-1:1988) B/T11C26.41999 Guidelines for determining the heat resistance of electrical insulation materials Part 4: Chemical oven single chamber oven idt IEC $021h-4-1:1990)
3 Requirements for the test
Unless otherwise specified, the sample should be conditioned for 215 under (23 ± 2)°C and relative humidity <50 ± 6%). If the test is not carried out under the standard atmospheric conditions, the test should be carried out within 5 minutes after the sample is taken out of the standard atmosphere. 4 Thickness
4.1 Test equipment
4.1.1 Single-use T-meter ruler, for example, the surface of the measuring surface of 6mm~8mm should be within 0.001mr. The flatness of the upper and lower measuring surfaces should be within 0.003mm1. The inner thread should be 0.5m, and the scale should be divided into 5U grids, each grid is 0.01mm, and can be estimated to 0.(0%mm1. The test period and the [, 4.1. of the test sample should be 100Pu: 4.1.2 Static weight dial gauge: The flatness of its two ground and polished concentric circular measuring surfaces shall be within 0.01 mm, the parallelism shall be within 0.03 mm, the upper measuring surface shall be 6 mm-rm, and the lower measuring surface shall be larger than the upper measuring surface. The upper measuring surface shall be able to move along the axis perpendicular to the two measuring surfaces. The dial graduation shall be able to reach 0.002 m. The frame of the thickness gauge shall be flexible enough so that when a force of 15% is applied to the gauge seat and no fusion tank or pressure drop mandrel (measuring rod) is connected, the deformation of the frame caused by this will not cause the indicated value on the gauge to exceed C.5% mm. The force applied to the specimen shall be 10 kPa. 4.1.3 The calibration gauge used for marking the thickness position shall be accurate to within ±0.1 of the nominal size. The thickness indicated by the thickness gauge and the calibration gauge thickness shall be within 0.005.
Method: According to the maximum number of special structures and the area and strength of the village material, the maximum amount of the area and the strength of the material can be specified separately. 4.2 Test
According to the "receipt"
4.2.1 Width material and sheet material
G6:T 5591.2—2002
Complete delivery of wide material or sheet material cut by length: If the material is cut into a 2mm wide strip, the sample is rolled into a sheet.
4.2.2 Cut material (strip)
From the strip, cut 1m long.
4.3 Procedure
Under the condition that the sample does not change, the length of the sample shall be not less than 75m. The thickness of the material is reduced at nine points. All quilts (or overlaps) should not be included in the test area. 4.4 Results
Record the nine values ​​and take the value as the thickness of the material. E Quantitative (mass per unit area, standard weight) is used for electrical 1. If it is used, it should not be used. The material should be measured according to the method described in GB/T131.2-1989 and modified as follows: Omit T151.2-1989 Chapter 5 and Chapter 6 of the test should be carried out on 3 test pieces in "received condition"! The quality of the tile sample with an area less than 1 (rm) is determined to be accurate to 0.5. Take the value of the middle value as the result. The other two values ​​are reported. B. Tensile strength and elongation
6.1 Test equipment
can use a reverse loading test machine or a speed moving test machine. The test machine can be divided into a single Ao Village and a standard method for infants and infants.
6.2 Each sample is 5 pieces. The length of the sample should be 10mm when it is detected by the two heads of the test machine. When testing full-width materials, the test width is 5mm, of which 10 pieces are from the material and 10 pieces are from the material. When the test string contains a sample of a textile product, any of the cuts should not contain any root group line in the length. When receiving the sample of the delivery state and the test sample of the divided material, the maximum cumulative length is 3mm.3 Test procedure for non-folded specimens
Place the specimen on the testing machine and apply the load until the full load reaches the minimum tensile strength of the specimen. The time is 60 10 seconds and then continue to load the specimen. Record the load. If necessary, the test result should be recorded.
The specimen should be cut into the chuck or chuck. When the required degree of contact is determined, the joint should be tested at the middle of the two joints. The material should be selected and the special method should be used to prevent the sample from breaking. 6.4 Test procedure for folded specimens
When the test specimen is stretched by hand, the fold mark should be aligned with the long side or corner of the specimen. Then, the long side of the specimen is tightly packed with the guide block as shown in Figure 1 and laid flat and sent along the length direction of the test frame in accordance with the detailed method. After the folding, the bottom is opened into a sample. Then test according to the provisions of 6.3. 6.5 Tensile strength of young fruit
Take the values ​​of 5 breaking loads to calculate the tensile strength of the material as the test result, expressed as /11mm width. The number of fractures
and the three fracture length ratios are used as the test result. The test result is expressed as the divisibility ratio of the sample length between the two tools. 2
7 Delamination
GR/T5591.22U02
When carrying out the tensile test, it should be determined whether the specimen after folding according to the provisions of 6.4 has delamination or other effects. 8 Continuous resistancebzxZ.net
81 Equipment
Use a tearing tool (see Figure 2), which is installed on the test machine in accordance with 6.1. The tearing tool is a half-beam made of steel plate (A). The two ends of the beam are fixed on the two ends of the tube frame: the thin metal frame of the tube frame is fixed on the lower fixture of the tensile testing machine so that the center line of the tearing tool is aligned with the center line of the upper and lower beams: the horizontal damage beam should be folded, and two beams should be provided for materials with different unit thickness ranges: one beam is (1.25 ± 11.0) mm thick. The other is (2.5 ± 0.5) mm thick. The width of the two sides of the V-notch is (15L1)°. The cross-sections on both sides of the V-notch are mushroom-shaped and should be smooth. 8.7 Specimens
Prepare ~ specimens for each, and the dimensions of the four specimens are 250 mm long and 15 mm to 25 mm wide. 9 of the specimens were parallel to the weave direction of the material. The results of the longitudinal (M) test were used as the tear resistance test. The other 9 specimens were parallel to the longitudinal direction of the material. The results of the transverse (C1)) specimens were used as the tear resistance test. All test beams were conditioned according to the requirements of Chapter 3.3. Install the appropriate length of the beams on the frame of the fire machine. 1.2 mm thick beams are used for materials with a length of C.75 mm or less, and 2.5 mm thick beams are used for materials with a length of less than C.75 mm. Fix the tear clamp on the lower tool of the tensile testing machine (see the front) so that its vertical center line is consistent with the working center line of the testing machine. The center line of the lower tool is located on both sides of the V-shaped notch. If necessary, the tear tip can be on the test product. At this time, a new tensile tester is needed to improve its quality. Adjust the lower tool of the testing machine so that the lower side of the upper tool is about 1 SCmm from the beam. Let the test piece pass through the bottom of the beam and then place the two ends of the specimen in a fixed upper tool. During this operation, try to lift the relaxed specimen as much as possible, but do not apply any force to the specimen. Initial stage of the test: Increase the load on the specimen as much as possible to minimize the abnormal deformation caused by the chronic effect of the flash. Continue to increase the load so that a new crack begins within 6s~1>:, record this load in N, 8.4 Results: Report the median value of each force direction of the material in V, and record the thickness of the beam used, the loading rate, and the shape and thickness of the specimen. 9 The area affected by heat is about Fire 100m\ test Y, in the supply and demand parties agreed or according to the single material specification pool specified in the group, so that the total load of 10~11mi heat, there is a discussion. The result should be in accordance with the (B/11626.4.-1999 requirements of the oven. No condensation, stratification or other adverse effects will occur in the test.
10 Support
10.1 Equipment
The equipment shown in Figure 3 and Figure 4 consists of the following parts:
) A smooth stainless steel support platform with a width of (3.>m in the center. Compared with the non-central support platform, the upper diameter of the support platform is 3. The medical angle of the mountain: the surface of the support platform and the center grid fillet should be smooth (center line value 0.25u*-1.0m)
GB/T 5591.22002
, due to the large impact of the sliding on the test station, an appropriate tolerance must be set. ) A flat metal pressure plate, which is installed in such a way that it can be inserted symmetrically into the center of the supporting platform and mechanically controlled to be inserted at a speed of 25mm/min~5nmm/min, the thickness of the pressure beam is (±0.5)mm, and the insertion depth is not less than 1om. Its length is longer than the maximum length of the specimen, and its end must be a surface section, ) A load sensor connected to the beam or platform cabinet. When a specimen is placed symmetrically on the book mouth, this sensor can respond to the specimen's high frequency resistance to the pressure insertion. The output of the load sensor should be recorded directly on a meter or recording paper. The appropriate range is (0~.0.1)N, (0~0 .5)N and (±-5)N. This test can be carried out on a conventional tensile testing machine, which only needs to be modified to apply pressure. 02 Specimens
5 Cut 10 specimens of 200mm×[0mm] from the material, of which 5 are cut from the longitudinal direction (MD) of the material and the other 3 are cut from the transverse direction (TD) of the material. Within the specified load range, for materials with higher values, shorter specimens but not less than 100)m1×1n may be used:
The shorter dimension on the specimen is the dimension that is used during the test, which is the test length, because the specimen is stretched in the same direction during the test. It should be ensured that the test piece is flat and free of creases and indentations. 10.3 Test Length
The specimen is conditioned at (23±2)° for 1h and then tested at the following length. Note: The general conditioning time is specified in Chapter 10.4 Method
The thickness of the specimen is measured using an instrument that complies with the provisions of Section 4. The specimen is placed symmetrically on the support platform. The specimen is parallel to the base and its two sides are placed equally on the same plane. The driving force is applied to overcome the resistance of the specimen and insert it into the test piece and the maximum resistance is recorded. The material with asymmetrical structure. Which side of the material is bent inwards shall be specified in the relevant material specification. 10.5 The result is expressed in N. If a light specimen has to be used, the specimen should be changed to a small length of 250 mm. The average value of 5 specimens is taken as the stiffness in the corresponding direction: The theoretical average thickness of each material is positively correlated with the average thickness of the sample. Therefore, the variation of the average thickness between the individual specimens will have a significant effect on the measured stiffness values ​​of single-layer and composite materials. The test shows that if the thickness of the test material does not vary greatly, satisfactory repeatability and reproducibility can be obtained if the measured stiffness is corrected on the basis of the cubic relationship. 11 Breakdown voltage
Test shall be carried out in accordance with CB/T1408.1-1999. 11.1 Equipment
11.1.1 Requirements for test equipment
Test equipment shall comply with the requirements of GB/T1408.1-1999. 11.1.2 Electrodes
For sheet materials, 25mm/75rm electrodes shall be used in accordance with GB/1408.1-1999. For materials (strips), 6m electrodes shall be used in accordance with the provisions of GB/T1408.1-1999. Electrodes shall be parallel to each other without any defects. 11. 1. 3 Folding device
See Figure 5 and Figure 6,
11.2 Test specimen and number of tests
For sheet materials, the minimum size of the test specimen shall be at least 250×253m, and the size of the finished sample shall be sufficient to accommodate the internal rate of the electric charge. ×1 Test specimens with a thickness of 0.5mm or less shall be tested both unfolded and folded. The test specimens shall be tested along the folding line in the longitudinal direction, and five tests shall be conducted along the folding line, and three tests shall be conducted in the folding area. For tests with a thickness of more than .5mm, it is recommended to conduct five unfolded tests. For the cut materials (strips), the test specimens shall be 1. nm, pet 25mm1, test 5 times, and can be repeated on the same sample. : When the reduction agent is less than mm, appropriate electric cutting should be carried out to avoid scratching. 11-3 Procedure
11.31 New fold
Bend the sample by hand at a distance of about 4 degrees from the edge of the sample and parallel to the pool. Note: When using the folding test finger, use the three-pointer position to drag the sample. The sample should be as wide as possible. Then, pull it out of the sample by hand 90 degrees at a time, and then bend it back. Fold the sample tightly and roll it along the guide of the folding assembly as shown in Figure 6. Then, fold the sample by hand 30 degrees and send it to the folding assembly. At this point, all four parts of the sample have been subjected to the action of folding: unfold the sample and conduct a reverse test according to the provisions of 11.3.2. The number of tests shall be in accordance with the provisions of 11.2: 11.3.2 Test
Test details shall be processed according to the requirements of Chapter 3 and then tested: Unless otherwise specified in the individual material specifications, apply electricity according to the provisions of 10.1 in GBT14C.1-10. When the maximum value of 5mm is not enough to compress the folded sample, pressure should be applied, the minimum of which should be just enough to flatten the sample: The breakdown judgment standard shall be in accordance with the provisions of GB/1418.1-1S59. Take the median value as the test result. The unit is kV and the unit is millimeter. Figure 1 Folding of sample packing GB/T 5591.2-2002 Detailed information 4 Edge peak avoidance fixture Figure 3 Side view of the shape of the sample during the resistance measurement process Unit is millimeter 1.25±0.06 2.60=0.06 Interval of pressure tt Ground resistance Half-0.5=0. Figure 4 Schematic diagram of the resistance measurement equipment Folding of the national 5 sample GB/T5591.2—2002 Unit is millimeter Unit is meter G0/T 5591.2 2002
Figure 6 Analysis of stacking quantity
Unit is demand
Appendix A
(Wide material resistance)
Comparison table of chapter number of this part and EC60626-2:1995 cover number 4.1 Comparison table of chapter number of this part and EC60626-2:1995 child side Table A.1 Comparison of chapter cumulative number of this part and chapter number of 1F:C:60626-2:1995 Use of chapter editing of this part
2. 1. 1.~4. 1. 3
1. 2. [ --t. 2. 2
6. 1-~-t. 5
71. 1 ~ 13. 3
11.1.1..t. 1. 3
1.. 3. : -~11. 1. 2
GBT5591-2200
Enterprise's re-medical standard state stamp number
2. 1. 1~-3. 1. :
2. 2. 1- 2. 1. 3
2. 3-- 2.4
4. 1- 4.5
5. 1-- 6. 4
5. 1. 1-- 3. J. 3
9. 3- : - 9. 3. 3
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.