Some standard content:
National Standard of the People's Republic of China
Polyester film used as electrical insulation Subject content and scope of application
GB13950—92
This standard specifies electrical insulation Product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of polyester films (hereinafter referred to as films).
This standard applies to films made of polyethylene terephthalate by casting and biaxial orientation. 2 Reference standards
GB/T13541 Test methods for electrical plastic films GB/T13542 General requirements for electrical plastic films 3 Product classification
Films are divided into two types and three models according to their characteristics and uses. As shown in Table 1. Table 1 Classification and model of film
Class
Type
Type 1
Type 2
4 Technical requirements
4.1 Appearance|| tt||Type
No.
6020
6021
6022
Characteristics
General purpose transparent film
General Opaque films for
and
intended for
purposes
capacitor dielectric films (thickness 23 μm and below) The appearance of the film shall comply with the provisions of Article 4.1 of GB/T13542, The edges of the film should be neat and undamaged. 4.2 Film rolls, joints and tube cores
Film rolls, joints and tube cores shall comply with the provisions of Articles 4.2, 4.3 and 4.4 of GB/T13542. 4.3 Dimensions
4.3.1 Thickness and limit deviation
The thickness is determined by negotiation between the supplier and the buyer. The recommended nominal thicknesses are as follows: 5, 6, 8, 10, 12, 15, 19, 23, 36,50,75,100,125,150,190,250,300,350μm. The thickness limit deviation of films 100um and below is ±10% of the nominal thickness, and the thickness limit deviation of films larger than 100μm is ±12.5μm.
4.3.2 Number of joints and shortest segment length
State Bureau of Technical Supervision approved on December 19, 1992 and implemented on July 01, 1993
GB13950—92
per volume The number of joints and the shortest segment length are determined by negotiation between the supply and demand parties. When not negotiated, the number of splices per roll and the minimum length of sections shall comply with the requirements in Table 2.
Table 2 Number of joints and shortest segment length
Number of joints, pieces
Not more than
Nominal thickness
μm
5 ~6
>6~10
>10~19
>19~75
>75~250
>250
The width is not more than 50mm
The roll diameter is not more than 250mm
4
3
2
1
4.3.3 Roll diameter, width And the limit deviation
roll diameter is greater than 250mm
5
4
3
2
width is greater than 50mm
roll Diameter 250~450mm
5
4
3
2
1
The shortest segment length, m
not The specification of roll diameter and width less than
200
100
50
shall be determined by negotiation between the supply and demand parties. When not negotiated, the recommended width is 500, 1000mm. The film can be processed into reels according to user requirements. The limit deviations of roll diameter and width are shown in Table 3. Table 3 Limit deviation of roll diameter and width
width
degree
815
>15~50
>50~150
>150～300
>300
4.4 Performance requirements
Roll
Diameter
Film width
≥180
>250
250~450
The various properties of the film should comply with the requirements in Table 4. ±0.2
±0.3
±0.5
±1. 0
±2.0
Limit deviation
mm
The film roll end stringing height
is less than
0.5
1.0
2.0
serial number
2
3|| tt||4
5
6
7
8
9
10
11||tt| |12
13
14
15
Indicator name
Tensile strength (longitudinal and transverse direction)
Nominal thickness: < .15
15~100
>100~190
>190
Elongation at break (longitudinal and transverse directions)
Nominal thickness: < 15
15~50
>50~350
Shrinkage (longitudinal and transverse direction)
Nominal thickness: <15
15~190| |tt||>190
Power frequency electrical strength
DC breakdown voltage
Volume resistivity
Relative dielectric constant
50Hz||tt ||1kHz
Dielectric loss factor
50Hz
1kHz
Density
Melting point
Electrical weakness
Surface resistivity wwW.bzxz.Net
Electrolytic corrosion
Visual inspection method
Metal wire tensile strength method
Dimensional stability at high temperatures
Under tension
Under pressure| |tt||Long-term heat resistance
Temperature index
GB13.950—92
Various properties of the film in Table 4
Single
bit| |tt||6020
MPa
%
%
V/μm
ky
a·m
kg/m2
℃
pieces/m2
0
level%
℃
index value
6021| |tt||≥150
≥150
≥140
≥110
40
≥60
≥80||tt ||≤3.5
≤3.0
2.0
See Table 5
≥1.0×101
2.9~3.4
≤5.0× 10-3
1:390±10
140028
≥256
≥1.0×1013
≥200
≥200| |tt||≥115
6022
See Table 6
≥1.0×1015
3.0～3.4
≤6.0×10-3|| tt||1390±10
See Table 7
≥1.0×1014
Nominal thickness
μm
6
8| |tt||10
12
15
19
23
nominal thickness, um
6
8
10
12
15
19
23
36
50
75| |tt||100
125
150
190
250
300
350
GB13950-92| |tt||Power frequency electrical strength of 5 film
Table 5
DC breakdown voltage of 6022 type film
Table 6
Median value, kv||tt ||Not less than
1.50
2.00
2.40
2.80
3.20
3.40
4.00
Indicator value, V/μm
not less than| |tt||210
208
200
190
174
150
130
105||tt ||90
75
70
65
60
55
50
21 test values ??are medium and low For the values ??in the table, kV does not exceed 2
0.60
1.10
1.50
1.80
2.00
2.20||tt ||2.50
No more than 1
0.40
0.55
0.80
1.00
1.60
1.90|| tt||2.20
4.5 Winding property 1》
Nominal thickness, um
5
6
8
10| | tt | Note: ① The performance index values ??of non-recommended preferred nominal thicknesses in Table 5, Table 6 and Table 7 are obtained by interpolation. 1) Windability is a recommended test item.
Table 8
Indicator name
Deflection
Sagging (tension 5MPa)
6020
<10
< 5.0
6021
Number of weaknesses, number/m
not more than
2
1
0.8
0.4
0.2
6022
<10
<2.0
mm
4.5.2 Film rolls with a width of 150mm and above The flexibility should not be greater than 0.1%. There is no such requirement for films with a thickness greater than 36 μm.
5 Test methods
5.1 Sampling, pretreatment conditions and test conditions are in accordance with Chapter 3 of GB/T13541. 5.2 Appearance, film roll, joints and tube core
5.2.1 Evaluation of film appearance, film roll, joints and tube core shall be judged by visual observation and hand feeling. 5.2.2 The film roll end face string film height and tube core size are measured with a steel ruler with a graduation value of 0.5mm. 5.3 Dimension
5.3.1 Thickness: According to Article 4.1.1 of GB/T13541. 5.3.2 Length: measured with a length measuring device. 5.3.3 Width: According to Chapter 6 of GB/T13541. Film widths above 50mm are measured using a steel ruler with a graduation value of 0.5mm; for film strips with a width of 50mm and below, a length measuring instrument with a graduation value of 0.02mm is used. 5.4 Tensile strength and elongation at break
shall be carried out in accordance with Chapter 11 of GB/T13541. The stretching speed is 100mm/min, and the distance between marking lines is 100mm. If the elongation is calculated using the increment of the distance between the jaws, the distance between the jaws is 100mm. 5.5 Shrinkage rate
According to Chapter 22 of GB/T13541. It can also be tested with 5 thin films about 150mm long and 15±1mm wide, with a distance between marking lines of 100mm. The test temperature is 150±2℃, and the treatment time is 15min. In case of dispute, the method specified in Chapter 22 of GB/T13541 shall be followed.
5.6 Power frequency electrical strength
According to Article 18.1 in GB/T13541. It is recommended to use an electrode system with upper and lower electrode diameters of 6mm. For films with a thickness of 100um and below, the test is conducted in the air, and an anti-flashover cover can be added if necessary. For films with a thickness of 100 μm or more, the test is conducted in transformer oil. The voltage applied method is rapid boost. Take the arithmetic mean of 10 tests as the test result. 5.7 DC breakdown voltage
shall be carried out in accordance with Article 18.2 of GB/T13541.
5.8 volume resistivity
GB13950-92
According to Chapter 16 of GB/T13541. Types 6020 and 6021 are conducted according to method 1. The DC electric field strength applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the multi-layer film feeding method can be used for testing. The electrochemical time is 2 minutes. The number of samples is 3. For model 6022, follow method 2. 5.9 The relative dielectric constant and dielectric loss factor shall be determined in accordance with Chapter 17 of GB/T13541. Types 6020 and 6021 are carried out according to method 1. The intensity of the AC electric field applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the multi-layer film stacking method can be used for testing. The number of samples is 3. . For model 6022, follow method 2.
5.10 Density
According to Chapter 5 of GB/T13541, the test is carried out using the sinking and floating method. The immersion liquid is an aqueous solution of potassium iodide. When the sample floats in the middle of the solution, the density of the solution For the density of the sample, take the median of the three test values ??as the test result, and the test result takes 4 significant figures. This method is only applicable to films with a thickness greater than 12um. 5.11 Melting point
According to Chapter 8 of GB/T13541.
5.12 Electrical weakness
According to any method in Chapter 19 of GB/T13541. The test area is 10m2. The test voltage is calculated based on the nominal thickness of the film as 200V/μm.
5.13 Surface resistivity
According to Chapter 15 of GB/T13541, the electrochemical time is 1min, and the number of samples is 3. 5.14 Electrolytic corrosion
shall be carried out in accordance with Chapter 21 of GB/T13541. Use visual inspection method and metal wire tensile strength method. The test conditions for metal wire tensile strength method are 40±2℃, (93±2)%RH, and the exposure period is 96h. 5.15 Dimensional stability at high temperatures
According to Chapters 23 and 24 of GB/T13541. 5.16 Long-term heat resistance
According to Chapter 33 of GB/T13541. Failure criteria: elongation at break, 5%. During the aging process, the absolute moisture content of the air entering the aging oven should be 9.5~12.5g/m, which is equivalent to (50±5)%RH and 23±2°C. The recommended aging temperatures are 140°C, 160°C and 180°C. .
5.17 Windability
According to Chapter 7 of GB/T13541. || tt | The factory inspection items of type 6022 are carried out according to items 1, 2, 3, 5, 6, 7 and 8 in Table 4 of 4.1, 4.2, 4.3 and 4.4. 6.2 The type inspection items of the film shall be carried out in accordance with the provisions of Chapter 4. Among them, item 15 in Table 4, long-term heat resistance, is a product qualification item. 6.3 Films of the same thickness made from the same batch of resin and the same process conditions are counted as one batch according to the daily output. In the signature method, each signature is designated as one batch. 6.4 Sampling method:
Select one roll from each batch of original wide film for inspection. 6.5·The product appearance, number of joints and width should be inspected roll by roll. 6.6 For the acceptance inspection of the user unit, any roll of film entering the factory at one time should be selected for inspection. 6.7 The remaining requirements should comply with the relevant provisions in GB/T13542. 7 Marking, packaging, transportation and storage
GB13950-92
7.1 Marking, packaging, transportation and storage shall be carried out in accordance with the relevant provisions of GB/T13542. 7.2 The storage period of the film shall be 18 years from the date of production of the product. Month Additional Notes:
This standard is proposed by the Ministry of Mechanical and Electronics Industry of the People's Republic of China. This standard is under the jurisdiction of the Guilin Electrical Equipment Research Institute of the Ministry of Mechanical and Electronic Industry. This standard is drafted by Dongfang Insulation Materials Factory, Tianjin Insulation Materials General Factory, Changzhou Insulation Materials General Factory, Shanghai Chemical Plant, Dandong Plastic Products Factory No. 1 and other units.
The main drafters of this standard are Shi Yurun, Qi Xueying, and Chen Mei.00
Indicator value, V/μm
not less than
210
208
200
190
174| |tt||150
130
105
90
75
70
65
60||tt ||55
50
The 21 test values ??are lower than the values ??in the table, kV does not exceed 2
0.60
1.10
1.50| |tt||1.80
2.00
2.20
2.50
No more than 1
0.40
0.55
0.80
1.00
1.60
1.90
2.20
4.5 Windability 1》
Nominal thickness, um
5
6
8
10
12 and above
GB13950-92
Table 76022 type film electrical weakness||tt ||4.5.1 The requirements for the windability of films with a width less than 150mm are as shown in Table 8. Note: ① The performance index values ??of non-recommended preferred nominal thicknesses in Table 5, Table 6 and Table 7 are obtained by interpolation. 1) Windability is a recommended test item.
Table 8
Indicator name
Deflection
Sagging (tension 5MPa)
6020
<10
< 5.0
6021
Number of weaknesses, number/m
not more than
2
1
0.8
0.4
0.2
6022
<10
<2.0
mm
4.5.2 Film rolls with a width of 150mm and above The rewindability should not be greater than 0.1%. There is no such requirement for films with a thickness greater than 36 μm.
5 Test methods
5.1 Sampling, pretreatment conditions and test conditions are in accordance with Chapter 3 of GB/T13541. 5.2 Appearance, film roll, joints and tube core
5.2.1 Evaluation of film appearance, film roll, joints and tube core shall be judged by visual observation and hand feeling. 5.2.2 The film roll end face string film height and tube core size are measured with a steel ruler with a graduation value of 0.5mm. 5.3 Dimension
5.3.1 Thickness: According to Article 4.1.1 of GB/T13541. 5.3.2 Length: measured with a length measuring device. 5.3.3 Width: According to Chapter 6 of GB/T13541. Film widths above 50mm are measured using a steel ruler with a graduation value of 0.5mm; for film strips with a width of 50mm and below, a length measuring instrument with a graduation value of 0.02mm is used. 5.4 Tensile strength and elongation at break
shall be carried out in accordance with Chapter 11 of GB/T13541. The stretching speed is 100mm/min, and the distance between marking lines is 100mm. If the elongation is calculated using the increment of the distance between the jaws, the distance between the jaws is 100mm. 5.5 Shrinkage rate
According to Chapter 22 of GB/T13541. It can also be tested with 5 thin films about 150mm long and 15±1mm wide, with a distance of 100mm between the marking lines. The test temperature is 150±2℃, and the treatment time is 15min. In case of dispute, the method specified in Chapter 22 of GB/T13541 shall be followed.
5.6 Power frequency electrical strength
According to Article 18.1 in GB/T13541. It is recommended to use an electrode system with upper and lower electrode diameters of 6mm. For films with a thickness of 100um and below, the test is conducted in the air, and an anti-flashover cover can be added if necessary. For films with a thickness of 100 μm or more, the test is conducted in transformer oil. The voltage applied method is rapid boost. Take the arithmetic mean of 10 tests as the test result. 5.7 DC breakdown voltage
shall be carried out in accordance with Article 18.2 of GB/T13541.
5.8 volume resistivity
GB13950—92
According to Chapter 16 of GB/T13541. Types 6020 and 6021 are conducted according to method 1. The DC electric field strength applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the multi-layer film feeding method can be used for testing. The electrochemical time is 2 minutes. The number of samples is 3. For model 6022, follow method 2. 5.9 The relative dielectric constant and dielectric loss factor shall be determined in accordance with Chapter 17 of GB/T13541. Types 6020 and 6021 are carried out according to method 1. The intensity of the AC electric field applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the test can be carried out by laminating multiple layers of films. The number of samples is 3. . For model 6022, follow method 2. | |tt | For the density of the sample, take the median of the three test values ??as the test result, and the test result takes 4 significant figures. This method is only applicable to films with a thickness greater than 12um. 5.11 Melting point
According to Chapter 8 of GB/T13541.
5.12 Electrical weakness
According to any method in Chapter 19 of GB/T13541. The test area is 10m2. The test voltage is calculated based on the nominal thickness of the film as 200V/μm.
5.13 Surface resistivity
According to Chapter 15 of GB/T13541, the electrochemical time is 1min, and the number of samples is 3. 5.14 Electrolytic corrosion
shall be carried out in accordance with Chapter 21 of GB/T13541. Use visual inspection method and metal wire tensile strength method. The test conditions for the metal wire tensile strength method are 40±2℃, (93±2)%RH, and the exposure period is 96h. 5.15 Dimensional stability at high temperatures
According to Chapters 23 and 24 of GB/T13541. 5.16 Long-term heat resistance
According to Chapter 33 of GB/T13541. Failure criteria: elongation at break, 5%. During the aging process, the absolute moisture content of the air entering the aging oven should be 9.5~12.5g/m, which is equivalent to (50±5)%RH and 23±2°C. The recommended aging temperatures are 140°C, 160°C and 180°C. .
5.17 Windability
According to Chapter 7 of GB/T13541. || tt | The factory inspection items of type 6022 are carried out according to items 1, 2, 3, 5, 6, 7 and 8 in Table 4 of 4.1, 4.2, 4.3 and 4.4. 6.2 The type inspection items of the film shall be carried out in accordance with the provisions of Chapter 4. Among them, item 15 in Table 4, long-term heat resistance, is a product qualification item. 6.3 Films of the same thickness made from the same batch of resin and the same process conditions are counted as one batch according to the daily output. In the signature method, each signature is designated as one batch. 6.4 Sampling method:
Select one roll from each batch of original wide film for inspection. 6.5·The product appearance, number of joints and width should be inspected roll by roll. 6.6 For the acceptance inspection of the user unit, any roll of film entering the factory at one time should be selected for inspection. 6.7 The remaining requirements should comply with the relevant provisions in GB/T13542. 7 Marking, packaging, transportation and storage
GB13950-92
7.1 Marking, packaging, transportation and storage shall be carried out in accordance with the relevant provisions of GB/T13542. 7.2 The storage period of the film shall be 18 years from the date of production of the product. Month Additional Notes:
This standard is proposed by the Ministry of Mechanical and Electronics Industry of the People's Republic of China. This standard is under the jurisdiction of the Guilin Electrical Equipment Research Institute of the Ministry of Mechanical and Electronic Industry. This standard is drafted by Dongfang Insulation Materials Factory, Tianjin Insulation Materials General Factory, Changzhou Insulation Materials General Factory, Shanghai Chemical Plant, Dandong Plastic Products Factory No. 1 and other units.
The main drafters of this standard are Shi Yurun, Qi Xueying, and Chen Mei.00
Indicator value, V/μm
not less than
210
208
200
190
174| |tt||150
130
105
90
75
70
65
60||tt ||55
50
The 21 test values ??are lower than the values ??in the table, kV does not exceed 2
0.60
1.10
1.50| |tt||1.80
2.00
2.20
2.50
No more than 1
0.40
0.55
0.80
1.00
1.60
1.90
2.20
4.5 Windability 1》
Nominal thickness, um
5
6
8
10
12 and above
GB13950-92
Table 76022 type film electrical weakness||tt ||4.5.1 The requirements for the windability of films with a width less than 150mm are as shown in Table 8. Note: ① The performance index values ??of non-recommended preferred nominal thicknesses in Table 5, Table 6 and Table 7 are obtained by interpolation. 1) Windability is a recommended test item.
Table 8
Indicator name
Deflection
Sagging (tension 5MPa)
6020
<10
< 5.0
6021
Number of weaknesses, number/m
not more than
2
1
0.8
0.4
0.2
6022
<10
<2.0
mm
4.5.2 Film rolls with a width of 150mm and above The rewindability should not be greater than 0.1%. There is no such requirement for films with a thickness greater than 36 μm.
5 Test methods
5.1 Sampling, pretreatment conditions and test conditions are in accordance with Chapter 3 of GB/T13541. 5.2 Appearance, film roll, joints and tube core
5.2.1 Evaluation of film appearance, film roll, joints and tube core shall be judged by visual observation and hand feeling. 5.2.2 The film roll end face string film height and tube core size are measured with a steel ruler with a graduation value of 0.5mm. 5.3 Dimension
5.3.1 Thickness: According to Article 4.1.1 of GB/T13541. 5.3.2 Length: measured with a length measuring device. 5.3.3 Width: According to Chapter 6 of GB/T13541. Film widths above 50mm are measured using a steel ruler with a graduation value of 0.5mm; for film strips with a width of 50mm and below, a length measuring instrument with a graduation value of 0.02mm is used. 5.4 Tensile strength and elongation at break
shall be carried out in accordance with Chapter 11 of GB/T13541. The stretching speed is 100mm/min, and the distance between marking lines is 100mm. If the elongation is calculated using the increment of the distance between the jaws, the distance between the jaws is 100mm. 5.5 Shrinkage rate
According to Chapter 22 of GB/T13541. It can also be tested with 5 thin films about 150mm long and 15±1mm wide, with a distance between marking lines of 100mm. The test temperature is 150±2℃, and the treatment time is 15min. In case of dispute, the method specified in Chapter 22 of GB/T13541 shall be followed.
5.6 Power frequency electrical strength
According to Article 18.1 in GB/T13541. It is recommended to use an electrode system with upper and lower electrode diameters of 6mm. For films with a thickness of 100um and below, the test is conducted in the air, and an anti-flashover cover can be added if necessary. For films with a thickness of 100 μm or more, the test is conducted in transformer oil. The applied voltage method is rapid boost. Take the arithmetic mean of 10 tests as the test result. 5.7 DC breakdown voltage
shall be carried out in accordance with Article 18.2 of GB/T13541.
5.8 volume resistivity
GB13950—92
According to Chapter 16 of GB/T13541. Types 6020 and 6021 are conducted according to method 1. The DC electric field strength applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the multi-layer film feeding method can be used for testing. The electrochemical time is 2 minutes. The number of samples is 3. For model 6022, follow method 2. 5.9 The relative dielectric constant and dielectric loss factor shall be determined in accordance with Chapter 17 of GB/T13541. Types 6020 and 6021 are carried out according to method 1. The intensity of the AC electric field applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the test can be carried out by laminating multiple layers of films. The number of samples is 3. . For model 6022, follow method 2. | |tt | For the density of the sample, take the median of the three test values ??as the test result, and the test result takes 4 significant figures. This method is only applicable to films with a thickness greater than 12um. 5.11 Melting point
According to Chapter 8 of GB/T13541.
5.12 Electrical weakness
According to any method in Chapter 19 of GB/T13541. The test area is 10m2. The test voltage is calculated based on the nominal thickness of the film as 200V/μm.
5.13 Surface resistivity
According to Chapter 15 of GB/T13541, the electrochemical time is 1min, and the number of samples is 3. 5.14 Electrolytic corrosion
shall be carried out in accordance with Chapter 21 of GB/T13541. Use visual inspection method and metal wire tensile strength method. The test conditions for the metal wire tensile strength method are 40±2℃, (93±2)%RH, and the exposure period is 96h. 5.15 Dimensional stability at high temperatures
According to Chapters 23 and 24 of GB/T13541. 5.16 Long-term heat resistance
According to Chapter 33 of GB/T13541. Failure criteria: elongation at break, 5%. During the aging process, the absolute moisture content of the air entering the aging oven should be 9.5~12.5g/m, which is equivalent to (50±5)%RH and 23±2°C. The recommended aging temperatures are 140°C, 160°C and 180°C. .
5.17 Windability
According to Chapter 7 of GB/T13541. || tt | The factory inspection items of type 6022 are carried out according to items 1, 2, 3, 5, 6, 7 and 8 in Table 4 of 4.1, 4.2, 4.3 and 4.4. 6.2 The type inspection items of the film shall be carried out in accordance with the provisions of Chapter 4. Among them, item 15 in Table 4, long-term heat resistance, is a product qualification item. 6.3 Films of the same thickness made from the same batch of resin and the same process conditions are counted as one batch according to the daily output. In the signature method, each signature is designated as one batch. 6.4 Sampling method:
Select one roll from each batch of original wide film for inspection. 6.5·The product appearance, number of joints and width should be inspected roll by roll. 6.6 For the acceptance inspection of the user unit, any roll of film entering the factory at one time should be selected for inspection. 6.7 The remaining requirements should comply with the relevant provisions in GB/T13542. 7 Marking, packaging, transportation and storage
GB13950-92
7.1 Marking, packaging, transportation and storage shall be carried out in accordance with the relevant provisions of GB/T13542. 7.2 The storage period of the film shall be 18 years from the date of production of the product. Month Additional Notes:
This standard is proposed by the Ministry of Mechanical and Electronics Industry of the People's Republic of China. This standard is under the jurisdiction of the Guilin Electrical Equipment Research Institute of the Ministry of Mechanical and Electronic Industry. This standard is drafted by Dongfang Insulation Materials Factory, Tianjin Insulation Materials General Factory, Changzhou Insulation Materials General Factory, Shanghai Chemical Plant, Dandong Plastic Products Factory No. 1 and other units.
The main drafters of this standard are Shi Yurun, Qi Xueying, and Chen Mei.60
1.10
1.50
1.80
2.00
2.20
2.50
No more than 1||tt| |0.40
0.55
0.80
1.00
1.60
1.90
2.20
4.5 Winding properties 1》| |tt||Nominal thickness, um
5
6
8
10
12 and above
GB13950-92| |tt||Table 76022 type film electrical weakness
4.5.1 The requirements for the windability of films with a width less than 150mm are as shown in Table 8. Note: ① The performance index values ??of non-recommended preferred nominal thicknesses in Table 5, Table 6 and Table 7 are obtained by interpolation. 1) Windability is a recommended test item.
Table 8
Indicator name
Deflection
Sagging (tension 5MPa)
6020
<10
< 5.0
6021
Number of weaknesses, number/m
not more than
2
1
0.8
0.4
0.2
6022
<10
<2.0
mm
4.5.2 Film rolls with a width of 150mm and above The rewindability should not be greater than 0.1%. There is no such requirement for films with a thickness greater than 36 μm.
5 Test methods
5.1 Sampling, pretreatment conditions and test conditions are in accordance with Chapter 3 of GB/T13541. 5.2 Appearance, film roll, joints and tube core
5.2.1 Evaluation of film appearance, film roll, joints and tube core shall be judged by visual observation and hand feeling. 5.2.2 The film roll end face string film height and tube core size are measured with a steel ruler with a graduation value of 0.5mm. 5.3 Dimension
5.3.1 Thickness: According to Article 4.1.1 of GB/T13541. 5.3.2 Length: measured with a length measuring device. 5.3.3 Width: According to Chapter 6 of GB/T13541. Film widths above 50mm are measured using a steel ruler with a graduation value of 0.5mm; for film strips with a width of 50mm and below, a length measuring instrument with a graduation value of 0.02mm is used. 5.4 Tensile strength and elongation at break
shall be carried out in accordance with Chapter 11 of GB/T13541. The stretching speed is 100mm/min, and the distance between marking lines is 100mm. If the elongation is calculated using the increment of the distance between the jaws, the distance between the jaws is 100mm. 5.5 Shrinkage rate
According to Chapter 22 of GB/T13541. It can also be tested with 5 thin films about 150mm long and 15±1mm wide, with a distance of 100mm between the marking lines. The test temperature is 150±2℃, and the processing time is 15min. In case of dispute, the method specified in Chapter 22 of GB/T13541 shall be followed.
5.6 Power frequency electrical strength
According to Article 18.1 in GB/T13541. It is recommended to use an electrode system with upper and lower electrode diameters of 6mm. For films with a thickness of 100um and below, the test is conducted in the air, and an anti-flashover cover can be added if necessary. For films with a thickness of 100 μm or more, the test is conducted in transformer oil. The voltage applied method is rapid boost. Take the arithmetic mean of 10 tests as the test result. 5.7 DC breakdown voltage
shall be carried out in accordance with Article 18.2 of GB/T13541.
5.8 volume resistivity
GB13950—92
According to Chapter 16 of GB/T13541. Types 6020 and 6021 are conducted according to method 1. The DC electric field strength applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the multi-layer film feeding method can be used for testing. The electrochemical time is 2 minutes. The number of samples is 3. For model 6022, proceed according to method 2. 5.9 The relative dielectric constant and dielectric loss factor shall be determined in accordance with Chapter 17 of GB/T13541. Types 6020 and 6021 are carried out according to method 1. The intensity of the AC electric field applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the test can be carried out by laminating multiple layers of films. The number of samples is 3. . For model 6022, proceed according to method 2. | |tt | For the density of the sample, take the median of the three test values ??as the test result, and the test result takes 4 significant figures. This method is only applicable to films with a thickness greater than 12um. 5.11 Melting point
According to Chapter 8 of GB/T13541.
5.12 Electrical weakness
According to any method in Chapter 19 of GB/T13541. The test area is 10m2. The test voltage is calculated based on the nominal thickness of the film as 200V/μm.
5.13 Surface resistivity
According to Chapter 15 of GB/T13541, the electrochemical time is 1min, and the number of samples is 3. 5.14 Electrolytic corrosion
shall be carried out in accordance with Chapter 21 of GB/T13541. Use visual inspection method and metal wire tensile strength method. The test conditions for the metal wire tensile strength method are 40±2℃, (93±2)%RH, and the exposure period is 96h. 5.15 Dimensional stability at high temperatures
According to Chapters 23 and 24 of GB/T13541. 5.16 Long-term heat resistance
According to Chapter 33 of GB/T13541. Failure criteria: elongation at break, 5%. During the aging process, the absolute moisture content of the air entering the aging oven should be 9.5~12.5g/m, which is equivalent to (50±5)%RH and 23±2°C. The recommended aging temperatures are 140°C, 160°C and 180°C. .
5.17 Windability
According to Chapter 7 of GB/T13541. || tt | The factory inspection items of type 6022 are carried out according to items 1, 2, 3, 5, 6, 7 and 8 in Table 4 of 4.1, 4.2, 4.3 and 4.4. 6.2 The type inspection items of the film shall be carried out in accordance with the provisions of Chapter 4. Among them, item 15 in Table 4, long-term heat resistance, is a product qualification item. 6.3 Films of the same thickness made from the same batch of resin and the same process conditions are counted as one batch according to the daily output. In the signature method, each signature is designated as one batch. 6.4 Sampling method:
Select one roll from each batch of original wide film for inspection. 6.5·The product appearance, number of joints and width should be inspected roll by roll. 6.6 For the acceptance inspection of the user unit, any roll of film entering the factory at one time should be selected for inspection. 6.7 The remaining requirements should comply with the relevant provisions in GB/T13542. 7 Marking, packaging, transportation and storage
GB13950-92
7.1 Marking, packaging, transportation and storage shall be carried out in accordance with the relevant provisions of GB/T13542. 7.2 The storage period of the film shall be 18 years from the date of product manufacture. Month Additional Notes:
This standard is proposed by the Ministry of Mechanical and Electronics Industry of the People's Republic of China. This standard is under the jurisdiction of the Guilin Electrical Equipment Research Institute of the Ministry of Mechanical and Electronic Industry. This standard is drafted by Dongfang Insulation Materials Factory, Tianjin Insulation Materials General Factory, Changzhou Insulation Materials General Factory, Shanghai Chemical Plant, Dandong Plastic Products Factory No. 1 and other units.
The main drafters of this standard are Shi Yurun, Qi Xueying, and Chen Mei.60
1.10
1.50
1.80
2.00
2.20
2.50
No more than 1||tt| |0.40
0.55
0.80
1.00
1.60
1.90
2.20
4.5 Winding properties 1》| |tt||Nominal thickness, um
5
6
8
10
12 and above
GB13950-92| |tt||Table 76022 type film electrical weakness
4.5.1 The requirements for the windability of films with a width less than 150mm are as shown in Table 8. Note: ① The performance index values ??of non-recommended preferred nominal thicknesses in Table 5, Table 6 and Table 7 are obtained by interpolation. 1) Windability is a recommended test item.
Table 8
Indicator name
Deflection
Sagging (tension 5MPa)
6020
<10
< 5.0
6021
Number of weaknesses, number/m
not more than
2
1
0.8
0.4
0.2
6022
<10
<2.0
mm
4.5.2 Film rolls with a width of 150mm and above The rewindability should not be greater than 0.1%. There is no such requirement for films with a thickness greater than 36 μm.
5 Test methods
5.1 Sampling, pretreatment conditions and test conditions are in accordance with Chapter 3 of GB/T13541. 5.2 Appearance, film roll, joints and tube core
5.2.1 Evaluation of film appearance, film roll, joints and tube core shall be judged by visual observation and hand feeling. 5.2.2 The film roll end face string film height and tube core size are measured with a steel ruler with a graduation value of 0.5mm. 5.3 Dimension
5.3.1 Thickness: According to Article 4.1.1 of GB/T13541. 5.3.2 Length: measured with a length measuring device. 5.3.3 Width: According to Chapter 6 of GB/T13541. Film widths above 50mm are measured using a steel ruler with a graduation value of 0.5mm; for film strips with a width of 50mm and below, a length measuring instrument with a graduation value of 0.02mm is used. 5.4 Tensile strength and elongation at break
shall be carried out in accordance with Chapter 11 of GB/T13541. The stretching speed is 100mm/min, and the distance between marking lines is 100mm. If the elongation is calculated using the increment of the distance between the jaws, the distance between the jaws is 100mm. 5.5 Shrinkage rate
According to Chapter 22 of GB/T13541. It can also be tested with 5 thin films about 150mm long and 15±1mm wide, with a distance between marking lines of 100mm. The test temperature is 150±2℃, and the processing time is 15min. In case of dispute, the method specified in Chapter 22 of GB/T13541 shall be followed.
5.6 Power frequency electrical strength
According to Article 18.1 in GB/T13541. It is recommended to use an electrode system with upper and lower electrode diameters of 6mm. For films with a thickness of 100um and below, the test is conducted in the air, and an anti-flashover cover can be added if necessary. For films with a thickness of 100 μm or more, the test is conducted in transformer oil. The applied voltage method is rapid boost. Take the arithmetic mean of 10 tests as the test result. 5.7 DC breakdown voltage
shall be carried out in accordance with Article 18.2 of GB/T13541.
5.8 volume resistivity
GB13950-92
According to Chapter 16 of GB/T13541. Types 6020 and 6021 are conducted according to method 1. The DC electric field strength applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the multi-layer film feeding method can be used for testing. The electrochemical time is 2 minutes. The number of samples is 3. For model 6022, follow method 2. 5.9 The relative dielectric constant and dielectric loss factor shall be determined in accordance with Chapter 17 of GB/T13541. Types 6020 and 6021 are carried out according to method 1. The intensity of the AC electric field applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the multi-layer film stacking method can be used for testing. The number of samples is 3. . For model 6022, follow method 2. | |tt | For the density of the sample, take the median of the three test values ??as the test result, and the test result takes 4 significant figures. This method is only applicable to films with a thickness greater than 12um. 5.11 Melting point
According to Chapter 8 of GB/T13541.
5.12 Electrical weakness
According to any method in Chapter 19 of GB/T13541. The test area is 10m2. The test voltage is calculated based on the nominal thickness of the film as 200V/μm.
5.13 Surface resistivity
According to Chapter 15 of GB/T13541, the electrochemical time is 1min, and the number of samples is 3. 5.14 Electrolytic corrosion
shall be carried out in accordance with Chapter 21 of GB/T13541. Use visual inspection method and metal wire tensile strength method. The test conditions for metal wire tensile strength method are 40±2℃, (93±2)%RH, and the exposure period is 96h. 5.15 Dimensional stability at high temperatures
According to Chapters 23 and 24 of GB/T13541. 5.16 Long-term heat resistance
According to Chapter 33 of GB/T13541. Failure criteria: elongation at break, 5%. During the aging process, the absolute moisture content of the air entering the aging oven should be 9.5~12.5g/m, which is equivalent to (50±5)%RH and 23±2°C. The recommended aging temperatures are 140°C, 160°C and 180°C. .
5.17 Windability
According to Chapter 7 of GB/T13541.
6 Inspection Rules
6.1 The factory inspection items of type 6020 and type 6021 shall be carried out according to items 1, 2, 3 and 4 in Table 4 of Articles 4.1, 4.2, 4.3 and 4.4. The factory inspection items of type 6022 are carried out according to items 1, 2, 3, 5, 6, 7 and 8 in Table 4 of 4.1, 4.2, 4.3 and 4.4. 6.2 The type inspection items of the film shall be carried out in accordance with the provisions of Chapter 4. Among them, item 15 in Table 4, long-term heat resistance, is a product qualification item. 6.3 Films of the same thickness made from the same batch of resin and the same process conditions are counted as one batch according to the daily output. In the lot method, each lot is designated as one batch. 6.4 Sampling method:
Select one roll from each batch of original wide film for inspection. 6.5·The product appearance, number of joints and width should be inspected roll by roll. 6.6 For the acceptance inspection of the user unit, any roll of film entering the factory at one time should be selected for inspection. 6.7 The remaining requirements should comply with the relevant provisions in GB/T13542. 7 Marking, packaging, transportation and storage
GB13950-92
7.1 Marking, packaging, transportation and storage shall be carried out in accordance with the relevant provisions of GB/T13542. 7.2 The storage period of the film shall be 18 years from the date of production of the product. Month Additional Notes:
This standard is proposed by the Ministry of Mechanical and Electronics Industry of the People's Republic of China. This standard is under the jurisdiction of the Guilin Electrical Equipment Research Institute of the Ministry of Mechanical and Electronic Industry. This standard is drafted by Dongfang Insulation Materials Factory, Tianjin Insulation Materials General Factory, Changzhou Insulation Materials General Factory, Shanghai Chemical Plant, Dandong Plastic Products Factory No. 1 and other units.
The main drafters of this standard are Shi Yurun, Qi Xueying, and Chen Mei.1. The requirements for the windability of films with a width less than 150mm are as shown in Table 8. Note: ① The performance index values ??of non-recommended preferred nominal thicknesses in Table 5, Table 6 and Table 7 are obtained by interpolation. 1) Windability is a recommended test item.
Table 8
Indicator name
Deflection
Sagging (tension 5MPa)
6020
<10
< 5.0
6021
Number of weaknesses, number/m
not more than
2
1
0.8
0.4
0.2
6022
<10
<2.0
mm
4.5.2 Film rolls with a width of 150mm and above The rewindability should not be greater than 0.1%. There is no such requirement for films with a thickness greater than 36 μm.
5 Test methods
5.1 Sampling, pretreatment conditions and test conditions are in accordance with Chapter 3 of GB/T13541. 5.2 Appearance, film roll, joints and tube core
5.2.1 Evaluation of film appearance, film roll, joints and tube core shall be judged by visual observation and hand feeling. 5.2.2 The film roll end face string film height and tube core size are measured with a steel ruler with a graduation value of 0.5mm. 5.3 Dimension
5.3.1 Thickness: According to Article 4.1.1 of GB/T13541. 5.3.2 Length: measured with a length measuring device. 5.3.3 Width: According to Chapter 6 of GB/T13541. Film widths above 50mm are measured using a steel ruler with a graduation value of 0.5mm; for film strips with a width of 50mm and below, a length measuring instrument with a graduation value of 0.02mm is used. 5.4 Tensile strength and elongation at break
shall be carried out in accordance with Chapter 11 of GB/T13541. The stretching speed is 100mm/min, and the distance between marking lines is 100mm. If the elongation is calculated using the increment of the distance between the jaws, the distance between the jaws is 100mm. 5.5 Shrinkage rate
According to Chapter 22 of GB/T13541. It can also be tested with 5 thin films about 150mm long and 15±1mm wide, with a distance of 100mm between the marking lines. The test temperature is 150±2℃, and the processing time is 15min. In case of dispute, the method specified in Chapter 22 of GB/T13541 shall be followed.
5.6 Power frequency electrical strength
According to Article 18.1 in GB/T13541. It is recommended to use an electrode system with upper and lower electrode diameters of 6mm. For films with a thickness of 100um and below, the test is conducted in the air, and an anti-flashover cover can be added if necessary. For films with a thickness of 100 μm or more, the test is conducted in transformer oil. The applied voltage method is rapid boost. Take the arithmetic mean of 10 tests as the test result. 5.7 DC breakdown voltage
shall be carried out in accordance with Article 18.2 of GB/T13541.
5.8 volume resistivity
GB13950—92
According to Chapter 16 of GB/T13541. Types 6020 and 6021 are conducted according to method 1. The DC electric field strength applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the multi-layer film feeding method can be used for testing. The electrochemical time is 2 minutes. The number of samples is 3. For model 6022, follow method 2. 5.9 The relative dielectric constant and dielectric loss factor shall be determined in accordance with Chapter 17 of GB/T13541. Types 6020 and 6021 are carried out according to method 1. The intensity of the AC electric field applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the test can be carried out by laminating multiple layers of films. The number of samples is 3. . For model 6022, follow method 2. | |tt | For the density of the sample, take the median of the three test values ??as the test result, and the test result takes 4 significant figures. This method is only applicable to films with a thickness greater than 12um. 5.11 Melting point
According to Chapter 8 of GB/T13541.
5.12 Electrical weakness
According to any method in Chapter 19 of GB/T13541. The test area is 10m2. The test voltage is calculated based on the nominal thickness of the film as 200V/μm.
5.13 Surface resistivity
According to Chapter 15 of GB/T13541, the electrochemical time is 1min, and the number of samples is 3. 5.14 Electrolytic corrosion
shall be carried out in accordance with Chapter 21 of GB/T13541. Use visual inspection method and metal wire tensile strength method. The test conditions for the metal wire tensile strength method are 40±2℃, (93±2)%RH, and the exposure period is 96h. 5.15 Dimensional stability at high temperatures
According to Chapters 23 and 24 of GB/T13541. 5.16 Long-term heat resistance
According to Chapter 33 of GB/T13541. Failure criteria: elongation at break, 5%. During the aging process, the absolute moisture content of the air entering the aging oven should be 9.5~12.5g/m, which is equivalent to (50±5)%RH and 23±2°C. The recommended aging temperatures are 140°C, 160°C and 180°C. .
5.17 Windability
According to Chapter 7 of GB/T13541. || tt | The factory inspection items of type 6022 are carried out according to items 1, 2, 3, 5, 6, 7 and 8 in Table 4 of 4.1, 4.2, 4.3 and 4.4. 6.2 The type inspection items of the film shall be carried out in accordance with the provisions of Chapter 4. Among them, item 15 in Table 4, long-term heat resistance, is a product qualification item. 6.3 Films of the same thickness made from the same batch of resin and the same process conditions are counted as one batch according to the daily output. In the signature method, each signature is designated as one batch. 6.4 Sampling method:
Select one roll from each batch of original wide film for inspection. 6.5·The product appearance, number of joints and width should be inspected roll by roll. 6.6 For the acceptance inspection of the user unit, any roll of film entering the factory at one time should be selected for inspection. 6.7 The remaining requirements should comply with the relevant provisions in GB/T13542. 7 Marking, packaging, transportation and storage
GB13950-92
7.1 Marking, packaging, transportation and storage shall be carried out in accordance with the relevant provisions of GB/T13542. 7.2 The storage period of the film shall be 18 years from the date of production of the product. Month Additional Notes:
This standard is proposed by the Ministry of Mechanical and Electronics Industry of the People's Republic of China. This standard is under the jurisdiction of the Guilin Electrical Equipment Research Institute of the Ministry of Mechanical and Electronic Industry. This standard is drafted by Dongfang Insulation Materials Factory, Tianjin Insulation Materials General Factory, Changzhou Insulation Materials General Factory, Shanghai Chemical Plant, Dandong Plastic Products Factory No. 1 and other units.
The main drafters of this standard are Shi Yurun, Qi Xueying, and Chen Mei.1. The requirements for the windability of films with a width less than 150mm are as shown in Table 8. Note: ① The performance index values ??of non-recommended preferred nominal thicknesses in Table 5, Table 6 and Table 7 are obtained by interpolation. 1) Windability is a recommended test item.
Table 8
Indicator name
Deflection
Sagging (tension 5MPa)
6020
<10
< 5.0
6021
Number of weaknesses, number/m
not more than
2
1
0.8
0.4
0.2
6022
<10
<2.0
mm
4.5.2 Film rolls with a width of 150mm and above The rewindability should not be greater than 0.1%. There is no such requirement for films with a thickness greater than 36 μm.
5 Test methods
5.1 Sampling, pretreatment conditions and test conditions are in accordance with Chapter 3 of GB/T13541. 5.2 Appearance, film roll, joints and tube core
5.2.1 Evaluation of film appearance, film roll, joints and tube core shall be judged by visual observation and hand feeling. 5.2.2 The film roll end face string film height and tube core size are measured with a steel ruler with a graduation value of 0.5mm. 5.3 Dimension
5.3.1 Thickness: According to Article 4.1.1 of GB/T13541. 5.3.2 Length: measured with a length measuring device. 5.3.3 Width: According to Chapter 6 of GB/T13541. Film widths above 50mm are measured using a steel ruler with a graduation value of 0.5mm; for film strips with a width of 50mm and below, a length measuring instrument with a graduation value of 0.02mm is used. 5.4 Tensile strength and elongation at break
shall be carried out in accordance with Chapter 11 of GB/T13541. The stretching speed is 100mm/min, and the distance between marking lines is 100mm. If the elongation is calculated using the increment of the distance between the jaws, the distance between the jaws is 100mm. 5.5 Shrinkage rate
According to Chapter 22 of GB/T13541. It can also be tested with 5 thin films about 150mm long and 15±1mm wide, with a distance between marking lines of 100mm. The test temperature is 150±2℃, and the processing time is 15min. In case of dispute, the method specified in Chapter 22 of GB/T13541 shall be followed.
5.6 Power frequency electrical strength
According to Article 18.1 in GB/T13541. It is recommended to use an electrode system with upper and lower electrode diameters of 6mm. For films with a thickness of 100um and below, the test is conducted in the air, and an anti-flashover cover can be added if necessary. For films with a thickness of 100 μm or more, the test is conducted in transformer oil. The voltage applied method is rapid boost. Take the arithmetic mean of 10 tests as the test result. 5.7 DC breakdown voltage
shall be carried out in accordance with Article 18.2 of GB/T13541.
5.8 volume resistivity
GB13950—92
According to Chapter 16 of GB/T13541. Types 6020 and 6021 are conducted according to method 1. The DC electric field strength applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the multi-layer film feeding method can be used for testing. The electrochemical time is 2 minutes. The number of samples is 3. For model 6022, proceed according to method 2. 5.9 The relative dielectric constant and dielectric loss factor shall be determined in accordance with Chapter 17 of GB/T13541. Types 6020 and 6021 are carried out according to method 1. The intensity of the AC electric field applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the test can be carried out by laminating multiple layers of films. The number of samples is 3. . For model 6022, follow method 2. | |tt | For the density of the sample, take the median of the three test values ??as the test result, and the test result takes 4 significant figures. This method is only applicable to films with a thickness greater than 12um. 5.11 Melting point
According to Chapter 8 of GB/T13541.
5.12 Electrical weakness
According to any method in Chapter 19 of GB/T13541. The test area is 10m2. The test voltage is calculated based on the nominal thickness of the film as 200V/μm.
5.13 Surface resistivity
According to Chapter 15 of GB/T13541, the electrochemical time is 1min, and the number of samples is 3. 5.14 Electrolytic corrosion
shall be carried out in accordance with Chapter 21 of GB/T13541. Use visual inspection method and metal wire tensile strength method. The test conditions for the metal wire tensile strength method are 40±2℃, (93±2)%RH, and the exposure period is 96h. 5.15 Dimensional stability at high temperatures
According to Chapters 23 and 24 of GB/T13541. 5.16 Long-term heat resistance
According to Chapter 33 of GB/T13541. Failure criteria: elongation at break, 5%. During the aging process, the absolute moisture content of the air entering the aging oven should be 9.5~12.5g/m, which is equivalent to (50±5)%RH and 23±2°C. The recommended aging temperatures are 140°C, 160°C and 180°C. .
5.17 Windability
According to Chapter 7 of GB/T13541. || tt | The factory inspection items of type 6022 are carried out according to items 1, 2, 3, 5, 6, 7 and 8 in Table 4 of 4.1, 4.2, 4.3 and 4.4. 6.2 The type inspection items of the film shall be carried out in accordance with the provisions of Chapter 4. Among them, item 15 in Table 4, long-term heat resistance, is a product qualification item. 6.3 Films of the same thickness made from the same batch of resin and the same process conditions are counted as one batch according to the daily output. In the lot method, each lot is designated as one batch. 6.4 Sampling method:
Select one roll from each batch of original wide film for inspection. 6.5·The product appearance, number of joints and width should be inspected roll by roll. 6.6 For the acceptance inspection of the user unit, any roll of film entering the factory at one time should be selected for inspection. 6.7 The remaining requirements should comply with the relevant provisions in GB/T13542. 7 Marking, packaging, transportation and storage
GB13950-92
7.1 Marking, packaging, transportation and storage shall be carried out in accordance with the relevant provisions of GB/T13542. 7.2 The storage period of the film shall be 18 years from the date of production of the product. Month Additional Notes:
This standard is proposed by the Ministry of Mechanical and Electronics Industry of the People's Republic of China. This standard is under the jurisdiction of the Guilin Electrical Equipment Research Institute of the Ministry of Mechanical and Electronic Industry. This standard is drafted by Dongfang Insulation Materials Factory, Tianjin Insulation Materials General Factory, Changzhou Insulation Materials General Factory, Shanghai Chemical Plant, Dandong Plastic Products Factory No. 1 and other units.
The main drafters of this standard are Shi Yurun, Qi Xueying, and Chen Mei.4 Tensile strength and elongation at break
shall be carried out in accordance with Chapter 11 of GB/T13541. The stretching speed is 100mm/min, and the distance between marking lines is 100mm. If the elongation is calculated using the increment of the distance between the jaws, the distance between the jaws is 100mm. 5.5 Shrinkage rate
According to Chapter 22 of GB/T13541. It can also be tested with 5 thin films about 150mm long and 15±1mm wide, with a distance of 100mm between the marking lines. The test temperature is 150±2℃, and the treatment time is 15min. In case of dispute, the method specified in Chapter 22 of GB/T13541 shall be followed.
5.6 Power frequency electrical strength
According to Article 18.1 in GB/T13541. It is recommended to use an electrode system with upper and lower electrode diameters of 6mm. For films with a thickness of 100um and below, the test is conducted in the air, and an anti-flashover cover can be added if necessary. For films with a thickness of 100 μm or more, the test is conducted in transformer oil. The voltage applied method is rapid boost. Take the arithmetic mean of 10 tests as the test result. 5.7 DC breakdown voltage
shall be carried out in accordance with Article 18.2 of GB/T13541.
5.8 volume resistivity
GB13950—92
According to Chapter 16 of GB/T13541. Types 6020 and 6021 are conducted according to method 1. The DC electric field strength applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the multi-layer film feeding method can be used for testing. The electrochemical time is 2 minutes. The number of samples is 3. For model 6022, follow method 2. 5.9 The relative dielectric constant and dielectric loss factor shall be determined in accordance with Chapter 17 of GB/T13541. Types 6020 and 6021 are carried out according to method 1. The intensity of the AC electric field applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the test can be carried out by laminating multiple layers of films. The number of samples is 3. . For model 6022, proceed according to method 2. | |tt | For the density of the sample, take the median of the three test values ??as the test result, and the test result takes 4 significant figures. This method is only applicable to films with a thickness greater than 12um. 5.11 Melting point
According to Chapter 8 of GB/T13541.
5.12 Electrical weakness
According to any method in Chapter 19 of GB/T13541. The test area is 10m2. The test voltage is calculated based on the nominal thickness of the film as 200V/μm.
5.13 Surface resistivity
According to Chapter 15 of GB/T13541, the electrochemical time is 1min, and the number of samples is 3. 5.14 Electrolytic corrosion
shall be carried out in accordance with Chapter 21 of GB/T13541. Use visual inspection method and metal wire tensile strength method. The test conditions for the metal wire tensile strength method are 40±2℃, (93±2)%RH, and the exposure period is 96h. 5.15 Dimensional stability at high temperatures
According to Chapters 23 and 24 of GB/T13541. 5.16 Long-term heat resistance
According to Chapter 33 of GB/T13541. Failure criteria: elongation at break, 5%. During the aging process, the absolute moisture content of the air entering the aging oven should be 9.5~12.5g/m, which is equivalent to (50±5)%RH and 23±2°C. The recommended aging temperatures are 140°C, 160°C and 180°C. .
5.17 Windability
According to Chapter 7 of GB/T13541. || tt | The factory inspection items of type 6022 are carried out according to items 1, 2, 3, 5, 6, 7 and 8 in Table 4 of 4.1, 4.2, 4.3 and 4.4. 6.2 The type inspection items of the film shall be carried out in accordance with the provisions of Chapter 4. Among them, item 15 in Table 4, long-term heat resistance, is a product qualification item. 6.3 Films of the same thickness made from the same batch of resin and the same process conditions are counted as one batch according to the daily output. In the lot method, each lot is designated as one batch. 6.4 Sampling method:
Select one roll from each batch of original wide film for inspection. 6.5·The product appearance, number of joints and width should be inspected roll by roll. 6.6 For the acceptance inspection of the user unit, any roll of film entering the factory at one time should be selected for inspection. 6.7 The remaining requirements should comply with the relevant provisions in GB/T13542. 7 Marking, packaging, transportation and storage
GB13950-92
7.1 Marking, packaging, transportation and storage shall be carried out in accordance with the relevant provisions of GB/T13542. 7.2 The storage period of the film shall be 18 years from the date of production of the product. Month Additional Notes:
This standard is proposed by the Ministry of Mechanical and Electronics Industry of the People's Republic of China. This standard is under the jurisdiction of the Guilin Electrical Equipment Research Institute of the Ministry of Mechanical and Electronic Industry. This standard is drafted by Dongfang Insulation Materials Factory, Tianjin Insulation Materials General Factory, Changzhou Insulation Materials General Factory, Shanghai Chemical Plant, Dandong Plastic Products Factory No. 1 and other units.
The main drafters of this standard are Shi Yurun, Qi Xueying, and Chen Mei.4 Tensile strength and elongation at break
shall be carried out in accordance with Chapter 11 of GB/T13541. The stretching speed is 100mm/min, and the distance between marking lines is 100mm. If the elongation is calculated using the increment of the distance between the jaws, the distance between the jaws is 100mm. 5.5 Shrinkage rate
According to Chapter 22 of GB/T13541. It can also be tested with 5 thin films about 150mm long and 15±1mm wide, with a distance of 100mm between the marking lines. The test temperature is 150±2℃, and the treatment time is 15min. In case of dispute, the method specified in Chapter 22 of GB/T13541 shall be followed.
5.6 Power frequency electrical strength
According to Article 18.1 in GB/T13541. It is recommended to use an electrode system with upper and lower electrode diameters of 6mm. For films with a thickness of 100um and below, the test is conducted in the air, and an anti-flashover cover can be added if necessary. For films with a thickness of 100 μm or more, the test is conducted in transformer oil. The applied voltage method is rapid boost. Take the arithmetic mean of 10 tests as the test result. 5.7 DC breakdown voltage
shall be carried out in accordance with Article 18.2 of GB/T13541.
5.8 volume resistivity
GB13950—92
According to Chapter 16 of GB/T13541. Types 6020 and 6021 are conducted according to method 1. The DC electric field strength applied to the sample during the test is not greater than 10V/μm. According to the requirements of the test instrument, the multi-layer film feeding method can be used for testing. The electrochemical time is 2 minutes. The number of samples is 3. For model 6022, follow method 2. 5.9 The relative dielectric constant and dielectric loss factor
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