GB/T 4074.1 is the general provisions for the test methods of winding wires, and also defines the terms used in GB/T 4074. The contents of GB/T 4074.1 to 4074.6 are listed in Appendix A. GB/T 4074.1-1999 Test methods for winding wires Part 1: General provisions GB/T4074.1-1999 Standard download decompression password: www.bzxz.net

GB/T4074.1~4074.6—1999
This standard is equivalent to the International Electrotechnical Commission (IEC) standard IEC60851 "Winding Wire Test Method" series of standards. This series of standards are:
IEC60851-1:1996
IEC60851-2:1996
IEC60851-3.1996
IEC60851-4:1997
IEC60851-5.1996
IEC60851-6:1996
Winding Wire Test Method Test methods
Part 1: General provisions
Test methods for winding wires
Part 2: Dimensional measurement
Test methods for winding wires
Part 3: Mechanical properties
Test methods for winding wires
Part 4: Chemical properties
Test methods for winding wires Part 5: Electrical properties Test methods for winding wires
Part 6: Thermal properties||t t||Corresponding to the IEC60851 series of standards, this standard is divided into the following parts under the general title of "Test methods for winding wires": Test methods for winding wires Part 1: General provisions GB/T4074.1—1999
GB/T4074.2—1999
Test methods for winding wires Part 2: Dimensional measurement GB/T4074.3—1999
Test methods for winding wires Part 3: Mechanical properties Test methods for winding wires Part 4: Chemical properties GB/T4074.4—1999
GB/T4074.5—1999
Test methods for winding wires Part 5: Electrical properties GB/T4074.6—1999
Test methods for winding wires Part 6: Thermal properties Parts 2, 3, 4, 5 and 6 should be used together with Part 1. According to the provisions of GB/T1.1-1993 and the first amendment (1995), the foreword of the adopted object should be retained when adopting an international standard. Since the IEC60851 standard consists of 6 parts, all 6 parts have a foreword. Therefore, they are combined into the "IEC Foreword" of this standard. The "Introduction" of each part is also combined into the IEC Introduction of this standard. In addition, some editorial errors in IEC60851 were corrected when formulating this standard.
This standard cancels GB/T4074.15-1983\Reciprocating paint scraping test method", GB/T4074.18-1983\Breakdown voltage aluminum foil method", GB/T4074.28-1983 trichloroethylene and methanol extraction method", GB/T4074.30-1983\Chlorodifluoromethane solvent method" and GB/T4074.31-1983\Chlorodifluoromethane foaming method". This standard adds the self-adhesive layer thickness of enameled round wire, the bonding strength of twisted coils and the friction test methods. This standard revises GB/T4074.23-1983 "Test method for resistance to water-containing transformer oil". This standard retains the type test (T), extraction test (T) and extraction test (T) in GB/T4074.1-1983. The definitions of sample test (S) and routine test (R) are used to facilitate the implementation of the enameled wire product standard. Since the first amendment to IEC60172 (1998) has specified the temperature index determination method for enameled flat wire and film wrapped wire, the test method 15 "Temperature Index" in Part 6 "Thermal Properties" of this standard has been modified accordingly. This standard replaces GB/T4074-1983 and GB/T1343-1984 standards from the date of implementation. The appendices to this standard are all suggestive appendices. This standard was proposed by the State Bureau of Machinery Industry. This standard is under the jurisdiction of the National Technical Committee for Standardization of Wires and Cables. The main drafting units of this standard: Shanghai Cable Research Institute, Fuzhou Datong Electromechanical Co., Ltd., Tongling Jingda Copper Materials Group Co., Ltd., Zhengzhou Electromagnetic Wire Factory, Hengyang Instrument Machinery Factory. The main drafters of this standard: Chen Huimin, Shu Yingchun, Zheng Qirong, Zhu Qiang, Hu Jie, Yin Yuelu. 1
GB/T4074.14074.6—1999
IEC Foreword
1.IEC (International Electrotechnical Commission) is an international standardization organization composed of national electrotechnical committees (IEC National Committees). The purpose of EC is to promote international cooperation on all issues of standardization in the electrical and electronic fields. To achieve this purpose, in addition to organizing various activities, EC also publishes international standards and entrusts technical committees to formulate these standards. Any national committee interested in a certain standard may participate in the formulation of the standard. 2. Technical Committee IEC formal resolutions or agreements drawn up on behalf of the National Committees on technical issues of particular concern to them express as far as possible the international consensus on these issues. 3 These resolutions or agreements are published in the form of standards, technical reports or guidelines, which are used internationally in the form of recommended documents and are recognized by the National Committees in this sense. 4 In order to promote international unification, the IEC National Committees frankly adopt IEC International Standards in their countries and regions to the greatest extent possible. Any differences between EC standards and corresponding national or regional standards should be clearly pointed out in the national or regional standards. 5. IEC does not provide a marking method to indicate IEC approval, nor does IEC assume responsibility for any equipment that claims to comply with the requirements of a standard.
6. It must be noted that some of the contents of this international standard may be subject to patent rights. IEC shall not be responsible for identifying any or all such patent rights.
International Standard IEC60851-160851-6 was prepared by IEC Technical Committee 55 "Winding Wire". The second edition of IEC60851-1 standard cancels and replaces the first edition of 1985 and makes technical revisions. The text of this standard is based on the following documents: FDIS Documents
55/470A/FDIS
Voting Report
55/511/RVDwww.bzxz.net
Full information on the voting for the approval of this standard can be found in the "Voting Report" listed in the table above. Appendix A is an informative appendix only.
The second edition of IEC60851-2 standard cancels and replaces the first edition published in 1985 and Amendment No. 1 (1992), and is technically revised.
The text of this standard is based on the following documents: FDIS Documents
55/471A/FDIS
Voting Report
55/512/RVD
Full information on the voting for the approval of this standard can be found in the "Voting Report" listed in the table above. The first amendment to IEC60851-2 is based on the following documents: FDIS Document
55/587/FDIS
Voting Report
55/605/RVD
All information on the voting to approve this standard can be found in the "Voting Report" listed in the table above. 1
GB/T4074.1~4074.6—1999
The second edition of IEC60851-3 standard cancels and replaces the first edition published in 1985 and its first and second amendments (1992), and makes technical revisions.
The text of this standard is based on the following documents:FDIS Document
55/472A/FDIS
Voting Report
55/513/RVD
Full information on the voting for the approval of this standard can be found in the "Voting Report" listed in the table above. Appendices A and B are only informative appendices. Amendment No. 1 to IEC60851-3 is based on the following documents:FDIS Document
55/592/FDIS
Voting Report
55/612/RVD
Full information on the voting for the approval of this standard can be found in the "Voting Report" listed in the table above. The second edition of IEC60851-4 standard cancels and replaces the first edition published in 1985 and its amendment No. 1 (1992), and makes technical revisions.
The text of this standard is based on the following documents: FDIS Documents
55/473A/FDIS
Voting Report
55/514/RVD
Full information on the voting and approval of this standard can be found in the "Voting Report" listed in the table above. Amendment No. 1 to IEC60851-4 is based on the following documents: FDIS Documents
55/597/FDIS
Voting Report
55/614/RVD
Full information on the voting and approval of this standard can be found in the "Voting Report" listed in the table above. IEC60851-4 Amendment No. 2.The first edition is a combination of the second edition of EC60851-4 (1996) and its first amendment (1997). The third edition of IEC60851-5 standard cancels and replaces the second edition published in 1988 and its first amendment (1990), and makes technical revisions.
This standard text is based on the following documents: FDIS document
55/474A/FDIS
Voting report
55/515/RVD
Full information on the voting to approve this standard can be found in the "Voting Report" listed in the table above. The first amendment to IEC60851-5 is based on the following documents:1
GB/T4074.1～4074.6—1999
FDIS Document
55/542/FDIS
Voting Report
55/572/RVD
Full information on the voting for the approval of this standard can be found in the "Voting Report" listed in the table above. The second edition of IEC60851-6 standard cancels and replaces the first edition published in 1985 and makes technical revisions. The text of this standard is based on the following documents:FDIS Document
55/475A/FDIS
Voting Report
55/516/RVD
Full information on the voting for the approval of this standard can be found in the "Voting Report" listed in the table above. Appendix A is an informative appendix only.
The first amendment to IEC60851-6 is based on the following documents:FDIS Document
55/561/FDIS
Voting Report
55/593/RVD
All information on the voting to approve this standard can be found in the "Voting Report" listed in the table above. N
GB/T4074.14074.6—1999
GB/T4074.1~4074.6 is a part of the series of standards for insulated wires for windings of electrical equipment. This series of standards consists of 3 parts:
a) Test methods (GB/T4074);
b) Product standards (IEc60317);
c) Packaging (JB/T8135).
1 Scope
National Standard of the People's Republic of China
Test methods for winding wires Part 1: General
GB/T4074.1—1999
idt IEC 60851-1:1996
Replaces GB/T4074.1—1983
GB/T1343.1—1984
GB/T4074.1 is the general provisions for the test methods for winding wires, and also specifies the definitions of terms used in GB/T4074. The contents of GB/T4074.1 to 4074.6 are listed in Appendix A. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard was published, the versions shown were valid. All standards are subject to revision. Parties using this standard should explore the possibility of using the latest version of the following standards. GB/T4074.2-1999 Winding wire test method Part 2: Dimensional measurement (idtIEC60851-2.1996) GB/T4074.3-1999 Winding wire test method Part 3: Mechanical properties (idtIEC60851-3: 1996) GB/T4074.4-1999 Winding wire test method Part 4: Chemical properties (idtIEC60851-4: 1997) GB/T4074.5-1999 Winding wire test method Part 5 Part: Electrical properties (idtIEC60851-5: 1996) GB/T4074.6-1999 Test methods for winding wires Part 6: Thermal properties (idtIEC60851-6: 1996) IEC60317 Product standard for special winding wires
3 General rules for definitions and test methods
3.1 Definitions
This standard adopts the following definitions:
3.1.1 Self-adhesive layer
A material coated on the surface of enameled wires, which has the specific function of making the enameled wires adhere to each other. 3.1.2 Bundle
A winding wire that is made up of multiple thin-diameter insulated wires that are not bundled together in a predetermined geometric position. This bundle may or may not have an outer covering layer.
3.1.3 Thermal grade
The thermal properties of the winding wire are expressed by temperature index and thermal shock temperature. 3.1.4 Paint layer
Material applied to a conductor or insulated wire by an appropriate method and then dried and cured. 3.1.5 Conductor
Bare metal wire after the insulation layer is removed.
3.1.6 Coating
A winding, wrapping or braided material coated on a bare conductor or insulated conductor. Approved by the State Administration of Quality and Technical Supervision on November 11, 1999 and implemented on May 1, 2000
3.1.7 Crack
GB/T4074.1—1999
A crack in the insulating layer, where the conductor can be seen under the specified magnification. 3.1.8 Composite paint layer
An insulating layer composed of two different materials, namely a primer layer and a surface paint layer. 3.1.9 Enameled wire
Insulated wire coated with cured resin insulation.
3.1.10 Grade
Insulation thickness range of finished wire.
3.1.11 Insulation
Coating or covering with specific voltage-resistant function on the surface of the conductor. 3.1.12 Conductor nominal size
Nominal value of conductor size as specified in IEC60317. 3.1.13 Single varnish layer
Insulation layer composed of one material.
3.1.14 Winding wire
Wire used for winding to achieve electromagnetic energy conversion. 3.1.15 Wire
Conductor coated or covered with insulation.
3.1.16 Type test (T)
Type test is a test conducted by the manufacturer before providing a certain type of winding wire in the product standard. The characteristic of type test is that it is generally not repeated after being done once. However, when the material, structure and main process used in the winding wire are changed and affect the performance of the winding wire, the test must be repeated; or when there are other provisions in the product standard, such as regular testing, it should also be repeated as required. 3.1.17 Sampling test (S)
Sampling test is a test conducted by the manufacturer on the winding wire drawn into a shaft according to the manufacturing batch and the sample is cut from it. 3.1.18 Routine test (R)
Routine test is a test conducted by the manufacturer on all finished winding wires. 3.2 General test methods
Unless otherwise specified, all tests should be carried out at a temperature of 15℃~35℃ and a relative humidity of 45%~75%. Before measurement, the sample should be placed in the above environmental conditions for a sufficient time for pretreatment so that the sample can reach a stable state. When the test winding wire is removed from the package, it shall not be subjected to tension or unnecessary bending. Before each test, sufficient winding wire shall be removed to ensure that the specimen does not contain damaged wire segments. All mandatory requirements of the test method are usually specified in the instructions. The attached figure only shows a possible device for carrying out the test.
When there is a conflict between the IEC60317 product standard and this standard, the product standard shall prevail. When the test is limited to a certain type of winding wire, it will be specified together with the test method. In Appendix A, the test items of GB/T4074.2, GB/T4074.3, GB/T4074.4, GB/T4074.5 and GB/T4074.6 with * are type tests. These tests are carried out at intervals according to the user's requirements. The test method numbers of GB/T4074.2, GB/T4074.3, GB/T4074.4, GB/T4074.5 and GB/T4074.6 correspond to the EC60317 article numbers.
Adoption instructions:
1 To facilitate the implementation and adoption of enameled wire product standards, this standard adds the definitions of type test, sampling test and routine test. 2
Part 2: Dimension measurement
1 Scope
2 Reference standards
3 Test method 4: Dimension measurement
3.1 Gauges
3.1.1 Round wire and flat wire
3.1.2 Bundled wire
3.2 Test procedure
3.2.1 Conductor size
3.2.1.1 Round wire
3.2.1.2 Flat wire
3.2.2 Conductor out-of-roundness
3.2.3 Flat wire fillet
3.2.4 Insulation thickness
3.2.4.1 Round wire
3.2.4.2 Flat wire
Overall dimensions
3.2.5.1 Round wire
3.2.5.3 Bundled wire
Thickness of self-adhesive layer of enameled round wire
Part 3: Mechanical properties
Referenced standards
3 Test method 6: Elongation
3.1 Elongation at break
3.2 Resistance to Tensile strength
4 Test method 7: Rebound resilience
GB/T4074.1—1999
Appendix A
(Suggestive appendix)
GB/T4074.2~4074.6 Test method list 4.1 Round wire with a conductor nominal diameter of 0.080 mm or more and 1.600 mm or less 4.2 Round wire and flat wire with a conductor nominal diameter of 1.600 mm or more 5 Test method 8: Flexibility and adhesion
5.1 Round rod winding test
5.1.1 Round wire
5.1.2 Flat wire
5.1.3 Coated bundled wire
5.2 Tensile test (applicable to enameled round wire with a conductor nominal diameter of 1.600mm or more)3
GB/T4074.1—1999
5.3 Snap-break test (applicable to enameled round wire with a conductor nominal diameter of 1.000mm or less)5.4 Peel test (applicable to enameled round wire with a conductor nominal diameter of 1.000mm or more)5.5 Adhesion test
5.5.1 Enameled flat wire|| tt||5.5.2 Impregnated fiber-coated round and flat wires
5.5.3 Fiber-coated enameled round and flat wires
5.5.4 Film-wound round and flat wires
6 Test method 11*: Scratch resistance (applicable to enameled round wires)7 Test method 18*: Thermal bonding and solvent bonding (applicable to enameled round wires with a conductor nominal diameter of 0.050 mm or more and 2.000 mm or less)
7.1 Bonding strength of vertical spiral coils
7.2 Bonding strength of twisted coils
Appendix A (Recommendations Appendix B (Indicative Appendix) Bond strength of thermally bonded enameled wires Appendix B (Indicative Appendix) Friction test methods Part 4: Chemical properties
1 Scope
2 Reference standards
3 Test method 12*: Solvent resistance (applicable to enameled round wires and enameled flat wires with a conductor nominal diameter of more than 0.250 mm) 4
Test method 16*: Refrigerant resistance (applicable to enameled round wires) 5 Test method 17: Direct solderability (applicable to enameled round wires and bundled wires) 6 Test method 20*: Hydrolysis resistance and transformer oil resistance (applicable to enameled wires) 6.1 Round wire
6.2 Flat wire
Part 5: Electrical properties
1 Scope
2 Reference standards
3 Test method 5: Resistance
4, Test method 13: Breakdown voltage
4.1 Test principle
4.2 Test equipment
4.3 Enameled round wire with a conductor nominal diameter of 0.100 mm or less4.4 Enameled round wire with a conductor nominal diameter of 0.100 mm or more and 2.500 mm or less4.5 Enameled round wire with a conductor nominal diameter of 2.500 mm or more Round wires over mm4.6 Flat wires
5 Test method 14: Film continuity (applicable to enameled round wires and film-wrapped round wires)6 Test method 19: Dielectric loss factor (applicable to enameled wires and bundled wires) Part 6: Thermal properties
1 Scope
2 Reference standards
3 Test method 9: Thermal shock (applicable to enameled wires and film-wrapped wires)4
3.1 Preparation of test specimens
3.1.1 Round wires
3.1.2 Flat wires
3.2 Test procedure||tt ||3.3 Test results
GB/T4074.1—1999
4 Test method 10*: Softening breakdown (applicable to enameled round wire and film-wound round wire with nominal conductor diameter of 0.100mm or more and 1.600mm or less)
5 Test method 15*: Temperature index
5.1 Enameled wire
5.2 Film-wound wire
6 Test method 21: Weight loss (applicable to enameled round wire) Appendix A (suggestive appendix) High temperature failure test (applicable to enameled round wire) 5
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