GB/T 5095.7-1997 Basic test procedures and measurement methods for electromechanical components for electronic equipment Part 7: Mechanical operation test and sealing test
Some standard content:
GB/T 5095.7—1997
This standard is equivalent to [EC:5127:1984] "Basic test procedures and methods for electromechanical components for electronic equipment" and is the first revision of GB5095.786. This standard is proposed by the Ministry of Electronic Industry of the People's Republic of China. This standard was drafted by the National Technical Committee for Standardization of Electromechanical Components for Electronic Equipment and the Standardization Research Institute of the Ministry of Electronic Industry. The drafters of this standard are Yu Yufang, Zhi Qilong, Zhang Juhua, and Wang Yutang. Part 7: Electromechanical components for electronic equipment
CB/T 5095.7—1997
IEC Foreword
1) IEC (International Electromechanical Commission) is a non-international standardization organization composed of national electromechanical committees (IEC National Committees). The purpose of the IEC is to promote international cooperation on standardization issues in the field of the IEC. To this end, in addition to its independent activities, it develops and publishes international standards. The development of international standards is undertaken by technical committees. Any international committee with an interest in the subject matter may participate in the development of international standards. Any international non-governmental organization in contact with the IEC may also participate in the development of international standards. The IEC maintains a high-level cooperative relationship with the International Organization for Standardization (ISO) under conditions agreed upon by the two organizations: 2) The final resolutions or agreements on technical issues are developed by technical committees in which national committees with special interest in the subject are involved, and represent the international consensus on the subject as closely as possible. 3) These resolutions or agreements are published in the form of standards, technical reports or guidelines, and are available for international use in a non-recommended form, and in this sense, are recognized by the national committees:
1) In order to promote international uniformity, all non-governmental committees have the responsibility to make their national and regional standards adopt IEC standards as much as possible. : Any differences between this standard and the national or regional standards shall be indicated in the national or regional standards. This third edition of the international standard IEC:5127 was developed by IEC/TC48 (electronic equipment components and circuit design). This standard replaces the second edition of 188, construction technology and its revision. This standard is used in conjunction with Part 1: General (IEC 12-1). The other test items of the whole set of standards are given in Appendix A to IFC512-1. The overall plan. This is a test item and will be published after it is developed. The whole set of standards is expected to replace the test item H in IEC1301. This standard is based on the following documents: DIS
48(0.0.0298
48(C.. 0.0315
Table quick report
48(C.0.3305
48(0:0. 3322
Voting for approvalDetailed information on this standard can be found in the technical bulletin listed in the table above. The general title of IEC512 is "Electromechanical components for electronic equipment - Test procedures and test methods" and consists of the following parts: Part 1: 1984 General Part 2: 1985 Strand inspection, electrical continuity and contact resistance tests, insulation tests and voltage stress tests Part 3: 1976 Current penetration test Part 4: 19/6 Dynamic stress test Part 5: 1992 Part 6: 1984 Part 7: 1993
Part 8: 1993
Impact test (free parts), static load test (fixed elements), life test and end-of-life test and welding test
Mechanical operation test and sealing test
Mechanical inspection of terminals of connectors and connectors Part 9: 1992 Miscellaneous tests
0.1 Range
National Standard of the People's Republic of China
Electromechanical components for electronic equipment
Basic test procedures and measurement methods
Part 1: Mechanical operation test and sealing test Components for electronic equipmentBasic testing procedures and micasuring mcthaxlsPart 7: Merchanical uppering tests and seaing testsPart 0 General
GB/T 5095.7.-1997
idl IEC 512-7:1993
H#GB5095.786
The test methods specified in this standard shall be adopted when the detailed specifications of components for electronic equipment are required within the scope of TC48. When the detailed specifications of similar components are required, it is also called adoption. 0.2 Referenced standards
The provisions contained in the following standards become the provisions recommended by this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised. All parties using this standard should explore the possibility of using the latest versions of the following standards. GB/0911997 Basic test procedures and measurement methods for electromechanical components of electronic equipment Part 1 General (ilLIEC 512 1:1994)
(GB/T 5095.21997 Basic test procedures for electromechanical components for electronic equipment Measurement methods Part 2: General, electrical continuity and contact resistance test, insulation test and voltage stress test (idtIEC512-1:1994)IEC 68-2-13:1983 Basic environmental test procedures Test M: Low temperature test method 1l:L:68-2-17:1978 Basic environmental test procedures: Test Q seal Amendment No 1 (1991) II: L: 13) - 1: 1988 Connectors for frequencies below 3 MHz Part 1: General and measurement methods Part 1 Mechanical operation tests
1 Test 13a; Engagement and separation force
*TC1% Use: International standards for convex and concave flat switches, sockets and mechanical structures for use in equipment and mechanisms. Note
1 R, F. The bottom of the connector is not too high. This technical committee is jointly developed by TK.I5 and R.=. The socket of the components such as rats or muscle tubes is considered by the relevant technical committee. 3 The safety requirements of the switch are not too small. The technical evaluation committee will consider the safety requirements specified in 331. The relevant technical committee shall determine the appropriateness of the safety requirements specified in the relevant technical committee.
Approved by the State Administration of Technical Supervision on December 26, 1997 and implemented on October 1, 1998
GB/T 5095.71997
This is a detailed standard test method to determine the force required for the mating elements to achieve complete engagement and disengagement, including the effectiveness of the operating device that assists engagement and disengagement.
Note: The term "force" used here refers to the terms such as push, pull, rotation, etc. 1.2 Test method
1.2.1 The mating elements should be semi-rigidly fixed in appropriate positions. 1.2.2 The other party should be fully engaged and disengaged with it according to the normal operating method, such as using an operating device or a visible tool that assists engagement or disengagement:
1.2.3 Measure the force required to complete the engagement and disengagement of the elements. 1.2.4 The rate of engagement and disengagement shall be as specified in the detailed specification: 1.3 Test requirements
The forces required to fully engage and disengage mating elements shall be within the range specified in the detailed specification. 1.4 Sections to be specified
Detailed specification requirements The following details shall be specified for this test: a) Maximum value of engagement force; h) Minimum and maximum values of disengagement, if applicable; r) Rate of engagement and disengagement, if applicable; t) Special tools, if applicable:
(:) If lubricant is used, it shall be specified; ) Any differences with the standard test method shall be specified. 2 Test 13h; Insertion and withdrawal force
is a detailed standard test method to determine the insertion and withdrawal forces of mating elements in the absence of a locking device or similar mechanical action.
Note: Standard test methods may be used to simulate individual mating elements. 2.2 Test Method
2.2.1 The force required to fully insert or remove the mating component or standard test gauge shall be tested without pre-stabilizing the gauge. 2.2.2 One of the mating components shall be fixed in place. 2.2.3 The other component or standard test gauge shall be completely removed from it by the operating method. Care shall be taken to ensure correct alignment and correct direction of movement.
2.2.4 The force required to fully insert or remove the component or standard test gauge shall be measured. 2.2.5 The rate of insertion and removal shall be as specified in the detailed specification. 2.3 Test Requirements
The force required to fully insert and remove the component or standard test gauge shall be within the range specified in the detailed specification.4 Details to be specified
Detailed specification requirements The following details shall be specified for this test: a) Maximum insertion force:
b) Minimum and maximum force, if applicable:
Detailed provisions of the standard test specification, if applicable:
Detailed provisions of the test fixture ... The metal plate shall be strong enough to withstand the applied force, and its length and width shall extend beyond the periphery of the test sample. 3.3 Measurement method
The force shall be applied to the actuator at the point and direction specified in the detailed specification. The force shall be increased steadily at the specified rate until the actuator changes from an initial stable equilibrium position to the next stable equilibrium position or the end position, and the switch completes the electrical operation. The maximum force required to move the actuator to the next stable position or the end position shall be measured and recorded. If the actuator does not stop at the next stable equilibrium position (the end position) during the switch, the torque required to move the actuator to the operating position shall be measured and recorded. If applicable, the operating force shall be measured in two opposite directions. The number of measurements in each direction shall be as specified in the detailed specification. 3.4 Requirements All measured values shall be within the range specified in the detailed specification. 3.5 Required sections The detailed specification requires that the following sections shall be specified for this test: H) Test specimen preparation: h) Number of measurement bases: c) Direction and point of force application d) Speed of force application e) Maximum and minimum forces allowed f) Temperature of normal environment under different conditions, if appropriate; 4 Test 13d: Operating torque (switch operation) 4.1 This test is to establish a detailed standard test method to determine the torque required to rotate the switch shaft from one position to the next. 4.2 Test specimen preparation and installation The test specimen shall be prepared as specified in the detailed specification. The test specimen shall be securely mounted on a metal plate using the mounting described in the detail specification. The plate shall be of sufficient height to withstand the applied force and its length and width shall extend beyond the periphery of the test specimen. 4.3 Measurement method The force shall be applied to the axis in the specified direction. The torque shall be increased steadily at the specified rate until the actuator moves from an initial stable semi-equilibrium position to the next stable equilibrium position or end position and the operation is completed. The maximum torque required to move the actuator to the next stable position or end position shall be measured and recorded. If the actuator fails to move to the next stable semi-equilibrium position (instantaneous position), the torque required to rotate or roll the actuator to the next operating position shall be measured and recorded. If applicable, the operating torque shall be measured in opposite directions. The number of measurements in each direction shall be as specified in the detail specification. 4.4 Requirements All measurements shall be within the limits specified in the detail specification. 4.5 Specific requirements for this test The following details shall be specified for this test: a) Preparation of test sample: b) Test time; c) Operating time: d) Rate of increase of torque: c) Maximum and minimum permissible torque values; B/T 5095.7-1997) Fluidity regardless of normal environment, if applicable; g) Differences from the standard test method. 5 Test 13 Positioning Methods
5.1 This document specifies standard test methods to evaluate the ability of positioning methods to allow correct mating of connectors and to prevent incorrect mating of incorrectly mated connectors:
5.2 Test Sample Preparation and Installation
The connectors shall be prepared as specified in the detailed specifications: Unless otherwise specified in the detailed specifications, the fixed part of the test sample shall be installed as in normal use to enable mating of the free part. When specified in the detailed specifications, suitable standard test gauges shall be used for sockets that do not need to be mated. For edge connectors, the mating part may be a suitable printed board. 5.3 Formal mating test
1 The output part shall be correctly aligned and engaged with the fixed part. 5.4 For the incorrect mating test of two connectors with the same positioning combination, the connecting device (if any) shall be used to mate the connectors in any incorrect way and add appropriate mating force as required. 5.5 For the incorrect mating test of two connectors with different positioning combinations, the connecting device (if any) shall be used to mate the connectors in all possible ways and add appropriate mating force as required. 5.6 Formal mating test
It shall be possible to mate the connectors completely with the correct force method and it shall be impossible to mate the connectors with any incorrect method. When there is a regulation in the detailed specification - the contacts should only be closed after the locating device is engaged, 5.7 Details requiring regulation
The detailed specification requires that the following details be specified during this test: &) All connectors, printed poles or test standard periods that need to be mated: 1) Engagement force (when applicable):
2) Any requirements for the contact to be engaged before the locating device is engaged, 3) Any differences with the standard test method, Part 2 Sealing Test
6 Test 14a: Sealing (gross air leakage)
is under consideration.
7 Test 14h: Seal (air leak)
7.1 The test method is a standard test method for establishing the effectiveness of the seal under different positive and negative pressures. 7.2 Preparation of test samples
The test samples shall be pre-treated and installed in accordance with the provisions of the detailed specification. 7.3 General requirements
GB/T 5095.7 1997
The test seal shall be maintained at a pressure difference of about 0.1 MPa between the front and back of the test seal in the direction specified in the detailed specification. Depending on the type of equipment used, this can be achieved by applying positive pressure on one side and negative pressure on the opposite side. 7.4 Test method
This test method is suitable for components with a leakage rate of less than 1 Pa·cm/s when the positive pressure is about 0.1 MPa at room temperature. The test sample shall be installed on a plate in a test chamber that can be evacuated so that the air pressure difference between the front and back of the seal is 0.1 MPa. A leak indicator, such as a retention meter, shall be connected to the vacuum box on the low pressure side of the test sample to determine the amount of tracer gas that passes through the seal of the test sample. The tracer gas may be nitrogen, hydrogen, or a mixture of hydrogen and nitrogen at a certain concentration. The high pressure side of the seal is exposed to the tracer gas for a specified time and the leak rate can be determined. If the tracer gas is a mixed gas, such as 10% of the total gas, then the leak rate displayed by the meter is 1% of the total leak rate of the test sample. To control the tracer gas concentration, the high pressure side of the test sample shall be surrounded by a gasket and the tracer gas shall be injected.
Method: If the channel is not treated with a vacuum cleaner in the pipeline before the leak test, the leak rate less than 0.01Pa·cm\/s is considered invalid. 7.5 Requirements
The measured leak rate shall not exceed the maximum value specified in the detailed standard. 5 The detailed specification for this test shall specify the following details: a) test sample preparation and installation: b) test method: c) whether the test includes leakage at the installation seal: d) maximum value of m efficiency: e) any difference from the standard test method. 8 Test 14c: impact water (under consideration). 9 Test 14dl, waterproof immersion 9. The 1-day test is a standard test method to determine the effectiveness of the component seal under conditions of constant pressure and time without waterproofing. 9.2 Test sample preparation
The test sample shall be pre-treated, wired and installed as specified in the detailed specifications. 9.3--General requirements
The test sample shall be immersed in conductive water and placed in a high-voltage chamber for testing according to the test conditions of IIC53-2-17. 5±1 parts by weight of iodine-free salt shall be dissolved in 95 parts of distilled water or deionized water to ensure the conductivity of the water. Attention shall be paid to the light impurities in the container and the solution and they shall not be contaminated, otherwise it will prevent the salt solution from wetting the test sample. All wire or cable bundle ends shall be sealed or outside the test chamber. 9.4 Test procedure
The test sample is placed in a conductive water tank. The change in water temperature of the test sample should not exceed 5 (. The test box should be sealed and the pressure difference should be 107k1a. The error should be ±% or as specified in the detailed specification. The pressure time should be 4h, the error should be +, or as specified in the detailed specification. The air pressure in the box is restored to the positive ambient pressure. While the test sample is still in the test, measure the insulation resistance according to test 3a of (GB/T5095.2-1997).
9.5 Requirements
The insulation resistance should not be less than the minimum value specified in the detailed specification. 9.6 Details that need to be specified
Detailed specification requirements This test should specify the following items: a) Number of test samples:
1) Pre-treatment of test samples,
..comc) Wiring of test samples:
d) Installation of test samples;
CB/T 5095.7 :1997
e) Pressure to be applied (if different from 101 kPa):) Time of application of air pressure if different: 4 h); g) Minimum value of insulation resistance:
h) Difference from the standard test piece method. 10 Test 14e: Low pressure immersion
10.1 Scope
This test is only applicable to plug connectors with this requirement in the detail specification. 10.2 The purpose of this test is to establish a detailed standard test method to determine the sealing performance of plug connectors immersed in salt water when exposed to low pressure in accordance with IEC68-2-13\Test M\.
10.3 Test equipment
10. 3. 1 Low pressure box
The low pressure box is composed of a sealed box and a vacuum device that can visually observe the test sample: the equipment can meet the requirements of TFX:68-2-13 and maintain a low pressure of 2kI. The test sample container should have sufficient volume to place the test sample. 10.3.2 Container
The container should be an open container with sufficient internal volume to accommodate the test sample without excessive bending of the cable or wire bundle. The depth of the potential liquid injected into the container should be able to cover the test sample during the entire test process. 10.3.3 Salt solution
The salt solution should be made by dissolving 5±1 parts of iodine-free salt in 95 parts of distilled water. It is important to ensure that the container and the solution are free of impurities and are not contaminated, otherwise the salt solution will soak the test sample: 10.4 Test product
10.4.1 The test sample should be a complete set of fully assembled and connected electrical connectors. It should have the specified number of contacts, the specified model and specification of the tail prefabricated wires or cables, sealing accessories and other supporting devices according to the detailed specifications. It must be noted that there are no perforations in the insulation layer of the wire or the outer surface of the cable to prevent the molten liquid from leaking into the connector. It must be verified that the connector is indeed fully connected. 104.2 The wires connected to the connector housing must be properly connected. The resistance value from the end of the wire to the farthest point on the connector should not be greater than m.
1c.4.3 The surface of the test sample should be free of stains and pollutants to prevent the blocking liquid from penetrating the test sample. 10.5 Test procedure
1(.5.1 Test sample and no stain
The test sample shall be immersed in the solution according to the provisions of IEC68-2-17. The distance from the highest point of the test sample to the surface of the Buze wave shall not exceed 25mm
The wire or cable of the test sample shall be led out of the liquid at a distance of m, and its end shall not be sealed. The end of the sealed wire or cable shall be terminated in the low-pressure box to expose it to the atmosphere of the low-pressure box. The wire starting line It is necessary to prevent the insulation voltage from breaking or resisting, otherwise it will falsely indicate that the connector has failed.
10.5.2 Low pressure cycle
The test chamber is sealed and, according to the provisions of IEC68-2-13 test M, the air pressure in the chamber is reduced to 2 kA at the rate of atmospheric pressure within 5 to 15 minutes, and this is maintained for at least 30 minutes. After that, the air pressure is raised back to the indoor pressure within 1 minute and maintained for at least 3 minutes. This constitutes a cycle. Repeat this for two more times (a total of 3 cycles). During the entire process of the 3 cycles, the test product must always be completely immersed in the salt solution and the measurements specified in this test are carried out. 10.5.3 Insulation resistance test
GB/T 5095.7 1997
After the third cycle, when the test sample is still immersed in the salt solution, the insulation resistance should be measured according to test 3a of GB/T5095.2-1997.
10.5.4 Withstand voltage test
After the insulation resistance test, when the test sample is still immersed in the salt solution for 1 hour, the withstand voltage test should be carried out according to test 4a of GB/T5095.2-1997.
The test voltage should be applied for at least 5s.
10.6 Appearance inspection
After the above tests are completed, the appearance of the test sample should be inspected immediately and the following items should be recorded: α) Traces of people immersed in salt water
b) Defects of moisture-proof sudden seals:
c) Traces and location of insulation material breakdown. 10.7 Details to be specified
Detailed specifications should be The following details shall be specified for this test: a) Number of test samples to be tested b) Preparation of test samples, including the number of contacts and sealing plugs to be wired c) Type and specification of wire or cable d) Accessories to be installed on the test sample d) Method of testing insulation resistance and the minimum allowable limit value g) Differences from the standard push test force method 11 Test 14r: Interface sealing 11.1 This is a detailed standard test method to check the interface sealing of electrical connectors. 11.2 Preparation of test samples The electrical connector shall be wired and equipped with its accessories according to the detailed specifications. The corresponding hole near the center of the electrical connector shall not be equipped with contacts, and the unwired holes shall be equipped with sealing plugs. Unprotected wiring areas of the electrical connector (such as soldered contacts) shall be protected by appropriate means. 11.3 Test procedure
The electrical connectors shall be mated.
11.3.1 Initial measurements (if selected)
The initial measurements shall be carried out in accordance with the detailed specifications.
11.3.2 Test equipment
The test equipment shall be similar to that specified in test 14c and 10.3. 11.3.3 Conditional test
The test sample shall be soaked according to the test procedure of test 14e 11.3.4 Final test and requirements
The test sample shall be subjected to insulation resistance test according to test 38 of GB/:5095.2-1997. After the insulation lighting test, it shall be subjected to medium voltage withstand test according to test 4a of GB/I5095.2-1997. 11.4 Details to be specifiedbzxZ.net
Detailed specifications require that the following details shall be specified when testing items: a) Number of test samples;
GB/T 5095.7-1997
b) Preparation of test samples, including the number of wiring contacts and the number of sealing plugs: c) Type and size of wire or cable:
d) Accessories to be installed on the test sample: c) Method of measuring insulation resistance and minimum limit value: f) Maximum value of withstand voltage test method and leakage current g) Differences from standard test methods,2 Container
The container shall be an open container with sufficient internal volume to accommodate the test sample without excessive bending of the cable or wire bundle. The depth of the molten liquid injected into the container shall be sufficient to cover the test sample during the entire test. 10.3.3 Salt solution
The salt solution shall be made by dissolving 5 ± 1 parts of iodine-free salt in 95 parts by weight of distilled water. It is necessary to ensure that the container and the solution are free of impurities and are not contaminated, otherwise the salt solution will soak the test sample: 10.4 Test product
10.4.1 The test sample shall be a complete set of fully assembled and connected electrical connectors, which shall have the specified number of contacts, the specified type and specification of tail prefabricated wires or cables, sealing accessories and other supporting devices according to the requirements of the detailed specification. Care must be taken to ensure that there are no perforations in the insulation of the wire or the outer surface of the cable to prevent the melt from leaking into the connector. It must be verified that the connector is indeed fully connected. 104.2 The wires connected to the connector housing must be properly connected. The resistance from the end of the wire to the farthest point on the connector should not be greater than m.
1c.4.3 The surface of the test sample should be free of stains and contaminants to prevent the blocking liquid from penetrating the test sample. 10.5 Test procedure
1(.5.1 Test sample and no stain
The test sample shall be immersed in the solution according to the provisions of QI in IEC68-2-17. The distance from the highest point of the test sample to the surface of the Buze wave shall not exceed 25mm
The wire or cable of the test sample shall be led out of the liquid at 1 meter, and its end shall not be sealed. The end of the sealed wire or cable shall be terminated in the low-pressure box to expose it to the atmosphere of the low-pressure box. The wire starting line It is necessary to prevent the insulation voltage from breaking or resisting, otherwise it will falsely indicate that the connector has failed.
10.5.2 Low pressure cycle
The test chamber is sealed and, according to the provisions of IEC68-2-13 test M, the air pressure in the chamber is reduced to 2 kA at the rate of atmospheric pressure within 5 to 15 minutes, and this is maintained for at least 30 minutes. After that, the air pressure is raised back to the indoor pressure within 1 minute and maintained for at least 3 minutes. This constitutes a cycle. Repeat this for two more times (a total of 3 cycles). During the entire process of the 3 cycles, the test product must always be completely immersed in the salt solution and the measurements specified in this test are carried out. 10.5.3 Insulation resistance test
GB/T 5095.7 1997
After the third cycle, when the test sample is still immersed in the salt solution, the insulation resistance should be measured according to test 3a of GB/T5095.2-1997.
10.5.4 Withstand voltage test
After the insulation resistance test, when the test sample is still immersed in the salt solution for 1 hour, the withstand voltage test should be carried out according to test 4a of GB/T5095.2-1997.
The test voltage should be applied for at least 5s.
10.6 Appearance inspection
After the above tests are completed, the appearance of the test sample should be inspected immediately and the following items should be recorded: α) Traces of people immersed in salt water
b) Defects of moisture-proof sudden seals:
c) Traces and location of insulation material breakdown. 10.7 Details to be specified
Detailed specifications should be The following details shall be specified for this test: a) Number of test samples to be tested b) Preparation of test samples, including the number of contacts and sealing plugs to be wired c) Type and specification of wire or cable d) Accessories to be installed on the test sample d) Method of testing insulation resistance and the minimum allowable limit value g) Differences from the standard push test force method 11 Test 14r: Interface sealing 11.1 This is a detailed standard test method to check the interface sealing of electrical connectors. 11.2 Preparation of test samples The electrical connector shall be wired and equipped with its accessories according to the detailed specifications. The corresponding hole near the center of the electrical connector shall not be equipped with contacts, and the unwired holes shall be equipped with sealing plugs. Unprotected wiring areas of the electrical connector (such as soldered contacts) shall be protected by appropriate means. 11.3 Test procedure
The electrical connectors shall be mated.
11.3.1 Initial measurements (if selected)
The initial measurements shall be carried out in accordance with the detailed specifications.
11.3.2 Test equipment
The test equipment shall be similar to that specified in test 14c and 10.3. 11.3.3 Conditional test
The test sample shall be soaked according to the test procedure of test 14e 11.3.4 Final test and requirements
The test sample shall be subjected to insulation resistance test according to test 38 of GB/:5095.2-1997. After the insulation lighting test, it shall be subjected to medium voltage withstand test according to test 4a of GB/I5095.2-1997. 11.4 Details to be specified
Detailed specifications require that the following details shall be specified when testing items: a) Number of test samples;
GB/T 5095.7-1997
b) Preparation of test samples, including the number of wiring contacts and the number of sealing plugs: c) Type and size of wire or cable:
d) Accessories to be installed on the test sample: c) Method of measuring insulation resistance and minimum limit value: f) Maximum value of withstand voltage test method and leakage current g) Differences from standard test methods,2 Container
The container shall be an open container with sufficient internal volume to accommodate the test sample without excessive bending of the cable or wire bundle. The depth of the molten liquid injected into the container shall be sufficient to cover the test sample during the entire test. 10.3.3 Salt solution
The salt solution shall be made by dissolving 5 ± 1 parts of iodine-free salt in 95 parts by weight of distilled water. It is necessary to ensure that the container and the solution are free of impurities and are not contaminated, otherwise the salt solution will soak the test sample: 10.4 Test product
10.4.1 The test sample shall be a complete set of fully assembled and connected electrical connectors, which shall have the specified number of contacts, the specified type and specification of tail prefabricated wires or cables, sealing accessories and other supporting devices according to the requirements of the detailed specification. Care must be taken to ensure that there are no perforations in the insulation of the wire or the outer surface of the cable to prevent the melt from leaking into the connector. It must be verified that the connector is indeed fully connected. 104.2 The wires connected to the connector housing must be properly connected. The resistance from the end of the wire to the farthest point on the connector should not be greater than m.
1c.4.3 The surface of the test sample should be free of stains and contaminants to prevent the blocking liquid from penetrating the test sample. 10.5 Test procedure
1(.5.1 Test sample and no stain
The test sample shall be immersed in the solution according to the provisions of QI in IEC68-2-17. The distance from the highest point of the test sample to the surface of the Buze wave shall not exceed 25mm
The wire or cable of the test sample shall be led out of the liquid at 1 meter, and its end shall not be sealed. The end of the sealed wire or cable shall be terminated in the low-pressure box to expose it to the atmosphere of the low-pressure box. The wire starting line It is necessary to prevent the insulation voltage from breaking or resisting, otherwise it will falsely indicate that the connector has failed.
10.5.2 Low pressure cycle
The test chamber is sealed and, according to the provisions of IEC68-2-13 test M, the air pressure in the chamber is reduced to 2 kA at the rate of atmospheric pressure within 5 to 15 minutes, and this is maintained for at least 30 minutes. After that, the air pressure is raised back to the indoor pressure within 1 minute and maintained for at least 3 minutes. This constitutes a cycle. Repeat this for two more times (a total of 3 cycles). During the entire process of the 3 cycles, the test product must always be completely immersed in the salt solution and the measurements specified in this test are carried out. 10.5.3 Insulation resistance test
GB/T 5095.7 1997
After the third cycle, when the test sample is still immersed in the salt solution, the insulation resistance should be measured according to test 3a of GB/T5095.2-1997.
10.5.4 Withstand voltage test
After the insulation resistance test, when the test sample is still immersed in the salt solution for 1 hour, the withstand voltage test should be carried out according to test 4a of GB/T5095.2-1997.
The test voltage should be applied for at least 5s.
10.6 Appearance inspection
After the above tests are completed, the appearance of the test sample should be inspected immediately and the following items should be recorded: α) Traces of people immersed in salt water
b) Defects of moisture-proof sudden seals:
c) Traces and location of insulation material breakdown. 10.7 Details to be specified
Detailed specifications should be The following details shall be specified for this test: a) Number of test samples to be tested b) Preparation of test samples, including the number of contacts and sealing plugs to be wired c) Type and specification of wire or cable d) Accessories to be installed on the test sample d) Method of testing insulation resistance and the minimum allowable limit value g) Differences from the standard push test force method 11 Test 14r: Interface sealing 11.1 This is a detailed standard test method to check the interface sealing of electrical connectors. 11.2 Preparation of test samples The electrical connector shall be wired and equipped with its accessories according to the detailed specifications. The corresponding hole near the center of the electrical connector shall not be equipped with contacts, and the unwired holes shall be equipped with sealing plugs. Unprotected wiring areas of the electrical connector (such as soldered contacts) shall be protected by appropriate means. 11.3 Test procedure
The electrical connectors shall be mated.
11.3.1 Initial measurements (if selected)
The initial measurements shall be carried out in accordance with the detailed specifications.
11.3.2 Test equipment
The test equipment shall be similar to that specified in test 14c and 10.3. 11.3.3 Conditional test
The test sample shall be soaked according to the test procedure of test 14e 11.3.4 Final test and requirements
The test sample shall be subjected to insulation resistance test according to test 38 of GB/:5095.2-1997. After the insulation lighting test, it shall be subjected to medium voltage withstand test according to test 4a of GB/I5095.2-1997. 11.4 Details to be specified
Detailed specifications require that the following details shall be specified when testing items: a) Number of test samples;
GB/T 5095.7-1997
b) Preparation of test samples, including the number of wiring contacts and the number of sealing plugs: c) Type and size of wire or cable:
d) Accessories to be installed on the test sample: c) Method of measuring insulation resistance and minimum limit value: f) Maximum value of withstand voltage test method and leakage current g) Differences from standard test methods,7 Details to be specified
Detailed specification requirements The following details shall be specified for this test: a) Number of test samples to be tested b) Preparation of test samples, including the number of contacts to be wired and the number of sealing plugs c) Type and specification of wire or cable d) Accessories installed on the test sample d) Method of testing insulation resistance and the minimum allowable limit value g) Differences from the standard push test force method 11 Test 14r: Interface sealing
11.1 This specification is a detailed standard test method to check the interface sealing of the electrical connector. 11.2 Preparation of test samples
The electrical connector shall be wired and equipped with its accessories in accordance with the detailed specification. The corresponding hole near the center of the electrical connector shall not be equipped with contacts, and the unwired holes shall be equipped with sealing plugs. The unprotected wiring area of the electrical connector (such as tweezers and soldered contacts) shall be protected by appropriate means. 11.3 Test procedure
The electrical connectors shall be mated.
11.3.1 Initial measurements (if selected)
The initial measurements shall be carried out in accordance with the detailed specifications.
11.3.2 Test equipment
The test equipment shall be similar to that specified in test 14c and 10.3. 11.3.3 Conditional test
The test sample shall be soaked according to the test procedure of test 14e 11.3.4 Final test and requirements
The test sample shall be subjected to insulation resistance test according to test 38 of GB/:5095.2-1997. After the insulation lighting test, it shall be subjected to medium voltage withstand test according to test 4a of GB/I5095.2-1997. 11.4 Details to be specified
Detailed specifications require that the following details shall be specified when testing items: a) Number of test samples;
GB/T 5095.7-1997
b) Preparation of test samples, including the number of wiring contacts and the number of sealing plugs: c) Type and size of wire or cable:
d) Accessories to be installed on the test sample: c) Method of measuring insulation resistance and minimum limit value: f) Maximum value of withstand voltage test method and leakage current g) Differences from standard test methods,7 Details to be specified
Detailed specification requirements The following details shall be specified for this test: a) Number of test samples to be tested b) Preparation of test samples, including the number of contacts to be wired and the number of sealing plugs c) Type and specification of wire or cable d) Accessories installed on the test sample d) Method of testing insulation resistance and the minimum allowable limit value g) Differences from the standard push test force method 11 Test 14r: Interface sealing
11.1 This specification is a detailed standard test method to check the interface sealing of the electrical connector. 11.2 Preparation of test samples
The electrical connector shall be wired and equipped with its accessories in accordance with the detailed specification. The corresponding hole near the center of the electrical connector shall not be equipped with contacts, and the unwired holes shall be equipped with sealing plugs. The unprotected wiring area of the electrical connector (such as tweezers and soldered contacts) shall be protected by appropriate means. 11.3 Test procedure
The electrical connectors shall be mated.
11.3.1 Initial measurements (if selected)
The initial measurements shall be carried out in accordance with the detailed specifications.
11.3.2 Test equipment
The test equipment shall be similar to that specified in test 14c and 10.3. 11.3.3 Conditional test
The test sample shall be soaked according to the test procedure of test 14e 11.3.4 Final test and requirements
The test sample shall be subjected to insulation resistance test according to test 38 of GB/:5095.2-1997. After the insulation lighting test, it shall be subjected to medium voltage withstand test according to test 4a of GB/I5095.2-1997. 11.4 Details to be specified
Detailed specifications require that the following details shall be specified when testing items: a) Number of test samples;
GB/T 5095.7-1997
b) Preparation of test samples, including the number of wiring contacts and the number of sealing plugs: c) Type and size of wire or cable:
d) Accessories to be installed on the test sample: c) Method of measuring insulation resistance and minimum limit value: f) Maximum value of withstand voltage test method and leakage current g) Differences from standard test methods,
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