GB 17196-1997 Safety requirements for flat quick-connect terminals used for connecting copper conductors
Some standard content:
GB 171961997
This standard is equivalent to IEC1210:1993 "Safety requirements for skewed quick-connect terminals for connecting copper conductors with connectors". Flat quick-connect terminals for connecting conductors are parts used in conjunction with instruments and equipment, etc. The quality of their product safety performance is directly related to the safety of people's lives, property and the surrounding environment. In order to improve the quality of such products in my country and develop international trade, it is necessary to adopt IEC1210 in this standard; in terms of writing format and expression method, it is conducive to aligning with international standards such as IEC1210. In order to provide necessary information for international trade and communication, this standard retains the imperial values given in IEC1210. This standard is the first to be converted into a national standard in my country. Appendix A of this standard is a prompt appendix, proposed by the Ministry of Machinery Industry. This standard is under the jurisdiction of the National Technical Committee for the Promotion of Electrical Accessories Standards. The drafting unit of this standard: Guangzhou Electrical Materials Research Institute. The drafters of this standard: He En and Luo Huaiping.
This standard is entrusted to the National Technical Committee for Standardization of Electrical Accessories for interpretation. ..comGB17196--1997
IEC Foreword
International Standard IEC1210 is prepared by SC23F (Sub-Technical Committee for Connectors) of TC23 (Technical Committee for Electrical Accessories) of IEC (International Electrotechnical Commission).
This standard is based on the following documents:
DIS (Draft International Standard) Document
23F (Central Office)34
Voting Report
Amendment to DIS
Voting Report
23F (Central Office)4723F (Central Office)4923F (Central Office)50For details of the voting of this standard, see the voting report listed in the table above. Appendix A is for reference only.
1 Scope
National Standard of the People's Republic of China
Connecting devices-Flat quick-conmect terminationsFor electrical copper conductors-Safety requirements GB 17196—1997
idt IEC 1210.1993
This standard applies to flat quick-connect terminals, which consist of a blade and a matching socket. They are built-in parts or integral parts of equipment or components, or as independent units, and are used to electrically connect copper conductors according to the manufacturer's instructions. The nominal width of the blade is 2.8mm, 4.8mm, 6.3mm or 9.5mm (0.110 in, 0.187 in, 0.250 in or 0.375in). The copper conductors to be connected may be flexible conductors or rigid stranded conductors with a cross-sectional area not exceeding 6 mm2 (AWG wire gauge code not less than 10), or rigid single-core conductors with a cross-sectional area not exceeding 2.5 mm2 (AWG wire gauge code not less than 14). The AC rated voltage of these terminals shall not exceed 1000 V and the frequency shall not exceed 1000 Hz, or their DC rated voltage shall not exceed 1500 Vi. Their temperature limits shall comply with the provisions for materials used within the scope of this standard. Requirements for insulated plugs and sockets are under consideration. Notes
1 If necessary, the terminals of this standard may be used to connect conductors other than aluminum conductors. 2 For safety reasons, it is recommended not to interchange flat quick-connect terminals not within the scope of this standard with those within the scope of this standard: 3 This standard does not apply to sockets with positive locking mechanisms. 4 The flat quick-connect terminals within the scope of this standard are not terminals that are disconnected by pulling the cable. This standard does not apply to flat quick-connect terminals for data circuits and signal circuits. 2 Reference standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB2421-89 General rules for basic environment or test procedures for electronic and electrical products (eqv1EC68-1:1988) GB9797-88 Metal covering nickel + chromium and copper + nickel + chromium electroplating (negISO1456:1988) GB9799-88 Metal covering zinc electroplating on steel (neyISO2081:1986) IEC760:1989 Flat quick-connect terminal
1S02093:1986 Tin electroplating - Technical requirements and test methods 3 Definitions
This standard adopts the following definitions:
3.1 Flat quick-connect termination Flat quick-connect termination An electrical connector consisting of a plug and a socket that is captured and removed with or without tools. Approved by the State Technical Supervision Commission on December 26, 1997 and implemented on December 1, 1998
3.2 Male Labwww.bzxz.net
The part of the quick-connect terminal that engages with the catcher. 3.3 Test tab male test tab
GB 17196--1997
Specially designed for mechanical testing of the sockets taken from the production line, an uncoated tab made of a specific material with an interference fit tolerance. Note: In most cases, the tabs taken from the production line, whether keyed or not, can replace the test tab: 3.4 Female connector
The part of the shoulder-shaped quick-connect terminal that is pushed onto the tab. 3.5 Detent
The pit (dimple) or hole in the tab that engages with the raised part of the socket to lock the mating part. 3.6 Maximum allowable temperature (maximum service temperature) maximum permissible temperate (iaximum service temperate)
The maximum temperature that the quick-connect terminal is allowed to reach during normal use due to ambient temperature, inductive heat and heat caused by the socket itself. 4-General requirements
The design and manufacture of the flat quick-connect terminal should make it reliable and non-hazardous to the user and the surrounding environment during normal use. All specified tests are carried out to check whether it is qualified. 5 General instructions on tests
5.1 The tests specified in this standard are all type tests. 5.2 The test specimens should be tested at an ambient temperature of 20℃±5℃ after being connected in the delivery state and in accordance with the normal use requirements, unless otherwise specified.
In case of doubt (for example, when there is a disagreement between the test laboratories or between the manufacturer and the test laboratory), the test shall be carried out in accordance with the provisions of GB2421.
5.3 If the specimen is delivered without wires, the wires shall be connected to the relevant components using appropriate tools as specified in the manufacturer's instructions.
5.4 The tests shall be carried out on each group of specimens in the order specified in Table 1. The specimen is the most severe combination of the plug and the sleeve as described in 7.2e).
Table 1 Test sequence and specimen groups
Specimen group
(Plug with wire)
(Integral plug and sleeve)
Number of new specimens in each group
(6 double-ended plugs)
(Testing the sleeve)
Chapters of this standard
Temperature rise test
Test sequence
Cyclic current-carrying test
High temperature test
Dimension measurement
Insertion and withdrawal force test||t t||Tensile strength test of crimped parts
Dimension measurement
Tensile strength test of crimped parts
Dimension measurement
Over-wear test
Specimen group
《Integral plug sleeve）
6 Main characteristics
GB171961997
Table 1 (end)
Number of new specimens in each group
(Test plug)
6.1 Flat quick-connect terminals are grouped according to the nominal width of the plug. The terminals within the scope of this standard include the following groups: -2.8 mm (0.110 in) series
-4.8 m (0.187 in) series;
-6.3 mm (0.250 in) series;
9.5 mm (0.375 in) series.
The design recommended by this standard
The dimensions of the plug and socket shall comply with the provisions of Table 10-1 and Table 10-2 and Figures 1 to 5. Dimension measurement
Test sequence
Insertion force and withdrawal force test
Mechanical overload force test
Note: As long as it does not affect the specified dimensions and meets the test requirements, the shapes of the various parts of the terminal can be different from those shown in the figure of this standard, for example: there can be corrugated folded pieces, folded plugs, etc.
6.2 The preferred cross-sectional area of the conductor should be 0.5mm2, 0.75mm2, 1.0mm, 1.5mm22.5tm*4.0mm2 and 6.0mm, or the corresponding AWG wire gauge, see Table 2. Table 2 Relationship between the conductor cross-sectional area (mm) and the AWG wire gauge used in North American countries
Conductor cross-sectional area
Wire gauge number
Approximately equal to the male contact cross-sectional area, nm
6.3 The preferred relationship between the cross-sectional area of the connected conductor and the nominal width of the plug is shown in Table 3. Table 3 Relationship between conductor and plug
Conductor cross section area
2.8/4.8/6.3
2.8/4.8/6.3
2.8/1.8/6.3
4. 8/6. 3
4. 8/6. 3
6. 3/9. 5
Tear sheet nominal width
0.110/0.187/0.250
0.110/0.187/0. 250
0.110/0.187/0.250
0.187/0.250
0.187/0.250
0.250/0.375
0.250/0.375
7 Marking and information
GB 171961997
The manufacturer of the plug and/or plug sleeve supplied separately and the manufacturer of the components with integral plug and/or catch sleeve shall provide sufficient information to ensure that the user can use the flat quick-connect terminal in the expected way and to ensure that the testing department can carry out the relevant tests in accordance with the requirements of this standard. 7.1 The information shall be provided in the following sheet format, see 7.2 for details: - Marking (Ma)
This information shall be marked on the plug and on the plug sleeve, and shall be clear and indelible. NOTE For example, if the plug is an integral part of an appliance switch, this mark shall be on the switch. — Documentation (Do)
This information shall be provided in a separate document. The document may be a loose-leaf printed matter, a label or a technical specification sheet. The document may be provided with the smallest packaging unit or separately. The content of the document shall be provided in an appropriate format to the end user and to the manufacturer of the component or equipment. If necessary, it shall also be provided to the testing department. This standard does not specify the format of this information. Statement (De)
This information shall be provided to the testing department for the purpose of testing in a manner agreed between the testing department and the manufacturer. If the plug or socket is an integral part of the equipment or component, this information is obtained by measurement or observation (see Note 1 to 7.2). The minimum information required by 7.2 is as follows, which shall be provided in the manner specified in 7.1. a) Name or trademark of the manufacturer
b) Model
c) Nominal series
d) Maximum allowable temperature, if higher than 85°C e) The most severe combination of blade and sleeve
) Type and cross-sectional area of wire suitable for a certain part of the terminal Warning:
The insulation of the cable and the insulation of the plastic parts carrying the contacts must match the declared maximum allowable temperature of the terminal. g) Recommendations on the method of connecting the conductor to the terminal (i.e. tools, length of insulation stripped, special processing methods, etc.) h) Material and coating type
1 Information on integral blades and sleeves may be provided together with the equipment or component. 2 This information may be given by the code.
8 Structural requirements
Do (see Note 2)
Do (see Note 2)
Do, De
8.1 The insert and the catcher shall be made of metal, and the metal shall have the mechanical strength, electrical conductivity and corrosion resistance to meet the expected use requirements.
Whether it is qualified or not shall be checked by observation and the tests of 9.1 to 9.6. If necessary, chemical analysis shall be carried out to determine. Examples of metals suitable for use within the permissible temperature range and under standard environmental conditions are: - copper steel (only suitable for use as inserts);
- alloys with a copper content of at least 58%, suitable for use as parts made of cold-rolled sheets; alloys with a copper content of at least 50%, suitable for use as other parts:
stainless steel with a chromium content of at least 13% and a carbon content of no more than 0.09%; - steel that meets the zinc bonding requirements of GB9799 (only suitable for use as grounding conductors); steel that meets the nickel plating requirements of GB9797:
steel that meets the tin plating requirements of ISO20931, GB17196-1997
Note: The relevant product standards should select materials and plating according to the environmental conditions in which the equipment or components in which the fan-shaped quick-connect terminals are installed are located. 8.2 The dimensions of the plug shall comply with the requirements of Table 10-1, Table 10-2, and Figures 1 to 4, where dimensions A, B, C, D, E, F, J, MN, and Q are mandatory requirements.
The dimensions of the socket shall comply with the requirements of Figure 5, where dimensions L2, B3, and 1.5 mm (0.06 in) (maximum) are mandatory requirements. Compliance shall be checked by observation and wall measurement. 8.3 The design and structure of the plug and socket shall ensure that the plug and socket can be correctly inserted and removed without damaging or loosening other components.
Compliance shall be checked by observation and the insertion and withdrawal force tests in 9.1. 8.4 The plug and socket that are integral with the equipment or component shall be firmly held in the positive position. Compliance shall be checked by the mechanical overload force test in 9.2. 8.5 The maximum allowable temperature of both the plug and the socket is determined by their materials and/or coatings. Examples of these maximum permissible temperature values are given as guidelines in Appendix A.
8.6 The design and structure of the plug and socket should be such that: during normal use, its temperature rise will not exceed the permissible value that may affect its continued use.
To check whether it is qualified, carry out the temperature rise test in 9.3. 8.7 The design and structure of the plug and socket should be such that: during normal use, its electrical performance is reliable and will not affect its continued use. To check whether it is qualified, carry out the periodic current-carrying test in 9.4. 8.8 The design and structure of the plug and socket with a maximum permissible temperature higher than 85℃ should be such that: during normal use, its electrical performance is normal and will not affect its continued use.
To check whether it is qualified, carry out the high temperature test in 9.5. 8.9 The crimping part should be able to withstand the mechanical stress that may occur in normal use. To check whether it is qualified, carry out the tensile strength test in 9.6. 8.10 The design and construction of the plug and sleeve shall ensure that any disturbance of the single-core conductor will not affect the performance of the crimped part or the continued use of the plug and sleeve.
Test method is under consideration.
9 Tests
9.1 Insertion force and push-out force test
This test is conducted using 10 plugs and 10 sleeves. These 10 plugs shall be special test plugs manufactured with fine fit tolerances specifically for this test.
The test plugs shall be semi-hard brass products with a hardness of (62 ± 7) HR30T and shall conform to the requirements of Figures 1, 2, 3, 1, 4, Tables 10-1 and 10-2. However, the deviation of dimension C shall conform to the provisions of Table 4, and the ridge around the lock shall not be higher than the standard thickness of 0.025 mm (0.001 in) (see Figure 1).
The test plugs shall not be plated.
Note: In most cases, traces taken from the production line can be used instead of test inserts. Instructions for use:
Since there is no standard in this regard, this specification directly refers to TSO2093:1986...comNominal thickness of test insert
0.5 mm (t. 020 in)
0.8 mm (0. 032 in)
1.2 mm (0. 047 in)
GB 17196-1997
Table 4 Deviation of test insert thickness
Maximum and minimum values of thickness
0.516 mm (.0203 in)
0.500 mm (0. 0197 in)
0.820 mm (0. 0323 in)
0.805 mm (0. 0317 in)
1. 201 mm (0.0473 in)
1,186 tot(0.0467 in)
A new test insert shall be used for each socket during the test. For each pair of insert and catcher, the socket shall be slowly and steadily inserted and removed from the insert six times at a rate of about 1 mm/s. A device that can be accurately adjusted and store readings shall be used to measure the insertion force and the extraction force. An example of such a device is shown in Appendix A of IEC760.
Compliance shall be checked as follows:
The insertion force and the extraction force shall comply with the provisions of Table 5. Table 5 Capture and extraction force
Insert force
Nominal width of insert
2.8 mm (0.110 in)
4.8 mm (0.187 in)
6.3 mm (0.250 in)
9. 5 mm (0. 375 in)
Note: The value given in Ibf is the original value, N
6th extraction force
9.2 (for integral insert or sleeve) Mechanical overload test Apply the axial force specified in Table 6 once with a suitable test device. Insert, sleeve or equipment integral with the insert shall not be damaged in a way that would affect its continued use.
Compliance shall be checked by observation.
Table 6 Holding force
Holding force
Nominal width of plug
2. 8 mm (0. 110 in)
4.8 mm (0.187 in)
6. 3 mm (0.250 in)
9. 5 mm (0. 375 in)
Due to the limitations of the current design, this value is greater than the tensile value of the 6.3 mm plug. N
Relevant product standards may consider using a larger holding force to improve the safety factor of the flat quick-connect terminal structure. 9.3 Temperature rise test
The temperature rise test should be carried out using plugs and sockets of the same nominal width. Before the test, the plugs and sockets should be connected to the wires first. The type, maximum and minimum cross-sectional areas of the wires should comply with the regulations of the manufacturer. The plug socket is only connected to the wire with the largest cross-sectional area for testing. GB 17196-1997
The double-ended plug socket should be taken out from the production line to check the performance of the plug socket. The material of the plug socket should be:
Uncoated semi-hard brass with a hardness of (62±7)HR30T is used to check the plug socket made of (electroplating or) alloy; nickel-plated steel is used to check the plug socket made of nickel-plated steel or stainless steel. The test should be carried out on the plug socket and the plug socket in the delivery state. Before the test, the sample shall not be cleaned or processed, unless otherwise specified in the document.
The jade-type terminal shall be crimped to the corresponding wire within 1Hh after the insulation is stripped off using a crimping tool adjusted according to the manufacturer's requirements. 12 samples are required for each nominal width of the plug and each cross-sectional area of the wire. All test pieces shall be observed, inspected and measured before connecting the wire.
Connect the specimen to each end of an uncoated insulated copper wire 178 mm (7 in) long. The insulation of the wire should comply with the specifications of the quick-connect terminal manufacturer.
Install the specimen with a fine-wire thermocouple. The thermocouple should be installed so that it does not affect the contact of the specimen and does not affect the connection area of the specimen. An example of the installation position of the thermocouple is shown in Figure 7.
During the test, the specimen should be arranged and connected as shown in Figures 6, 7 and 8. The test current specified in Table 7 is passed through the specimen until thermal equilibrium is reached. Then, measure and record the specimen temperature and ambient temperature.
Whether it is qualified, the inspection method is as follows:
The temperature rise of any single joint is calculated as follows. This temperature rise shall not exceed 30K. Temperature rise is the difference between the joint temperature and the ambient temperature. Table 7 Test current for temperature rise test
Conductor cross-sectional area
Test current
AWG wire gauge number
Test current
Note: In the United States and Canada, the test currents used for AWG12 and 11 conductors are 20A and 30A, respectively. 9.4 Cyclic current-carrying test
This test is conducted on the specimens that have undergone the temperature rise test in 9.3. 4
The conductor cross-sectional area, insulation and test equipment are the same as those in 9.3. 12 specimens are subjected to 500 cycles. Each cycle consists of two parts: passing the overload test current specified in Table 8 for 45 min and then not passing the current for 15 min. Table 8 Overload test current for periodic current-carrying test Conductor cross-sectional area
Test current
AWG wire gauge number
Test current
Note! In the United States and Canada, the test currents used for AWG12 and 10 wires are 10A and 60A respectively. 36
Whether the wire is qualified or not, the inspection method is as follows;
GB 17196-1997
After the 24th cycle, measure the temperature rise △t1 of any single contact, and after the 500th cycle, measure the temperature rise sAt of any single contact. The value should not exceed the value plus 15K. Moreover, the temperature rise should not exceed 85K. 9.5. High temperature test
The test should be carried out in a heating box, and the temperature of the heating box is the maximum allowable overflow declared by the manufacturer minus 45K. The test sample used is selected for the maximum allowable temperature higher than 85C and has been tested in 9.3 and 9.4. The cross-sectional area of the wire, insulation and test equipment should be the same as those in 9.3. When placing the sample, wire and test equipment into the heating box, be careful not to mess up these items. The sample should withstand 8 high temperature cycles. Each cycle consists of two parts: 23 h with the test current specified in Table 7 and 1 h without current. After the first hour, if necessary, the temperature of the heating box can be adjusted until the maximum permissible temperature is reached. Compliance is checked as follows:
After the last heating cycle, let the sample cool to ambient temperature. Then repeat the temperature rise test of 9.3. At this test current, the temperature rise should not exceed 45K
9.6 Tensile strength test of the joint part
The test is carried out on 10 new samples.
The crimping tool and wire model are in accordance with the manufacturer's specifications. Each wire of each cross-sectional area declared by the manufacturer shall be tested. Where it is declared that two or more wires are interconnected, each wire shall be tested one by one. During the test, apply the tensile force specified for its cross-sectional area.
Apply the force specified in the table for 1 min. When applying the force, no explosive force should be used. This tension can also be applied by a tensile testing machine, and the moving speed of the testing machine head should be between 25mm (1.0in)/min and 50mm (2.0in)/min. Table 9 Test tensile force of the crimped part
Wire cross-sectional area
AWG wire gauge number
Whether it is qualified, the inspection method is as follows:
The force required to separate the crimped wire from the crimped part should not be less than the specified value in Table 9. Note
1 When conducting this test, if the fan-shaped quick connector has a wire insulation support, it should first be made mechanically ineffective. 2 The tensile strength values of other connection methods are under consideration. 3 The specific test method for non-crimped connection methods can be agreed upon by the manufacturer and the test station. Table 10-1
Nominal dimensions
Bminimum
Dimensions of plug
Qminimum
Nominal dimensions
9. 5×1. 2
Bminimum
GB171961997
Table 10-1 (end)
Note: It is currently being considered that, if necessary, the wire may be soldered to the plug and the corresponding dimensions may be modified. F
Table 10-2
Dimensions of plug
Nominal dimensions
0. 110X 0. 020
0.110X0.032
0.187X0.20
0.187×0.032
0.250×0.032
0.375×0.47
0, 027
Bmin
Note: It is being considered that, if necessary, the wire pot will be welded to the insert and the corresponding dimensions will be modified. F
00,055
Qmin
Qmin
0, 055 1 0, 047
.0.012
45° (approx.
, center of the chain buckle
GB 17196--- 1997
Center of lock
Alternative bevel
1 If 45\ bevel A is in the example diagram, it does not have to be a straight line. Center of lock
2 Dimension L is not specified. This dimension may vary depending on the use (for example, depending on the fixing situation). (Medicine
Optional shoulder
to.o045inymin
3 The dimension C of the insert may be composed of more than one layer of material, but the insert must comply with the requirements of this standard in all aspects. It is allowed to cut the longitudinal edges of the insert.
4 When designing the insert, it is not restricted by the above figures, but the dimensions must comply with the provisions of the figures. 5 Outside the Q range or outside the (B+-1.14)mm (0.043in) range, the thickness of the insert may vary. 6 All parts of the insert should be smooth and free of burrs, but in the area around the buckle 1.3 mm (0.05t in) from the lock buckle, each measurement may have a starting point not exceeding the standard thickness by 0.025mm (0.001in)
Figure 1 Dimensions of inserts
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