This standard specifies the technical requirements and test methods for bare crimping terminals and pre-insulated terminals with insulation layer (hereinafter referred to as bare terminals and pre-insulated terminals, both collectively referred to as terminals) of connecting wires in the range of 0.5-6.0mm2. This standard is applicable to terminal products used as cold crimping terminals of electrical connecting wires in complete sets of equipment such as electric control, low-voltage power distribution, relay protection, power electronics and machine tool electrical appliances. JB/T 2436.1-1992 Copper crimping terminals for wires Part 1: Copper crimping terminals for wires with 0.5-6.0mm2 JB/T2436.1-1992 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T2436.1
1992-08-06
6.0mm2
Zhang Xianji
1993-01-01
Ji Jia Xin Kui Lu Wa Yi Dao
0.526.0mm2
JB/T2436.11992
JB24361978
This standard specifies the technical requirements and test methods for crimping terminals and pre-insulated terminals with insulation layer (hereinafter referred to as bare terminals and pre-insulated terminals, both collectively referred to as terminals) of connecting wires in the range of 0.5~6.0mm2. This standard is applicable to terminal products used as cold H-connections at the ends of electrical connection wires in complete sets of equipment such as electric control, low-voltage power distribution, relay protection, power electronics and machine tool electrical appliances.
Pre-insulated terminals are suitable for circuits with voltages of 660V and below. 2 Reference standards
GR 998
GB1497
GB 2423. 17
GB2828
GB2829
GB 5095. 2
GB 5169. 5
GB5231
ZBK62 002
JB2836
JB 4261
3 Product classification
Basic test methods for low-voltage electrical appliances
Basic international standards for low-voltage electrical appliances
Basic environmental test procedures for electrical and electronic products Test Ka: Salt spray test method Batch inspection Count sampling procedure and sampling table Periodic inspection Count sampling procedure and sampling table Basic test specifications and measurement methods for electromechanical components for electronic equipment Part 2: General inspection, electrical continuity Contact resistance test, insulation test and voltage stress test Fire hazard test for electrical and electronic products Needle flame test method Processing copper - Chemical composition and product shape
Method for compiling product models of general accessories for electrical equipment Electroplating and chemical coating of electrical products
Glossary of accessories for switchgear and control equipment 3.1 The compilation of models is shown in Appendix A.
3.2 The varieties are divided into: TU type, TUL type, TO type, TC type, IJ type, TZ type, TI type operating terminals and pre-insulated terminals. The specifications are 0.5, 1.0, 1.5, 2.5, 4.0, 6.0mm*. 3.3 The dimensions of each series of terminal products are shown in Appendix B. 4 Crimping tools and wires
4.1 Crimping tools
The tools used for crimping of terminals must be certified by professional organizations, and the jaws, wires and terminals must match during crimping. The performance after crimping shall comply with the provisions of this international standard.
4.2 Conductor
The conductor should be a clean multi-strand round copper insulated conductor, the core should be free of pollution or corrosion, and the surface is also allowed to be without coating.
1992-08-06
1993-01-01 Small cable
5 Technical requirements
5.1 Material and processing
5.1.1 Material of the terminal
JB/T2436.11992
The material of the terminal is oxygen-free copper strip of TU2 grade in the GE5231 standard. 5.1.2 Material and color of the pre-insulating sleeve
The material of the pre-insulating sleeve is hard vinyl resin or polyimide resin. Pre-insulation sleeve color: 0.5mm is white; 1.0mm* is red, 1.5mm is light green, 2.5mm* is optional color: 4.0mm is brownish red, 6.0mm is yellow. 5.1.3 Material for soldering
The key joint of the bare terminal crimping part must be welded (such as silver soldering). 5.1.4 The terminal is processed by stamping the copper strip specified in Article 5.1.1 into a bare terminal. The crimping part should have corners and indentations, and the joints should be welded, and then the surface should be treated (such as tweezers or silver plating). The crimping part of the plug is covered with an insulating sleeve to form a pre-insulated terminal. Note: 1) If the crimping part of the plug is not welded (but must be annealed), it can pass the type test and meet the requirements of this standard, then welding is allowed. 5.2 Appearance and size
. The surface of the terminal should have a mark that is not easy to wear and has clear handwriting, product brand or factory logo and main parameters; b. The surface of the nozzle should not have burrs, deformation, spots, peeling, cracking, solder overflow, protrusions, blackening and other defects: c. The size and tolerance of the terminal should comply with the product drawing requirements of the unified design management of the industry; d. The insulation sleeve of the pre-insulated plug should fit tightly and without looseness with the bare terminal, the wall thickness of the insulation sleeve should be uniform and the color should be consistent, 5.3 Plating
The coating thickness on the surface of the terminal shall not be less than: 9 μ for key tweezers and 6 μ for silver plating. 5. Temperature rise
When the temperature rise test is carried out according to Article 6.4, the temperature rise of the crimping part shall not exceed 30K. 5.5 Thermal cycle
When the thermal cycle test is carried out according to Article 6.5, the temperature rise of the crimping part during the 25th thermal cycle cycle shall not be higher than the temperature rise at 0.5m from the connecting wire: the temperature rise during the 125th thermal cycle shall not exceed 8K of the temperature rise of the 25th thermal cycle. 5.6 Crimping resistance
Measure the crimping resistance of the terminal according to Article 6.6. During the test, the resistance of the terminal and the wire crimping part shall not be greater than the resistance of the connected wire of the same length.
After the salt spray test is carried out on the terminal in accordance with 6.7, there shall be no defects such as exposed base material, flooding or pitting of the feed layer, etc., but it does not include the cut-off cross-section parts of the terminal in a string made by continuous stamping. At the same time, the resistance of the terminal and the wire crimping part shall be measured in accordance with the provisions of Article 6.6. The change in resistance after the test shall not be greater than 20% of the resistance before the test.
5. α Short-time withstand current
When the short-time withstand current test is carried out in accordance with Article 6.8, the terminal shall not be deformed, welded, baked off, the wire pulled out or other defects that hinder its use, and shall comply with the provisions of Article 5.
At the same time, the resistance of the terminal and the wire crimping part shall be measured in accordance with Article 6.6. The change in resistance after the test shall not be greater than 20% of the resistance before the test. 5. 9 Tensile strength
When the tensile strength test is carried out according to Article 6.9, there shall be no defects such as slippage between the terminal and the wire, breakage or pulling out of the wire at the crimping part, deformation of the terminal, etc.
5.10 Tensile torsion
JB/T2436.11992
When the tensile torsion test is carried out according to Article 6.10, there shall be no breakage or pulling out of the wire at the connection part, damage or cracks on the terminal, and other defects that hinder the use.
At the same time, measure the resistance of the terminal and the wire crimping part according to Article 6.6. The change in resistance after the test shall not be greater than 20% of the resistance before the test. 5. 11 Dielectric strength
After the dielectric strength test of the pre-insulated terminal is carried out according to Article 6.11, there shall be no insulation breakdown, surface flashover, etc. The insulation resistance measured before the test shall not be less than 10 M (for reference only) 5.12 Aging resistance
After the aging resistance test of the pre-insulating terminal is carried out according to Article 6.12, the insulating sleeve shall not have cracks, expansion and deformation and other defects, and shall comply with the provisions of Article 5.11.
5.13 Insulation sleeve fixation
After the pre-insulating terminal fixation test is carried out according to Article 6.13, the maximum deviation of the insulator sleeve relative to the axial direction of the positive connection part of the head shall not be greater than 1.0mm.
5.1 Fire hazard
When the pre-insulating terminal is tested for fire hazard according to Article 6.14, the residual flame of the sample shall be retained for 15s or less each time, and the total residual flame retention time of the sample after three repeated tests shall not exceed 30s. 15 Oil resistance
After the oil resistance test of the pre-insulating terminal is carried out according to Article 6.15, the insulating sleeve shall not have cracks, expansion and deformation or other defects that hinder use, and shall comply with the provisions of Article 5.11.
5.16 Recovery
After the pre-insulation terminal recovery test is carried out according to G.16, the insulation sleeve recovery size change rate shall be calculated according to the following formula, and its value shall be less than or equal to 35%. At the same time, the insulation sleeve shall not fall off at room temperature. Insulation sleeve recovery size change rate after test Pre-sealing size ±×100% Pre-test size
5.17 Low-temperature crimping
After the pre-insulation terminal low-temperature crimping test is carried out according to 6.17, the insulation sleeve shall not have cracks, shrinkage deformation or other defects that hinder use, and shall comply with the provisions of 5.11.
6 Test method
6.1 Test preparation
6.1.1 The crimping tools and connecting wires used in the test must comply with the provisions of Chapter 4. The terminals used for the test should be new and clean, and the H connection wire should be the same as the test wire.6.1.2 Test conditions, temperature 15~35C/relative humidity 45%~75%, air pressure 86~106 kFa. The environmental conditions when conducting 6.4, 6.5, and 6.6 tests should also comply with 5.2.3. 6.2 Appearance and dimensional inspection
Appearance and dimensional inspection shall be carried out in accordance with the provisions of test 1a (visual inspection) and 1b in GB 5095.2. The inspection results shall comply with the provisions of 5.2.
6.3 Bond layer thickness inspection
Inspect according to the provisions of JB2836. The inspection results shall comply with the provisions of 5.3. 4 Temperature rise test
6.4.1 The wiring of the temperature rise test is as shown in National 1. The length of the insulated wire for connection shall not be less than 1m. The torque of the fasteners shall comply with the provisions of Table 2. The temperature rise test current shall be passed according to the provisions of Table 1. After the temperature of the test point stabilizes, measure its temperature (temperature stability means measuring once every 10 minutes, for three consecutive measurements, and the change value does not exceed 17)3
Previous: 0
JB/T2436.1
*, is the temperature measurement point, and the shallow is the insulation sleeve (banquet). The terminal size for the Tz type terminal test migration is shown in Appendix C. Table 1
Match with terminal
Terminal gauge
Temperature rise test
Thermal cycle
Test current valueTest current value
Wire cross section
Firmware thread diameter
Power-on time
Crimp resistance
Short-time withstand
Test currentCurrent test room
Tensile load value
Rain insulation sink
The sample should be placed horizontally, more than 30cm away from the wall, more than 60cm away from the ceiling and the ground, and the distance between the wires should be 20cm or more. 6. 4. 2
The temperature measurement panel uses the thermocouple method, and the wire diameter of the thermocouple baseline is 0.2~0.3mm, 6. 4.3
.4.4 Temperature test point: For bare terminals, use soldering or other methods to make the thermocouple temperature sensing part and the terminal crimping part in close contact. For pre-insulated terminals, embed the temperature sensing point into the incision of the insulation crimping part to make it in close contact. 4
6.4.5 The test results shall comply with the provisions of Article 5.4.6.5 Thermal cycle test
JB/T2436.1
6.5.1 The wiring of the thermal cycle test is shown in Figure 1. The length of the insulated wire used for connection shall not be less than 1m. The torque of the fastener shall comply with the provisions of Table 2, and the test current value shall be passed according to the thermal cycle time specified in Table 1, and then the power shall be cut off for the same time as one test cycle, and a total of 125 cycles shall be carried out. During this period, the temperature of the terminal measurement point and the temperature .5m away from the connecting wire shall be measured at the end of the 25th cycle and the 125th cycle. 6.5.2 The sample should be placed horizontally, more than 30cm away from the wall, more than 60cm away from the ceiling and the wall, and the distance between the wires should be more than 20rm. 6.5.3 The temperature is measured by thermocouple method, and the wire diameter of the thermoelectric baseline is 0.2~0.3mm. 6.5.4 Temperature measurement point: For bare terminals, use soldering or other methods to make the thermoelectric temperature sensing part closely contact with the terminal connection part; for insulating terminals, embed the temperature sensing point into the inner part of the insulation crimping part to make it closely contact. 6.5.5 The test results shall comply with the provisions of 5.5. See.6 Crimping resistance test
The wiring of the crimping resistance test is shown in Figure 2. The torque of the fastener shall comply with the provisions of Table 2, and the test current value specified in Table 1 shall be passed. The resistance of the terminal and the wire crimping part, as well as the resistance of the adjacent same-length wire (accurate to 10\, shall be measured according to the method of GB5095.2 test 2h, and the resistance change value shall be calculated. When measuring the resistance, a piercing type of tester shall be used, and the measurement time for each measurement shall not exceed 5$. The test results shall comply with the provisions of Articles 5.6, 5.7, 5.8 and 5.10. Figure 2
Note: The dimensions of the TZ type media head test terminal are shown in Appendix C. Resistance change p: RAL×100%
Resistance between A and B after the test:
Ram——Resistance between A and B before the test.
6.7 Salt spray test
Salt spray test method shall be in accordance with CB2423.1 According to the provisions of 7, the samples shall be degreased and cleaned with alcohol or acetone before the test, and placed in a test box at 35 ± 2, with continuous spraying for 24 hours. The test results shall comply with the provisions of Article 5.7. 6.8 Short-time withstand current test
The wiring of the short-time withstand current test is shown in National 1. The test current value (effective value) specified in Table 1 is returned to 2$. The test results shall comply with the provisions of Article 5.8.
6.9 Tensile test
The tensile test is shown in Figure 3. The tensile load specified in Table 1 is applied, and the tensile load shall be consistent with the axial direction of the conductor. The tensile speed is 25mm/min and maintained for 10s.
The core part of the multi-strand wire fixed on the tensile testing machine can be welded to make the tensile force on the wire uniform. The test results shall comply with the provisions of 5.9 Article.
6.10 Tensile torsion test
The intermediate
JB/T2436.1
Insulated sleeve
Fixed device
Tensile torsion test is shown in Figure 4. The length of the wire connected to the test must be at least 80mm longer than h, and the end must be firmly fixed in a vertical position. A weight W is hung on the free end of the wire after passing through the sleeve. The rotating sleeve is fixed on the driving arm of the motor of about 9r/min, and the center track of the sleeve forms a 76mm diameter shape on the horizontal plane. The number of test sets is shown in Table 3. The test results shall comply with the provisions of Article 5.10. Anti-pro,
Salt shaft traction| |tt||Cross-section of wires used for terminals
6.11: Dielectric strength test
Diameter of sleeve hole
Test time
Placement (W)
The dielectric strength test is shown in Figure 5. Wrap metal foil on the surface of the pre-insulated terminal as an electrode, and the terminal connection part needs to be insulated. Then use a 1000V megohmmeter to measure the insulation resistance between the electrode and the wire core, and then apply a 2500V AC test voltage (frequency 50Hz or 60Hz) between the gold chip box and the insulated wire core for 1 minute. The test results should comply with the provisions of 6
of Article 5.11.
6. 12 Ageing test
JB/T2436.1
Gold foil
Fist treatment
Insulated wire
Pregnant wire core
Aging test is to put the pre-insulated end of the crimped wire and the pre-insulated end that has not been crimped into the constant temperature box shown in Table 4 at the same time for d, and then put the end that has not been crimped under normal temperature and humidity for 1 hour before crimping and connecting. The test results should meet the requirements of 5.12.
For pre-insulated terminals whose insulation sleeve material is polyimide resin, before being placed at room temperature and humidity for 1 hour, they should be placed in air at a temperature of 3±2°C and a relative humidity of 85%±5% for 24 hours for quenching and tempering. Table 4
Insulation sleeve material
Polyimide resin
Hard acetylene resin
Insulation sleeve fixity test
Unpressed conductor pre-insulated terminal
Prepressed conductor pre-insulated terminal
121±9
Insulation sleeve fixity test As shown in Figure 6, a static load of 25N is applied to the axial direction of the insulation sleeve of the pre-insulated terminal for 10s. The test results should meet the requirements of Article 5.13.
Fixed end
6. 14 Fire hazard test
The fire hazard test is shown in Figure 7. According to the provisions of GB 5169.5, the test should be carried out in a place not affected by ventilation. Burn the flame core in the middle of the insulating sleeve for 5s and then remove it. After the residual flame is extinguished, burn it again for 5 more at the same position. Burn it three times in total. The test result should meet the requirements of Article 5.14. 6. 15 Oil resistance test
JB/T2436.1
Air inlet
The leakage resistance test is to put the sample into the transformer oil and heat it to 70±3°C. After 4h of temperature, take it out for inspection. The test result should meet the requirements of Article 5.15.
6.16 Recovery test
Recovery test At room temperature, measure the maximum deformation size of the terminal crimping part, as shown in Figure 8, then put the sample into the constant oil box at the temperature specified in Table 5, take it out after 1 hour, place it at room temperature for 30 minutes, and then measure the size at the same position. The test results should meet the requirements of Article 5.16.
Insulation
Pre-shrinkage material
Test temperature
Low-temperature positive connection test
Insulation sleeve
Hard vinyl resin
The largest deformation part of the positive connection
Deep acylated resin
100±3
The low-temperature crimping test is to place the pre-insulated terminal, crimping tool and wire at a constant temperature of -20±2C for 1 hour, then take them out and make a joint connection within 3 minutes. Then place them at a constant temperature of -55±2 for 1 hour, and then take them out for inspection. The test results should meet 5.17. Inspection rules
Inspection is divided into type inspection, periodic inspection and factory inspection. 7.1 Type inspection
The purpose of type inspection is to verify whether the design and performance of the terminal products meet the requirements of the standard. Type inspection shall be carried out in the following cases: when the trial samples are just completed; when the product performance is affected by the change of design and process; b
When the national quality supervision department puts forward the type inspection requirements. 8
JB/T2436.1
For the type inspection grouping items, sequence and number of samples for each specification of terminal, please refer to Table 6. Table 6
Inspection group
Terminal
Pre-insulated terminal
Verification items
Appearance and size inspection
Coating thickness inspection
Temperature rise test
Heat cycle test
Salt spray test
Short time withstand current test
Tensile test
Tensile bending test
Tensile resistance test
Appearance and size inspection
Coating thickness inspection
Oil resistance test
Aging resistance test
Wet rise test
Heat cycle test
Low-voltage crimping test
Short time withstand current test Current test
Tensile strength test
Tensile distortion test
Tensile strength test
Insulation sleeve quality test
Fire hazard test
Reconciliation test
Inspection process
Appearance and dimension inspection
bCoating thickness inspection
Temperature rise test
bHeat cycle test
Positive resistance test
1Salt spray test
Jade resistance test
Compression resistance test
hShort-time withstand current test
Compression current test
Pull square test
Compression resistance test
b Tensile torsion test
Crimp resistance test
Tension test
a External gauge and size inspection
b Metal thickness inspection
a Sand test
b Dielectric strength test
Aging test
b Dielectric strength test
Temperature rise test
b Thermal cycle test
a Low temperature crimping test
h Dielectric strength test
Short time withstand current test
X Tensile test
1 Tensile torsion test
b Strip pulling test
These test basis
7.1.2 Only when all the test items in the type inspection are passed can it be considered that the type inspection of the terminal of this specification is qualified. Only products that have passed the type inspection can be identified. If 2 out of 3 samples in each group fail, it is considered that the test is unqualified. If 1 sample fails, it is allowed to double the test. If the retest still fails, the specification is judged to have failed the type inspection. 7.2
Periodic inspection
Periodic inspection is to verify whether the finalized product can maintain stable performance during the production process. The finalized product should be inspected once every 5 years. The samples for regular inspection must be randomly selected from the products that have passed the factory inspection. 7.2.1 The regular inspection items for each specification of the end are shown in Table 7. Table 7
Test items
Crimp resistance test
Short-time variable current test
Tensile torsion test
Major hazard test
Resilience test
Temperature rise test
Bare terminal
Pre-insulated terminal
Test basis
Unqualified category
Sample size
7.2.2 Regular inspection shall be carried out in accordance with the provisions of CB2829. Use monthly sampling plan.
Discrimination level
7.2.3 If one test fails in the periodic inspection, the product of this specification shall be judged to have failed the periodic inspection. 7.3 Delivery inspection
7.3.1 Before delivery, the product shall be inspected and can only be delivered after passing the inspection. See Table 8 for inspection items.
Inspection items
Visual and dimensional inspection
Thickness test
Dielectric property test
Bare terminal||t t||Pre-test definition
Test basis
Unsuitable
Test level
Judgment array
7.3.2 According to the provisions of CB2B28, adopt the first or second sampling plan. When the product is judged as unqualified, it is allowed to be screened and the unqualified items are re-registered according to the stricter sampling plan. If it is still unqualified, it is judged to be unqualified for factory inspection. 8 Packaging, marking, transportation and storage
8.1 The packaging must be able to prevent the product from being Products are protected from damage during transportation and have the functions of rain and moisture resistance. The packaging should generally contain a packing list, a certificate of conformity and an instruction manual.
Product packaging markings should be clear, neat and durable. The markings should include: manufacturer name or trademark:
product name, model and quantity:
package dimensions, net weight and gross weight:
destination station (port) and the name of the consignor and consignor, "handle with care", "keep away from rain and moisture" and "packaging year and month", etc. 8. 2 Environmental conditions for transportation and storage of terminal products: upper limit of high temperature +55℃, lower limit of low temperature -40℃, the drop height shall not exceed 250mm, and the rest shall comply with the provisions of Article 10.5 of Gm1497.
A1 Preparation of product model
A2 Category
Product classification number
Product name
Needle type
Connection type
JB/T2436.1
Preparation of product model and category code
(Supplement)
Characteristic code (see Table A1)
Main parameters (see Table A1)||tt ||Design number
Product series code (see Table A1)
Terminal product category code
Series code
Main data
Rated wire area/fastener diameter
Rated wire area/fastener diameter
Rated wire area/fastener diameter
Rated wire area/fastener diameter
Rated wire area/pin diameter × pin length
Rated wire section/length
Feature code
JT Insulation sleeve
\TK Insulation sleeve1
For the type inspection grouping items, sequence and number of samples for each specification of terminal, see Table 6. Table 6
Inspection group
Pre-insulated terminal
Verification items
Appearance and size inspection
Coating thickness inspection
Temperature rise test
Heat cycle test
Salt spray test
Short time withstand current test
Tensile test
Tensile bending test
Tensile resistance test
Appearance and size inspection
Coating thickness inspection
Oil resistance test
Aging resistance test
Wet rise test
Heat cycle test
Low pressure connection test
Short time withstand current test Current test
Tensile strength test
Tensile distortion test
Tensile strength test
Insulation sleeve quality test
Fire hazard test
Reconciliation test
Inspection process
Appearance and dimension inspection
bCoating thickness inspection
Temperature rise test
bHeat cycle test
Positive resistance test
1Salt spray test
Jade resistance test
Compression resistance test
hShort-time withstand current test
Compression current test
Pull square test
Compression resistance test
b Tensile torsion test
Crimp resistance test
Tension test
a External gauge and size inspection
b Metal thickness inspection
a Sand test
b Dielectric strength test
Aging test
b Dielectric strength test
Temperature rise testWww.bzxZ.net
b Thermal cycle test
a Low temperature crimping test
h Dielectric strength test
Short time withstand current test
X Tensile test
1 Tensile torsion test
b Strip pulling test
These test basis
7.1.2 Only when all the test items in the type inspection are passed can it be considered that the type inspection of the terminal of this specification is qualified. Only products that have passed the type inspection can be identified. If 2 out of 3 samples in each group fail, it is considered that the test is unqualified. If 1 sample fails, it is allowed to double the test. If the retest still fails, the specification is judged to have failed the type inspection. 7.2
Periodic inspection
Periodic inspection is to verify whether the finalized product can maintain stable performance during the production process. The finalized product should be inspected once every 5 years. The samples for regular inspection must be randomly selected from the products that have passed the factory inspection. 7.2.1 The regular inspection items for each specification of the end are shown in Table 7. Table 7
Test items
Crimp resistance test
Short-time variable current test
Tensile torsion test
Major hazard test
Resilience test
Temperature rise test
Bare terminal
Pre-insulated terminal
Test basis
Unqualified category
Sample size
7.2.2 Regular inspection shall be carried out in accordance with the provisions of CB2829. Use monthly sampling plan.
Discrimination level
7.2.3 If one test fails in the periodic inspection, the product of this specification shall be judged to have failed the periodic inspection. 7.3 Delivery inspection
7.3.1 Before delivery, the product shall be inspected and can only be delivered after passing the inspection. See Table 8 for inspection items.
Inspection items
Visual and dimensional inspection
Thickness test
Dielectric property test
Bare terminal||t t||Pre-test definition
Test basis
Unsuitable
Test level
Judgment array
7.3.2 According to the provisions of CB2B28, adopt the first or second sampling plan. When the product is judged as unqualified, it is allowed to be screened and the unqualified items are re-registered according to the stricter sampling plan. If it is still unqualified, it is judged to be unqualified for factory inspection. 8 Packaging, marking, transportation and storage
8.1 The packaging must be able to prevent the product from being Products are protected from damage during transportation and have the functions of rain and moisture resistance. The packaging should generally contain a packing list, a certificate of conformity and an instruction manual.
Product packaging markings should be clear, neat and durable. The markings should include: manufacturer name or trademark:
product name, model and quantity:
package dimensions, net weight and gross weight:
destination station (port) and the name of the consignor and consignor, "handle with care", "keep away from rain and moisture" and "packaging year and month", etc. 8. 2 Environmental conditions for transportation and storage of terminal products: upper limit of high temperature +55℃, lower limit of low temperature -40℃, the drop height shall not exceed 250mm, and the rest shall comply with the provisions of Article 10.5 of Gm1497.
A1 Preparation of product model
A2 Category
Product classification number
Product name
Needle type
Connection type
JB/T2436.1
Preparation of product model and category code
(Supplement)
Characteristic code (see Table A1)
Main parameters (see Table A1)||tt ||Design number
Product series code (see Table A1)
Terminal product category code
Series code
Main data
Rated wire area/fastener diameter
Rated wire area/fastener diameter
Rated wire area/fastener diameter
Rated wire area/fastener diameter
Rated wire area/pin diameter × pin length
Rated wire section/length
Feature code
JT Insulation sleeve
\TK Insulation sleeve1
For the type inspection grouping items, sequence and number of samples for each specification of terminal, see Table 6. Table 6
Inspection group
Pre-insulated terminal
Verification items
Appearance and size inspection
Coating thickness inspection
Temperature rise test
Heat cycle test
Salt spray test
Short time withstand current test
Tensile test
Tensile bending test
Tensile resistance test
Appearance and size inspection
Coating thickness inspection
Oil resistance test
Aging resistance test
Wet rise test
Heat cycle test
Low pressure connection test
Short time withstand current test Current test
Tensile strength test
Tensile distortion test
Tensile strength test
Insulation sleeve quality test
Fire hazard test
Reconciliation test
Inspection process
Appearance and dimension inspection
bCoating thickness inspection
Temperature rise test
bHeat cycle test
Positive resistance test
1Salt spray test
Jade resistance test
Compression resistance test
hShort-time withstand current test
Compression current test
Pull square test
Compression resistance test
b Tensile torsion test
Crimp resistance test
Tension test
a External gauge and size inspection
b Metal thickness inspection
a Sand test
b Dielectric strength test
Aging test
b Dielectric strength test
Temperature rise test
b Thermal cycle test
a Low temperature crimping test
h Dielectric strength test
Short time withstand current test
X Tensile test
1 Tensile torsion test
b Strip pulling test
These test basis
7.1.2 Only when all the test items in the type inspection are passed can it be considered that the type inspection of the terminal of this specification is qualified. Only products that have passed the type inspection can be identified. If 2 out of 3 samples in each group fail, it is considered that the test is unqualified. If 1 sample fails, it is allowed to double the test. If the retest still fails, the specification is judged to have failed the type inspection. 7.2
Periodic inspection
Periodic inspection is to verify whether the finalized product can maintain stable performance during the production process. The finalized product should be inspected once every 5 years. The samples for regular inspection must be randomly selected from the products that have passed the factory inspection. 7.2.1 The regular inspection items for each specification of the end are shown in Table 7. Table 7
Test items
Crimp resistance test
Short-time variable current test
Tensile torsion test
Major hazard test
Resilience test
Temperature rise test
Bare terminal
Pre-insulated terminal
Test basis
Unqualified category
Sample size
7.2.2 Regular inspection shall be carried out in accordance with the provisions of CB2829. Use monthly sampling plan.
Discrimination level
7.2.3 If one test fails in the periodic inspection, the product of this specification shall be judged to have failed the periodic inspection. 7.3 Delivery inspection
7.3.1 Before delivery, the product shall be inspected and can only be delivered after passing the inspection. See Table 8 for inspection items.
Inspection items
Visual and dimensional inspection
Thickness test
Dielectric property test
Bare terminal||t t||Pre-test definition
Test basis
Unsuitable
Test level
Judgment array
7.3.2 According to the provisions of CB2B28, adopt the first or second sampling plan. When the product is judged as unqualified, it is allowed to be screened and the unqualified items are re-registered according to the stricter sampling plan. If it is still unqualified, it is judged to be unqualified for factory inspection. 8 Packaging, marking, transportation and storage
8.1 The packaging must be able to prevent the product from being Products are protected from damage during transportation and have the functions of rain and moisture resistance. The packaging should generally contain a packing list, a certificate of conformity and an instruction manual.
Product packaging markings should be clear, neat and durable. The markings should include: manufacturer name or trademark:
product name, model and quantity:
package dimensions, net weight and gross weight:
destination station (port) and the name of the consignor and consignor, "handle with care", "keep away from rain and moisture" and "packaging year and month", etc. 8. 2 Environmental conditions for transportation and storage of terminal products: upper limit of high temperature +55℃, lower limit of low temperature -40℃, the drop height shall not exceed 250mm, and the rest shall comply with the provisions of Article 10.5 of Gm1497.
A1 Preparation of product model
A2 Category
Product classification number
Product name
Needle type
Connection type
JB/T2436.1
Preparation of product model and category code
(Supplement)
Characteristic code (see Table A1)
Main parameters (see Table A1)||tt ||Design number
Product series code (see Table A1)
Terminal product category code
Series code
Main data
Rated wire area/fastener diameter
Rated wire area/fastener diameter
Rated wire area/fastener diameter
Rated wire area/fastener diameter
Rated wire area/pin diameter × pin length
Rated wire section/length
Feature code
JT Insulation sleeve
\TK Insulation sleeve1 The packaging must be able to prevent the product from being damaged during transportation and have the function of rainproof and moistureproof. The packaging should generally contain a packing list, a certificate of conformity and an instruction manual.
The packaging mark of the product should be clear, neat and durable. The items of the mark should include: manufacturer name or trademark:
product name, model and quantity:
package dimensions, net weight and gross weight:
departure station (port) and the name of the consignor and consignor, "handle with care", "do not expose to rain or moisture" and "year and month of packaging", etc. 8. 2 Environmental conditions for transportation and storage of terminal products: upper limit of high temperature +55℃, lower limit of low temperature -40℃, the drop height shall not exceed 250mm, and the rest shall comply with the provisions of Article 10.5 of Gm1497.
A1 Preparation of product model
A2 Category
Product classification number
Product name
Needle type
Connection type
JB/T2436.1
Preparation of product model and category code
(Supplement)
Characteristic code (see Table A1)
Main parameters (see Table A1)||tt ||Design number
Product series code (see Table A1)
Terminal product category code
Series code
Main data
Rated wire area/fastener diameter
Rated wire area/fastener diameter
Rated wire area/fastener diameter
Rated wire area/fastener diameter
Rated wire area/pin diameter × pin length
Rated wire section/length
Feature code
JT Insulation sleeve
\TK Insulation sleeve1 The packaging must be able to prevent the product from being damaged during transportation and have the function of rainproof and moistureproof. The packaging should generally contain a packing list, a certificate of conformity and an instruction manual.
The packaging mark of the product should be clear, neat and durable. The items of the mark should include: manufacturer name or trademark:
product name, model and quantity:
package dimensions, net weight and gross weight:
departure station (port) and the name of the consignor and consignor, "handle with care", "do not expose to rain or moisture" and "year and month of packaging", etc. 8. 2 Environmental conditions for transportation and storage of terminal products: upper limit of high temperature +55℃, lower limit of low temperature -40℃, the drop height shall not exceed 250mm, and the rest shall comply with the provisions of Article 10.5 of Gm1497.
A1 Preparation of product model
A2 Category
Product classification number
Product name
Needle type
Connection type
JB/T2436.1
Preparation of product model and category code
(Supplement)
Characteristic code (see Table A1)
Main parameters (see Table A1)||tt ||Design number
Product series code (see Table A1)
Terminal product category code
Series code
Main data
Rated wire area/fastener diameter
Rated wire area/fastener diameter
Rated wire area/fastener diameter
Rated wire area/fastener diameter
Rated wire area/pin diameter × pin length
Rated wire section/length
Feature code
JT Insulation sleeve
\TK Insulation sleeve
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