This standard specifies the model, specification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of TG1 type tubular terminals. This standard is applicable to the tubular terminals that are crimped to the copper conductor part after the insulation layer is stripped off the wire end when 0.5-6mm multi-strand copper wire is connected to the terminal. JB/T 6330-1992 TG1 type tubular terminals JB/T6330-1992 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
TG1 Tubular Terminal
Subject Content and Applicable Scope
JB/T6330—1992
This standard specifies the model, specification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of TG1 tubular terminals.
This standard applies to the tubular terminals that are crimped to the copper conductor part after the insulation layer is stripped off the stranded wire end when 0.5~6mm* multi-strand round copper wire is connected to the terminal.
2 Reference standards
GB2828
GB2829
Remote inspection counting sampling procedures and sampling tables Periodic inspection counting sampling procedures and sampling tables ZBK62002 Method for compiling product models of general accessories for electrical equipment JB2836
JB3975
3 Product classification
3.1 Model
Electroplating and chemical coating of electrical products Basic standard for terminal blocks for round copper wires
The compilation of tubular terminal models must comply with the provisions of ZBK62002. 3.2 Specifications and dimensions
Specifications and dimensions are shown in Figure 1 and Table 1.
Technical requirements
TG1—0.75/6
TG1-1/6
TG1-1/10
TG1-1.5/7
TG1-1.5/10
TG1-2.5/7
TG1-2.5/12
TG1-4/9
TG1-4/12
TG1-6/10
TG1-6/12
TG1-6/15
Connecting conductor
Wire whip surface
JB/T6330—1992
Tubular ends must be manufactured in accordance with product drawings and design documents approved through prescribed procedures. 4.1 General requirements
4.1.1 The surface roughness and coating appearance quality of the tubular terminal shall meet the requirements of the drawings and design documents. There shall be no defects such as burrs, coating shedding, corrosion marks, etc. on the surface of the terminal.
4.1.2 The dimensions of the tubular terminal must comply with the provisions of this standard and the drawings. 4.2 Performance requirements
The tubular terminal is generally crimped with one wire, but it is also allowed to crimp two multi-strand round copper stranded wires with the same cross-section at the same time. 4.2.1 Tensile strength
Perform a tensile test in accordance with 5.3.1. During the test, the tubular terminal shall not be pulled off the wire, and the wire shall not be broken at the crimping point of the tubular terminal. After the test, the tubular terminal or the wire is allowed to be damaged, but it shall not affect normal use. 4.2.2 Temperature rise
Perform a temperature rise test on the tubular terminal in accordance with 5.3.2. The temperature rise test current shall be as specified in Table 3, and the temperature rise value shall not exceed 45K. 4.2.3 Voltage drop
Measure the voltage drop according to 5.3.3. The voltage drop before the temperature rise test shall not exceed 3.2mV, and the voltage drop after the temperature rise test shall not exceed 1.5 times the value measured before the test.
Test method
5.1 Test preparation
5.1.1Select the corresponding multi-strand round steel stranded wire according to the specifications of the tubular end. When two stranded wires with the same cross-section are crimped in the tubular end, the two conductors are matched with the board
Matched tubular end model
JB/T6330—1992
5.1.2Strip the insulation layer of the 1m long wire to a length of 3 times the length of the tubular end, put on the tubular end and place it in the corresponding jaws of the special crimping pliers for crimping.
5.1.3During the crimping process, the pliers are in a self-locking state, and the jaws cannot be opened if the crimping is not in place. There should be no cracks on the surface of the crimped tubular end.
There are 6 1m long wires for temperature rise test, of which 4 must have both ends crimped with tubular ends, and 2 must have only one end crimped with tubular ends. 5.1.4
5.1.5One end of the 1m long wire for tensile test is crimped with a tubular end: the other end must be tinned or other methods are used to make the multiple strands become one. So that each strand is evenly stressed.
5.2 Dimension and appearance inspection
5.2.1 The dimensions are inspected with a vernier caliper, and the appearance is inspected visually (should comply with the provisions of 4.1.1 and 4.1.2). 5.2.2 The coating thickness is inspected according to the method specified in JB2836 (should comply with the requirements of the drawing). 5.3 Performance test
5.3.1 Tensile test
5.3.1.1 Place the wire with the crimped tubular end on the test device in Figure 2. The opening size of the test device fixing the tubular terminal plate shall comply with the provisions of Table 3.
Tubular terminal fixing plate
Torsion salt can be raised and lowered
Model specification
TG1-0.5/6
TG10.75/6
TGI-1/
TG1-4/口
TG1-6/口
JB/T6330-1992
Tensile test
Device size
Tensile test shall be carried out along the axis direction of the conductor according to the tensile value specified in Table 3 for 1 minute. 5.3.1.2
The provisions of Article 4.2.1 shall be met during and after the test. 5.3.2 Temperature rise test
Tensile force
5.3.2.1 The temperature rise test is only carried out on the four types of tubular terminals: TG1-1.5, TG1-2.5, TG1-4, and TG1-6. Temperature rise test
The temperature rise test is connected as specified in Figure 3, and the tubular terminal is tightened to the barrel terminal of the basic terminal block according to the torque specified in Table 4. 5.3.2.2
The test is carried out in accordance with the provisions of 8.3.4.3 to 8.3.4.7 of JB3975 (it shall comply with the provisions of 4.2.2). Voltage drop measurement point
Temperature measurement point
Voltage drop measurement point
Temperature measurement and voltage drop measurement
Terminal
Tube end
5.3.3 Voltage drop measurement
Thread diameter
JB/T6330—1992
Torque
Voltage drop measurement As shown in Figure 3, the measurement point must be on the conductor and must not touch the tubular end. 5.3.3.1
5.3.3.2 Measure in accordance with Article 8.3.3 of JB3975 (should comply with Article 4.2.3). 6
Inspection rules
6.1 Inspection classification
It is divided into factory inspection, type inspection and periodic inspection. 6.2 Factory inspection
Products must be inspected by the inspection department before leaving the factory, and can only leave the factory after passing the inspection. 6.2.1 According to the provisions of GB2828, a single or double sampling plan shall be adopted. The grouping, items and sequence of each specification product inspection shall comply with the provisions of Table 5.
Name of inspection item
Appearance inspection
Dimension inspection
Coating thickness inspection
Unqualified
6.2.2 When a product is judged as unqualified, screening is allowed, and then the unqualified items are re-inspected according to the stricter sampling plan. If it is still unqualified, it is judged as unqualified for factory inspection. 6.3 Type inspection
The purpose of type inspection is to verify whether the design and performance of the tubular end meet the requirements of the standard. Type inspection shall be conducted in the following cases: newly completed trial samples;
When the design performance or product quality is affected by the change of process, material or structure; c.
When the national quality supervision agency puts forward the requirement for type inspection. 6.3.1
Type inspection rules
Type inspection is considered qualified only when all samples are inspected in sequence. Only products that have passed the type inspection can be identified. 6.3.2 Type inspection itemswww.bzxz.net
Inspection is conducted in groups, and each group uses new samples. The type inspection groups, items, sequence and number of samples shall comply with the provisions of Table 6. 6.4 Periodic inspection
Periodic inspection is to verify
6.4.1 Periodic inspection rules
JB/T6330—1992
Products used for periodic inspection must be randomly selected from batches of products that have passed the factory inspection. Periodic inspection shall be conducted in accordance with the provisions of GB2829 and a single sampling plan shall be adopted.
During periodic inspection, if one inspection group fails, it is judged as periodic inspection failure. Table 6
Inspection group
Inspection items
Appearance inspection
Dimension inspection
Coating thickness inspection
Tensile test
Temperature rise test (measure voltage drop before and after the test)
Test method
Articles
Determine according to actual conditions
The length of the tubular end specimen shall be the shortest one, and other lengths may also be used. For example, TG1-2.5/7 may use TG1-2.5/12 replaces TG1-1.5/7~TG16/10 four kinds of tubular ends. The number of tensile test specimens is 6 each: 3 for crimping one wire and 3 for crimping two wires.
TG1-1.5/7~TG1-6/10 four kinds of tubular ends, the number of temperature rise test specimens is 20 each: 10 for crimping one wire and 10 for crimping two wires.
6.4.2 Periodic inspection items
Inspection is carried out in groups, and each group uses new specimens. The periodic inspection groups, items, sequence and number of specimens shall comply with the provisions of Table 7. Table 7
Inspection items
Inspection groups
Tensile test
Temperature rise test (voltage measurement before and after the test
Test method
Articles
Unqualified categories
Judgment level
Sample size
Note: The sample size of the tensile and coil rise tests TG1-1.5, TG1-2.5 and TG1-5 is 20 pieces each: 10 pieces for crimping one wire and 10 pieces for crimping two wires.
Packaging, transportation and storage
7.1 Packaging
The packaging of the product must be able to prevent damage during transportation and be rainproof or moisture-proof. The packaging box should generally contain a packing list, certificate of conformity and instruction manual.
The packaging mark should be clear and neat, and ensure that it will not be damaged due to transportation or storage. The mold shed is not clear after a long time. Its mark should generally include the following contents: product name, model and quantity:
Box size (length × width × quotient);
Net weight and gross weight;
Arrival station (port) and receiving unit;
Departure station (port) and shipping unit
7.2 Transportation and storage
Environmental conditions for transportation and storage:
JB/T6330-1992
The lower limit of low temperature is -40℃, the upper limit of high temperature is +55℃, the free fall height does not exceed 250mm, and the rest should comply with the provisions of Article 10.2 of JB3975.
Additional instructions:
This standard is proposed and managed by Tianjin Electric Drive Design Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by Chengdu Low Voltage Electrical Appliance Factory. The main drafters of this standard are Zou Xiuyun and Liu Lin.
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