JB/T 6213.1-1992 Flexible cables and cords for connecting motor windings Part 1 General provisions
Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T 6213.1-1992
Flexible Cables and Cords for Connecting Motor Windings
Part 1 General Provisions
Published on June 16, 1992
Implementation by the Ministry of Machinery and Electronics Industry of the People's Republic of China on January 1, 1993
Mechanical Industry Standard of the People's Republic of China
Flexible Cables and Cords for Connecting Motor Windings
Part 1
, General Provisions
Subject Content and Scope of Application
JB/T6213.1-1992
This standard specifies the product classification, technical requirements and test methods, marking and packaging of flexible cables and cords for connecting motor windings. The technical requirements for flexible cables and cords for connecting motor windings of various models are specified in JB6213.2, JB6213.3 and other parts. This standard applies to motor winding lead-in flexible cables and cords that are directly and permanently connected to the motor winding and lead out of the housing or the winding is connected to the terminal on the motor housing.
2 Reference standards
GB2900.10
GB2951
GB3048
GB3956
GB4910
GB6995
GB7594
GB8815
JB1256
Electrical terminology Part 10 Wires and cables Wires and cables Physical and mechanical properties test methods Wires and cables Electrical properties test methods
Electrical equipment Wires and cables Copper and aluminum conductive wire core tinned round copper wire
Wire and cable identification and marking methods
Wire and cable rubber insulation and Rubber sheath
Soft polyvinyl fluoride materials for wires and cables
Part 2 Flexible cables and cords with a continuous conductor temperature of 70°C Part 3
Part 4
Part 5
Flexible cables and cords with a continuous conductor temperature of 90°C Flexible cables and cords with a continuous conductor temperature of 180°C Freon-resistant cords
6020 polyester film
3 Terms, symbols, and codes
3.1 Terms
Rated voltage
The rated voltage of a cable (wire) refers to the reference voltage used for the design and electrical performance test of the cable (wire), which is expressed in U. and the unit is V. U. is the effective value of the voltage between any insulated conductor and the "ground" (surrounding dielectric, metal casing). When the cable (wire) is used in a DC system, the voltage of the system to the ground should not be greater than 1.5 times the rated voltage of the cable (wire). The maximum allowable excess value of the AC system working voltage is 10% of the rated voltage of the cable (wire). The rated voltage of the cable (wire) is marked with U. Cables (wires) with rated voltages of 500, 1000, 3000, and 6000V are suitable for motors with AC rated voltages of 500 (660), 1000 (1140), 3000 (3300), and 6000 (6600)V, respectively. 3.2 Code
3.2.1 Series code
3.2.2 Classification by material
Approved by the Ministry of Machinery and Electronics Industry on June 16, 1992 and implemented on January 1, 1993
3.2.2.1 Conductor material code
Steel conductor
3.2.2.2 Insulation material code
Polyethylene····
Butane polyoxyethylene compound
Natural styrene-butadiene rubber||tt| |Chlorosulfonated polyethylene
EPDM rubber
Silicone rubber
Polyester film (fiber)
Yufenofluorinated ethylene propylene
3.2.2.3 Bag material code
Ningjing rubber
Chloroprene rubber+
Chlorosulfonated polyethylene
Chloral rubber
Product marking and marking example
4.1 Product marking
4.2 Marking example
JB/T 6213.1—1992
·-F46
Nominal cross section
Rated voltage
Sheath code
Insulation code
Series code
4.2.1 Rated voltage 1000V, 6mm polyoxyethylene insulation (red) lead wire for motor is represented by: JV—10006 red JB6213.2-92
4.2.2 Rated voltage 6000V, 35mm? EPDM insulation, chlorosulfonated ethylene sheath (black) lead wire for motor is represented by: For: JEH600035 black JB6213.392
4.2.3 Motor rated voltage 500V, 1mm2 polyester film (fiber) insulation freon-resistant motor lead wire is expressed as: JZ5001JB6213.592
Technical requirements
5.1 Materials
5.1,1 Insulation polyester fiber shall comply with the provisions of Appendix B of this standard, 2
JB/T6213.11992
Insulation polyperfluoroethylene propylene resin shall comply with the provisions of Appendix C of this standard. 5.1.2
5.2 Conductor
5.2.1 The conductor shall comply with the provisions of GB3956. Unless otherwise specified in subsequent standards, the conductor structure is as specified in Table 1. Other conductor structures are allowed to be used according to the agreement between the supply and demand parties. Table
Nominal cross section
Body structure
Number of wires/nominal diameter of single wire
1221/0.50
Approximate outer diameter of conductor
Conductor resistance at 20℃
Note: The number of single wires is allowed to be greater than the number listed in the table. The nominal diameter of the single wire is determined according to the nominal cutting surface and the corresponding number of wires. n/km
Tinned pin core
5.2.2 The single wires of rubber insulated cable (wire) conductors must be tinned, and the single wires of plastic insulated cable (wire) conductors are not allowed to be tinned. The surface of the conductor should be smooth, free of oil stains, burrs, sharp edges and protrusions that damage the insulation. 5.2.3
The surface of the conductor is allowed to be coated with an isolation layer made of suitable materials. 5. 2. 4
5.3 Insulation
The performance of the insulation should meet the following requirements.
5.3.1.1 PVC insulated cables (wires) with a maximum continuous operating conductor temperature of 70°C shall use corresponding insulating materials that comply with the provisions of GB8815, and the insulation of the finished cables (wires) shall comply with the provisions of Table 2, nitrile-butadiene-vinyl composite insulated cables (wires) shall comply with the provisions of Table 2, and rubber insulated nitrile sheathed (or chloroprene sheathed) cables (wires) shall comply with the provisions of GB7594.2XJ-00A rubber. 5.3.1.2 Ethylene-propylene insulated cables (wires) with a maximum continuous operating conductor temperature of 90°C shall comply with the provisions of GB7594.8XJ-30A rubber, and chlorosulfonated polyethylene insulated cables (wires) shall comply with the provisions of Table 2. 3
Mechanical properties before aging
Tensile strength
Elongation at break
Mechanical properties after aging
Aging conditions
Change rate of tensile strength
Change rate of elongation at break
JB/T 6213.11992
Polyethylene
Nitrile polyvinyl fluoride compound
Fluorosulfonated polyethylene
100±2
Silicone rubber insulated cables (wires) with a maximum conductor temperature of 180°C for continuous operation shall comply with GB7594.11XJ-80A type. The rubber insulation shall be tightly wrapped around the conductor and shall be easily shaved off without damaging the conductor or tinning layer. The insulation surface shall be flat and have uniform color. 5.3.2
The average thickness of the insulation shall not be less than the specified nominal value, and the thickness of the thinnest point shall not be less than 90% of the nominal value minus 0.1mm. 5.3.3
, the insulated core shall be subjected to the spark test specified in GB3048.9 or GB3048.13 as an intermediate inspection. The voltage of the spark test is as follows: 5. 3. 4
Nominal thickness of insulation
>0.5~1. 0
>1.5~2. 0
AC (50Hz)
Test voltage
5.3.5 When the physical and mechanical properties of the cable (wire) extruded at one time are tested, the insulation and the sheath shall be separated. If they cannot be separated, it is allowed to use the single extruded insulation core for testing, and it is also allowed to remove one layer of the insulation sheath that is bonded together by cutting or grinding to make a test piece for testing. 5.3.6 The color of insulation shall be determined by agreement between the supplier and the buyer. 5.4 Sheath
5.4.1 The performance of the sheath shall meet the following requirements. 5.4.1.1 The rubber insulated chloroprene sheathed cable (wire) with a continuous operating conductor maximum temperature of 70°C shall comply with the provisions of GB7594.5XH-01A rubber, and the rubber insulated nitrile sheathed cable (wire) shall comply with the provisions of Table 4. 5.4.1.2 The EPDM insulated chlorosulfonated polyethylene sheathed cable (wire) with a continuous operating conductor maximum temperature of 90°C shall comply with the provisions of GB7594.10XH-31A rubber, and the EPDM insulated chloroether sheathed cable (wire) shall comply with the provisions of Table 5. The average value of the sheath thickness shall not be less than the specified nominal value, and the thickness of the thinnest point shall not be less than 85% of the nominal value minus 0.15.4.2
JB/T6213.1-1992
Mechanical properties before aging
Tensile strength Strength
Elongation at break
Mechanical properties after aging
Aging conditions
Change rate of tensile strength
Change rate of elongation at break
Mechanical properties before aging
Tensile strength
Elongation at break
Mechanical properties after aging
Aging conditions
Change rate of tensile strength
Change rate of elongation at break
5.4.3 The surface of the sheath should be flat and uniform in color. The color of the sheath should preferably be black. Refers to
130±2
5.4.4 Cables (wires) with insulation and sheath extruded at one time should be subjected to the spark test specified in GB3048.9 or GB3048.13. The voltage of the spark test is shown in Table 3.
5.5 Finished cables (wires)
5.5.1 The structural dimensions of finished cables (wires) shall comply with the provisions of the subsequent product standards. 5.5.2 The conductor resistance of finished cables (wires) shall comply with the provisions of Table 1. 5.5,3 Finished cables (wires) shall be subjected to the power frequency voltage test specified in Article 6.4 of this standard. As a routine test, cables (wires) with a rated voltage of 3000V and below may be subjected to spark tests instead of immersion voltage tests. All specimens shall not be punctured. 5.5.4 Finished cables (wires) shall be subjected to the bending test specified in Article 6.5 of this standard. After bending, the insulation or sheath of all specimens shall not show cracks or other damage visible to the naked eye. All specimens shall not be punctured. 5.5.5
The finished cable (wire) shall be subjected to the thermal effect test specified in Article 6.6 of this standard. After the thermal effect test and bending, the insulation or sheath of all samples shall not show any cracking or other damage visible to the normal eye, and all samples shall not be punctured. 5.5.6 The finished cable (wire) shall be subjected to the solvent resistance test specified in Article 6.7 of this standard. After the solvent resistance test and bending, the insulation or sheath of all samples shall not show any swelling, cracking or other damage visible to the normal eye, and all samples shall not be punctured. 5.5.7 The finished cable (wire) shall be subjected to the impregnation agent resistance test specified in Article 6.8 of this standard. After the impregnation agent resistance test and bending, the insulation or sheath of all samples shall not show any swelling, cracking or other damage visible to the normal eye, and all samples shall not be punctured. All specimens shall not be punctured. 5.5.8
Delivery lengthwwW.bzxz.Net
The delivery length of cables (wires) with a nominal cross-section of 35mm and below and cables (wires) with a nominal cross-section of 35mm2 and above shall not be less than 50m
The delivery length shall not be less than 20m
The number of short-segment deliveries shall not exceed 10% of the total length of delivery; the measurement error of the length shall not exceed 0.5%; based on the agreement between the two parties, delivery of products of any length is allowed. The length of the short segment shall not be less than 5m
The length of the short segment shall not be less than 2m;
Test method
6.1 General description
6.1.1 Room temperature
The room temperature specified in this standard is 23±5°C, 6.1.2 Number of specimens
JB/T 6213.1-1992
Unless otherwise specified, the number of specimens for each test in this standard is 3. 6.2 The structural dimension inspection of finished cables (wires) shall be carried out in accordance with the provisions of GB2951.1~2951.4. 6.3
The conductor resistance test of finished cables (wires) shall be carried out in accordance with the provisions of GB3048.4.
6.4 Power frequency voltage test of finished cables (wires) 6.4.1 Specimen length
The specimen length for type tests shall not be less than 5m, and routine tests shall be carried out on finished cables (wires) of manufacturing length. 6.4.2 The test equipment shall comply with the provisions of GB3048.8. 6.4.3 Test steps
Immerse the specimen in room temperature water with both ends exposed to the water surface and immerse in water for 12 h later, apply the voltage specified in Table 6 and maintain for 5 min. Table 6
Rated voltage of cable (wire)
Bending test of finished cable (wire)
The test shall be carried out in accordance with the provisions of Appendix A of this standard
6.6 Thermal effect test of finished cable (wire)6.6.1 Preparation of specimens, test equipment shall be in accordance with the requirements of Appendix A of this standard, 6.6.2 Test steps
Preheat the specimen at the temperature specified in Appendix A of this standard for 48h.
Testing electric jade
Take out the specimen, and after the specimen cools down, carry out bending and withstand voltage tests in accordance with the provisions of Appendix A. Solvent resistance test of finished cable (wire), 6.7
Preparation of specimens, test equipment shall be in accordance with the requirements of Appendix A of this standard. 6.7.1
6.7.2 Test steps:
Preheat the sample at the temperature specified in Appendix A of this standard for 24 hours, then immerse the sample in xylene at room temperature for 1 hour, remove the sample from the solvent, let it dry at room temperature for 15 minutes, then bake it at the above temperature for 24 hours, and cool it to room temperature for 1 hour;
Perform bending and voltage resistance tests as specified in Appendix A of this standard. b.
6.8 Test for varnish resistance of finished cable (wire) 6.8.1 Preparation of test specimens. The test equipment shall be in accordance with the requirements of Appendix A of this standard. 6.8.2 Test steps
Preheat the sample at the temperature specified in Appendix A of this standard for 24 hours. Then, immerse the sample in the room temperature agreed upon by the supplier and the buyer. a.
JB/T6213.11992
Test methods for thermal effect, solvent resistance and varnish resistance and their withstand voltage Bending and closing of finished cables (wires)
Test specimen preparation
In order to carry out the bending, thermal effect, solvent resistance and immersion resistance tests of finished cables (wires), 3 samples of about 1m in length are cut from the finished cables (wires). One end is stripped of insulation for about 20mm to expose the conductor for connection to high voltage. A2
Test steps
A2.1 Bending test
Slowly bend a section of the sample 180C on a round shaft of the diameter specified in Table A1. Table
Conductor nominal cutting area
>25~95
>95~240
Sound bending test
Note: D is the upper limit of the average outer diameter of the cable (wire). A2.2 Voltage withstand test after bending
Sound bending after thermal effect test
Bending after solvent resistance test
Bending after varnish resistance test
Immerse the bent part of the sample into a "U" shape after bending in water at room temperature, with a water depth of at least 100mm. Then, apply the voltage specified in Table A2 between the conductor and the water for 1 minute. Table
Rated voltage of cable (wire)
The bending and pressure resistance tests after thermal effect test, solvent resistance and immersion paint resistance test shall be carried out according to the methods specified in A2.1 and A2.2. The heating temperature of thermal effect solvent resistance and immersion paint resistance test shall be as specified in Table A3. Tests to be conducted,
Continuous operation of cable (wire)
Maximum conductor temperature
Basic technical requirements for polyester fiber are shown in Table B1. Sequence
JB/T 6213.1—1992
Appendix B
Basic technical requirements for polyester fibers
(Supplement)
Stretching unevenness
Breaking length1)
Stretching unevenness
Breaking/m
Hairy yarn, loopy yarn
, white spot
Hairy yarn loop
Note: The length of the fiber when it breaks due to its own weight when suspended. Appendix
Piece/tube
Piece/tube
Piece/tube
Main performance requirements of fluorinated ethylene propylene (FEP) resin (Supplement)
The main performance requirements of fluorinated ethylene propylene (FEP) resin are shown in Table C1. C1
Melt flow rate
Tensile strength (25℃）
Elongation
Specific volatility
Stress cracking resistance (bending strip method)
Dielectric constant
1×10Hz
Dielectric loss tangent
Volume resistivity
Additional instructions:
1×10°Hz
FEP460
260~266
≤7×10-4
>1X1016
This standard is proposed and managed by Shanghai Cable Research Institute, Ministry of Machinery and Electronics Industry. Refers to
90~130
FEP461
0.21~0.40
≥300
260~266
10 samples are not cracked
≤7×10-4
>1×1016
This standard was drafted by Shanghai Cable Research Institute of the Ministry of Machinery and Electronics Industry, Shanghai Cable Factory, Shanghai Electric Motor Factory, Shanghai Nanyang Wire and Cable Factory, Tianjin Wire General Factory and other units.
The main drafters of this standard are Zhang Dihua, Lin Jingwen, Li Cunhui, Hu Jingyu, Sun Jimei and Zhao Guojie. 9
People's Republic of China
Mechanical Industry Standard
Flexible Cables and Cords for Connecting Motor Windings
Part 1 General Provisions
JB/T 6213.11992
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Sheet X/X
K Number of words XXXXXX
Format 880×1230
Edition X, XX, 19XX
Xth printing, XX, 19XX
Number of copies 1-xXX
Price XXX.XX Yuan
XX-XXX
Mechanical Industry Standard Service Network: http://www.JB.ac.cn66_9
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