GB/T 14820.2-1993 High-voltage ignition wires for road vehicles Part 2: Copper core high-voltage ignition wires GB/T14820.2-1993 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
High tension ignition wires for road vehicles
Part 2 Copper conductor high tension ignition wires
High tension ignition wires
for road vehicle
Part 2 Copper conductor high tension ignition wires
This standard is equivalent to the international standards ISO3808/1-1979 and ISO3808/2—1980. Subject content and scope of application
This standard specifies the product varieties, technical requirements and inspection rules of copper conductor high tension ignition wires. GB/T 14820.2—93
This standard applies to unshielded copper conductor high tension ignition wires for engine ignition systems of road vehicles represented by automobiles. In addition to meeting the requirements of this standard, the wires shall also meet the requirements of GB/T14820.1. Usage characteristics
Allowable working temperature of wire:
QGV-105 *
Other models
3 models
The models of wires are specified in Table 1.
Copper core polyvinyl chloride insulated high-voltage ignition wire for road vehicles is called
Copper core polyvinyl fluoride-nitrile composite insulated high-voltage ignition wire for road vehicles QGV-105
The specifications of the wire are shown in Table 2.
Copper core heat-resistant 105℃ polyvinyl fluoride insulated high-voltage ignition wire for road vehicles Steel core natural styrene butadiene rubber insulated chloroprene sheathed high-voltage ignition wire for road vehicles Copper core natural styrene butadiene rubber insulated PVC sheathed high-voltage ignition wire for road vehicles approved by the State Technical Supervision Bureau on December 30, 1993 Should not exceed 105℃
Should not exceed 70℃.
1994-10-01 implementation
Conductor nominal
GB/T14820.2-93
Conductor structure
Minimum number of strands
Nominal thickness of insulation, mm
QGV, QGF
QGV-105
Nominal thickness of sheath, mm
QGXF, QGXV
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 cross-section of the conductor and the corresponding number of strands. 5 Technical requirements
5.1 Conductor
Outer diameter of finished product
5.1.1 For QGXF and QGXV type wires, the single wires in the conductor can be tinned or not. If the conductor is not tinned, an isolation layer made of suitable material should be wrapped around the outside of the conductor. It is allowed that the tinned wire core is not covered with an isolation layer. 5.1.2 The conductor structure shall comply with the provisions of Table 2. 5.2 Insulation
5.2.1 The performance of the insulation shall comply with the requirements of GB/T14820.1. 5.2.2 The nominal thickness of the insulation shall comply with the provisions of Table 2. 5.2.3 The insulated core of QGXF and QGXV wires is allowed to use a braided layer. The thickness of the braided layer embedded in the insulation and sheath is not subject to the thickness assessment.
5.3 Sheath
5.3.1 The performance and appearance of the sheath shall comply with the requirements of GB/T14820.1. 5.3.2 The nominal thickness of the sheath shall comply with the provisions of Table 2. 5.4 Finished wires
5.4.1 The outer diameter of the wire shall comply with the provisions of Table 2. 5.4.2 The finished wire shall be subjected to the power frequency spark test specified in Table 3 or the flooding power frequency voltage test with a test duration of 5 minutes. Table 3
Wire outer diameter code
Power frequency spark test voltage (effective value)
Water immersion test voltage (effective value)
5.4.3 The wire shall be subjected to the 30min power frequency voltage test and continuous voltage rise test specified in Table 4. Table 4
Wire outer diameter code
30min test voltage (effective value)
5.4.4 The wire shall be subjected to the corona resistance test specified in Table 5. 164
Continuous voltage rise test voltage (effective value)
Wire outer diameter code
GB/T 14820.2—93
Test voltage (effective value)
5.4.5QGV, QGV-105, QGXV, QGF type wires shall be subjected to the high temperature pressure test specified in Table 6. Table 6
QGV.QGXV.QGF
QGV-105
5.4.6 The wire shall be subjected to the high temperature winding test specified in Table 7. Model
QGV-105
Other models
Test temperature
105±2
Test temperature
120±2
105±2
5.4.7 The wire shall be subjected to the heat shrinkage test, the test temperature is 155±2℃, the duration is 15min, the shrinkage rate shall not exceed 2%, and there shall be no cracks on the wire surface.
5.4.8 The wire shall be subjected to the combustion test, the combustion time is 30s, after the flame is removed, the sample combustion shall extinguish itself within 30s. 5.4.9 The wire shall be subjected to the low temperature flexibility test. 5.4.10 The wires shall be subjected to oil resistance test.
5.4.11 The wires shall be subjected to fuel resistance test. 5.4.12 The wires shall be subjected to rapid life test. 5.4.12.1 The rapid life test voltage is as specified in Table 8. The wire outer diameter code
Test voltage (effective value)
The thermal aging temperature and low temperature test temperature of the rapid life test are as specified in Table 9. Table 9
QGV-105
Other models
5.4.13 The printed mark of the wire shall be subjected to abrasion resistance test. Aging test temperature
105±2
Low temperature test temperature
-15±3
-10±3
6 Test
The product shall be tested according to Table 10.
Structure and size inspection
Conductor structure
Insulation thicknessbzxZ.net
Sheath thickness
Test items
Power frequency spark test or immersion power frequency voltage test GB/T 14820.2-93
Article number
30min voltage test and continuous voltage rise power frequency voltage testElectric test resistance
High temperature pressure test
High temperature winding test
Heat shrinkage test
Burning test
Low temperature flexibility test
Oil resistance test
Fuel resistance test
Quick life test
Finished wire marking rub resistance test
Additional instructions:
Test type
This standard is proposed by Shanghai Cable Research Institute, Ministry of Machinery Industry of the People's Republic of China. This standard is under the jurisdiction of Shanghai Cable Research Institute, Ministry of Machinery Industry. This standard was drafted by Shanghai Cable Research Institute of the Ministry of Machinery Industry, Baicheng Automobile Wire Factory, etc. The person in charge of drafting this standard is Lin Jingwen.
Test method
GB 3048.9 or GB3048.8
Article 5.2 of GB/T14820.1
Article 5.3 of GB/T14820.1
GB2951.16.GB2951.17
Article 5.4 of GB/T14820.1
GB2951.33
GB 12666.4
Article 5.5 of GB/T14820.1
Article 5.7 of GB/T14820.1
Article 5.8 of GB/T14820.1
Article 5.9 of GB/T14820.1
GB 6995.1
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