GB/T 14820.3-1993 High voltage ignition wire for road vehicles Part 3: Damping core high voltage ignition wire GB/T14820.3-1993 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
High tension ignition wires for road vehicles
Damping core high tension ignition wires
Part 3
High tension ignition wires
for road vehicle
Part 3 Damping conductor high tension ignition wires
This standard is equivalent to the international standards ISO3808/1-1979 and ISO3808/2-1980. 1 Subject content and scope of application
This standard specifies the product varieties, technical requirements and inspection rules of damping core high tension ignition wires. GB/T 14820.3-93
This standard applies to unshielded damping core high tension ignition wires used in the engine ignition system 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. 2 Usage characteristics
Allowable working temperature of wire:
QGZV-105
Other models
3 Models
The models of wires are as specified in Table 1.
QGZV-105
The specifications of wires are as specified in Table 2.
Highway vehicle damping core polyvinyl chloride insulated high voltage ignition wire for road vehicle damping core sulphur fluoride vinyl-nitrile composite insulated high voltage ignition wire for road vehicle damping core heat-resistant 105C plain fluoride vinyl insulated high voltage ignition wire for road vehicle damping core natural styrene butadiene rubber insulated fluoride vinyl sheathed high voltage ignition wire for road vehicle damping core natural styrene butadiene rubber insulated fluoride vinyl sheathed high voltage ignition wire for road vehicle approved by the State Administration of Technical Supervision on December 30, 1993, should not exceed 105℃
should not exceed 70℃
implemented on October 1, 1994
5 Technical requirements||tt| |5.1 Conductive core
Damping core
GB/T14820.3—93
Nominal insulation thickness
QGZV,QGZF
QGZV-105
Nominal sheath thickness
QGZXV,QGZXF
Outer diameter of finished product
5.1.1 The resistance value of the damping core shall be agreed upon by both the supplier and the buyer. If the user does not make any requirements, the DC resistance value of the reactance core at 20℃ shall be greater than 3.2ka/m, and the DC resistance value of the resistance core at 20℃ shall be greater than 12.8kg/m. 5.1.2 The size of the damping core shall comply with the provisions of Table 2. 5.2 Insulation
5.2.1 The performance and appearance of the insulation shall comply with the requirements of GB/T14820.1. 5.2.2 The nominal thickness of insulation shall comply with the provisions of Table 2. 5.2.3 For QGZXV and QGZXF type wires, the insulated core 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 finished wire shall comply with the provisions of Table 2. 5.4.2 The finished wire shall be subjected to the water immersion power frequency voltage test specified in Table 3, and the test duration is 5 minutes. Table 3
Wire outer diameter code
Test voltage (effective value)
5.4.3 The finished wire shall be subjected to the 30-minute power frequency voltage test and the continuous boost power frequency voltage 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. 168
Continuous voltage rise test voltage (effective value)
Wire outer diameter code
GB/T 14820.3-93
Test voltage (effective value)
5.4.5QGZV, QGZV-105, QGZF and QGZXV wires shall be subjected to the high temperature pressure test specified in Table 6. Table 6
QGZV.QGZXV, QGZF
QGZV-105
Wires shall be subjected to the high temperature winding test specified in Table 7. Model
QGZV-105Www.bzxZ.net
Other models
Test temperature, ℃
120±2
105±2
Test temperature
105±2
Resistance change rate range, %
30～+50
30～+50
5.4.7 The wire shall be subjected to 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 combustion test, the combustion time is 30s, after the flame is removed, the burning of the sample shall be extinguished within 30s. 5.4.9 The wire shall be subjected to low temperature flexibility test. The wire shall be subjected to mechanical tensile test specified in Table 8. 5.4.10
Wire outer diameter code
1 Wires shall be subjected to lubricating oil resistance test.
Wires shall be subjected to fuel resistance test.
5.4.13 Wires shall be subjected to rapid life test. 5.4.13.1 Rapid life test test voltage is as specified in Table 9. Table 9
Wire outer diameter code
Test voltage (effective value)
GB/T 14820.3—93
5.4.13.2 The heat aging temperature and low temperature test temperature of rapid life test are as specified in Table 10. Table 10
QGZV-105
Other models
5.4.14 The printed mark of the wire shall be subjected to abrasion resistance test. 6 Test
The product shall be tested as specified in Table 11.
Test items
Structural and dimension inspection
Damping core diameter
Insulation thickness
Sheath thickness
Conductor resistance test
Aging test temperature
105±2
Article number
Water immersion withstand voltage test
30min power frequency voltage test and continuous boost power frequency voltage test
Corona resistance test
High temperature pressure test
High temperature winding test
Heat shrinkage test
Burning test
Low temperature flexibility test
Mechanical tensile test
Lubricating oil resistance test
Fuel resistance test
Quick life test
Finished wire marking abrasion resistance test
Additional instructions:
Test type
This standard was proposed by the Shanghai Cable Research Institute of the Ministry of Machinery Industry of the People's Republic of China. This standard is under the jurisdiction of the Shanghai Cable Research Institute of the Ministry of Machinery Industry. This standard was drafted by the Shanghai Cable Research Institute of the Ministry of Machinery Industry, Baicheng Automobile Wire Factory, etc. Lin Jingwen, the person in charge of drafting this standard.
Low temperature test temperature
-10±3
Test method
GB 2951.4
GB 2951. 4
GB 3048. 4
GB 3048.8
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
GB/T Article 5.6 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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