This standard specifies the product varieties, technical requirements and inspection rules of natural styrene butadiene rubber insulated cables (wires) for railway locomotives. This standard applies to natural styrene butadiene rubber insulated cables (wires) for railway locomotives with AC rated voltages of 1.5kV and below. In addition to meeting the requirements of this standard, cables (wires) shall also meet the requirements of GB12528.1. JB/T 8145.1-1995 Cables (wires) for railway locomotives with AC rated voltages of 3kV and below Natural styrene butadiene rubber insulated cables (wires) for railway locomotives JB/T8145.1-1995 Standard download decompression password: www.bzxz.net

UDC 621.315.2.027.5:629.4
National Standard of the People's Republic of China
Adjusted to 8145.1-25
GB12528.2—90
Shanghai Institute of Technical Supervision and Information
Registration No. CN91039
Cables (wires) for railway vehicles with rated voltages up to and including 3 kvNatural-styrenbutadiene.rubberInsulated cabiles (wires)for railwayvehieles of rated voltages up to and including 3 kvNatural-styrenbutadiene.rubber insulated cables (wires) for railway vehicles Issued on November 7, 1990
State Administration of Technical Supervision
Implementation on August 1, 1991
National Standard of the People's Republic of China
Cables (wires) for railway vehicles with rated voltages up to and including 3 kV Natural-styrenbutadiene rubber insulated cables (wires) for railway vehicles Subject content and scope of application
GB12528.2—90
This standard specifies the product varieties, technical requirements and inspection rules of natural styrene-butadiene rubber insulated cables (wires) for railway vehicles. This standard applies to natural styrene butadiene insulated railway locomotive and rolling stock cables (wires) with AC rated voltage of 1.5kV and below. In addition to meeting the requirements specified in this standard, cables (wires) shall also meet the requirements of GB12528.1. 2 Usage characteristics
2.1 Rated voltage is 750V and 1.5kV.
2.2 The long-term allowable operating temperature of the cable should not exceed 70℃: 2.3 The cable can be used in places contaminated by mineral oil but not fuel oil. 2.4 The allowable bending radius during cable laying: The cable outer diameter (D) of 20mm and below should not be less than 3D; the cable outer diameter (D) of more than 20mm should not be less than 5D. 3 Model
The model of copper core natural styrene butadiene rubber insulated fluorobutyl rubber sheathed railway locomotive and rolling stock cable (wire) is DCXF/2. 4 Specifications
The specifications of the cable are shown in Table 1.
Rated voltage, V
Approved by the State Bureau of Technical Supervision on November 7, 1990
Nominal area, mm2
Structural parameter table number
Implementation on August 1, 1991
5 Technical requirements
GB12528.2—90
The technical requirements for cables shall comply with the requirements of Table 2 and Table 3. Table 2 DCXF/2 type 750V copper core natural styrene butadiene rubber insulation nitrile rubber sheathed rolling stock cable (wire) Conductor nominal section
Conductor specification
Insulation nominal thickness
Sheath nominal thickness
Average outer diameter
Conductor nominal section
Conductor nominal section
Conductor specification
GB12528.2-—90
Continued table, 2
Insulation Nominal thickness
Nominal thickness of sheath
Average outer diameter
Table 3DCXF/2 type 1.5kV copper core natural styrene-butadiene rubber insulated chloroprene rubber sheathed rolling stock cable (wire) conductor specifications
Nominal insulation thickness
Nominal sheath thickness
Average outer diameter
..·.6.8
Nominal conductor section
Conductor specifications
The cable shall be tested as specified in Table 4.
Project name
Structural dimensions
Conductor structure
Insulation thickness
Sheath thickness
·Outer diameter dimensions
Electrical performance
Conductor resistance test
Finished cable voltage testwwW.bzxz.Net
Untreated sample voltage test
Bending sample voltage test
Finished cable breakdown test
Untreated sample breakdown test
Finished cable surface leakage and discharge test
Untreated sample surface leakage and discharge test Test
Finished cable moisture resistance test
GB12528.2—90
Continued Table 3
Insulation nominal thickness
Sheath nominal thickness
Table 4 Test
Technical requirements
Comply with the provisions of Article 5.1 of GB12528.1
Comply with the provisions of Article 5.2 of GB12528.1 and Tables 2~3 of this standard
Comply with the provisions of Article 5.3 of GB12528.1 and Tables 2~3 of this standard
Comply with the provisions of GB125 28.1 Article 5.4.1 and the provisions of Tables 2 to 3 of this standard
Conform to Article 5.4.1 of GB12528.1
Conform to Article 1 of Table 5 of GB12528.1
Conform to Article 2 of Table 5 of GB12528.1
Conform to Article 3 of Table 5 of GB12528.1
Conform to Article 4 of Table 5 of GB12528.1
Conform to Article 5 of Table 5 of GB12528.1
Average outer diameter
Test Method
GB4909
GB3048.4.
GB3048.8 and
GB12528.1 Appendix C
GB12528.1 Appendix D
GB12528.1 Appendix E
Project name
Insulation mechanical physical properties
Tensile strength before and after aging
Elongation at break before and after aging
Ozone resistance test
Low-temperature winding test
Untreated sample low-temperature winding test| |tt||Low temperature of sample after aging in air box
Winding test
Low temperature tensile test
Low temperature tensile test of untreated sample
Low temperature of sample after aging in air box
Tensile test
Mechanical and physical properties of sheath
Tensile strength before and after aging
Elongation at break before and after aging
Mineral oil resistance test
Ozone resistance test
Low temperature winding test
Low temperature winding test of untreated sample
After aging in air box Low temperature winding test of samples
Low temperature tensile test
Low temperature tensile test of untreated samples
Low temperature tensile test of samples aged in air box
Combustion test
Combustion test of untreated samples
GB12528.2—90
Continued Table 4
Conform to the provisions of Article 1 of Table 3 of GB12528.1
Conform to the provisions of Article 1 of Table 3 of GB12528.1
Conform to the provisions of Article 1 of Table 3 of GB12528.1
Conform to Table 3 of GB12528.1 Article 2
Comply with Article 3 of Table 3 of GB12528.1
Comply with Article 4 of Table 3 of GB12528.1
Comply with Article 1 of Table 4 of GB12528.1
Comply with Article 1 of Table 4 of GB12528.1
Comply with Article 2 of Table 4 of GB12528.1
Comply with Article 4 of Table 4 of GB12528.1
Comply with Article 6 of Table 4 of GB12528.1 Article 7 stipulates that the test method shall comply with the provisions of Article 5.4.5 of GB12528.1. GB2951.5 and GB2951.5 and GB2951.35. GB2951.12 and GB2951.13. GB2951.6 and GB2951.6 and GB2951.15 and GB12528.1 Appendix B GB2951.35
GB2951.12
GB2951.13
GB12528.1
Test specimen treated with mineral oil
Burning test
Printed logo abrasion test
Additional instructions:
GB12528.290
Continued Table 4
Conforms to Article 8.1 of GB12528.1
This standard was proposed by the Ministry of Machinery and Electronics Industry of the People's Republic of China and is under the jurisdiction of Shanghai Cable Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by Shanghai Cable Research Institute. The main drafters of this standard are Jimin, Sun Zhenghua, Li Xueming, Liu Suilin and Zhang Jinglin. Test method
GB12528.1
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Book number: 155066·1-8009
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Heading 162-26
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