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Tianchang Shifeng Electric Co., Ltd
750V railway locomotive and vehicle cables
NegotiableUpdate on 05/12
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Overview
750V Railway Locomotive and Rolling Stock Cable Rubber J-edge Cable for Railway Locomotive and Rolling Stock adopts rubber J-edge, which is divided into three varieties according to the different types of rubber used for J-edge. It is mainly suitable for power transmission and laying connection of railway locomotive and rolling stock cables with AC rated voltage of 3kV and below, and has certain characteristics such as oil resistance, cold resistance, and UV resistance.
Product Details
750V railway locomotive and vehicle cablesScope of application
Rubber J-edge cables are used for railway locomotives and vehicles, and are divided into three varieties according to the different types of rubber used for J-edge cables. They are mainly suitable for the transmission and laying of electrical energy for railway locomotives and vehicles with AC rated voltage of 3kV and below, and have certain characteristics such as oil resistance, cold resistance, and UV resistance.
Characteristics of Rubber J-Edge Cables for Railway Locomotives and Vehicles
1. The rated voltage U0/U is 500V, 750V, 1kV, 1.5kV, and 3kV. The DC rated voltage is 1.5 times the AC rated voltage.
2. The long-term allowable working temperature for cables is 70 ℃ for DCXF/2, DCH/3, and DCEH/3 products; DCH/3-100, DCEH/3-100 products have a temperature of 100 ℃.
3. Low operating environment temperature for cables: DCXF/2, DCH/3, DCEH/3, DCH/3-100, DCEH/3-100 and other products should not be lower than -25 ℃.
4. Allowable bending radius for cable laying:
When the outer diameter (D) of the cable is 20mm or less, it should not be less than 3D.
When the outer diameter (D) of the cable is 20mm or more, it should not be less than 5D.
750V railway locomotive and vehicle cablesModel and Specifications
1. The cable models are shown in Table 1
Table 1 Cable Model and M-Scale
serial number |
model |
rated voltage |
M called |
1 |
DCXF/2 |
750V、1.5kV |
Copper core natural styrene butadiene rubber J-edge chloroprene rubber sheathed railway locomotive and vehicle cable (wire) |
2 |
DCH/3 |
750V |
Copper core chlorosulfonated polyethylene J-edge railway locomotive and vehicle cable (wire) |
3 |
DCH/3-100 |
750V |
Copper core heat-resistant 100 ℃ chlorosulfonated polyethylene J-edge railway locomotive and vehicle cable (wire) |
4 |
DCEH/3 |
750V、1.5kV、3kV |
Copper core EPDM J-edge chlorosulfonated polyethylene sheathed railway locomotive and vehicle cable (wire) |
5 |
DCEH/3-100 |
750V、1.5kV、3kV |
Copper core heat-resistant 100 ℃ ethylene propylene J-edge chlorosulfonated polyethylene sheathed railway locomotive and vehicle cable (wire) |
2. The specifications of rubber J-edge cables for railway locomotives and vehicles are shown in Table 2
Table 2 Cable Specifications
serial number |
model |
rated voltage |
Specification mm2 |
1 |
DCXF/2 |
750V，1.5kV |
1，1.5，2.5，4，6，10，16，25，35，50，70，95，120，150，185，240，300 |
2 |
DCH/3，DCH/3-100 |
750V |
0.5，0.75，1，1.5，2.5，4，6，10，16，25，35，50，70，95，120，150，185，240，300 |
3 |
DCEH/3，DCEH/3-100 |
750V |
0.5，0.75，1，1.5，2.5，4，6，10，16，25，35，50，70，95，120，150，185，240，300 |
4 |
DCEH/3，DCEH/3-100 |
1.5kV |
1，1.5，2.5，4，6，10，16，25，35，50，70，95，120，150，185，240，300 |
Table 3 M-scale and meaning of rubber J-edge cable codes for railway locomotives and vehicles
project |
code name |
explanation |
Series code |
DC |
Cables (wires) for locomotives and vehicles |
J-edge material |
X |
Natural styrene butadiene rubber |
E |
Ethylene propylene rubber |
|
H |
Chlorosulfonated polyethylene |
|
Jacket material |
F |
Chloroprene rubber |
H |
Chlorosulfonated polyethylene |
|
Oil resistance characteristics |
1 |
Installed in areas free from mineral oil and fuel oil pollution |
2 |
Installed in areas contaminated with mineral oil but without fuel oil pollution |
|
3 |
Installed in areas contaminated with mineral oil and fuel oil |
|
Heat resistance characteristics |
70 |
Heat resistant to 70 ℃ |
100 |
Heat resistant to 100 ℃ |
|
Note: If the temperature resistance is not clearly marked, it is 70 ℃. | ||
Main technical characteristics of rubber J-edge cables for railway locomotives and vehicles
1. The DC resistance of the finished cable conductor complies with the relevant provisions of GB/T 3956-1983.
2. At 20 ℃, the J-edge resistance of DCEH/3 and DCEH/3-100 cables with a rated voltage of 3kV should not be less than 1013 Ω. km.
3. The finished cable shall withstand the following AC voltage test without breakdown
