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    300V DC Negative Traction Cables

    Application

    These DC power cables are used for urban railways for 1500V DC traction power system with feedback current and return current, suitable for fixed installation. The cables are suitable for installations in ducts, tunnels, and cable troughs or on the cable bridges etc.

    Standard

    • IEC60092
    • BS 7655
    • IEC60502
    • BS 6883 Type 657 SW4

    Cable Construction

    • Electrical Characteristics at 20℃Conductor: Class 2 stranded annealed bare copper conductors to BS EN 60228: 2005 (previously BS 6360).
    • Core Wrapping: PETP (Polyethylene Terephthalate).
    • Sheath: Thermosetting LSZH compound SW4 or LRS1 to BS 7655 / ICEA T-33-655 with enhanced oil resistance, and minimum tear resistance.
    Nominal Conductor Cross Section mm^2 70 95 120 150 185 240 300 400 500
    Maximum DC Conductor Resistance Ω/km 0.277 0.21 0.164 0.132 0.108 0.0817 0.0654 0.0495 0.0391
    Minimum Insulation Resistance MΩ.km 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8
    Conductor Short Circuit Current 1s kA 10.0 13.5 17.1 21.4 16.4 34.3 42.9 57.2 71.5
    Voltage Rating KV 0.3

    Mechanical and Thermal Properties

    • Minimum Bending Radius: 6×OD
    • Temperature Range: -40℃ to +90℃ (during operation); -25℃ to +60℃ (during installation)

    Dimensions and Weight

    Cable Code No. of cores& Nominal
    Conductor Cross
    Sectional Area
    No.×mm^2
    No. & Nominal
    Diameter of
    Strands
    No/mm
    Nominal
    Insulation
    Thickness
    mm
    Nominal
    Overall
    Diameter
    mm
    Nominal
    Weight
    kg/km
    Polarity
    RF6883-ES05Z1-U-300N-1G70 1×70 19/2.14 4.0 19.4 1055 Negative
    RF6883-ES05Z1-U-300N-1G95 1×95 19/2.52 4.0 20.7 1307 Negative
    RF6883-ES05Z1-U-300N-1G120 1×120 37/2.03 4.0 22.6 1598 Negative
    RF6883-ES05Z1-U-300N-1G150 1×150 37/2.25 4.0 24.3 1913 Negative
    RF6883-ES05Z1-U-300N-1G185 1×185 37/2.52 4.0 26.3 2274 Negative
    RF6883-ES05Z1-U-300N-1G240 1×240 61/2.25 4.0 29.1 2893 Negative
    RF6883-ES05Z1-U-300N-1G300 1×300 61/2.52 4.0 32.3 3530 Negative
    RF6883-ES05Z1-U-300N-1G400 1×400 61/2.85 4.0 36.3 4532 Negative
    RF6883-ES05Z1-U-300N-1G500 1×500 91/2.65 4.0 40.3 5684 Negative
    RF6883-ES05Z1-U-300N-1G630 1×630 127/2.52 4.0 42.3 6400 Negative
    RF6883-ES05Z1-U-300N-1G800 1×800 127/2.85 4.0 46.5 8094 Negative

     

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