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    ZPFU & ZPFU-SH Main & Local Signalling Cables (DC Electrified Lines)

    • ZPFU & ZPFU-SH Main & Local Signalling Cables
    • ZPFU & ZPFU-SH Main & Local Signalling Cables

    Application

    The cables are designed for the main signalling circuits of 1500V DC electrifi ed lines.

    Standard

    • SNCF CT 445
    • NF F 55-698

    Cable Construction

    • Electrical Characteristics at 20℃Conductors: Solid annealed copper, 1.0mm nominal cross section area.
    • Insulation: Solid polyethylene.
    • Cabling Element: Each two conductors are twisted together to form a pair.
    • Stranding: Pairs are helically stranded in layers to form the cable core.
    • Core Wrapping: Plastic tape(s) with overlapping.
    • Inner Sheath: PE sheath. LSZH FR option can be offered upon request to NF C 32 070.2.2 (C1).
    • Mechanical Protection: Two helically applied steel tapes (0.15, 0.2/0.5mm, depending on pair count).
    • Outer Sheath: PE/PVC. LSZH FR option can be offered upon request to NF C 32 070.2.2 (C1).
    • Remark: ZPFU: PE/PVC Sheath; ZPFU-SH: LSZH Sheath.
    Nominal Conductor Diameter mm 1.13 1.38
    Nominal Cross Section Area mm 1.0 1.5
    Maximum Conductor Resistance (DC) Ω/km 18.1 12.31
    Minimum Insulation Resistance @500 V DC (3mins) MΩ.km 5000 5000
    Maximum Mutual Capacitance @1000Hz (AC) nF/km 55 55
    Maximum Capacitance Unbalance @1000Hz pF/500 m 400 400
    Attenuation @45KHz dB/km 2.5 2.5
    Characteristic Impedance @45KHz Ω 120 120
    Dielectric Strength, conductor to conductor (DC voltage 3secs) V 4500 4500
    Operating Voltage (AC/DC) V 450/750 450/750

    Mechanical and Thermal Properties

    • Minimum Bending Radius: 8×OD (static); 16×OD (dynamic)
    • Temperature Range: -40℃ to +70℃ (during operation); -20℃ to +50℃ (during installation)

    Dimensions and Weight

    Cable Code No. of
    Pairs
    Nominal Sheath Thickness
    mm
    Nominal Overall
    Diameter
    mm
    Nominal
    Weight
    kg/km
    Armour
    Thickness
    mm
    Inner Outer
    1.13mm Conductor, 2.3 Insulated Wire
    RS/ZPFU-2Y2YB2Y-1P1S 1 1.0 1.5 11.7 207 0.15
    RS/ZPFU-2Y2YB2Y-2P1S 2 1.0 1.5 12.9 257 0.2
    RS/ZPFU-2Y2YB2Y-4P1S 4 1.0 1.6 16.8 509 0.2
    RS/ZPFU-2Y2YB2Y-7P1S 7 1.0 1.7 19.0 653 0.5
    RS/ZPFU-2Y2YB2Y-14P1S 14 1.2 1.8 24.1 1011 0.5
    RS/ZPFU-2Y2YB2Y-21P1S 21 1.2 2.0 27.8 1304 0.5
    RS/ZPFU-2Y2YB2Y-28P1S 28 1.2 2.2 31.0 1594 0.5
    RS/ZPFU-2Y2YB2Y-56P1S 56 1.3 2.5 40.5 2630 0.5

     

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