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    450/750V Limited Fire Hazard Earthing Cables to SE774

    Application

    The single core signalling earth and power cables are used in safety signalling equipment rooms.

    Standard

    • SE774
    • UNE 21027

    Cable Construction

    • Electrical Characteristics at 20℃Conductors: Stranded tinned copper conductors.
    • Insulation: Thermoplastic LSZH.
    Nominal Conductor Cross Section mm^2 1.0 4.0 6.0 16.0 35.0
    Maximum DC Conductor Resistance Ω/km 18.2 4.7 3.11 1.16 0.529
    Voltage Rating KV 0.45/0.75

    Mechanical and Thermal Properties

    • Minimum Bending Radius: 7.5×OD
    • Temperature Range:-25℃ to +85℃ (during operation); -10℃ to +70℃ (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
    RF774-ES07Z-U-450/750V-1G1 1×1.0 1/1.13 0.6 4.0 28
    RF774-ES07Z-U-450/750V-1G4 1×4.0 7/0.85 0.8 5.5 33
    RF774-ES07Z-U-450/750V-1G6 1×6.0 7/1.04 0.8 6.1 90
    RF774-ES07Z-U-450/750V-1G16 1×16.0 7/1.7 1.0 8.1 197
    RF774-ES07Z-U-450/750V-1G35 1×35.0 19/1.53 1.2 10.9 389

    U is changed to K if the stranding class is changed from class 2 to class 5

     

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