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    P123 RFOU/TFOU-FIRE RESISTANT 12/20 (24)kV

    Applications

    These cables are fire resistant, flame retardant, low smoke and halogen free, used for emergency control, power and lighting systems that need to be operational during a 1100℃ hydrocarbon fire.

    Standards

    IEC 60092-354

    IEC 60092-360

    IEC 60331-21

    IEC 60332-1

    IEC 60332-3-22

    IEC 60754-1,2

    IEC 61034-1,2

    NEK 606:2016

    Construction

    Conductors : Circular tinned annealed stranded copper to IEC 60228 class 2 or class 5.

    Conductor Screen : Semi conducting material.

    Insulation : Halogen-free EPR or XLPE.

    Insulation Screen : Semi conducting material and tinned copper wire braid.

    Bedding : Halogen free compound.

    Armour : Tinned copper wire braid.

    Outer Sheath : Halogen free thermosetting compound, SHF2, coloured red.

    Optional Fire protection : Extruded thermoplastic fire protection compound.

    Optional Taping : Lapped glass fibre tape.

    Optional Sheath : Flame retardant halogen-free thermoplastic compound, SHF1, coloured red.

    Electrical Characteristics

    Nominal Cross Section Area mm² 70 95 120 150 185 240 300
    Nominal Conductor Diameter mm 10.3 12.2 13.8 15.1 17.0 19.6 21.9
    Maximum DC Resistant@20℃ Ω/km 0.27 0.195 0.154 0.126 0.1 0.0762 0.0607
    Continuous Current Rating@45℃ 1 Core A 242 293 339 389 444 522 601
    Continuous Current Rating@45℃ 3 Core A 169 205 237 272 311 365 421
    Short Circuit Current 1s A 10020 13590 17170 21460 26470 34340 42930
    Operating Voltage KV 12/20 12/20 12/20 12/20 12/20 12/20 12/20

    Ambient Temperature Correction Factors

    Ambient Temperature Correction Factors 35 40 45 50 55 60 65 70 75 80
    Rating Factor 1.1 1.05 1.0 0.94 0.88 0.82 0.74 0.67 0.58 0.47

    Mechanical and Thermal Properties

    Bending Radius : 20×OD (during installation); 12×OD (fixed installed)

    Temperature Range : -20℃ ~ +90℃

    Dimensions and Weight

    Construction No. of cores × Cross section Nominal Insulation Thickness Nominal Diameter under armour Nominal Overall Diameter Nominal Weight
    mm² mm mm mm kg/km
    1×50 5.5 37.9 49 3160
    1×70 5.5 39.6 51 3500
    1×95 5.5 41.4 53 3940
    1×120 5.5 42.8 54 4290
    1×150 5.5 44.2 56 6470
    1×185 5.5 46.1 58 5210
    1×240 5.5 48.6 60 5980
    1×300 5.5 51.9 64 6840
    3×50 5.5 71.9 86 8600
    3×95 5.5 75.5 90 9910
    3×150 5.5 79.4 94 11090
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