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    450/750V Mica+XLPE Insulated, LSZH Sheathed Power Cables to BS 7211 (Single Core)

    FFX300 07mRZ1-U/R (CU/MGT+XLPE/LSZH 450/750V Class 1/2)

    • FFX300 07mRZ1-U/R
    • Caledonian Fire Resistant Power Cable

    APPLICATION

    The cables are mainly used in power stations, mass transit underground passenger systems, airports, petrochemical plants, hotels, hospitals and high-rise buildings.

    STANDARDS

    Basic design adapted from BS 7211:2012

    FIRE PERFORMANCE

    Circuit Integrity IEC 60331-21; BS 6387
    Flame Retardance (Single vertical wire or cable test) IEC 60332-1-2; EN 60332-1-2
    Reduced Fire Propagation (Vertically-mounted bundled wires & cables test) IEC 60332-3-24; EN 60332-3-24
    Halogen free IEC 60754-1; EN 50267-2-1
    No Corrosive Gas Emission IEC60754-2; EN 50267-2-2
    Minimum Smoke Emission IEC 61034-2; EN 61034-2

    VOLTAGE RATING

    450/750V

    CABLE CONSTRUCTION

    Conductor : Annealed copper conductor, solid or stranded according to BS EN 60228 class 1 or class 2.

    Fire Barrier : Mica glass tape.

    Insulation : XLPE type GP 8 according to BS 7655-1.3. Crosslinked polyolefin material type EI 5 according to EN 50363-5 can be offered as option.

    CPC (Circuit Protective Conductor) : Uninsulated copper conductor.

    Outer Sheath : Extruded LSZH type LTS 4 according to BS 7655-6.1.

    Outer Sheath Option : UV resistance, hydrocarbon resistance, oil resistance, anti-rodent and anti-termite properties can be offered as option.

    COLOUR CODE

    Insulation Colour : Brown or blue.

    Sheath Colour: White; other colours can be offered upon request.

    PHYSICAL AND THERMAL PROPERTIES

    Maximum temperature range during operation : 90°C

    Maximum short circuit temperature (5 Seconds) : 250°C

    Minimum bending radius :

    OD<8mm : 4 × Overall Diameter

    8mm≤OD≤12mm : 5 × Overall Diameter

    OD>12mm : 6 × Overall Diameter

    CONSTRUCTION PARAMETERS

    Conductor FFX300 07mRZ1-U/R
    No. of Cores × Cross-sectional Area Conductor Class Nominal Insulation Thickness Nominal Sheath Thickness Min. Overall Diameter Max. Overall Diameter Approx. Weight
    No.×mm²   mm mm mm mm kg/km
    1×1.0 1 0.7 0.8 4.9 5.8 30
    1×1.5 1 0.7 0.8 5.2 6.0 38
    1×2.5 1 0.7 0.8 5.6 6.5 51
    1×4 1 0.7 0.8 6.2 7.3 70
    1×6 1 0.7 0.8 6.7 7.8 95
    1×1.0 2 0.7 0.8 5.0 5.9 35
    1×1.5 2 0.7 0.8 5.3 6.2 43
    1×2.5 2 0.7 0.8 5.7 6.6 56
    1×4 2 0.7 0.9 6.3 7.4 77
    1×6 2 0.7 0.9 6.9 8.1 104
    1×10 2 0.7 0.9 7.7 9.1 147
    1×16 2 0.7 0.9 8.6 10.2 211
    1×25 2 0.9 1.0 10.4 12.4 325
    1×35 2 0.9 1.1 11.6 13.8 489

    ELECTRICAL PROPERTIES

    Conductor operating temperature : 90°C

    Ambient temperature : 30°C

    Current-Carrying Capacities (Amp) according to BS 7671:2008 table 4E1A

    Conductor cross-sectional area Ref. Method A (enclosed in conduit in thermally insulating wall etc.) Ref. Method B (enclosed in conduit on a wall or in trunking etc.) Ref. Method C (clipped direct) Ref. Method F (in free air or on a perforated cable tray, horizontal or vertical etc) Touching Ref. Method G (in free air) Spaced by one cable diameter
    2 cables, single-phase a.c. or d.c. 3 or 4 cables, three-phase a.c. 2 cables, single-phase a.c. or d.c 3 or 4 cables, three-phase a.c. 2 cables, single-phase a.c. or d.c. flat and touching 3 or 4 cables, three-phase a.c. flat and touching or trefoil 2 cables, single-phase a.c. or d.c. flat 3 cables, three-phase a.c. flat 3 cables, three-phase a.c. trefoil 2 cables, single-phase a.c. or d.c. or 3 cables three-phase a.c. flat
    Horizontal Vertical
    1 2 3 4 5 6 7 8 9 10 11 12
    mm² A A A A A A A A A A A
    1.0 14 13 17 15 19 17.5 - - - - -
    1.5 19 17 23 20 25 23 - - - - -
    2.5 26 23 31 28 34 31 - - - - -
    4 35 31 42 37 46 41 - - - - -
    6 45 40 54 48 59 54 - - - - -
    10 61 54 75 66 81 74 - - - - -
    16 81 73 100 88 109 99 - - - - -
    25 106 95 133 117 143 130 161 141 135 182 161
    35 131 117 164 144 176 161 200 176 169 226 201

    Voltage Drop (Per Amp Per Meter) according to BS 7671:2008 table 4E1B

    Conductor cross-sectional area 2 cables d.c. 2 cables, single-phase a.c. 3 or 4 cables, three-phase a.c.
    Ref. Methods A&B (enclosed in conduit or trunking) Ref. Methods C, F&G (clipped direct, on trays or in free air) Ref. Methods A&B (enclosed in conduit or trunking) Ref. Methods C, F&G (clipped direct, on trays or in free air)
    Cables touching Cables spaced* Cables touching, Trefoil Cables touching, flat Cables spaced*, flat
    1 2 3 4 5 6 7 8 9
    mm² mV/A/m mV/A/m mV/A/m mV/A/m mV/A/m mV/A/m mV/A/m mV/A/m
    1.0 46 46 46 46 40 40 40 40
    1.5 31 31 31 31 27 27 27 27
    2.5 19 19 19 19 16 16 16 16
    4 12 12 12 12 10 10 10 10
    6 7.9 7.9 7.9 7.9 6.8 6.8 6.8 6.8
    10 4.7 4.7 4.7 4.7 4.0 4.0 4.0 4.0
    16 2.9 2.9 2.9 2.9 2.5 2.5 2.5 2.5
        r x z r x z r x z r x z r x z r x z r x z
    25 1.85 1.85 0.31 1.90 1.85 0.190 1.85 1.85 0.28 1.85 1.60 0.27 1.65 1.60 0.165 1.60 1.60 0.190 1.60 1.60 0.27 1.65
    35 1.35 1.35 0.29 1.35 1.35 0.180 1.35 1.35 0.27 1.35 1.15 0.25 1.15 1.15 0.155 1.15 1.15 0.180 1.15 1.15 0.26 1.20

    Note: *Spacings larger than one cable diameter will result in a large voltage drop.

    r = conductor resistance at operating temperature

    x = reactance

    z = impedance

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