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    G7622 Trackside Communications Cables

    Application

    The cables are designed for installation in trackside bracket runs and for use within railway equipment rooms within open locations (type 1) or in subsurface tunnels and underground locations (type 2).

    Standard

    • LUL Spec G7622 A1 type 1 (for PVC sheath)
    • LUL Spec G7622 A1 type 2 (for LSZH sheath)

    Cable Construction

    • Core IdentificationConductors: Solid plain copper, 0.63/0.9 mm nominal diameter.
    • Insulation: Cellular polyethylene.
    • Cabling Element: Four insulated conductors are twisted together to form a quad.
    • Stranding: Conductors are helically stranded in concentric layers.
    • Core Wrapping: Plastic tape (s) with overlapping.
    • Moisture Barrier: One laminated sheath made of aluminium tape (0.15mm thick) coated with PE-Copolymer on at least one side is applied with longitudinally overlap.
    • Outer Sheath: LSZH sheath, coloured violet.
    • Optional

    • Type 1 Cables: For type 1 cables, additional foil (at least one polyester tape) and PVC sheath are applied over the LSZH sheath. (VDE Code: A-02Y(L)HY)
    • Armoured Cables: Corrugated steel tape armour is applied with an overlap over LSZH sheath. An outer LSZH sheath is applied over the armour. (VDE Code: A-02Y(L)H(SR)H)

    Electrical Characteristics at 20℃

    Nominal Conductor Diameter mm 0.63 0.9
    Maximum Conductor Resistance      
    Average Value Ω/km 57.5 28
    Individual Value Ω/km 59 29
    Minimum Insulation Resistance @500 V DC MΩ.km 1500 1500
    Maximum Average Mutual Capacitance nF/km 59 59
    Maximum Average Capacitance Unbalance      
    Between pairs in same quad pF/460m 50 50
    Between pairs (centre or in any layer) pF/460m 30 30
    Between any pairs and earth pF/460m 200 200
    Between phantom and pairs in same quad pF/460m 300 300

    Mechanical and Thermal Properties

    • Minimum Bending Radius: 7.5×OD (unarmoured); 10×OD (armoured)
    • Temperature Range: -40℃ to +70℃ (during operation); -10℃ to +50℃ (during installation)

    Dimensions and Weight

    G7622 A1 Type 2 Cables

    Cable Code No. of pairs Minimum Sheath
    Thickness
    mm
    Nominal Overall
    Diameter
    mm
    Nominal Weight
    kg/km
    0.63mm Conductor, 1.0mm Insulated Wire
    RS7622A1/T2-02Y(L)H-8P0.63 8 2.5 14.5 190
    RS7622A1/T2-02Y(L)H-14P0.63 14 2.5 16.0 240
    RS7622A1/T2-02Y(L)H-20P0.63 20 2.5 17.5 310
    RS7622A1/T2-02Y(L)H-28P0.63 28 2.5 19.5 380
    RS7622A1/T2-02Y(L)H-38P0.63 38 2.5 21.5 470
    RS7622A1/T2-02Y(L)H-54P0.63 54 2.5 23.5 610
    RS7622A1/T2-02Y(L)H-74P0.63 74 2.5 25.5 780
    RS7622A1/T2-02Y(L)H-104P0.63 104 2.5 29.0 1020
    RS7622A1/T2-02Y(L)H-160P0.63 160 2.5 34.0 1498
    RS7622A1/T2-02Y(L)H-228P0.63 228 2.5 39.0 1993
    RS7622A1/T2-02Y(L)H-308P0.63 308 2.5 43.5 2670
    0.9mm Conductor, 1.5mm Insulated Wire
    RS7622A1/T2-02Y(L)H-8P0.9 8 2.5 17.5 280
    RS7622A1/T2-02Y(L)H-14P0.9 14 2.5 20.0 380
    RS7622A1/T2-02Y(L)H-20P0.9 20 2.5 22.5 500
    RS7622A1/T2-02Y(L)H-28P0.9 28 2.5 24.5 630
    RS7622A1/T2-02Y(L)H-38P0.9 38 2.5 25.5 790
    RS7622A1/T2-02Y(L)H-54P0.9 54 2.5 29.0 1060
    RS7622A1/T2-02Y(L)H-74P0.9 74 2.5 32.5 1370
    RS7622A1/T2-02Y(L)H-104P0.9 108 2.5 37.5 1830

    G7622 A1 Type 1 Cables

    Cable Code No. of pairs Minimum Sheath Thickness
    mm
    Nominal Overall
    Diameter
    mm
    Nominal Weight
    kg/km
       
    0.63mm Conductor, 1.0mm Insulated Wire
    RS7622A1/T1-02Y(L)HY-8P0.63 8 2.5 3.0 20.5 330
    RS7622A1/T1-02Y(L)HY-14P0.63 14 2.5 3.0 22.0 390
    RS7622A1/T1-02Y(L)HY-20P0.63 20 2.5 3.0 23.5 480
    RS7622A1/T1-02Y(L)HY-28P0.63 28 2.5 3.0 25.5 560
    RS7622A1/T1-02Y(L)HY-38P0.63 38 2.5 3.0 27.5 660
    RS7622A1/T1-02Y(L)HY-54P0.63 54 2.5 3.0 29.5 830
    RS7622A1/T1-02Y(L)HY-74P0.63 74 2.5 3.0 31.5 1010
    RS7622A1/T1-02Y(L)HY-104P0.63 104 2.5 3.0 35.0 1290
    0.9mm Conductor, 1.5mm Insulated Wire
    RS7622A1/T1-02Y(L)HY-8P0.9 8 2.5 3.0 23.5 440
    RS7622A1/T1-02Y(L)HY-14P0.9 14 2.5 3.0 26.0 550
    RS7622A1/T1-02Y(L)HY-20P0.9 20 2.5 3.0 28.5 700
    RS7622A1/T1-02Y(L)HY-28P0.9 28 2.5 3.0 30.5 840
    RS7622A1/T1-02Y(L)HY-38P0.9 38 2.5 3.0 31.5 1020
    RS7622A1/T1-02Y(L)HY-54P0.9 54 2.5 3.0 35.0 1310
    RS7622A1/T1-02Y(L)HY-74P0.9 74 2.5 3.0 38.5 1650
    RS7622A1/T1-02Y(L)HY-104P0.9 104 2.5 3.0 43.5 2160

    Armoured G7622 A1 Type 2 Cables

    Cable Code No. of pairs Minimum Sheath Thickness
    mm
    Nominal Overall
    Diameter
    mm
    Nominal Weight
    kg/km
    Inner Outer
    0.63mm Conductor, 1.0mm Insulated Wire
    RS7622A1/T2-02Y(L)H(SR)H-8P0.63 8 1.2 2.5 18.2 430
    RS7622A1/T2-02Y(L)H(SR)H-14P0.63 14 1.2 2.5 19.0 500
    RS7622A1/T2-02Y(L)H(SR)H-20P0.63 20 1.2 2.5 21.2 600
    RS7622A1/T2-02Y(L)H(SR)H-28P0.63 28 1.2 2.5 22.6 690
    RS7622A1/T2-02Y(L)H(SR)H-38P0.63 38 1.2 2.5 24.2 810
    RS7622A1/T2-02Y(L)H(SR)H-54P0.63 54 1.2 2.5 26.7 980
    RS7622A1/T2-02Y(L)H(SR)H-74P0.63 74 1.2 2.5 29.2 1190
    RS7622A1/T2-02Y(L)H(SR)H-104P0.63 104 1.2 2.5 32.6 1480
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