G7621 Trackside Communications Cables
APPLICATIONThe cables are designed for installation in trackside bracket runs and for use in open locations (type1) or in tunnels or underground locations (type2).STANDARDLUL Spec G7621 A2 type 1 (for PVC sheath)LUL Spec G7621 A2 type 2 (for LSZH shea…
G7621 Trackside Communications Cables.pdf Contact us

APPLICATION

The cables are designed for installation in trackside bracket runs and for use in open locations (type1) or in tunnels or underground locations (type2).

STANDARD

  • LUL Spec G7621 A2 type 1 (for PVC sheath)

  • LUL Spec G7621 A2 type 2 (for LSZH sheath)

CABLE CONSTRUCTION

  • Core IdentificationConductoBR: Solid plain copper, 0.63/0.9 mm nominal diameter.

  • Insulation: Cellular polyethylene.

  • Cabling Element: Two insulated conductoBR are twisted together to form a pair.

  • Core Wrapping: Non-hygroscopic plastic tape with overlapping.

  • Outer Sheath: PVC/LSZH sheath, coloured violet.

  • 1 Pair Cable: Blue / White

  • 3 Pair Cable: Blue / White; Orange / White; Green / White

ELECTRICAL CHARACTERISTICS AT 20℃

Nominal Conductor Diametermm0.630.9
Maximum Conductor Resistance


Average ValueΩ/km57.528
Individual ValueΩ/km5929
Minimum Insulation Resistance @500 V DCMΩ.km15001500
Maximum Average Mutual CapacitancenF/km5959
Maximum Average Capacitance Unbalance


Pair to PairpF/460m100100
Pair to EarthpF/460m12001200

MECHANICAL AND THERMAL PROPERTIES

  • Minimum Bending Radius: 7.5×OD

  • Temperature Range: -30℃ to +70℃ (during operation); -10℃ +55℃ (during installation)

DIMENSIONS AND WEIGHT

Cable CodeNo. of paiBRNominal Thickness of Sheath
mm
Nominal Overall Diameter
mm
Nominal Weight
kg/km
0.63mm Conductor, 1.15mm Insulated Wire
BR7621A2/T1-02YY-1P0.6312.57.060
BR7621A2/T1-02YY-3P0.6332.59.090
0.9mm Conductor, 1.5mm Insulated Wire
BR7621A2/T1-02YY-1P0.912.58.070
BR7621A2/T1-02YY-3P0.932.510.0120