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ZPFU & ZPFU-SH Main & Local Signalling Cables (DC Electrifi ed Lines)

ZPFU & ZPFU-SH Main & Local Signalling Cables (DC Electrifi ed Lines)

Application

The cables are designed for the main signalling circuits of 1500V DC electrifi ed lines.

Standards

SNCF CT 445

NF F 55-698

Construction

Conductors: Solid annealed copper, 1.0mm² nominal cross section area.

Insulation: Solid polyethylene.

Cabling Element: Two conductors are twisted to form a pair.

Stranding: Pairs are helically stranded to form the cable core.

Core Wrapping: Plastic tape(s) with overlapping.

Inner Sheath: PE. LSZH FR option can be offered upon request to NF C 32 070.2.2 (C1).

Mechanical Protection: Two helically applied steel tapes (0.15, 0.2/0.5mm, depending on pair count).

Outer Sheath: PE/PVC. LSZH FR option can be offered upon request to NF C 32 070.2.2 (C1).

Remarks: ZPFU: PE/PVC Sheath; ZPFU-SH: LSZH Sheath.

Electrical Characteristics at 20℃

Nominal Conductor Diameter mm 1.13 1.38
Nominal Cross Section Area mm² 1.0 1.5
Maximum Conductor Resistance (DC) Ω/km 18.1 12.31
Minimum Insulation Resistance @500 V DC (3mins) MΩ.km 5000 5000
Maximum Mutual Capacitance @1000Hz (AC) nF/km 55 55
Maximum Capacitance Unbalance @1000Hz pF/500 m 400 400
Attenuation @45KHz dB/km 2.5 2.5
Characteristic Impedance @45KHz Ω 120 120
Dielectric Strength, conductor to conductor (DC voltage 3secs) V 4500 4500
Operating Voltage (AC/DC) V 450/750 450/750

Mechanical and Thermal Properties

Minimum Bending Radius: 8×OD (static); 16×OD (dynamic)

Temperature Range: -40℃ to +70℃ (during operation); -20℃ to +50℃ (during installation)

Dimensions And Weight

Cable Code No. of
Pairs
Nominal Sheath Thickness
mm
Nominal Overall
Diameter
mm
Nominal
Weight
kg/km
Armour
Thickness
mm
Inner Outer
1.13mm Conductor, 2.3 Insulated Wire
RS/ZPFU-2Y2YB2Y-1P1S 1 1.0 1.5 11.7 207 0.15
RS/ZPFU-2Y2YB2Y-2P1S 2 1.0 1.5 12.9 257 0.2
RS/ZPFU-2Y2YB2Y-4P1S 4 1.0 1.6 16.8 509 0.2
RS/ZPFU-2Y2YB2Y-7P1S 7 1.0 1.7 19.0 653 0.5
RS/ZPFU-2Y2YB2Y-14P1S 14 1.2 1.8 24.1 1011 0.5
RS/ZPFU-2Y2YB2Y-21P1S 21 1.2 2.0 27.8 1304 0.5
RS/ZPFU-2Y2YB2Y-28P1S 28 1.2 2.2 31.0 1594 0.5
RS/ZPFU-2Y2YB2Y-56P1S 56 1.3 2.5 40.5 2630 0.5