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

Application

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

Conductors: Solid annealed copper, 1.0mm² nominal cross section area.
Insulation: Solid polyethylene.
Cabling Element: Each two conductors are twisted together to form a pair.
Stranding: Pairs are helically stranded in layers to form the cable core.
Core Wrapping: Plastic tape(s) with overlapping.
Inner Sheath: PE sheath. 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).
Remark: ZPFU: PE/PVC Sheath; ZPFU-SH: LSZH Sheath.

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

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

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