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ZPFU-SH Railway signalling cables
Home  >  > Signal and data transmission cables  > Telecom outdoor cables  > Signalling cables  > ZPFU-SH Railway signalling cables

ZPFU-SH Railway signalling cables
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ZPFU-SH Railway signalling cables Signalling circuits in railway networks
Standards
National  NF C 32-070/C1; SNCF CT 445
Description

Applications

  • Signalling cicuits in railway networks

 

Key-points

  • Halogen free
  • Flame retardant
  • Armoured 

 

Design

 

  • Conductor: Copper wire, 1.13 mm nominal diameter (1 mm² Cross section)
  • Insulation: solid polyethylene
  • Twinning: two conductors are twisted to form a pair
  • Stranding: pairs are helically stranded to get the cable core
  • Core wrapping: plastic tape(s) with overlapping
  • Inner sheath: HFFRLS compound
  • Mechanical protection: two helically applied steel tapes
  • Outer sheath: HFFRLS compound

 

Other versions on request

  • ZPFU: PE/PVC sheaths and NF C 32-070 Category C2 compliant

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Characteristics
Construction characteristics
Outer sheath LSHFFR compound  
Protection Plastic tape with overlapping  
Electromagnetic shield Two steel tapes helically applied  
Halogen free PE  
Lay Up Helically stranded pairs  
Conductor material Aluminium / Polyester tape  
Inner sheath LSHFFR compound  
Dimensional characteristics
Conductor cross-section 1mm²  
Conductor diameter 1.1mm  
Electrical characteristics
Capacitance unbalance max. 400pF/500m  
Max. DC resistance of the conductor at 20°C 18.1Ohm/km  
Dielectric strength core to core DC, min. 4.5kV  
Ohmical resistance of the insulation 5000MOhm.km  
Mutual capacitance 55nF/km  
Usage characteristics
Flame retardant Yes  

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Results   8/8
Select all Items Nexans ref. Name nb pairs Insulation
**17EPFU0014***A* Signalling cable ZPFU-SH 14 pars 14 Solid polyethylene
**17EPFU0021***A* Signalling cable ZPFU-SH 21 pars 21 Solid polyethylene
**17EPFU0001***A* Signalling cable ZPFU-SH 1 par 1 Solid polyethylene
**17EPFU0002***A* Signalling cable ZPFU-SH 2 pars 2 Solid polyethylene
**17EPFU0028***A* Signalling cable ZPFU-SH 28 pars 28 Solid polyethylene
**17EPFU0004***A* Signalling cable ZPFU-SH 4 pars 4 Solid polyethylene
**17EPFU0056***A* Signalling cable ZPFU-SH 56 pars 56 Solid polyethylene
**17EPFU0007***A* Signalling cable ZPFU-SH 7 pars 7 Solid polyethylene
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Electrical Characteristics at 20°C

Parameter

Unit

Value

1. DC conductor resistance
    Maximum


Ω/km


18.1

2. Insulation resistance
    Minimum value after 3 min, 500 VDC


MΩ/km


5000

3. Mutual capacitance
    AC 1000Hz, maximum


nF/km


55

4. Capacitance unbalance
    Maximum


pF/500 m


400

5. Dielectric strength
    Between conductors, 3 min DC voltage


V


4500

6. Attenuation
    20 kHz < f < 45 kHz, maximum
    45 kHz < f < 80 kHz, maximum


dB/km
dB/km


2.5
3.0

7. Characteristic impedance
    20 kHz < f < 45 kHz, nominal
    45 kHz < f < 80 kHz, nominal


Ω
Ω


120±10
115±10


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