Intercity railways - Balise cables_SPFB

SPFB

Speed control (French system)
Intercity railways - Balise cables

Benefits

  • Can be used in an ERTMS system over a short distance

Applications

  • Cable installed along tracks, intended for speed control by balise (KVB) circuits
  • Links the speed balise’s digital transponder, placed between the rails, to the encoder located inside the switchgear substation

General characteristics

schéma coupe SPFB

 

 

  1. Red copper stranded core - Class 2
  2. Insulation: coloured polyethylene
  3. Wiring
  4. Polyethylene water-blocking internal sheath
  5. Galvanised steel braid armour
  6. Outer jacket black lead-free PVC + marking + metric
Mechanical
  • Flexible cable
  • Fire resistance NFC 32070.2.1 (flame retardant) and IEC 60332-1
  • Operating temperature: 70°C
  • Resistant to mineral oils, liquid fuels and ozone
  • Bending radius:
    • Static: 8 x D, 
    • Dynamic: 16 x D
  • Duct installation
Electrical
  • Linear resistance: 36Ω/km
  • Operating voltage: 500V
  • Characteristic impedance: 120Ω at 100kHz
  • Linear attenuation: < 5dB/km at 50kHz

Range

 

Composition

Cross-sectional area 
of core 
(mm2)

Composition 
of core
Nb x Ømm

Diameter 
of insulation
(mm)

Diameter 
of sheath
(mm)

Net weight
(kg/km)

Reel format
Length (m)

M1321

2 x

0,5

7 x 0,32

1,9

9,7

97

B 1000

  • Other formats available on request

Norms and standards

General standards
  • SNCF CT 446 specification
  • SNCF approved 
  • Available in halogen-free version

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