Signaling & Telecom Cable

Application:

These cables are used for transfer of signals in railway networks in signalling circuits to connect the signalling equipment.


Product Construction:

Construction - In multiples of Cores / Pairs / Quads
Conductor - Solid /stranded wire(s) of annealed high conductivity copper.
Insulation - PVC / Polyethylene / XLPE 
Core Formation - Insulated Cores / Pairs / Quads laid-up together
Inner / Intermediate Sheath - PVC / Polyethylene / HFFR
Shielding - Dual layer of Aluminium Wire
Additional Covering - Non-Hygroscopic Tape / Chromium Bromate Tape
Armouring - Galvanized Round Wire  / Strip / Double Steel Tape.
Outer Sheath - PVC / Polyethylene / HFFR

Reference Standards:

SNCF CT 445, NF F 55-698, IRS S 63, IRS S76, IRS TC 30, IRS SPC_TC_72, IEC 60332-1-2


Technical Data:

Temperature Range - -30°C to +90°C
Insulation Resistance - ≥5000 MΩ.km
Dielectric Strength - 4.5kV
Mutual Capacitance at 800Hz - ≤ 55 nF/km
Capacitance Unbalance - 400 pF / 500m
Characteristic Impedance - i) For 20 to 45 KHz : 120±10Ω
ii) For 45 to 80 KHz :  115±10Ω
Linera Attenuation - i) For 20 to 45 KHz : ≤ 2.5 dB/km
ii) For 45 to 80 KHz : ≤ 3 dB/km

Features:

Excellent resistance to high and low temperature
Resistance to oil, damp and humid weather conditions
Low reduction factor
Suitable for use on AC systems (Earthed or unearthed) for rated voltage upto 1100 volts
Suitable for use on DC systems for rated voltage upto 1500 volts