Telephone Cables

Copper-Type:

Extracted from an electrolytic cathode grade of 99.97% purity using an 8mm wire rod

IS Standard for Conductors is cited:

IS 8130: 1984 with the most recent revisions

Construction of Conductors:

A single solid with conductor sizes of 0.4 and 0.5 mm

Typical base for insulation:

High density polythylene of a special grade

Typical Base for Jackets:

FR (Flame Retardant) PVC compound jacketing constructed of virgin PVC resin

Style of jacketing for every pair:

Tubular Extrusion

Rip cord:

Nylon
Nominal Size Unit 0.4 0.5
Conductor (Solid ABC)
mm
0.4
0.5
Insulation Material
__
HDPE
HDPE
Insulation Thickness(Nom)
mm
0.17
0.2
Insulation Diameter (Nom)
mm
0.74
0.92
Rip Cord
__
Nylon – placed under Jacket for Jacket stripping
Conductor Resistance (max.) at 20 °C
Ohm/Km
143
92.2
Unit of Mutual Capacitance : (Max.)
nF/km
50
50
Capacitance Unbalance Pair to Pair (max.)
pF/km
250
250
Dielectric Test Voltage
kV
0.75 KVc for 1min
0.75 KVc for 1min
No of Pair Available
__
1 Pair,2 Pair, 3 Pair,4 Pair,5 Pair,10 Pair,20 Pair, 50 pair