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| Telphone Cables |
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| Air Core Subcriber Cables |
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 Application： |
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| Designed to use to in ducts. Cables having 0.5 mm conductor diameter are used for distribution networks and cables having 0.9 mm conductor diameter are used for long distance networks. |
| Construction： |
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Conductor
Solid annealed copper having the diameter of 0.5 and 0.9 mm.
Insulation
Dual insulation of cellular polyethylene covered with a solid skin layer of medium or high-density polyethylene compound
Cable Assembly
Quads, each having special lay length to minimize crosstalk and capacitance unbalance, are assembled into cable core.
Core Covering
A non-hygroscopic dielectric plastic tape having suitable overlap is applied longitudinally or helically over cable core.r interfaces between armour and both jackets (inner and outer)
Outer Jacket (Sheath)
Black linear-low density or medium-density polyethylene compound (acc. to ASTM D 1248) is extruded over core covering.
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Conductor Diameter |
Number of Pairs
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Cable Diameter |
Approximate Net Weight
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Drum Length |
(mm) |
(mm) |
(kg/km) |
(m) |
4 |
7.0 |
42 |
2000 |
05 |
6 |
8.0 |
55 |
2000 |
10 |
8.2 |
72 |
2000 |
2 |
7.5 |
54 |
1200 |
0.9 |
4 |
9.9 |
93 |
1200 |
6 |
11.6 |
127 |
1200 |
10 |
12.0 |
181 |
1200 |
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