Instrumentation & Telephone Cables
Telephone cables to CW1308 Specification
- One stand of 0.5mm diameter tinned copper conductor
- Colour coded pvc insulation
- Cores laid up and twisted in pairs
- 20 pair and above having a 1/1.38 insulated Earth wire
- PVC sheath
Specifications
| No of Pairs | Nominal OD mm | Weight kg/km |
|---|---|---|
| 2 | 3.5 | 18 |
| 3 | 4.8 | 27 |
| 4 | 5.8 | 32 |
| 5 | 6.3 | 39 |
| 6 | 6.8 | 46 |
| 8 | 7.6 | 58 |
| 10 | 8.3 | 70 |
| 12 | 9.1 | 85 |
| 15 | 9.8 | 102 |
| 20 | 12.0 | 150 |
| 25 | 12.9 | 172 |
| 30 | 13.2 | 211 |
| 40 | 15.0 | 270 |
| 50 | 17.0 | 330 |
| 100 | 27.0 | 660 |
| 200 | 32.0 | 1298 |
For internal use in the interconection of telephone systems
Conductor resistance 98 ohms at 20°C