Telecommunication Cable Make-up
- Annealed tinned Solid copper wire , Hard PVC – based core insulation (Mini. Insu. Resistance 5000 mega ohms/Km), every two cores twisted in pairs, pairs twisted in layers with varying layers to minimize crosstalk, overall myler tape wrapping, outer sheath of PVC compound flame-retardant normally grey.
ATC Size of Conductor
Nominal (m.m.) | Avearage Insulation thickness (m.m.) | Nominal Overall Dia. (m.m.) | Max. Conductor Resistance Ohms/Km. at 20°C | Minimum Elongation of Conductor (%) | Resistance Unbalance Maximum (%) | Maximum Average Attenuation at 150 KHz db/Km |
| 0.40 | 0.20±0.05 | 1.00 | 143 | 150 | 3.0 | 12.00 |
| 0.45 | 0.20±0.05 | 1.00 | 100 | 150 | 2.5 | 10.00 |
| 0.50 | 0.20±0.05 | 1.00 | 96 | 150 | 2.5 | 8.25 |
| 0.61 | 0.20±0.05 | 1.10 | 62 | 150 | 2.0 | 6.30 |
| 0.71 | | | | | | |
| 0.91 | | | | | | |
| Mutual Capacitance (nf/Km) | Capacitance Unbalance (pf/Km) | Cross Talk (db/Km) at 150 KHz |
| Minimum Individual: 47.5 | Pair To Pair | Maxi. Avg. | :50 | Pair To Pair | Minimum | :55.0 |
| Minimum Average: 49.0 | | Maxi. Individual | :200 | NEXT | Minimum | :55.0 |
| Minimum Average: 49.0 | Pair To Ground | Maxi. Avg. | :750 | ELFEXT | RMS | :67.8 |
| Maximum Individual: 56.5 | | Maxi. Individual | 3000 | | | |
Colour Code Chart For Telephone Paired Cable upto 25 Pairs.
| Pair No. | Colour Combination |
| 01 | White/Blue |
| 02 | White/Orange |
| 03 | White/Green |
| 04 | White/Brown |
| 05 | White/Grey |
| 06 | Red/Blue |
| 07 | Red/Orange |
| 08 | Red/Green |
| 09 | Red/Brown |
| 10 | Red/Grey |
| 11 | Black/Blue |
| 12 | Black/Orange |
| 13 | Black/Green |
| 14 | Black/Brown |
| 15 | Black/Grey |
| 16 | Yellow/Blue |
| 17 | Yellow/Orange |
| 18 | Yellow/Green |
| 19 | Yellow/Brown |
| 20 | Yellow/Grey |
| 21 | Voilet/Blue |
| 22 | Voilet/Orange |
| 23 | Voilet/Green |
| 24 | Voilet/Brown |
| 25 | Voilet/Grey |
- Make Telephone Instruments cord Wire upto 2,4,6,8 cores in accordance.
- Make Self Supporting Drop Wire With Fiber-Glass Roving Reinforced as strength member in accordance to G/WIR-03/02 July 99.
- Make Telephone Exchange PCM Cables in accordance G/WIR-04/04/01 : 1993 (amndt 1997).
- CAT-5, CAT-5e, CAT-6,CAT6A , CAT7 UTP etc data cables in accordance to International Standards.
Reviews
There are no reviews yet.