Instrumentation Cables | |||||||||||||||
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Instrumentation Cables
Type 3 cables (Generation)
Number of pairs | Nominal diameter of conductor mm | Insulation radial thickness mm | Bedding radial thickness mm | Diameter of armour wire mm | Diameter of steel tape mm | Sheath radial thickness (Nom) mm | Overall diameter (Nom) mm | Cable weight (Nom) Kg/Km |
2 | 0.80 | 0.30 | 1.50 | 0.90 | - | 1.90 | 12.10 | 300 |
5 | 0.80 | 0.30 | 1.50 | 0.90 | - | 2.00 | 15.30 | 450 |
10 | 0.80 | 0.30 | 1.50 | 1.25 | - | 2.20 | 18.60 | 730 |
20 | 0.80 | 0.30 | 1.50 | - | 0.50 | 2.40 | 21.80 | 930 |
40 | 0.80 | 0.30 | 2.00 | - | 0.50 | 2.80 | 31.70 | 1570 |
60 | 0.80 | 0.30 | 2.60 | - | 0.50 | 3.10 | 36.10 | 2120 |
100 | 0.80 | 0.30 | 2.60 | - | 0.50 | 3.10 | 42.20 | 2850 |
200 | 0.80 | 0.30 | 3.00 | - | 0.50 | 3.80 | 57.20 | 4860 |
The dimensions given above are for cables with collective screens.
Table 1 Identification of pairs
Two-pair cables are cabled in quad formation and colour coded as follows:
White, red, blue & orange.
Pair Number | Pair Colour | Pair Number | Pair Colour |
1 | White/Blue | 11 | Black/Blue |
2 | White/Orange | 12 | Black/Orange |
3 | White/Green | 13 | Black/Green |
4 | White/Brown | 14 | Black/Brown |
5 | White/Grey | 15 | Black/Grey |
6 | Red/Blue | 16 | Yellow/Blue |
7 | Red/Orange | 17 | Yellow/Orange |
8 | Red/Green | 18 | Yellow/Green |
9 | Red/Brown | 19 | Yellow/Brown |
10 | Red/Grey | 20 | Yellow/Grey |
* Denotes the nominated pair designed for use at carrier frequencies in the range 12 – 108 kHz.