01
Application
Armoured instrument cables are typically employed in outdoor settings, where they are deployed either directly into the ground or within conduit systems. These cables are well-suited for use in environments with high moisture levels, such as those found in wet and damp locations.
Construction
| Conductor | Annealed or tinned copper |
| Insulation | PVC |
| Pairing | twisted together with a lay |
| Colour code | As request |
| Binder tape | PETP |
| Collective screen | Aluminum Foil Tape with tinned copper drain wire, 0.5mm^2 |
| Inner Sheath | PE Or PVC |
| Amour | Galvanized steel wire armour |
| Outer sheath | PVC Or PE Sheath, type TM 1 to BS 6746 |
| Sheath colour | Black |
Parameter
| No.of Pairs | No.and Dia. of Wires | Nominal Conductor Cross-Sectional Area | Nominal Thickness of Insulation | Nominal Thickness of bedding | Nominal Dia. over Bedding | Nominal Thickness of Armour | Nominal Thickness of Sheath | Nominal Dia. of Cable | Approx. Weight |
| no./mm | mm^2 | mm | mm | mm | mm | mm | mm | kg/km | |
| 1 | 1/0.8 | 0.5 | 0.5 | 0.8 | 5.5 | 0.9 | 1.3 | 9.7 | 198 |
| 2 | 1/0.8 | 0.5 | 0.5 | 0.8 | 6.8 | 0.9 | 1.3 | 11 | 258 |
| 5 | 1/0.8 | 0.5 | 0.5 | 1.1 | 10.9 | 0.9 | 1.4 | 15.3 | 458 |
| 10 | 1/0.8 | 0.5 | 0.5 | 1.2 | 14.4 | 1.25 | 1.6 | 19.9 | 788 |
| 15 | 1/0.8 | 0.5 | 0.5 | 1.2 | 16.5 | 1.25 | 1.6 | 22 | 1098 |
| 20 | 1/0.8 | 0.5 | 0.5 | 1.3 | 18.8 | 1.6 | 1.7 | 25.2 | 1278 |
| 30 | 1/0.8 | 0.5 | 0.5 | 1.3 | 22.3 | 1.6 | 1.8 | 28.9 | 1518 |
| 50 | 1/0.8 | 0.5 | 0.5 | 1.5 | 28.5 | 1.6 | 2 | 35.5 | 2098 |
| 1 | 16/0.2 | 0.5 | 0.6 | 0.8 | 6.2 | 0.9 | 1.3 | 10.4 | 248 |
| 2 | 16/0.2 | 0.5 | 0.6 | 0.8 | 7.6 | 0.9 | 1.3 | 11.8 | 298 |
| 5 | 16/0.2 | 0.5 | 0.6 | 1.1 | 12.4 | 0.9 | 1.5 | 17 | 558 |
| 10 | 16/0.2 | 0.5 | 0.6 | 1.2 | 16.5 | 1.25 | 1.6 | 22 | 968 |
| 15 | 16/0.2 | 0.5 | 0.6 | 1.3 | 19.2 | 1.6 | 1.7 | 25.6 | 1238 |
| 20 | 16/0.2 | 0.5 | 0.6 | 1.3 | 21.7 | 1.6 | 1.8 | 28.3 | 1638 |
| 30 | 16/0.2 | 0.5 | 0.6 | 1.5 | 26.4 | 1.6 | 1.9 | 33.2 | 1768 |
| 50 | 16/0.2 | 0.5 | 0.6 | 1.7 | 33.4 | 2 | 2.1 | 41.4 | 2768 |
| 1 | 24/0.2 | 0.75 | 0.6 | 0.8 | 6.7 | 0.9 | 1.4 | 10.7 | 278 |
| 2 | 24/0.2 | 0.75 | 0.6 | 0.9 | 8.4 | 0.9 | 1.4 | 12.6 | 328 |
| 5 | 24/0.2 | 0.75 | 0.6 | 1.2 | 13.8 | 1.25 | 1.6 | 19.1 | 748 |
| 10 | 24/0.2 | 0.75 | 0.6 | 1.3 | 18.4 | 1.6 | 1.8 | 24.1 | 1258 |
| 15 | 24/0.2 | 0.75 | 0.6 | 1.3 | 21.1 | 1.6 | 1.9 | 26.8 | 1478 |
| 20 | 24/0.2 | 0.75 | 0.6 | 1.5 | 24.4 | 1.6 | 2 | 31.2 | 1888 |
| 30 | 24/0.2 | 0.75 | 0.6 | 1.7 | 29.5 | 2 | 2.1 | 36.8 | 2438 |
| 50 | 24/0.2 | 0.75 | 0.6 | 2 | 37.6 | 2.5 | 2.4 | 47.1 | 3208 |
| 1 | 1/1.13 | 1 | 0.6 | 0.8 | 6.6 | 0.9 | 1.3 | 10.8 | 288 |
| 2 | 1/1.13 | 1 | 0.6 | 0.8 | 8 | 0.9 | 1.4 | 12.4 | 343 |
| 5 | 1/1.13 | 1 | 0.6 | 1.2 | 13.5 | 1.25 | 1.5 | 18.8 | 788 |
| 10 | 1/1.13 | 1 | 0.6 | 1.2 | 17.7 | 1.25 | 1.7 | 23.4 | 1308 |
| 15 | 1/1.13 | 1 | 0.6 | 1.3 | 20.6 | 1.6 | 1.8 | 27.2 | 1738 |
| 20 | 1/1.13 | 1 | 0.6 | 1.5 | 23.8 | 1.6 | 1.8 | 30.4 | 2038 |
| 30 | 1/1.13 | 1 | 0.6 | 1.5 | 28.4 | 1.6 | 2 | 35.4 | 2178 |
| 50 | 1/1.13 | 1 | 0.6 | 2 | 36.6 | 2 | 2.2 | 44.8 | 3498 |
| 1 | 7/0.53 | 1.5 | 0.6 | 0.8 | 7.5 | 0.9 | 1.4 | 11.7 | 318 |
| 2 | 7/0.53 | 1.5 | 0.6 | 0.9 | 9.3 | 0.9 | 1.5 | 13.9 | 418 |
| 5 | 7/0.53 | 1.5 | 0.6 | 1.2 | 15.6 | 1.25 | 1.6 | 21.4 | 938 |
| 10 | 7/0.53 | 1.5 | 0.6 | 1.3 | 20.9 | 1.6 | 1.8 | 27.2 | 1498 |
| 15 | 7/0.53 | 1.5 | 0.6 | 1.5 | 24.6 | 1.6 | 1.9 | 31 | 1968 |
| 20 | 7/0.53 | 1.5 | 0.6 | 1.5 | 27.8 | 1.6 | 2 | 35.6 | 2398 |
| 30 | 7/0.53 | 1.5 | 0.6 | 1.7 | 33.7 | 2 | 2.2 | 42.1 | 3168 |
| 50 | 7/0.53 | 1.5 | 0.6 | 2 | 43 | 2.5 | 2.5 | 53 | 5018 |
Steel Wire armored: how to protect instrument cable
The protective effect of steel wire armour on instrument cables can be broadly categorised into the following aspects:
The mechanical protection afforded by steel wire armour is as follows: The utilisation of steel wire armour provides robust mechanical protection, enabling the cable to withstand external extrusion, stretching and damage, thereby enhancing the longevity of the cable.
The tensile performance of the steel wire armour can be described as follows: The tensile performance of the cable can be enhanced by the incorporation of steel wire armour, thereby enabling the cable to withstand a specified degree of tensile stress. It is appropriate for applications that necessitate long-distance installation or the ability to withstand specific tensile forces.
The ability of the steel wire armour to resist compression forces is also a beneficial quality. Additionally, steel wire armour can provide a certain degree of compression resistance, thereby enabling the cable to withstand a certain amount of external pressure. It is suitable for use in underground installations or in contexts where a certain degree of pressure resistance is required.
The provision of protective shielding: Additionally, steel wire armour can provide a certain electromagnetic shielding effect, thereby reducing the impact of external electromagnetic interference on the internal signals of the cable.
In general, steel wire armour can provide effective mechanical protection, tensile performance, compression resistance and electromagnetic shielding for instrument cables. This ensures the protection of the signals inside the cable from external interference and mechanical damage, thus guaranteeing the stability of signal transmission and reliability.