BS5308 Cable Part 1 Type 3 PE-OS-Lead-SWA-PVC
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Applications
BS5308 cable lead sheath armoured versions (Part 1 Type 3) are generally used when the risk of mechanical damage is increased. The galvanised steel wire armour provides excellent protection. Generally used within industrial process manufacturing plants for communication, data and voice transmission signals and services, Also used for the interconnection of electrical equipment and instruments, typically in petroleum industry. They are well adapted to underground use in industrial applications, in moist areas, where chemical and mechanical protections are needed. The lead sheath brings an enhanced resistance to aromatic hydrocarbons.
Construction
| Conductor | Annealed or tinned copper, sizes: 0.5mm^2 and 0.75mm^2 mulitistranded(Class 5), 0.5 mm^2, 1.0 mm^2 solid(Class 1), 1.5mm^2 or 2.5mm^2, multistranded(Class 2) to BS6360 |
| Insulation | PE (Polyethylene) type 03 to BS6234 |
| Pairing | Two insulated conductors uniformly twisted together with a lay not exceeding 100mm |
| Colour code | See technical information |
| Binder tape | PETP transparent tape |
| Collective screen | Aluminium/polyester tape is applied over the laid up pairs metallic side down in contact with tinned copper drain wire, 0.5mm^2 |
| Inner Sheath | PVC (polyvinyl chloride), type TM 1 or type 6 to BS 6746 |
| Lead Sheath | Lead Alloy |
| Bedding | PVC (polyvinyl chloride), TM 1 to BS 6746 |
| Amour | Galvanized steel wire armour |
| Outer sheath | PVC Sheath, type TM 1 or type 6 to BS 6746 |
| Sheath colour | Black or blue |
Mechanical and Electrical Properties
| Operating temperature | -40C up to + 70C( fixed installation) |
| 0C to +50C(during operation ) | |
| Minimum bending radius | 15 x overall diameter |
| Conductor Area Size | mm^2 | 0.5 | 0.5 | 0.75 | 1.0 | 1.5 | |
| Conductor Stranding | No. x mm | 1 x 0.8 | 16 x 0.2 | 24 x 0.2 | 1 x 1.13 | 7 x 0.53 | |
| Conductor resistance max | ohm/km | 36.8 | 39.7 | 26.5 | 18.2 | 12.3 | |
| Insulation resistance min | Gohm/km | 5 | 5 | 5 | 5 | 5 | |
| Capacitance unbalance at 1 kHz(pair to pair screen) | pF/250m | 250 | |||||
| Max. Mutual Capacitance @ 1 kHz forNon OS or OS cables (except one-pair and two-pairs) | pF/m | 115 | 115 | 115 | 115 | 120 | |
| Max. Mutual Capacitance @ 1 kHz IS/OS cables (include 1 pair and 2 pair) | pF/m | 75 | 75 | 75 | 75 | 85 | |
| Max. L/R Ratio for adjacent cores(Inductance/ Resistance) | μH/ohm | 25 | 25 | 25 | 25 | 40 | |
| Test voltage | Core to core | V | 1000 | 1000 | 1000 | 1000 | 1000 |
| Core to screen | V | 1000 | 1000 | 1000 | 1000 | 1000 | |
| Rated voltage max | V | 300/500 | 300/500 | 300/500 | 300/500 | 300/500 | |
Parameter
| No.of Pairs | No.and Dia. of Wires | Nominal Conductor Cross-Sectional Area | Nominal Thickness of Insulation | Nominal Dia. over Bedding | Nominal Thickness of Armour | Nominal Dia. of Cable | Approx. Weight |
| no./mm | mm^2 | mm | mm | mm | mm | kg/km | |
| 1 | 1/0.80 | 0.5 | 0.5 | 6.3 | 0.9 | 10.7 | 200 |
| 2 | 1/0.80 | 0.5 | 0.5 | 7.1 | 0.9 | 11.5 | 260 |
| 5 | 1/0.80 | 0.5 | 0.5 | 11.6 | 0.9 | 16.2 | 460 |
| 10 | 1/0.80 | 0.5 | 0.5 | 15 | 1.25 | 20.7 | 790 |
| 15 | 1/0.80 | 0.5 | 0.5 | 17.1 | 1.25 | 22.8 | 1100 |
| 20 | 1/0.80 | 0.5 | 0.5 | 19.4 | 1.6 | 26 | 1280 |
| 30 | 1/0.80 | 0.5 | 0.5 | 23 | 1.6 | 29.8 | 1520 |
| 50 | 1/0.80 | 0.5 | 0.5 | 28.9 | 1.6 | 26.1 | 2100 |
| 1 | 16/0.20 | 0.5 | 0.6 | 7 | 0.9 | 11.4 | 250 |
| 2 | 16/0.20 | 0.5 | 0.6 | 7.9 | 0.9 | 12.3 | 300 |
| 5 | 16/0.20 | 0.5 | 0.6 | 13.1 | 0.9 | 17.9 | 560 |
| 10 | 16/0.20 | 0.5 | 0.6 | 17.2 | 1.25 | 22.9 | 970 |
| 15 | 16/0.20 | 0.5 | 0.6 | 19.8 | 1.6 | 26.4 | 1240 |
| 20 | 16/0.20 | 0.5 | 0.6 | 22.3 | 1.6 | 29.1 | 1640 |
| 30 | 16/0.20 | 0.5 | 0.6 | 26.9 | 1.6 | 33.9 | 1770 |
| 50 | 16/0.20 | 0.5 | 0.6 | 33.9 | 2 | 42.1 | 2770 |
| 1 | 1/1.13 | 1 | 0.6 | 7.4 | 0.9 | 11.8 | 290 |
| 2 | 1/1.13 | 1 | 0.6 | 8.4 | 0.9 | 13 | 345 |
| 5 | 1/1.13 | 1 | 0.6 | 14.2 | 1.25 | 19.7 | 790 |
| 10 | 1/1.13 | 1 | 0.6 | 17.4 | 1.25 | 24.3 | 1310 |
| 15 | 1/1.13 | 1 | 0.6 | 21.3 | 1.6 | 28.1 | 1740 |
| 20 | 1/1.13 | 1 | 0.6 | 24.4 | 1.6 | 31.2 | 2040 |
| 30 | 1/1.13 | 1 | 0.6 | 29 | 1.6 | 36.2 | 2180 |
| 50 | 1/1.13 | 1 | 0.6 | 37.3 | 2 | 45.7 | 3500 |
| 1 | 7/0.53 | 1.5 | 0.6 | 8.3 | 0.9 | 12.9 | 320 |
| 2 | 7/0.53 | 1.5 | 0.6 | 9.7 | 0.9 | 14.3 | 420 |
| 5 | 7/0.53 | 1.5 | 0.6 | 16.4 | 1.25 | 22.1 | 940 |
| 10 | 7/0.53 | 1.5 | 0.6 | 21.6 | 1.6 | 28.4 | 1500 |
| 15 | 7/0.53 | 1.5 | 0.6 | 25.2 | 1.6 | 32.2 | 1970 |
| 20 | 7/0.53 | 1.5 | 0.6 | 28.5 | 2 | 36.5 | 2400 |
| 30 | 7/0.53 | 1.5 | 0.6 | 34.3 | 2 | 42.5 | 3170 |
| 50 | 7/0.53 | 1.5 | 0.6 | 43.6 | 2.5 | 53.4 | 5020 |
