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PVC Covered Conductor BS 6485 - Reliable China Suppliers and Factory for Overhead Power Lines
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| Code Word | Nominal cross-sectional area | Stranding and Wire Diameter | Approximate Overall Diameter of Bare Conductor | Maximum Resistance per kilometre at 20 °C | Approximate Breaking Load | Approximate Overall Diameter of Covered Conductor | Approximate Mass per kilometre of Covered Conductor |
|---|---|---|---|---|---|---|---|
| Type 8 | Type 8 | ||||||
| mm² | mm | mm | Ω | kN | mm | kg/km | |
| Midge | 22 | 7/2.06 | 6.18 | 1.227 | 3.99 | 8.2 | 100 |
| Aphis | 25 | 3/3.35 | 7.2 | 1.081 | 4.11 | 9.2 | 133 |
| Gnat | 25 | 7/2.21 | 6.63 | 1.066 | 4.59 | 8.8 | 118 |
| Weevil | 30 | 3/3.66 | 7.9 | 0.9082 | 4.86 | 10.1 | 158 |
| Mosquito | 35 | 7/2.59 | 7.77 | 0.7762 | 6.03 | 10 | 156 |
| Ladybird | 40 | 7/2.79 | 8.37 | 0.6689 | 6.87 | 10.6 | 177 |
| Ant | 50 | 7/3.10 | 9.3 | 0.5419 | 8.28 | 11.7 | 200 |
| Fly | 60 | 7/3.40 | 10.2 | 0.4505 | 9.9 | 12.4 | 249 |
| Bluebottle | 70 | 7/3.66 | 11 | 0.3881 | 11.34 | 13.2 | 285 |
| Earwing | 75 | 7/3.78 | 11.3 | 0.3644 | 11.94 | 13.6 | 302 |
| Grasshopper | 80 | 7/3.91 | 11.7 | 0.3406 | 12.78 | 13.9 | 319 |
| Clegg | 90 | 7/4.17 | 12.5 | 0.2994 | 14.53 | 14.7 | 359 |
| Wasp | 100 | 7/4.39 | 13.17 | 0.2702 | 16 | 16 | 360 |
| Beetle | 100 | 19/2.67 | 13.4 | 0.2704 | 17.42 | 15.6 | 387 |
| Bee | 125 | 7/4.90 | 14.7 | 0.2169 | 19.94 | 16.9 | 482 |
| Cricket | 150 | 7/5.36 | 16.1 | 0.1813 | 23.85 | 18.3 | 567 |
| Hornet | 150 | 19/3.25 | 16.3 | 0.1825 | 27.7 | 18.5 | 538 |
| Caterpillar | 175 | 19/3.53 | 17.7 | 0.1547 | 28.63 | 19.9 | 646 |
| Chafer | 200 | 19/3.78 | 18.9 | 0.1349 | 32.4 | 21.7 | 690 |
| Spider | 225 | 19/3.99 | 20 | 0.1211 | 36.01 | 22.2 | 809 |
| Cockroach | 250 | 19/4.22 | 21.1 | 0.1083 | 40.4 | 23.3 | 900 |
| Butterfly | 300 | 19/4.65 | 23.3 | 0.08916 | 48.7 | 25.5 | 1082 |
| Moth | 350 | 19/5.00 | 25 | 0.07711 | 56.37 | 27.2 | 1241 |
| Drone | 350 | 37/3.58 | 25.1 | 0.07741 | 57.45 | 27.3 | 1222 |
| Locust | 400 | 19/5.36 | 26.8 | 0.0671 | 64.73 | 29 | 1416 |
| Centipede | 400 | 37/3.78 | 26.5 | 0.06944 | 63.1 | 28.7 | 1353 |
| Maybug | 450 | 37/4.09 | 28.6 | 0.05931 | 74.01 | 30.8 | 1573 |
| Scorpion | 500 | 37/4.27 | 29.9 | 0.05441 | 79.98 | 32.1 | 1706 |
| Cicada | 600 | 37/4.65 | 32.6 | 0.04588 | 94.95 | 34.8 | 2010 |
| Tarantula | 750 | 37/5.23 | 36.6 | 0.03627 | 120.1 | 38.8 | 2519 |
Frequently Asked Questions
What is the range of nominal cross-sectional areas available?
The nominal cross-sectional area for this range of covered conductors starts at 22 mm² (Midge) and goes up to 750 mm² (Tarantula), catering to various electrical transmission capacities.
How does the Type 8 covering affect the overall conductor diameter?
The Type 8 covering increases the overall diameter. For example, the Midge conductor has a bare overall diameter of 6.18 mm, which increases to 8.2 mm when covered.
What is the maximum resistance per kilometre for these conductors at 20 °C?
The maximum resistance varies by size, ranging from 1.227 Ω/km for the smallest size (Midge, 22 mm²) down to 0.03627 Ω/km for the largest size (Tarantula, 750 mm²).
What is the approximate breaking load of the Tarantula conductor?
The Tarantula conductor, with a nominal cross-sectional area of 750 mm², features the highest approximate breaking load in this table at 120.1 kN.
How does stranding configuration change with conductor size?
Smaller conductors typically use a 3-wire or 7-wire stranding (e.g., 3/3.35 for Aphis, 7/2.06 for Midge), while larger conductors utilize 19-wire or 37-wire configurations (e.g., 19/5.36 for Locust, 37/5.23 for Tarantula).
What is the approximate mass per kilometre for the Type 8 covered Midge conductor?
The Type 8 covered Midge conductor has an approximate mass of 100 kg/km, which is the lightest option in this product series.