ACSR Linnet Aluminum Conductor Steel Reinforced 232M Bare Overhead Transmission Lines
ACSR Linnet 26/7 Aluminum Conductor Steel Reinforced Bare Conductor Overhead transmission lines ASTM232/232M Standard
Application
ACSR conductors are widely used for electrical power transmission over long distances, since they are ideal for long overhead lines spans. They are also used as a messenger for supporting overhead electrical cables.
Bare Conductor Electrical Cable STANDARD
Basic design to BS 215-2 / BS EN 50182 / IEC 61089 / ASTM B 232/B 232M / DIN 48204 / JIS C 3110 standards.
Note: The values of current rating mentioned in above Table are based on wind velocity of 0.6 metre/second, solar heat radiation of 1200 watt/metre2, ambient temperature of 50° C & conductor temperature of 80°C.
Bare Conductor Electrical Cable CONSTRUCTION
ACSR conductors are formed by several wires of aluminium and galvanized steel, stranded in concentric layers. The wire or wires which form the core, are made of galvanized steel and the external layer or layers, are of aluminium. Galvanized steel core consist normally of 1, 7 or 19 wires. The diameters of steel and aluminium wires can be the same, or different.
By varying the relative proportions of aluminium and steel, the required characteristics for any particular application can be reached. A higher U. T. S. Can be obtained, by increasing steel content, and a higher current carrying capacity by increasing aluminium content.
ELECTRICAL PROPERTIES
| density@20ºC | Aluminium: 2.703 kg/dm |
| Galvanised Steel: 7.80 kg/dm | |
| Temperature Coefficient@20°C | Aluminium: 0.00403 (°C) |
| resistivity@20°C | Aluminium: Should not exceed 0.028264 |
|
linear Expansivity
|
Aluminium: 23 x10 (°C) |
| Galvanised Steel: 11.5 x10 (1/°C) |
SERVICE CONDITIONS
| Ambient Temperature | -5°C - 50°C |
| Wind Pressure | 80 – 130kg/m |
| Seismic Acceleration | 0.12 - 0.05g |
| Isokeraunic level | 10 – 18 |
| relative Humidity | 5 – 100% |
TECHNICAL DATA
| Numbers of Wires | Modules of Elasticity | Coeficient of linear Expansion | |||
| AL | STEEL | Kg/mm2 | Lb/in2 | 1/Cº | 1/Fº |
| 6 | 1 | 81 | 11.5 x106 | 19.1 x10-6 | 10.6 x10-6 |
| 6 | 7 | 77 | 11.0 x106 | 19.8 x10-6 | 11.0 x10-6 |
| 12 | 7 | 107 | 15.2 x106 | 15.3 x10-6 | 8.5 x10-6 |
| 18 | 1 | 67 | 9.5 x106 | 21.2 x10-6 | 11.8 x10-6 |
| 24 | 7 | 74 | 10.5 x106 | 19.6 x10-6 | 10.9 x10-6 |
| 26 | 7 | 77 | 10.9 x106 | 18.9 x10-6 | 10.5 x10-6 |
| 28 | 7 | 79 | 11.2 x106 | 18.4 x10-6 | 10.2 x10-6 |
| 30 | 7 | 82 | 11.6 x106 | 17.8 x10-6 | 9.9 x10-6 |
| 30 | 19 | 80 | 11.4 x106 | 18.0 x10-6 | 10.0 x10-6 |
| 32 | 19 | 82 | 11.7 x106 | 17.5 x10-6 | 9.7 x10-6 |
| 54 | 7 | 70 | 9.9 x106 | 19.3 x10-6 | 10.7 x10-6 |
| 54 | 19 | 68 | 9.7 x106 | 19.4 x10-6 | 10.8 x10-6 |
Parameters
| AMERICAN STANDARD ASTM B232-B232 M1999 | ||||||||
| Code Word | Stranding | Stranding | Nominal Overall Diameter | Mass | Rated Strength | |||
| Aluminium Wires | Steel Wires | |||||||
| Number | Diameter | Number | Diameter | |||||
| mm | mm | mm | kg/Km | kN | ||||
| Raven | 6/1 | 6 | 3.37 | 1 | 3.37 | 10.11 | 216.08 | 19.48 |
| Minorca | 12/7 | 12 | 2.44 | 7 | 2.44 | 12.22 | 411.18 | 50.26 |
| Quail | 6/1 | 6 | 3.78 | 1 | 3.78 | 11.35 | 272.04 | 23.58 |
| Leghorn | 12/7 | 12 | 2.69 | 7 | 2.69 | 13.46 | 499.28 | 60.5 |
| Guinea | 12/7 | 12 | 2.92 | 1 | 2.92 | 14.63 | 589.76 | 71.17 |
| Pigeon | 6/1 | 6 | 4.25 | 1 | 4.25 | 12.75 | 343.02 | 29.45 |
| Dotterel | 12/7 | 12 | 3.08 | 7 | 3.08 | 15.42 | 656.13 | 76.95 |
| Dorking | 12/7 | 12 | 3.2 | 7 | 3.2 | 16.03 | 707.92 | 83.18 |
| Brahma | 16/19 | 16 | 2.86 | 19 | 2.48 | 18.14 | 1003.91 | 126.33 |
| Cochin | 12/7 | 12 | 3.37 | 7 | 3.37 | 16.87 | 783.96 | 92.08 |
| Penguin | 6/1 | 6 | 4.77 | 1 | 4.77 | 14.3 | 432.76 | 37.14 |
| Partidge | 26/7 | 26 | 2.57 | 7 | 2 | 16.31 | 546.01 | 50.26 |
| Waxwing | 18/1 | 18 | 3.09 | 1 | 3.09 | 15.47 | 430.23 | 30.69 |
| Ostrich | 26/7 | 26 | 2.73 | 7 | 2.12 | 17.27 | 613.42 | 56.49 |
| Oriole | 30/7 | 30 | 2.69 | 1 | 2.69 | 18.82 | 783.37 | 76.95 |
| Linnet | 26/7 | 26 | 2.89 | 7 | 2.25 | 18.29 | 687.53 | 62.72 |
| Widgeon | 18/1 | 18 | 3.47 | 1 | 3.47 | 17.37 | 542.88 | 38.7 |
| Lark | 30/7 | 30 | 2.92 | 7 | 2.92 | 20.47 | 925.34 | 90.3 |
| Ibis | 26/7 | 26 | 3.14 | 7 | 2.44 | 19.89 | 812.54 | 72.51 |
- overhead transmission line use bare conductor(ACSR, AAC, AAAC etc)
- 1-35kv overhead transmission line use insulated conductor
- power distribution use 0.6/1kv, 1.8/3kv PVC/XLPE/PE insulated LV(low voltage) power cable armored or unarmored
- power distribution use 3.6/6kv, 6/10kv,8.7/10kv, 8.7/15kv, 12/20kv, 21/35kv, 26/35kv XLPE insulated MV(medium voltage) power cable armored or unarmored;
- 300/300V, 300/500V, 450/750V cotrol cable, house wire
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