ABC systems are used in city power grid transmission lines, with an operating voltage of up to 600/1000 volts. They are mainly used for overhead single-phase and three-phase electricity distribution, as well as other purposes. They have a stable working temperature range of -10°C to 80°C and are economical, with good electrical properties and a lower cost than copper cables. They are also flexible and easy to install, making them suitable for distribution and other applications. They provide safety by preventing electric short circuits and potential fire risks, while being durable against UV radiation, moisture, and corrosion. Additionally, they have an aesthetically pleasing finish and are adaptable to the physical properties and electrical needs of the African environment and market.
Specifications
Conductor Technical Structure | Unit | Value | ||
Structure | Center: steel wire | Nos./mm | 1/2.0 | |
Layer 1:steel wire | 6/2.0 | |||
Layer 2: Aluminum wire | 10/2.57 | |||
Layer 3: Aluminum wire | 16/2.57 | |||
Standard | / | GB/T1179/IEC 61089/ASTM B232 / B232M-2009 / B498 | ||
Stranding direction of outer layer | Direction | Right-hand | ||
Conductor diameter | mm | 16.28±1% | ||
Cross section | mm2 | 156.8±1% | ||
Conductor weight | kg/km | 547.8±1% | ||
Rated tensile strength | kN | 52 | ||
Modulus of Elasticity | GPa | 73.9 | ||
Coefficient of linear expansion | 10-6/℃ | 18.9 | ||
Max. DC Resistance at 20℃ | Ohm/ft | 0.637 | ||
Lay ratio | Aluminum layer | times | 16-wire layer 10-14 10-wire layer 10-16 | |
Steel layer | 6-wire layer 18-30 |
Properties of Aluminum Wire (Before Stranding) | Unit | Value |
Diameter and tolerance | mm | 2.57±0.03 |
Min. tensile strength | MPa | 175 |
Min. elongation at 250mm | % | 1.7 |
Max. resistivity at 20℃ | Ω·mm2/m | 0.028172 |
Properties of Steel wire (Before stranding) | Unit | Value |
Diameter and tolerance | mm | 2.0±0.02 |
Min. tensile strength | MPa | 1410 |
Min. tension at 1% elongation | MPa | 1280 |
Min elongation at 250 mm | % | 3.5 |
Class of zinc coating | / | Class A |
Zinc coating quality | g /mm² | 230 |
Conductor diameter | MM | 6.0 |
Rated tensile strength | KN | / |