Stock Code: SH600522
Super Thermal-resistant Aluminum-alloy Conductor Aluminum-clad Invar Reinforced
ZTT® ET EXPRESSWAY ESSENCETM ZTACIR/AS–350/45
Conductor Technical Structure
| Parameter | Unit | Value | |
| Structure | Center: Aluminum clad Invar wire | Nos./mm | 1/2.88 |
| Layer 1: Aluminum clad Invar wire | 6/2.88 | ||
| Layer 2: ZTAL wire* | 9/4.32 | ||
| Layer 3: ZTAL wire | 15/4.32 | ||
| Standard | / | IEC 61089/ 62641/ 63248 | |
| Stranding direction of outer layer | Direction | Right-hand | |
| Conductor diameter | mm | 25.92 | |
| Cross section | ZTAL wire | mm2 | 351.78 |
| Aluminum-clad Invar wire | 45.6 | ||
| Total | 397.38 | ||
| Conductor weight | kg/km | 1309 | |
| Rated tensile strength | kN | 103.1 | |
| Modulus of Elasticity (E-Modulus) | kN/mm2 | 67.05 /160 (Above Knee Point) | |
| Linear expansion coefficient | 10-6/℃ | 17.52 / 3.0 (Above Knee Point) | |
| DC Resistance at 20℃ | Ω/km | 0.0816 | |
| Max. Working temperature | Continuous | ℃ | 210 (40 years) |
| Short term | 240 (400 hours) | ||
| Lay ratio | ZTAL layer | times | 15-wire layer 10-14 |
| 9-wire layer 10-16 | |||
| Aluminum clad invar layer | 6-wire layer 16-26 | ||
*ZTAL wire: Super thermal resistant aluminum alloy wire AT3
Transmission of high current carrying capacity, suitable for line upgrading without replacing tower. High temperature low sag performance, increase current capacity by 100%, yet no need to replace tower.
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