
Gap-type Thermal-resistant Aluminum-alloy Conductor Extra-high-strength Steel Reinforced
Characteristics: -Super thermal resistant aluminum alloy, double current carrying capacity at continuous working temperature 210℃. -Extra high strength steel core, to support the whole tension of conductor and stress on steel core only. -Gap structure between aluminum layer and steel core. T shaped aluminum alloy wire to form the gap & tube structure. Gap filled with grease, steel core slip freely for the load transfer during stringing. -High temperature low sag performance, upgrading the line capacity without replacing tower, saving space and land resources. -Convenient installation.Standards:
| IEC 61089 | Round wire concentric lay overhead electrical stranded conductors |
| IEC 62219 | Overhead electrical conductors-Formed wire, concentric lay, stranded conductors |
| IEC 62420 | Concentric lay stranded overhead electrical conductors containing one or more gap(s) |
| EN IEC 62641 | Conductors for overhead lines – Aluminium and aluminium alloy wires for concentric lay stranded conductors |
| EN IEC 63248 | Conductors for overhead lines – Coated or cladded metallic wire for concentric lay stranded conductors |
| EN 50182 | Conductors for overhead lines – Round wire concentric lay stranded conductors |
| Other international standards according to customers’ requirements | |

| Code Name | Cross Section of Al (mm2) | Cross Section of Steel (mm2) | Diameter of Structure 1 (mm) | Diameter of Structure 2 (mm) | Rated Tensile Strength (kN) | Max. DC Resistance @20℃ (Ω/km) | Nominal Weight (kg/km) | Current Capacity (A) |
| GZTACSR-185/30 | 197.60 | 31.67 | 19.7 | 18.7 | 81.1 | 0.1483 | 801 | 1095 |
| GZTACSR-260/40 | 265.30 | 43.11 | 22.6 | 21.7 | 109.3 | 0.1106 | 1084 | 1335 |
| GZTACSR-370/40 | 370.50 | 40.08 | 26.0 | 24.8 | 121 | 0.0792 | 1348 | 1651 |
| GZTACSR-450/50 | 444.71 | 49.48 | 28.4 | 27.2 | 147.4 | 0.0660 | 1644 | 1867 |
| GZTACSR-500/60 | 523.50 | 63.55 | 31.2 | 29.5 | 183.3 | 0.0560 | 1951 | 2087 |
| GZTACSR-630/50 | 642.70 | 52.83 | 34.0 | 32.0 | 186.0 | 0.0456 | 2195 | 2386 |
| Other designs according to customers’ requirements | ||||||||
Note: Current capacity is based on ambient temperature 40℃, Wind velocity 0.5m/s, Wind direction: 0 Degree, Solar radiation 0.1w/cm2, Absorptivity of conductor surface 0.9.
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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