Transmission line segments are essential components in electrical power transmission networks, designed to carry high-voltage electricity over long distances with minimal losses.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Resistance | < 0.1 ohm/km | |
| Sag Tolerance | As per design span and tension | |
| Conductor Type | ACSR (Aluminum Conductor Steel Reinforced) | |
| Voltage Rating | 69 kV to 765 kV | |
| Current Capacity | Up to 4000 A | |
| Insulation Level | Based on IEC 60840 or IEEE 48 | |
| Temperature Range | -40°C to 90°C | |
| Length Per Segment | Typically 1000 to 5000 meters |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
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The main types include overhead lines (using towers and air insulation), underground cables (with dielectric insulation for urban areas), and subsea cables (designed for underwater environments with enhanced protection).
They minimize losses by using high-conductivity materials like aluminum, optimizing conductor bundling to reduce corona discharge, and employing proper insulation to prevent leakage and thermal issues.
Key standards include IEC 60840 for high-voltage cables, IEEE 48 for testing, and ISO 9001 for quality management, ensuring safety and performance compliance.
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