ACSS (Aluminum Conductor Steel Supported)
It is a high-temperature conductor used in overhead power transmission lines. ACSS conductors are designed to operate efficiently at high temperatures (up to 250°C) without losing their mechanical strength. They are typically used to increase the power capacity of existing transmission lines without the need to modify existing structures.
Key Features of ACSS:
- High-Temperature Operation: ACSS conductors can operate at much higher temperatures compared to ACSR (up to 250°C), which allows them to carry more current
- Sag Reduction: Since the steel core bears the mechanical load, ACSS experiences less sag under high temperatures, maintaining better clearance under long spans
- Longer Life: The steel core is usually protected with a zinc or aluminum coating to prevent corrosion, making the conductor more durable in harsh environments
- Full Conduction of Aluminum: Unlike ACSR, where the aluminum only partially contributes to current conduction, ACSS allows the aluminum strands to fully conduct electrical current, improving efficiency
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