Specifications
ACSS conductor /electrical wire
Standard:ASTM
Used for overhead distribution and transmission lines.
Applications
Used for overhead distribution and transmission lines. Designed to operate continuously at elevated temperatures up to 200oC without loss of strength. It sags less under emergency electrical loadings than ASCR; it is self-damping if prestretched during installation, and the final sags are not affected by long term creep of aluminum. The advantages make ACSS especially useful in reconductoring applications requiring increased current with existing tensions and clearances, new line applications where structures can be economized because of reduced conductor sag, new line applications requiring high emergency loadings, and lines where aeolian vibration is a problem.
Construction
ACSS is a composite concentric-laystranded cable. The steel strands form the central core of the cable around which is stranded one or more layers of aluminum 1350-O wires. ACSS conductors are manufactured in accordance with the requirements of the latest applicable issue of ASTM specification B856. The “O” temper of the aluminum, a fully annealed or soft temper, causes most or all of the mechanical load on ACSS to be carried by the steel. The steel core may consist of 7, 19, 37 or more wires. Class A zinc coating is usually adequate for ordinary environments.
Standards
- B856 Concentric-Lay-Stranded Aluminum Conductors, Coated steel Supported (ACSS)
- B609 Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical Purposes.
- B341 Aluminum-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR/AZ).
- B498 Zinc-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR/AZ)B500 Zinc-Coated (Galvanized), Zinc-5% Aluminum-Mischmetal Alloy-Coated and Aluminum-Coated (Aluminized) Stranded Steel Core for Aluminum Conductors, Steel Reinforced (ACSR).
- B606 High-Strength Zinc-Coated (Galvanized) Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR).
- High-Strength Zinc 5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum and Aluminum-Alloy Conductors, Steel Reinforced.
- The strandings available are identical to those listed in ASTM specification B232.
Options
- Regular-Strength Class C galvanized steel core
- High-Strength Class A galvanized steel core
- Extra-High-Strength Class A galvanized steel core
- Ultra-High-Strength Class A galvanized steel core
- Regular-Strength Class A zinc-5% aluminum misch-metal alloy-coated steel core
- High-Strength Class A zinc-5% aluminum misch-metal alloy-coated steel core
- Extra-High-Strength Class A zinc-5% aluminum misch-metal alloy-coated steel core
- Ultra-High-Strength Class A zinc-5% aluminum misch-metal alloy-coated steel core
- Aluminum-clad steel core
- 250°C Operating Temperature rating utilizing either the zinc-5% aluminum mischmetal alloy-coated steel core wires, or the aluminum-clad steel core wires.
- Non-specular surface finish