This is a specialized covered conductor for medium-voltage overhead power distribution, designed to minimize the risk of outages. Unlike a standard bare conductor, the 3-Layer 25kV AAAC Tree Wire Spacer Cable has a multi-layered protective covering that prevents direct shorts and flashovers caused by contact with trees or other objects. It's an ideal choice for areas with limited space or where lines pass through wooded regions.
Key Specifications & Construction
- Voltage: 25 kV phase-to-phase.
- Conductor: Concentrically stranded All Aluminum Alloy Conductor (AAAC), made from 6201-T81 aluminum alloy. This construction provides high strength and excellent conductivity. Other conductor types like AAC or ACSR are also available.
- Layers: The '3-layer' design typically consists of a semi-conducting layer, the primary insulation, and a final protective outer layer.
- Insulation: The primary insulating layer is cross-linked polyethylene (XLPE).
- Sheath: The outermost layer is a high-density track-resistant polyethylene (HDPE).
- Standards: This cable complies with key industry standards, including ICEA S-121-733, ASTM B231, ASTM B399, and ASTM B232.
Technical Data
- Normal Operating Temperature: C.
- Emergency Overload Temperature: C.
- Short Circuit Temperature: C.
- AC Testing Voltage: The cable is tested at a voltage suitable for a 25 kV rating.