This product 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 15kV AAC Tree Wire Spacer Cable has a multi-layered protective covering to prevent direct shorts and flashovers caused by contact with trees or other objects. It's an ideal choice for areas where space is limited or where lines pass through wooded regions.
Key Specifications & Construction
- Voltage: 15 kV phase-to-phase.
- Conductor: Concentrically stranded All Aluminum Conductor (AAC), made from 1350-H19 aluminum. This construction provides excellent conductivity.
- Layers: The '3-layer' design typically refers to 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), which is either track-resistant cross-linked polyethylene (XLPE) or high-density track-resistant polyethylene (HDTRPE).
- Standards: The 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 27 kV for 5 minutes.
Application
Tree wire is a robust solution for primary and secondary overhead distribution, particularly in areas with limited space. The close-proximity configuration minimizes the hardware needed for installation, making it useful in congested spaces like alleyways and tight corridors. The durable covering is effective at preventing direct contact damage and flashovers, thereby improving grid reliability.