Product Introduction: Covered Aerial Conductor

Construction

1. Conductor: Concentrically stranded ACSR
2. Inner Layer: Low-Density Track-Resistant Crosslinked Polyethylene (HDTRXLPE)
3. Outer Layer: High-Density Track-Resistant Crosslinked Polyethylene (HDTRXLPE)

Applications and Features

This product is used for primary and secondary overhead distribution where limited space is available or desired for rights-of-way. It is installed the same as bare conductors; however, the covering is effective in preventing direct shorts and instantaneous flashovers should tree limbs or other objects contact conductors in close proximity.

Key applications include:
- Tree Wire: Used for spans where trees crowd the right-of-way, such as in wooded residential areas, when minimal interference with the environment is desired. The covering minimizes power outages due to conductor contact with tree limbs, reducing the need for frequent or severe trimming.
- Covered Aerial MV Cable: Installed with other Covered Aerial MV cables and a supporting messenger through a series of space-maintaining devices (spacers). The resulting close-proximity configuration minimizes the amount of space and hardware required for line installation, particularly useful in congested areas.

Temperature Rating: The covering is rated for 90°C normal operation and 130°C emergency operation. Unless adequate knowledge of the thermal characteristics of the environment is known, the permissible conductor temperature should be reduced by 10°C or in accordance with available data.

Specifications

The product complies with the following standards:
- ASTM B230: Aluminum, 1350-H19 Wire for Electrical Purposes
- ASTM B232: Concentric-Lay-Stranded, Aluminum Conductors, Coated Steel Reinforced (ACSR)
- ASTM B498: Zinc-Coated (Galvanized) Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR)
- ASTM B500: Metallic Coated Stranded Steel Core for use in overhead Electrical Conductors
- ICEA S-121-733: Tree Wire and Messenger Supported Spacer Cable