Voltage 600V or less Construction Sino-cables type covered line wire(ASTM) is manufactured with aluminum alloy 1350-H19, 6201-T81,or ACSR conductors insulated with low density PE, or high density PE or XLPE. Standard ASTM B230, B231, B232, B399, B498, or other standards required by customers. Applications Sino cables type covered line wire(ASTM) is primarily designed for use on overhead secondary distribution lines. Covered Line Wire is not an electrically insulated conductor and is treated as a bare conductor when installed. The insulation provides protection against circuit interruption due to weather. Package coil, steel/wooden reel, wooden reel or steel reel.