A cable includes: a linear conductor; a plurality of resin hollow tubes which are disposed around the conductor so that an air layer is formed around the conductor and which extend in a longitudinal direction of the conductor; an insulating protective member configured to protect the conductor and the plurality of hollow tube; and a partitioning portion provided in at least one hollow tube among the plurality of hollow tubes, the partitioning portion being configured to partition an interior of the hollow tube.

A cable includes: a linear conductor; a plurality of resin hollow tubes which are disposed around the conductor so that an air layer is formed around the conductor and which extend in a longitudinal direction of the conductor; an insulating protective member configured to protect the conductor and the plurality of hollow tube; and a partitioning portion provided in at least one hollow tube among the plurality of hollow tubes, the partitioning portion being configured to partition an interior of the hollow tube.

An automated apparatus for installing a sleeve on a cable includes a split funnel assembly, a cable feeding mechanism, a robot comprising a robot tool mounting flange and a plurality of robot motors, a sleeve gripper mounted to the robot tool mounting flange, a plurality of heaters, and a computer configured to output commands in accordance with a predetermined computer program. The split funnel assembly includes an actuator and a split funnel comprising a pair of funnel halves which are able to open and close in response to activation of the actuator. Each funnel half comprises a cable guide channel and a funnel extension. While the split funnel is in the funnel closed state, the funnel extensions form a seat for the sleeve and the cable guide channels form a repeatable path for the cable to follow through the funnel. The apparatus further includes a cable centering gripper, a cable clamp assembly, a slug puller assembly, and a ground lead management system.