Connection joint for cables for a cable stringing plant, comprising at least one first tubular element (18) to which a first segment (22) of a flexible member (19) is attached and positioned rotatable, at least with respect to a longitudinal axis (L) of the joint, inside a second tubular element (23) open at a first end and closed at the other end by a bottom wall (25); the bottom wall (25) comprises at least one hole (26) from which a second segment (27) of the flexible member (19) emerges; the second segment (27) is attached to a portion (32) of a third tubular element (31); the second and third tubular elements (23, 31) are provided on opposite ends with a corresponding hole (29, 35) directed substantially in a longitudinal direction and able to house a respective segment of cable (11a, 11b) to be laid.

Connection joint for cables for a cable stringing plant, comprising at least one first tubular element (18) to which a first segment (22) of a flexible member (19) is attached and positioned rotatable, at least with respect to a longitudinal axis (L) of the joint, inside a second tubular element (23) open at a first end and closed at the other end by a bottom wall (25); the bottom wall (25) comprises at least one hole (26) from which a second segment (27) of the flexible member (19) emerges; the second segment (27) is attached to a portion (32) of a third tubular element (31); the second and third tubular elements (23, 31) are provided on opposite ends with a corresponding hole (29, 35) directed substantially in a longitudinal direction and able to house a respective segment of cable (11a, 11b) to be laid.

A breakaway coupler includes a main body and a secondary body, removably attached to the main body. First and second attachment features are formed on the main and secondary bodies to permit attachment to first and second structures. A breakaway member connects the main and secondary bodies. A guide channel passes through an overlapped portion of the main and secondary bodies and accepts a cable therein. A blade passes across the guide channel to sever the cable when the secondary body is detached from the main body. In operation, a cable clamp frictionally holds the cable. The cable clamp is connected to the breakaway coupler, which is in turn connected to a fixed structure, e.g., a pole. When an excess force is applied to the cable, the main and secondary bodies of the breakaway coupler separate and the blade cuts the cable in the guide channel.

A breakaway coupler includes a main body and a secondary body, removably attached to the main body. First and second attachment features are formed on the main and secondary bodies to permit attachment to first and second structures. A breakaway member connects the main and secondary bodies. A guide channel passes through an overlapped portion of the main and secondary bodies and accepts a cable therein. A blade passes across the guide channel to sever the cable when the secondary body is detached from the main body. In operation, a cable clamp frictionally holds the cable. The cable clamp is connected to the breakaway coupler, which is in turn connected to a fixed structure, e.g., a pole. When an excess force is applied to the cable, the main and secondary bodies of the breakaway coupler separate and the blade cuts the cable in the guide channel.

A dropped conductor sensor includes a housing installable on a first conductor; a sensor supported in the housing and configured to sense in real time at least one of an acceleration, a vibration, a tilt, a roll, or an angular displacement of the dropped conductor sensor; and an antenna in the housing, the antenna configured to transmit a signal including information sensed by the sensor away from the dropped conductor sensor in real time. A monitoring system including a dropped conductor sensor, and a method of monitoring a conductor using a dropped conductor sensor are also provided.

Connection joint for cables for a cable stringing plant, comprising at least one first tubular element (18) to which a first segment (22) of a flexible member (19) is attached and positioned rotatable, at least with respect to a longitudinal axis (L) of the joint, inside a second tubular element (23) open at a first end and closed at the other end by a bottom wall (25); the bottom wall (25) comprises at least one hole (26) from which a second segment (27) of the flexible member (19) emerges; the second segment (27) is attached to a portion (32) of a third tubular element (31); the second and third tubular elements (23, 31) are provided on opposite ends with a corresponding hole (29, 35) directed substantially in a longitudinal direction and able to house a respective segment of cable (11a, 11b) to be laid.

This invention relates to an apparatus (1) for attaching restraining means (10, 11) to a line (3) and more specifically, but not exclusively, to an apparatus (1) for attaching a safety net to a powerline. Replacement of transmission lines (3) is a laborious process and can be very dangerous, especially when overhead lines (3), or earth wires located above live lines (3), must be replaced. There is a real risk that if the overhead line (3) fails it may fall onto the live lines (3) below and cause damage to expensive infrastructure and injury or death. The invention provides an apparatus (1) for attaching restraining means (10, 11) to a line (3) comprising two or more members movable relative to each other between an open position wherein a line (3) is engageable by the apparatus (1) and a closed position wherein a line (3) is engaged by the members. At least one of the members including restraint attachment means for attaching a restraint (10, 11) to the apparatus (1).

This invention relates to an apparatus (1) for attaching restraining means (10, 11) to a line (3) and more specifically, but not exclusively, to an apparatus (1) for attaching a safety net to a powerline. Replacement of transmission lines (3) is a laborious process and can be very dangerous, especially when overhead lines (3), or earth wires located above live lines (3), must be replaced. There is a real risk that if the overhead line (3) fails it may fall onto the live lines (3) below and cause damage to expensive infrastructure and injury or death. The invention provides an apparatus (1) for attaching restraining means (10, 11) to a line (3) comprising two or more members movable relative to each other between an open position wherein a line (3) is engageable by the apparatus (1) and a closed position wherein a line (3) is engaged by the members. At least one of the members including restraint attachment means for attaching a restraint (10, 11) to the apparatus (1).

A dropped conductor sensor includes a housing installable on a first conductor; a sensor supported in the housing and configured to sense in real time at least one of an acceleration, a vibration, a tilt, a roll, or an angular displacement of the dropped conductor sensor; and an antenna in the housing, the antenna configured to transmit a signal including information sensed by the sensor away from the dropped conductor sensor in real time. A monitoring system including a dropped conductor sensor, and a method of monitoring a conductor using a dropped conductor sensor are also provided.

A dropped conductor sensor includes a housing installable on a first conductor; a sensor supported in the housing and configured to sense in real time at least one of an acceleration, a vibration, a tilt, a roll, or an angular displacement of the dropped conductor sensor; and an antenna in the housing, the antenna configured to transmit a signal including information sensed by the sensor away from the dropped conductor sensor in real time. A monitoring system including a dropped conductor sensor, and a method of monitoring a conductor using a dropped conductor sensor are also provided.