A method for overhead transmission line installation includes tension pulling a transmission line over a path between a first support structure having a first mounting location and a second support structure having a second mounting location extending from the first mounting location to a first transition location on the second support structure, to a second transition location on the first support structure, and to the second mounting location. The transmission line is mounted at the first mounting location and the second mounting location. The mounting provides a slack portion of the transmission line between the first mounting location and the second mounting location. A portion of the slack portion is mounted proximate to the first mounting location or the second mounting location to provide an overhead transmission line extending between the first mounting location and the second mounting location and a remainder of the slack portion.

A passive optical network includes a central office providing subscriber signals; a fiber distribution hub including an optical power splitter and a termination field; and a drop terminal. Distribution fibers have first ends coupled to output ports of a drop terminal and second ends coupled to the termination field. A remote unit of a DAS is retrofitted to the network by routing a second feeder cable from a base station to the hub and coupling one the distribution fibers to the second feeder cable. The remote unit is plugged into the corresponding drop terminal port, for example, with a cable arrangement having a sealed wave division multiplexer.

A cable clamp for clamping drop cable clamp assemblies to main span cables. The cable clamp has a body that includes a main span cable guide and holders for supporting one or more drop cable clamp assemblies. The body has a lower body half and an upper body half. The lower body half is movable relative to the upper body half between an open position and a clamping position. When the body is in a clamping position the lower body half and upper body half of the main span cable guide form a main span cable cradle. A stem extends through the lower body half of the main body section and is releasably secured to the upper body half of the main body section such that rotational movement of the stem is translated to movement of the lower body half relative to the upper body half. The stem has a collar and a spring is positioned on the stem between the collar and the lower body half of the intermediate body section to normally bias the body to the clamping position.

An apparatus and method for accessing and/or repairing a select subset of fibers in an ADSS fiber optic cable. The apparatus includes a housing extending from a first end to a second end. A first fiber optic splice tray is positioned within the housing closer to the first end than to the second end. A second fiber optic splice tray is positioned within the housing and spaced apart from the first splice tray. A tension member extends through the housing and includes a first mechanical connector near the first end and a second mechanical connector near the second end. The connectors provide an attachment location for deadends at either end for transferring tension from the undamaged portion of the ADSS fiber optic cable.

An apparatus and method for accessing and/or repairing a select subset of fibers in an ADSS fiber optic cable. The apparatus includes a housing extending from a first end to a second end. A first fiber optic splice tray is positioned within the housing closer to the first end than to the second end. A second fiber optic splice tray is positioned within the housing and spaced apart from the first splice tray. A tension member extends through the housing and includes a first mechanical connector near the first end and a second mechanical connector near the second end. The connectors provide an attachment location for deadends at either end for transferring tension from the undamaged portion of the ADSS fiber optic cable.

A distributed sensing system may include (1) a signal transmitter that transmits a signal for propagation along and external to a powerline conductor, (2) a signal receiver that receives at least a portion of the transmitted signal, and (3) an analysis subsystem that (a) monitors at least one characteristic of the received portion of the transmitted signal and (b) determines a status of the powerline conductor based at least in part on the at least one characteristic.

An overhead cable for the transmission of low-voltage and medium-voltage energy and digital signals, including a central fiber-optic cable, surrounded by a protective covering of the central fiber-optic cable and around such protective covering of such fiber optics by at least an aluminum alloy layer for the transmission of low-voltage and medium-voltage electric power or neutral wire and the covering thereof, where at least one aluminum alloy layer includes a 6101 aluminum alloy wire that has been heat treated, submitting the same to a temperature within a range of 260 and 300 C. and a treatment process for the aluminum alloy drawn wire.

Electrical transmission and distribution lines and methods for the installation and interrogation of such electrical lines. The electrical lines include overhead electrical cables that include a strength member and at least one optical fiber coupled to the strength member. Termination arrangements are configured to secure the electrical cables to a support tower while enabling the passage of the optical fiber(s) through the termination arrangement without damaging the optical fibers. Optical fibers from two adjacent electrical cable segments may also be fused to enable the interrogation of the two cable segments from a single interrogation device.

A computer-readable, non-transitory medium storing a program that causes a computer to execute a process is provided. The process includes acquiring a backward Rayleigh scattered light from an optical fiber composite overhead ground wire of an electrical power transmission facility; generating vibration information of a frequency band including a natural frequency of the optical fiber composite overhead ground wire, on a basis of the backward Rayleigh scattered light; and detecting abnormality of the electrical power transmission facility, on a basis of the vibration information.

The present disclosure describes a grommet formed of a polymeric material and adapted for bundling a plurality of discrete cables, comprising a main body having a generally cylindrical profile surrounding an interior cavity, the main body further having a length, a thickness, and a longitudinal axis; and a central member integrally coupled to the main body and located within the interior cavity of the main body, the central member extending generally parallel to the longitudinal axis of the main body. Methods of bundling cables are also provided.