Anti-rotation device for cable stringing

A process for producing an anti-rotation device to resist twisting of a cable or wire as it is strung through a transmission/distribution network and over a sheave in the transmission/distribution network, said device comprising a tow component having at least one tail storage channel formed therein and connectable to the cable or wire at one end, and at least one tail component suspended from the tow component, wherein the at least tail component includes weighted tail sections removably connected end-to-end to one another and at least one electrically insulated tail section pivotally mounted end-to-end to the weighted tail sections between the tow component and the weighted tail sections, and positioned along the tow component so that the at least one tail component is completely nested in and along the at least one tail storage channel as the tow component and the at least one tail component are pulled through the sheave during the stringing of the cable, wherein said device is produced the process comprising:

• a) determining a peak rotational force twisting moment of the cable or wire as it is strung through the transmission/distribution network;
• b) determining a length and distributed weight requirement for the at least one tail component to produce a counter-moment, substantially more than or equal to and counter to the peak rotational force twisting moment of the cable or wire;
• c) providing
• (i) a number of the weighted tail sections determined to meet the length and distributed weight requirement of the at least one tail component, wherein the length requirement of the at least one tail component is constrained by the length of the at least one tail storage channel which extends between adjacent tail components of the at least one tail component mounted on the tow component, and the width is constrained by the width of the at least one tail storage channel, wherein the constrained length and width of the least one tail component, and the material and hence weight of each weighted tail section is determined by the distributed weight requirement to produce the required counter-moment produced by the at least one tail component, and wherein the weighted tail sections are adapted for end-to-end connection to one another, and
• (ii) the at least one electrically insulated tail channel adapted for end-to-end connection to the weighted tail sections, wherein the at least one electrically insulated tail section is of a lower density than the weighted tail sections and is comprised of materials selected from the group of dielectric compositions which include plastics, fibreglass, ceramic, aramid fibres, and
• d) connecting the weighted tail sections and the at least one electrically insulated tail section so as to form the at least one tail component, and connecting the at least one tail component to the tow component, wherein the pivotal end-to-end mounting between the weighted tail sections and the at least one electrically insulated tail section is configured to constrain articulation of the at least one tail component to solely within a single plane of bending of the tow component to thereby cause the at least one tail component to remain aligned with the tow component and the at least one tail storage channel during the pulling through the sheave.