Counterweights

In certain cases, when the power line runs over a cross-country terrain, intermediate tower tends to “tighten” the conductor. This phenomenon usually occurs on the intermediate tower located in a depression through reduction of weight load due to its redistribution to the adjacent towers with higher elevation. It results in the change of a wind and weight load ratio of a string, increase of the string displacement in a wind condition, danger of subtolerant (by dielectric strength limit) air gaps to the tower body, and even rise of a string with a wire towards the tower crossarm. In order to avoid “tightening” of wires at the intermediate towers, specifically rated counterweights are attached to the suspension clamp.

Counterweights for the suspension clamps, type БЛ are intended for installation on the suspension clamps to avoid “tightening” of wires at the intermediate towers located in a cross-country depressions, and reduction of string displacement under the wind load. Counterweights are made so as to allow stepwise adjustment of the weight. (Please refer to the table for the relevant names and makes of the suspension clamps).

Counterweights for two, three, four, and five wires in a bundle phase conductor are intended for installation on the suspension clamps to avoid “tightening” of wires at the intermediate towers located in a cross-country depressions, and reduction of string displacement under the wind load. Counterweights are made so as to allow stepwise adjustment of the weight. (Please refer to the table for the relevant names and makes of the suspension clamps). Counterweights, type БЛ, 2БЛ, 3БЛ, 4БЛ, 5БЛ meet the requirements of TU U 31.2-30255335-002:2006.