70 series

Transmission bundle blocks
Transmission class line construction is very specialized. Terrain, spans, structures and pulls are all larger and the conductor can require a plethora of construction configurations. The configurations can range from single to bundles of two, three, four or six per phase. For all these reasons, the configuration and quality of the blocks which interface with the conductor are of the utmost importance.

Key Features


Ideal for versatile field reconfiguration to meet the demands of changing stringing needs and conditions.


Rigid frames made up of hot-dipped galvanized steel are available in 3 designs: symmetrical, slimline, or offset. Bundle blocks are available in 2, 3, 4, and 6-conductor configurations.


Meeting the vast range of transmission conductors with with 20″, 22″, 28″, 35”, and 42″ (OD) sheaves.


Available block grounds and helicopter options.