A new design has been introduced to the helical fittings, due to its simplicity and reliability. The success of the helical fittings is based in a small radial pressure exertied by each rod over a large area.
The main function of the armour rods is to protect conductors/strands against bending, compression, abrasion and arcover damage and to provide restorative repair. They are usually installed in the suspension points.
The dead-ends have the main function to fix a pole the cables, conductors, strands, structures, insulators, etc. The area of the loop always must be protect with a suitable thimble, pulley, insulator etc.