Structural Characteristics Of Bolt-type Tension Clamps

In the overhead line hardware system, bolted type strain clamp forms its unique structural form with its simple mechanical design components. The dead end strain clamp type typically uses high-strength aluminum alloy or forged metal for its main body, with an overall geometry of a U-shaped clamp combined with a pressure plate assembly. The wire groove section fits tightly against the conductor joint.

At the component level, a suitable number of bolt assemblies are installed between the U-shaped body and the pressure plate. These bolts, nuts, washers, and other fasteners form a clamping mechanism. This structure allows the pressure plate to apply pressure along the axis towards the conductor when under stress, keeping the conductor within the corrugated grooves inside the clamp, thus generating and maintaining friction.

Regarding material specifications, the main metal components are typically strengthened through heat treatment and surface treatments such as galvanizing or anti-oxidation treatments enhance weather resistance and corrosion resistance. Bolts and matching fasteners are made of hot-dip galvanized steel to improve connection durability.

The bolted dead end clamp design allows for adaptation to conductors with different cross-sections, and the bolt tightening force can be adjusted according to the conductor diameter, thereby enabling the wire groove inside the clamp to form a stable contact surface to cope with the stress state of the overhead line.